These release notes present upgrade information to ensure that your Cisco 6100 chassis can accommodate dual-port DMT-2 ATU-C or quad-port flexi ATU-C modules.

These release notes describe the following topics:

Installation Prerequisites

This section provides the following prerequisites needed to install the thermal upgrade kit for your Cisco 6100 chassis:

Tool and Equipment Requirements
Space Requirements
Power Requirements
Rack-Mounting Requirements

Note For additional site requirements, refer to the Cisco 6100 with NI-1 Direct Connect Installation Guide.

Tool and Equipment Requirements

Table 1 lists the tools and equipment required to install and remove the Cisco 6100 Series system components.

Table 1: Tools and Equipment Requirements Checklist

Check	Tools and Equipment
	Hardware Components
	Cisco 6100 Thermal Upgrade Kit. Fan tray Fan chassis Three fans Air filter Thermal guard—Required when installing dual-port DMT-2 ATU-C or quad-port flexi ATU-C modules in the Cisco 6100 Cisco 6100 chassis ventilation cover New power rating label
	Direct Connect configuration already installed in the rack with a Cisco 6100 and Cisco 6120.
	Tools
	A 3/16-inch flat-head screwdriver.
	A Phillips-head screwdriver.
	A one-quarter inch socket driver or wrench.
	Necessary equipment for ESD protection—Required whenever you handle Cisco DSLAM¹ equipment, which includes the chassis, modules, and cards.
	Mounting screws—Needed to mount the fan tray to the rack. The fan tray mounting screws are included in the Cisco 6100 Thermal Upgrade Kit.
	Wire wrapping tool.
	Wire stripper.
	Wire for connections. 24 to 28 AWG² solid—Used for the fan tray (P2) to Cisco 6100 chassis (P14) connection 12 AWG black and red copper solid or stranded—Used for Cisco 6100 chassis power connections 14 to 18 AWG black and red copper solid or stranded—Used for fan tray power connections 12 AWG or thicker green or green with yellow stripes copper stranded—Used for the Cisco 6100 chassis grounding 14 AWG or thicker green or green with yellow stripes copper stranded—Used for the fan tray grounding
	Ferrites that yield an impedance greater than 200 ohms +/- 20 percent at 100 MHz. Note Ferrites are shipped with the network interface module. However, more ferrites are needed when cabling the power connections, the DS3 subtending I/O card, and the system I/O card.
	Tie wraps.
	Coaxial cable. Type 734A or equivalent Type 735A or equivalent

¹DSLAM = digital subscriber line access multiplexer
²AWG = American Wire Gauge

Two people are needed for lifting, installing, and removing a chassis and some of its components (for example, the rear door).

Note The Cisco 6100 Series system has no internal user-serviceable parts. However, you can add or remove a module or a fan without removing power from the system.

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Space Requirements

The Cisco 6100 Series system fits in a 23-inch wide rack. See Table 2 for individual rack space requirements.

Table 2: Rack Space Requirements

Component	Rack Space	Height	Depth
Cisco 6100 chassis	9 RUs¹	15.75 in. (40.00 cm)	12 in. (30.48 cm)
POTS splitter Cisco 6120 Siecor POTS splitter	4 RUs	7 in. (17.78 cm)	12 in. (30.48 cm)
Fan tray²	2 RUs	3.5 in. (8.89 cm)	12 in. (30.48 cm)

Component

Rack Space

Height

Depth

Cisco 6100 chassis

9 RUs¹

15.75 in. (40.00 cm)

12 in. (30.48 cm)

POTS splitter

Cisco 6120
Siecor POTS splitter

4 RUs

7 in. (17.78 cm)

12 in. (30.48 cm)

Fan tray²

2 RUs

3.5 in. (8.89 cm)

12 in. (30.48 cm)

¹RU = rack unit. One RU is equal to 1.75 inches (4.45 cm).
²Leave 1 RU of space under the fan tray. This space allows for the intake plenum and for cabling back to front for the OC-3c network interface module.

Power Requirements

The central office (CO) power source or rectifier supplies external power to the system as -48 VDC from to the fuse and alarm panel. Power connections from the fuse and alarm panel are wired separately to the Cisco 6100 chassis and the fan tray. Connections for single- and dual- power feeds are provided. The power input connections are redundant, and only one is absolutely necessary for system operation. The nominal voltage is -48 VDC; the minimum operating value is -36 VDC; and the maximum operating value is -60 VDC.

Before you connect the system to a power source, verify that the power source is properly grounded and that it falls within the internal power supply rating. For the internal power supply rating for the Cisco 6100 chassis, refer to the power supply label on the back of the chassis.

Depending on your configuration type, calculate the typical power required for each Cisco 6100 Series component. After you calculate the typical power, determine the minimum fuse value for each component that is wired to the fuse and alarm panel. Use Table 3 to calculate the minimum fuse rating necessary for each of your Cisco 6100 Series system components.

Note The power rating label supplied on the rear of each chassis and fan tray indicates the maximum fuse value for the chassis or the fan tray.

