Table Of Contents
Installing the Cisco uMG9820
Installing the Cisco uMG9820 in a Rack
Rack-Mounting the Chassis
Connecting to QAM and RF Monitor Ports
Connecting to the Network
Connecting the Gigabit Ethernet Ports
Connecting the Ethernet Ports to NMS and CAS Services
Connecting to the Console Port
Connecting the Power
Installing the Cisco uMG9820
This chapter explains how to mount and physically install a Cisco uMG9820 QAM Gateway. Before performing any of the procedures in this chapter, read Chapter 2 of the Cisco uMG9620 QAM Gateway Installation and Configuration Guide to ensure that you understand all the tools required and safety guidelines. This chapter includes the following major sections:
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Installing the Cisco uMG9820 in a Rack
• Connecting to QAM and RF Monitor Ports
• Connecting to the Network
• Connecting to the Console Port
• Connecting the Power
Warning Read the installation instructions before you connect the system to its power source. Statement 1004
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
Installing the Cisco uMG9820 in a Rack
The Cisco uMG9820 can be installed in a standard 19-inch mounting rack by securing the front mounting brackets to the equipment rack. The front rack-mount brackets will support the weight of a fully loaded chassis—17.9 lbs (8.1 kg).
If the equipment rack has four posts and has a rack depth of 23 to 25 inches, you can use the rear rack-mount kit that shipped with your Cisco uMG9820 to secure the rear of the chassis to the rack posts.
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. Statement 1006
Rack-Mounting the Chassis
This section describes how to rack-mount the chassis in a standard 19-inch equipment rack. Rear mounting, with its associated hardware, is optional.
Rack-Mount Items
Use the following items in the Cisco uMG9820 accessory kit to rack-mount the chassis:
•One left-rear (with respect to the front) rack extension (labeled Part #1) (optional)
•One right-rear rack extension (labeled Part #2) (optional)
•Two rear rack-mount brackets (labeled Part #3) (optional)
•Four 6-32 x 1/4-inch pan-head Phillips screws (for use with optional rear brackets)
•Four 6-32 x 1/4-inch flat-head Phillips screws (for use with optional rear brackets)
•Eight 10-32 x 5/8-inch oval-head Phillips screws (four for front brackets, four for optional rear brackets)
•Eight black-plastic cup washers (four for front brackets, four for optional rear brackets)
Caution To prevent stripping the screw heads, use a number 2 Phillips screwdriver.
Installing the Chassis in the Rack without Rear Rack Mounts
This procedure is recommended if your installation does not require the additional support provided by the rear rack mounts.
Caution You need two people to install the chassis in the rack—one person to hold the chassis and one person to secure it to the rack.
To install the chassis without using rear rack mounts:
Step 1 Use two people to install the chassis in the rack: one to hold the chassis, one to secure the front of the chassis to the front rack posts.
Step 2 Using the 10-32 x 5/8-inch. oval-head Phillips screws and black-plastic cup washers, attach the chassis to the front rack posts as shown in Figure 3-1.
Caution To minimize stress on the front rack-mount brackets, install the bottom screws first. Also, to ensure both proper support and grounding, be sure to use two screws on each side.
Figure 3-1 Attaching the Front of the Chassis to the Rack
Attaching the Rear Rack Extensions to the Chassis (Optional)
If the rear of the chassis is to be secured to the rack to provide additional support, then you must attach the left- and right-rear rack extensions (labeled Part #1 and Part #2, respectively) to the chassis before mounting the Cisco uMG9820 in the rack.
To attach rear rack extensions to the chassis:
Step 1 Mount the chassis by means of its built-in front rack-mount brackets, as in Installing the Chassis in the Rack without Rear Rack Mounts.
Caution Do not attach the rear rack-mount brackets until the chassis has been mounted in the rack and the front rack-mount brackets have been secured to the rack posts. Otherwise, the rear rack-mount brackets will prevent the chassis from sliding into the rack.
Step 2 Attach the rear rack extensions to the left and right rear sides of the chassis, as follows:
a. Refer to Figure 3-2. Using the 6-32 x 1/4-inch flat-head Phillips screws, attach the right rear rack-mounting bracket to the right side of the chassis, as seen from the front.