Table 3: Fuse Calculation for the Cisco 6100 Series System Components

Component	Instructions	Calculation
Cisco 6100¹^,²
1a	If you are using DMT-2 ATU-C modules, multiply 12W by the total number of modules in the Cisco 6100.
1b	If you are using flexi ATU-C modules, multiply 18W by the total number of modules in the Cisco 6100.
1c	Add the amounts for lines 1a through 1b.
2	Enter 11W for the DS3 STM³ for the subtending host (if you are installing a subtended network).
3	Enter 48W for the DS3 or OC-3c network interface module.
4	Enter 7W for the system controller module.
5	Add lines 1c, 2, 3, and 4. This is the typical power required for the Cisco 6100.
6	Divide line 5 by 48. This is the nominal current for the Cisco 6100.
7	Multiply line 6 by 1.25. This is the minimum fuse rating needed to operate the Cisco 6100 in your system.
Fan Tray
8	A 1.25A fuse is required for each fan tray wired to the fuse and alarm panel. A fan tray must be installed under a Cisco 6100 chassis when either dual-port DMT-2 ATU-C or quad-port flexi ATU-C modules are installed in the chassis.

¹For a Direct Connect configuration, the maximum number of Cisco 6100 chassis is two per rack.
²Complete this section for each subtending host.
³STM = subtend host module.

Caution Do not use fuses that exceed 20A.

Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your back.

Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

- This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

- When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

- If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.

Cisco strongly recommends that you mount the Cisco 6100 Series system in a rack. Ensure that vertical hole spacing on the rack rails meets standard EIA-310-C requirements of 1 inch (2.54 cm) spacing. All portions of the rack are equal to or less than the NEBS maximum allowances of 12 inches (30.48 cm).

When you install the Cisco 6100 Series system in a rack, be sure to allow enough room to access the backplane of the unit for wiring and cabling purposes. The majority of the connectors are located on the backplane.

General Safety Precautions

Before working on the equipment, be aware of standard safety practices and the hazards involved in working with electrical circuitry to prevent accidents. Adhere to the following cautions and warnings for safe and hazard-free installation.

Note To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.

Caution Proper ESD protection is required whenever you handle Cisco DSLAM equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage whenever they are removed from the chassis.

Caution If the modules are installed when you apply power to the system, you could damage the modules and the chassis.

Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents.

Warning The customer 48 volt power system must provide reinforced insulation between the primary AC power and the 48 VDC output.

Warning There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions.

Warning Use copper conductors only.

Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.

Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.

Warning An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no exposed portion of the DC-input power source wire extends from the terminal block plug.

Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place.

Warning When installing the unit, the ground connection must always be made first and disconnected last.

Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use.

Warning Incorrect connection of this or connected equipment to a general purpose outlet could result in a hazardous situation.

Warning Read the installation instructions before you connect the system to its power source.

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

Warning This unit has more than one power supply connection; all connections must be removed completely to completely remove power from the unit.

Warning To prevent the system from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 104°F (40°C).

Warning Secure all power cabling when installing this unit to avoid disturbing field-wiring connections.

Warning The power supply circuitry for the equipment can constitute an energy hazard. Before you install or replace the equipment, remove all jewelry (including rings, necklaces, and watches). Metal objects can come into contact with exposed power supply wiring or circuitry inside the DSLAM equipment. This could cause the metal objects to heat up and cause serious burns or weld the metal object to the equipment.

Warning Ultimate disposal of this product should be handled according to all national laws and regulations.

Warning This unit is intended for installation in restricted access areas. A restricted access area is where access can only be gained by service personnel through the use of a special tool, lock and key, or other means of security, and is controlled by the authority responsible for the location.

Warning Connect the unit only to DC power source that complies with the Safety Extra-Low Voltage (SELV) requirements in IEC 60950 based safety standards.

Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations.

Warning Care must be given to connecting units to the supply circuit so that wiring is not overloaded.

Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.

Installing the Cisco 6100 Thermal Upgrade Kit

The following sections detail the installation procedures for upgrading your Cisco 6100 chassis to accommodate dual-port DMT-2 or quad-port flexi ATU-C modules.

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Note Before installing and cabling the equipment, be aware of standard safety practices and the hazards involved in working with electrical circuitry to prevent accidents. See the "General Safety Precautions" section for all cautions and warnings necessary to ensure a safe and hazard-free installation.

To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.

Installation Checklist

When you upgrade your Cisco 6100 chassis, be sure that you follow the installation procedures in the proper sequence. Table 4 is a checklist of the installation steps in the order in which they should occur.

Table 4: Installation Checklist

Check	Installation Procedure
	1. Remove the power from the system.
	2. Measure the rack space.
	3. Disconnect the ViewRunner system (if applicable).
	4. Disconnect the network interface modules (if applicable).
	5. Disconnect the subtended network configuration (if applicable).
	6. Disconnect the Cisco 6100 power connections.
	7. Disconnect the Cisco 6100 from the Cisco 6120 (if applicable).
	8. Disconnect the Cisco 6100 chassis ground.
	9. Stabilize the rack (if applicable).
	10. Move any Cisco 6100 Series system hardware components (if applicable).
	11. Install the fan tray in the rack.
	12. Install the thermal guard on the Cisco 6100 chassis.
	13. Install the filler faceplates in the open slots.
	14. Ground the Cisco 6100.
	15. Ground the fan tray.
	16. Reconnect the Cisco 6100 chassis to the Cisco 6120 (if applicable).
	17. Attach the Cisco 6100 power connections to the fuse and alarm panel.
	18. Attach the fan tray power connections to the fuse and alarm panel.
	19. Connect the alarm contacts. Note The fan tray alarm contacts (P14, pins 7 and 8) on the chassis must be connected to the fan tray so that the alarms can be transmitted to the ViewRunner management software.
	20. Pull all of the modules away from the backplane connection.
	21. Verify that the DIP switches are set to the OFF position.
	22. Reconnect the subtended network configuration (if applicable).
	23. Apply the power to the system.
	24. Verify that the fan tray is operational.
	25. Reseat all of the modules.
	26. Connect the network interface module to the network (if applicable).
	27. Attach the Cisco 6100 chassis ventilation cover.
	28. Attach the new power rating label.
	29. Verify that the Cisco 6100 front door is closed.
	30. Connect the ViewRunner system to the Cisco 6100 (if applicable).
	31. Close the rear door (if applicable).
	32. Run the connection test procedures.

Installation Procedures

The following sections detail the installation procedures for the Cisco 6100 thermal upgrade kit. This kit is required when using a Cisco 6100 chassis with dual-port DMT-2 or quad-port flexi ATU-C modules in your system.

Remove Power

The system should not be powered while you install and connect the Cisco 6100 system hardware components.

Remove power to the system with one of the following methods:

Remove the fuses from the fuse and alarm panel

Turn off the breakers in the fuse and alarm panel

Measure Rack Space

When upgrading your system to accommodate dual-port DMT-2 or quad-port flexi ATU-C modules, you may have to move the hardware components in the rack to accommodate the fan tray. Figure 1 shows the components for a Direct Connect with a POTS splitter configuration when you are using a Cisco 6100 chassis. The fan tray is installed directly below the Cisco 6100 chassis.

Figure 1: Direct Connect with a POTS Splitter Configuration in the Cisco 6100

Complete the following steps to measure the rack space:

Step 1 Use Table 5 to calculate the rack space necessary for your Cisco 6100 system configuration. The total amount of rack space should not exceed 42 RUs. If your total configuration exceeds 42 RUs, either replan your configuration or use more than one rack to house the Cisco 6100 Series system components.

Table 5: Rack Space Calculation for the Cisco 6100 Series System Configurations

Line	Instructions	Calculation
1	Total number of Cisco 6100 chassis in the rack—Maximum is two chassis per rack (including subtending host and subtended node chassis).
2	Total number of fan trays in the rack—Used when installing either dual-port DMT-2 ATU-C or quad-port flexi ATU-C modules in the chassis.
3	Total number of POTS splitters in the rack.
4	Multiply 9 RUs by the total number of chassis on line 1.
5	Multiply 3 RUs by the total number of fan trays on line 2.¹
6	Multiply 4 RUs by the total number of POTS splitters on line 3.
7	Add lines 4 through 6 for the total number of RUs needed with your Direct Connect with a POTS splitter configuration using Cisco 6100 chassis.

¹This amount includes the 1 RU of space necessary for an intake plenum and cabling back to front for the OC-3c network interface module.

Step 2 Determine if you need to prepare the rack to accommodate the fan tray and install the thermal guard.

If one or both of the following conditions is present, go to the following subsection:

The POTS splitter is not installed at the bottom of the rack and 3 RUs of space is not available between the Cisco 6100 and POTS splitter.
The Cisco 6100 Series system is installed in a side-by-side rack configuration.

If you have sufficient space available in your rack configuration, the POTS splitter is installed at the bottom of the rack, and your system is not installed in a side-by-side rack configuration, go to the "Disconnect the Cisco 6100 Power Connections" section.

Disconnect ViewRunner

If you need to prepare the rack to accommodate the fan tray and install the thermal guard, you will need to complete the following steps to disconnect the ViewRunner system:

Step 1 Open the optional rear door, if your system has one.

Step 2 Use a Phillips-head screwdriver to remove the two backplane screws that hold the plastic ESD shield over the system I/O card. Keep these backplane screws and the plastic ESD shield for use when you reconnect the ViewRunner system.

Step 3 Disconnect the ViewRunner system from the Cisco 6100 by removing the Ethernet cable from the RJ-45 connector on the system I/O card.

Disconnect the Network Interface Modules

If you need to prepare the rack to accommodate the fan tray and install the thermal guard, you will need to complete the following steps to disconnect the network interface modules:

Step 1 Disconnect the DS3 network interface module from the network if you have a DS3 network interface module installed in slot 10 of the Cisco 6100.

a. Disconnect the end of the cable that attaches to the receive (J4) DS3 BNC connector on the system I/O card on the Cisco 6100 backplane.

b. Disconnect the end of the cable that attaches to the transmit (J3) DS3 BNC connector on the system I/O card on the Cisco 6100 backplane.

Step 2 Open the Cisco 6100 front door if you have an OC-3c network interface module installed in slot 10 of the Cisco 6100.

Step 3 Disconnect the optical fiber going to the transmit and receive connectors in the inset on the front panel of the OC-3c network interface module.

Step 4 Pull the fiber through to the front of the chassis.

Step 5 Close the front door of the chassis.

Disconnect the Subtended Network Configuration

If have a subtended network configuration and you need to prepare the rack to accommodate the fan tray and install the thermal guard, you will need to complete the following steps to disconnect the system I/O card on the subtending host chassis backplane and the DS3 subtending I/O card on the back of each subtended node chassis backplane:

Step 1 Remove the coaxial cables from the two DS3 BNC connectors (J3 [TX] and J4 [RX]) for the system I/O card on a subtended node chassis backplane.

Step 2 Use a Phillips-head screwdriver to remove the two backplane screws that hold the plastic ESD shield over the DS3 subtending I/O card. Keep these backplane screws and the plastic ESD shield.

Step 3 Remove the coaxial cables from the four DS3 BNC connectors (TX1, RX1, TX2, and RX2) on the DS3 subtending I/O card.