Tip The chassis-side mounting holes on each extension are closer to the top of the bracket, with the large end of the countersunk holes on the outside.
Figure 3-2 Attaching the Rear Rack Extension and Rear Rack-Mounting Brackets: Right-Side View
b. Similarly, attach the left rear rack-mounting bracket to the left side of the chassis.
Step 3 Refer to Figure 3-3. Using the 6-32 x 1/4-inch pan-head Phillips screws, attach the right-rear rack-mount bracket to the right-rear rack post, inserting the screws through the washer and into the threaded holes in the rear rack extension.
Tip Do not tighten the screws completely until you have adjusted the rear rack-mount brackets to fit.
Figure 3-3 Attaching a Rear Rack-Mount Bracket to a Rear Rack Extension: Right-Side View
Step 4 Similarly, attach the left-rear rack-mount bracket to the left side of the chassis.
Step 5 Refer to Figure 3-4. Using the 10-32 x 5/8-inch oval-head Phillips screws, attach the right-rear rack-mount bracket to the right-rear rack post as follows:
a. Slide the rack-mount bracket so that it fits against the rear rack post.
b. Insert the narrow ends of the black-plastic cup washers in the slot in the rear rack-mount bracket.
c. Insert the screws through the washers and into the threaded holes in the rear rack post.
Caution Be sure to use two screws on each side.
Figure 3-4 Attaching a Rear Rack-Mount Assembly to a Rear Rack Post: Right Side View
Step 6 Similarly, attach the left-rear rack-mount bracket to the left-rear rack post.
Step 7 With both rear rack-mount assemblies secured to the rear rack posts, tighten the screws holding the rear rack extensions to the rack-mount brackets.
Connecting to QAM and RF Monitor Ports
This section describes how to connect cables to the QAM output and RF monitor ports with F-connectors and MCX connectors, respectively.
Caution Do not simply hand-tighten the F-connectors. If they are too loose, RF leakage can result. If they are too tight, the port electronics can be damaged. Always use a torque wrench to set the tightness to 15 inch-lbs.
Note The use of the RF monitor port is optional. The RF output can be monitored continuously, or on an as-needed basis. However, you can monitor only one QAM port at a time.
To connect cables to QAM and RF monitor ports:
Step 1 See Figure 3-5.
Figure 3-5 Connecting Cables to QAM and RF Monitor Ports
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QAM output port
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2
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RF monitor port
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Step 2 Attach a cable with an F-connector to each QAM port (Item 1 in the figure). Attach the other end as appropriate for HFC distribution.
Step 3 (Optional) Attach a cable with an MCX connector to the RF monitor port that is immediately adjacent to the QAM output to be monitored. (Item 2 in the figure.) Attach the other end to appropriate test equipment.
Connecting to the Network
This section describes how to connect the Cisco uMG9820 to your network. The cables required to connect the gateway to a network are not provided. For ordering information, contact customer service (see Obtaining Additional Publications and Information, page xv).
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001
Connecting the Gigabit Ethernet Ports
The Gigabit Ethernet ports support IEEE 802.3z specifications for 1000-Mbps transmission over fiber-optic cables. These ports also support autosensing and autonegotiation of the proper transmission mode (half duplex or full duplex) with an attached device. Cables connect to the GE ports by means of SFP (small form-factor pluggable) modules.
Installing SFP Modules
Each GE port requires an SFP module. See Figure 3-6. The following Warnings apply to fiber-optic SFPs.
Warning Class 1 laser product. Statement 1008
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051
Figure 3-6 Fiber-Optic SFP Module
Caution Use only SFP modules supplied by Cisco, which have Class 1 Laser Product and FDA 21 CFR certifications. Class 1 Laser Product modules are safe for the eyes when operated within the limits of the device specification. For more information, see the specification of the SFP module that you are installing.
Caution The use of controls or adjustments, or performance of procedures, other than those specified herein may result in hazardous radiation exposure.
To insert an SFP module into the SFP module slot:
Step 1 Use an ESD-preventive wrist strap, grounding the strap to bare metal on the rack or chassis.