Disconnect the Cisco 6100 Power Connections

To disconnect the Cisco 6100 power connections, complete the following steps:

Note If you do not have 12 AWG wire installed, you will replace these wires with a larger gauge wire later in the procedures.

Step 1 Use a socket driver or a Phillips-head screwdriver to remove the clear cover over the Cisco 6100 power connections.

Step 2 Disconnect the wires connecting the Cisco 6100 chassis to the fuse and alarm panel (POS RTN and NEG DC connections) as shown in Figure 2 (dual-power feed) and Figure 3 (single-power feed).

These wires will be replaced with a larger gauge wire later in the procedures.

Figure 2: Power Return Connections for the Cisco 6100—Dual-Power Feed

Figure 3: Power Connections for the Cisco 6100—Single-Power Feed

Disconnect the Cisco 6100 from the Cisco 6120

If you need to prepare the rack to accommodate the fan tray and install the thermal guard, you will need to disconnect the Champ cables from the Cisco 6100 (connectors J39 through J44) to the Cisco 6120 (connectors J1 through J6). Table 6 shows the corresponding Cisco 6100 and Cisco 6120 connectors.

Table 6: Cisco 6100 and Cisco 6120 Corresponding Connectors

Cisco 6100 Connector	Cisco 6120 Connector
J39	J3
J40	J1
J41	J5
J42	J4
J43	J2
J44	J6

Disconnect the Cisco 6100 Chassis Ground

To disconnect the Cisco 6100 chassis ground connection, complete the following steps:

Note If you do not have 12 AWG wire installed, you will replace these wires with a larger gauge wire later in the procedures.

Step 1 Use a 3/16-inch flat-head screwdriver to loosen the screw on the rack.

Step 2 Unhook the end of the copper wire that is around the screw on the rack.

Step 3 Loosen the compression screw provided on the grounding lug of the Cisco 6100.

Step 4 Remove the other end of the wire.

Step 5 Tighten the compression screw.

Stabilize the Rack

If you need to prepare the rack to accommodate the fan tray and install the thermal guard, you will need to stabilize the rack for the new hardware components.

Verify that your Cisco 6100 Series system is installed from the bottom to the top of the rack so that the rack remains stable. If your system is not installed from the bottom to the top of the rack, make the necessary adjustments to the rack as discussed in the "Move Cisco 6100 Series System Hardware Components" section.

Move Cisco 6100 Series System Hardware Components

If you need to prepare the rack to accommodate the fan tray and install the thermal guard, you will need to complete the following steps to move the Cisco 6100 chassis or the POTS splitter:

Step 1 Close and secure the Cisco 6100 rear door (if applicable).

Step 2 Use a Phillips-head screwdriver to remove the mounting screws that bolt the Cisco 6100 chassis in the rack.

Gently move the Cisco 6100 chassis up in the rack to accommodate the fan tray (3 RUs) (if your racks are not side-by-side). The top of the fan tray should be flush with the bottom of the chassis.

: Use the mounting screws and a Phillips-head screwdriver to bolt the Cisco 6100 in the rack.

Gently remove the Cisco 6100 chassis from the rack (if your racks are side-by-side).

Step 3 Use a Phillips-head screwdriver to remove the mounting screws that bolt the POTS splitter in the rack.

Gently move the POTS splitter down in the rack to accommodate the fan tray (3 RUs).

Use the mounting screws and a Phillips-head screwdriver to bolt the POTS splitter in the rack.

Note If you are migrating from dual-port to quad-port ATU-C modules, refer to the Cisco 6100 with NI-1 Direct Connect Installation Guide for conversion procedures. Different cables and an additional POTS splitter will be needed.

Install the Fan Tray

To install the fan tray in the rack, complete the following steps:

Note If you are using more than one Cisco 6100 chassis in a Direct Connect with a POTS splitter configuration, you must install a fan tray under each chassis.

Step 1 Place the fan tray chassis on a flat and stable surface (for example, a table top).

Step 2 Locate the first fan and unscrew the thumbscrew that holds the fan in place (the screw at the top of each fan), as shown in Figure 4.

Figure 4: Fan Tray Thumbscrews

Step 3 Carefully remove the fan by pulling it toward you. The fan is located on slide rails for easy removal and installation. (See Figure 5.)

Figure 5: Removing the Fan from the Fan Tray

Step 4 Place the fan on a flat and stable surface (for example, a table top) until you are ready to reinsert it into the fan tray.

Step 5 Repeat Steps 2 through 4 for each fan.

Step 6 Position the fan tray chassis, which occupies 2 RUs of space, above the POTS splitter.

Allow an additional 1 RU of space between the fan tray and the POTS splitter. This space allows for the intake plenum and for cabling back to front for the OC-3c network interface module.

Step 7 Use four mounting screws and a Phillips-head screwdriver to bolt the fan tray in the rack above the POTS splitter. See Figure 1 for the correct placement of the fan tray.

Step 8 Align a fan with the fan tray slide rails inside the fan tray.

Step 9 Slide the fan into the fan tray.

Step 10 Tighten the thumbscrew above the fan.

Step 11 Repeat Steps 8 through 10 for each fan.

Note For information about fan and air filter replacement, refer to the Cisco 6100 Series System Fan Tray Configuration Notes.

Install the Thermal Guard on the Cisco 6100

A thermal guard is required when using the Cisco 6100 chassis with dual-port DMT-2 ATU-C or quad-port flexi ATU-C modules.

The thermal guard is either installed with the Cisco 6100 chassis in the rack or out of the rack.

Install the Thermal Guard on the Cisco 6100 in the Rack

To install the thermal guard on the Cisco 6100 chassis while it is in the rack, complete the following steps:

Step 1 Angle the thermal guard above the chassis, as shown in Figure 6.

Figure 6: Thermal Guard Installation

Step 2 Place the lip of the thermal guard under the lip of the Cisco 6100 chassis.

Step 3 Gently push the back of the thermal guard onto the chassis.

Step 4 Use six screws (three on each side of the chassis) to secure the thermal guard to the chassis, as shown in Figure 6.

Note If you are installing the thermal guard while the chassis is in the rack, you might not be able to secure the thermal guard with all six screws. If this is the case, only the rear screw on each side is required to secure the thermal guard.

Figure 7 shows an installed thermal guard.

Figure 7: Thermal Guard Installed on Cisco 6100 Chassis

Install the Thermal Guard on the Cisco 6100 out of the Rack

To install the thermal guard on the Cisco 6100 chassis while it is out of the rack, complete the following steps:

Step 1 Place the Cisco 6100 chassis on a stable surface (for example, a table top).

Step 2 Angle the thermal guard above the chassis, as shown in Figure 8.

Figure 8: Thermal Guard Angle Over Cisco 6100

Step 3 Place the lip of the thermal guard under the lip of the Cisco 6100 chassis.

Step 4 Gently push the back of the thermal guard onto the chassis.

Step 5 Use six screws (three on each side of the chassis) to secure the thermal guard to the chassis, as shown in Figure 8.

Figure 9 shows an installed thermal guard.

Figure 9: Thermal Guard Installed on Cisco 6100 Chassis

Install Filler Faceplates

You must install filler faceplates in all open slots of each chassis. The filler faceplate installation is similar to the module installation.

To install the filler faceplates in the Cisco 6100 or Cisco 6120, complete the following steps:

Step 1 Open or remove the Cisco 6100 front door.

Step 2 Vertically align the filler faceplate edge with the module guides at the top and bottom of the slot.

Step 3 Lift up on the ejector tab and gently apply pressure to the bottom of the faceplate while pushing the filler faceplate into the slot.

Step 4 Push on the faceplate to fully seat the module.

Step 5 Press down on the ejector tab to secure the faceplate.

Ground the Cisco 6100 Chassis

Complete the following steps to connect the grounding lug on the Cisco 6100 chassis directly to the rack:

Caution Do not reuse the wire you removed in the "Disconnect the Cisco 6100 Chassis Ground" section, unless it is 12 AWG or larger.

Step 1 Verify that all paint or oxidation is removed from the rack at the point of the grounding connection.

Step 2 Measure enough wire (12 AWG or thicker green or green with yellow stripes stranded copper wire) to connect the Cisco 6100 to the rack. (See Figure 10 for grounding wire location.)

Note Make sure your wire is as short as possible to make the connection.

Step 3 Use a wire stripper to remove the casing from both ends of the wires.

Step 4 Use a 3/16-inch flat-head screwdriver to loosen the screw on the rack.

Step 5 Hook one end of the copper wire around the screw on the rack.

Step 6 Tighten the rack screw over the copper wire.

Step 7 Loosen the compression screw provided on the grounding lug of the Cisco 6100.

The grounding lugs are located in the upper left corner of each chassis (viewed from the rear).

Step 8 Insert the other end of the copper wire under the compression screw.

Step 9 Tighten the compression screw over the copper wire.

Note Do not ground the components in a rack by chaining them together.

The left side of Figure 10 shows how to ground the Cisco 6100 chassis.

Figure 10: Grounding the Cisco 6100 Chassis

Ground the Fan Tray

Complete the following steps to connect the grounding lug on the fan tray directly to the rack:

Step 1 Remove all paint or oxidation from the rack at the point of the grounding connection.

Step 2 Measure enough wire (14 AWG or thicker green or green with yellow stripes stranded copper wire) to connect the fan tray to the rack. (See Figure 10 for grounding wire location.)

Note Make sure your wire is as short as possible to make the connection.

Step 3 Use a wire stripper to remove the casing from both ends of the wires.

Step 4 Use a 3/16-inch flat-head screwdriver to loosen the screw on the rack.

Step 5 Hook one end of the copper wire around the screw on the rack.

Step 6 Tighten the rack screw over the copper wire.

Step 7 Loosen the compression screw provided on the grounding lug of the fan tray.

The grounding lug is located in the upper left corner of each chassis (viewed from the rear).

Step 8 Insert the other end of the copper wire under the compression screw.

Step 9 Tighten the compression screw over the copper wire.

Note Do not ground the components in a rack by chaining them together.

Reconnect the Cisco 6100 to the Cisco 6120

If you disconnected the Cisco 6100 from the Cisco 6120 in the "Disconnect the Cisco 6100 from the Cisco 6120" section, connect the Champ cables from the Cisco 6100 (connectors J39 through J44) to the Cisco 6120 (connectors J1 through J6). Table 7 shows the corresponding Cisco 6100 and Cisco 6120 connectors.

Table 7: Cisco 6100 and Cisco 6120 Corresponding Connectors

Cisco 6100 Connector	Cisco 6120 Connector
J39	J3
J40	J1
J41	J5
J42	J4
J43	J2
J44	J6

Attach Cisco 6100 Power Connections

Caution To prevent the system from powering up, do not install the fuses at this time. If the fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is wired.

You can wire the power connections from the Cisco 6100 to the fuse and alarm panel for either dual- or single-power feed.

Note The clear cover was removed in the "Disconnect the Cisco 6100 Power Connections" section.

Note Connect each Cisco 6100 Series system component to a separate fuse. Do not power the components in the rack by chaining them together.

Attach Cisco 6100 Power Connections for a Dual-Power Feed

Complete the following steps to attach the Cisco 6100 power connections (P13) to the fuse and alarm panel for a dual-power feed:

Caution Do not reuse the wire you removed in the "Disconnect the Cisco 6100 Power Connections" section, unless it is 12 AWG or larger.

Step 1 Measure enough wire (12 AWG black and red copper solid or stranded wire) to connect each of the Cisco 6100 power input connections to the fuse and alarm panel.

Figure 11 shows the Cisco 6100 power input connections wired to the fuse and alarm panel.

Figure 11: Power Input Connections for the Cisco 6100—Dual-Power Feed

Step 2 Use a wire stripper to remove the casing from both ends of the wires.

Step 3 Use a Phillips-head screwdriver to attach a wire to the -48V_A power input connection on the Cisco 6100 (P13).

Step 4 Loop the wire through the ferrite as shown in Figure 12.

Figure 12: Wire Looped through Ferrite

Step 5 Attach the wire to a fuse and alarm panel NEG (negative) DC connector.

Step 6 Use a Phillips-head screwdriver to attach a wire to the -48V_B power input connection on the Cisco 6100 (P13).

Step 7 Loop the wire through the ferrite as shown in Figure 12.

Step 8 Attach the wire to a fuse and alarm panel NEG DC connector.

Step 9 Measure enough wire (12 AWG black and red copper solid or stranded wire) to connect each of the Cisco 6100 power return connections to the fuse and alarm panel.

Figure 13 shows the Cisco 6100 power return connections wired to the fuse and alarm panel for a dual-power feed.

Figure 13: Power Return Connections for the Cisco 6100—Dual-Power Feed

Step 10 Use a wire stripper to remove the casing from both ends of the wires.

Step 11 Use a Phillips-head screwdriver to attach a wire to a -48V power return connection (-48RTN) on the Cisco 6100 (P13).

Step 12 Loop the wire through the ferrite as shown in Figure 12.

Step 13 Attach the wire to a fuse and alarm panel POS (positive) RTN connector.

Step 14 Repeat Steps 9 through 13 for the remaining -48V power return connection (-48RTN).

Step 15 Use a socket driver or a Phillips-head screwdriver to attach the clear cover over the Cisco 6100 power connections.

Attach Cisco 6100 Power Connections for a Single-Power Feed

Complete the following steps to attach the Cisco 6100 power connections (P13) to the fuse and alarm panel for a single-power feed:

Caution Do not reuse the wire you removed in the "Disconnect the Cisco 6100 Power Connections" section, unless it is 12 AWG or larger.

Step 1 Measure enough wire (12 AWG black and red copper solid or stranded wire) to connect each of the Cisco 6100 power connections to the fuse and alarm panel.

Figure 14 shows the Cisco 6100 power connections wired to the fuse and alarm panel for a single-power feed.

Figure 14: Power Connections for the Cisco 6100—Single-Power Feed

Step 2 Use a wire stripper to remove the casing from both ends of the wires.

Step 3 Use a Phillips-head screwdriver, to attach a wire to the -48V_A power input connection on the Cisco 6100 (P13).

Step 4 Loop the wire through the ferrite as shown in Figure 15.

Figure 15: Wire Looped through Ferrite

Step 5 Attach the wire to the fuse and alarm panel NEG DC connector.

Step 6 Use a Phillips-head screwdriver to attach a wire to a -48RTN power return connection on the Cisco 6100 (P13). See Figure 14 for correct placement.

Step 7 Loop the wire through the ferrite as shown in Figure 15.

Step 8 Attach the wire to the fuse and alarm panel POS RTN connector. See Figure 14 for correct placement.

Step 9 Use a Phillips-head screwdriver to attach a wire to connect the -48V_A and -48V_B power input connections to each other.

Step 10 Use a Phillips-head screwdriver to attach a wire to connect the -48RTN power return connections to each other.

Step 11 Use a socket driver or a Phillips-head screwdriver to attach the clear cover over the Cisco 6100 power connections.

Attach Fan Tray Power Connections

Power is fed from the fuse and alarm panel to the fan tray by a terminal block connector with four dual power connections (P1) located at the top of the fan tray backplane. Figure 16 shows the location of the power connection (P1) on the fan tray.

Note The fuse and alarm panel and wires are not provided by Cisco Systems, Inc.

Figure 16: Fan Tray Power Connection Location

Note Connect each Cisco 6100 Series system component to a separate fuse. Do not power the components in the rack by chaining the power connections to each other.

You can wire the power connections from the fuse and alarm panel to the fan tray for either dual- or single-power feed.

Attach Fan Tray Power Connections for a Dual-Power Feed

To attach the fan tray power connections to the fuse and alarm panel for a dual-power feed, complete the following steps:

Step 1 Use a socket driver or a Phillips-head screwdriver to remove the clear cover over the fan tray power connections.

Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the fan tray power connections to the fuse and alarm panel.

Figure 17 shows the power connections from the fan tray to the fuse and alarm panel for a dual-power feed.

Figure 17: Power Connections for the Fan Tray—Dual-Power Feed

Step 3 Use a wire stripper to remove the casing from both ends of the wires.

Step 4 Use a Phillips-head screwdriver to attach a wire to the -48VA power input connection on the fan tray (P1).

Step 5 Attach the wire to the fuse and alarm panel NEG DC connector. See Figure 17 for correct placement.

Step 6 Use a Phillips-head screwdriver to attach a wire to the -48VB power input connection on the fan tray (P1).

Step 7 Attach the wire to the fuse and alarm panel NEG DC connector. See Figure 17 for correct placement.

Step 8 Use a Phillips-head screwdriver to attach a wire to a -48RTN power return connection on the fan tray (P13).

Step 9 Attach the wire to a fuse and alarm panel POS RTN connector.

Step 10 Repeat Steps 8 and 9 for the remaining -48RTN power return connection.

Step 11 Use a socket driver or a Phillips-head screwdriver to attach the clear cover over the fan tray power connections.

Attach Fan Tray Power Connections for a Single-Power Feed

Complete the following steps to attach the fan tray power connections to the fuse and alarm panel for a single-power feed:

Step 1 Use a socket driver or a Phillips-head screwdriver to remove the clear cover over the fan tray power connections.

Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the fan tray power connections to the fuse and alarm panel.

Figure 18 shows the power connections from the fan tray to the fuse and alarm panel for a single-power feed.

Figure 18: Power Connections for the Fan Tray—Single-Power Feed

Step 3 Use a wire stripper to remove the casing from both ends of the wires.

Step 4 Use a Phillips-head screwdriver to attach a wire to the -48VA power input connection on the fan tray (P1).

Step 5 Attach the wire to the fuse and alarm panel NEG DC connector.

Step 6 Use a Phillips-head screwdriver to attach a wire to an RTN power return connection on the fan tray (P1). See Figure 18 for correct placement.

Step 7 Attach the wire to the fuse and alarm panel POS RTN connector. See Figure 18 for correct placement.

Step 8 Use a Phillips-head screwdriver to attach a wire to connect the -48VA and -48VB power input connections to each other.

Step 9 Use a Phillips-head screwdriver to attach a wire to connect the RTN power return connections to each other.

Step 10 Use a socket driver or a Phillips-head screwdriver to attach the clear cover over the fan tray power connections.

Connect the Alarm Contacts

You must connect the fan tray alarm contacts so that the fan tray alarms can be transmitted to the ViewRunner management software.

Caution If fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is installed. Do not power up the system while you install and connect the system.

To connect the fan tray alarm contacts, complete the following steps:

Step 1 Measure enough wire (24 to 28 AWG solid wire) to connect each of the fan tray alarm contacts on the Cisco 6100 to the fan tray. See Figure 19 for location.

Figure 19 shows how the fan tray two-position header (P2) connects to the fan tray alarm contacts (P14, pins 7 and 8) on the Cisco 6100 backplane.

Figure 19: Wiring the Fan Tray Alarm Contacts

See Figure 20 for a close view of the alarm contact pinouts. For pinout descriptions, see the Cisco 6100 with NI-1 Direct Connect Installation Guide.

Figure 20: Alarm Contact Pinouts—Close-up

Step 2 Use a wire stripper to remove the casing from both ends of the wires.

Step 3 Wire P2 on the backplane of the fan tray to P14 (pin 7) on the backplane of the Cisco 6100 to connect the Fan Alarm+ contact. Use a wire wrapping tool to attach the wire to the contacts.

Step 4 Wire P2 on the backplane of the fan tray to P15 (pin 8) on the backplane of the Cisco 6100 to connect the Fan Alarm- contact. Use a wire wrapping tool to attach the wire to the contacts.

Pull All Modules Away

Complete the following steps to pull the modules away from the chassis backplane connection:

Caution If the modules are installed when you apply power to the system, you could damage the modules and the chassis.

Step 1 Open the chassis front door.

Step 2 Lift up the ejector tab. This action disconnects the module from the backplane.

Step 3 Carefully slide the module forward and away from the backplane connection.

Step 4 Repeat Step 2 through Step 3 for each module in the Cisco 6100 chassis and each POTS module in the Cisco 6120 chassis.

Verify DIP Switches

Verify that all of the DIP switches are set on SW1 and SW2 to the OFF position (Figure 21).

Warning Systems using a Cisco 6100 chassis must connect to the network through a POTS splitter to provide the secondary lightning protection required by NEBS.

Figure 21: xDSL Protection DIP Switches (in OFF position)

Reconnect the Subtended Network Configuration

If you disconnected the subtended network configuration in the "Disconnect the Subtended Network Configuration" section, complete the steps in the following sections to reconnect the subtended network configuration:

Step 1 Attach one end of a coaxial cable (type 734A, type 735A, or equivalent) to the transmit DS3 BNC connector (TX1) for the DS3 subtending I/O card on the subtending host chassis backplane. Figure 22 shows cabling for a subtended network configuration.

Figure 22: Cabling for a Subtended Network Configuration

Step 2 Verify that ferrites are added to the coaxial cables that you use to cable the DS3 subtending I/O card to the system I/O card to reduce the radiation/EMI susceptibility to high frequency noise between 30 and 200 MHz. If the ferrites are not present, use either the ferrites that were shipped with the DS3 network interface module or ferrites that yield an impedance greater than 200 ohms +/- 20 percent at 100 MHz.

If you are using

Thick type 734A coaxial cable or equivalent, run the cable through a ferrite and clamp the ferrite shut, as shown in Figure 23. Attach the ferrite as close as possible to the transmit DS3 BNC connector (TX1) on the DS3 subtending I/O card. Tie wrap the cable directly behind the ferrite.

Figure 23: Thick Coaxial Cable Through Ferrite

Thin type 735A coaxial cable or equivalent, run the cable through the ferrite one time, loop the cable back through the ferrite, and clamp the ferrite shut, as shown in Figure 24. Attach the ferrite as close as possible to the transmit DS3 BNC connector (TX1) on the DS3 subtending I/O card. Tie wrap the cable directly behind the ferrite.

Note The minimum bend radius for thin type 735A coaxial cable or equivalent is one-quarter of an inch. If the minimum bend radius exceeds one-quarter of an inch, the cable might not work properly.

Figure 24: Thin Coaxial Cable Through Ferrite

Step 3 Attach a ferrite as close as possible to the remaining end of the cable (see Figure 23 or Figure 24 for ferrite installation). Tie wrap the cable directly behind the ferrite.

Step 4 Attach the end of the cable used in Step 3 to the receive DS3 BNC connector (RX) for the system I/O card on the subtended node chassis backplane.

Step 5 Attach one end of a coaxial cable to the receive DS3 BNC connector (RX1) for the DS3 subtending I/O card on the subtending host chassis backplane.

Step 6 Attach the ferrite as close as possible to the receive DS3 BNC connector (RX1) on the DS3 subtending I/O card (see Figure 23 or Figure 24 for ferrite installation). Tie wrap the cable directly behind the ferrite.

Step 7 Attach a ferrite as close as possible to the remaining end of the cable (see Figure 23 or Figure 24 for ferrite installation). Tie wrap the cable directly behind the ferrite.

Step 8 Attach the end of the cable used in Step 7 to the transmit DS3 BNC connector (TX) for the system I/O card on the subtended node chassis backplane.

Step 9 Tie wrap the transmit and receive cables coming from the DS3 subtending I/O card where the cables meet after coming from the ferrites and every 1 foot thereafter for a total of 15 feet, as shown in Figure 25.

Figure 25: Ferrite Close to DS3 BNC Connectors on DS3 Subtending I/O Card

Step 10 Tie wrap the transmit and receive cables coming from the system I/O card where the cables meet after coming from the ferrites and every 1 foot thereafter for a total of 15 feet, as shown in Figure 26.

Figure 26: Ferrites Close to DS3 BNC Connectors on System I/O Card

Note If you have one subtending host chassis with two subtended node chassis, the second subtended node chassis connects to the TX2 and RX2 DS3 BNC connectors on the DS3 subtending I/O card.

Step 11 Install the plastic ESD shield over the DS3 subtending I/O card using the following steps:

a. Position the holes in the plastic ESD shield over the existing standoff screws installed on the DS3 subtending I/O card.

b. Use a Phillips-head screwdriver and the backplane screws you removed in the "Disconnect the Subtended Network Configuration" section to attach the plastic ESD shield to the DS3 subtending I/O card (see Figure 27).

Figure 27: Plastic ESD Shield Installation

Step 12 Repeat Steps 1 through 11 for each subtending host chassis to subtended node chassis connection.

Apply Power

To apply power to the Cisco 6100 Series system, complete the following steps:

Step 1 Verify that there are no modules installed in any of the Cisco 6100 chassis or POTS splitters.

Step 2 Apply power to the system with one of the following methods:

Install the fuses in the fuse and alarm panel

Reinsert the fuses in the fuse and alarm panel, if you removed them in the "Remove Power" section.
Turn on the
breakers in the fuse and alarm panel

Caution If the modules are installed when you apply power to the system, you could damage the modules and the chassis.

Step 3 Verify that the power connections from the Cisco 6100 to the fuse and alarm panel are wired as shown in Figure 11 or Figure 14.

Step 4 Verify that the power connections from the fan tray to the fuse and alarm panel are wired as shown in Figure 17 or Figure 18.

Step 5 Check the polarity of the -48 VDC connections to each chassis by attaching a voltmeter with the minus lead on -48RTN and the plus lead on -48V_A. Ensure that the meter reads between -36 VDC and -60 VDC. If your voltmeter shows a positive voltage, the power inputs might be reversed. If the voltmeter shows a negative voltage that is out of the -36 VDC to -60 VDC range, check the power supply for failure or check for a blown fuse in the fuse and alarm panel.

Verify Fan Tray Operation

Verify that the fans are operational by locating the LED on the front of each fan. If the LED is

Green—The fan is operational.
Not green—The fan is not operational and the fan tray is in alarm mode. Refer to the Cisco 6100 Series with NI-1 Alarm Summary Guide for corrective action.

The fans should be operational before you install the modules.

Caution It is important that the Cisco 6100 cooling fans run continuously.

Warning The power supply circuitry for the Cisco DSLAM equipment can constitute an energy hazard. Before you install or replace the equipment, remove all jewelry (including rings, necklaces, and watches). Metal objects can come into contact with exposed power supply wiring or circuitry inside the DSLAM equipment. This could cause the metal objects to heat up and cause serious burns or weld the metal object to the equipment.

Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.

Reseat the Modules

Caution Proper ESD protection is required each time you handle Cisco DSLAM equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage each time they are removed from the chassis.

To reseat all of the modules, complete the following steps. It is important that you accomplish each step completely before moving on to the next step.

Note All modules must be fully seated in the chassis. A push on the faceplate of each module is required for the module to be fully seated.

Step 1 Reseat the xTU-C modules in the Cisco 6100.

a. Lift up on the ejector tab and gently apply pressure to the bottom of the faceplate while pushing the module into the slot.