Caution You must be properly grounded before handling this ESD-sensitive product.
Step 2 Find the transmit (TX) and receive (RX) markings that identify the top side of the SFP module.
Note On some modules, the TX and RX markings might be replaced by arrowheads. These point out of the module connector to signify the transmit direction, and into the connector to indicate the receive direction.
Step 3 See Figure 3-7. Aligning the back (receive) end of the module in front of the processor card port labeled "GIG1," insert the module into the port until you feel the connector snap into place.
Figure 3-7 Connecting the Gigabit Ethernet Port
Step 4 Remove the dust plugs from the optical ports, and store them for later use.
Caution Do not remove the dust plugs from a module's fiber-optic port, or the rubber caps from a fiber-optic cable, until you are ready to connect the cable. The plugs and caps provide protection from contamination and ambient light.
Step 5 Insert the cable into the front (transmit) end of the SFP module.
Step 6 Where a second GE port is used for redundancy, repeat Step 1 through Step 5 to insert another SFP module in the port labeled "GIG2."
Note The port labeled "GIG2" is for redundancy. GIG1 and GIG2 share a common IP and MAC address to support failover.
Removing SFP Modules
To remove an SFP module:
Step 1 Remove cable from the front end of the SFP module.
Step 2 To release the lock, pull the SFP module release lever down until it stops.
Step 3 Slide the module out of the receptacle.
Connecting the Ethernet Ports to NMS and CAS Services
To support out-of-band management (Network Management System, or NMS) and conditional access system (CAS) traffic, the 10BASE-T/100BASE-TX Ethernet ports support IEEE 802.3 and IEEE 802.3u specifications for 10 Mbps and 100 Mbps transmission over unshielded twisted-pair (UTP) cables. These ports also support autosensing and autonegotiation of the proper transmission mode (half duplex or full duplex) with an attached device.
Note CAS is not supported in initial releases of the Cisco uMG9820.
Each Ethernet port has an RJ-45 connector that supports standard straight-through and crossover Category 5 UTP cable:
•Use Category 5 UTP straight-through cables when connecting to a hub.
•Use Category 5 UTP crossover cables when connecting to a PC or other Ethernet device.
Note The Cisco uMG9820 does not come with Category 5 UTP RJ-45 cables. These cables are available commercially.
To connect the Fast Ethernet ports to an Ethernet network in support of NMS and CAS services:
Step 1 Refer to Figure 3-8.
Step 2 Attach the appropriate type of cable directly from the NMS port to the local area network from which computer access to the web-based control interface is done. See Item 1 in Figure 3-8.
Step 3 Attach the appropriate type of cable directly from the CAS port to the local area network from which the conditional access is done. See Item 2 in Figure 3-8.
Figure 3-8 Connecting the NMS and CAS Ports to the Network
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NMS cable to FE port 1
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2
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CAS cable to FE port 2
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Connecting to the Console Port
The Cisco uMG9820 is shipped with a console cable kit, which contains the cable and adapters you need to connect a console (an ASCII terminal or PC running terminal emulation software) to the Cisco uMG9820. The console cable kit includes the following:
•RJ-45 to RJ-45 rollover cable
•RJ-45 to DB-9 female DTE adapter (labeled TERMINAL)
Use the console terminal for local administrative access to the Cisco uMG9820. You can connect a terminal to the console port only.
To connect the console port to a terminal (an ASCII terminal or a PC running terminal emulation software):
Step 1 Connect one end of the RJ-45 rollover cable to the RJ-45-to-DB-9 adapter (labeled TERMINAL).
Step 2 Connect the other end of the rollover cable directly to the console port on the processor card.
Step 3 Attach the DB-9 connector to the appropriate serial connector on the PC or terminal.
Note The RS-232 port parameters are fixed and cannot be edited. The parameters are as follows:
9600 bits per second, 8 data bits, no parity, 1 stop bit
Connecting the Power
The Cisco uMG9820 features two AC power supplies that provide power factor correction and regulated outputs.
Warning Read the installation instructions before connecting the system to the power source. Statement 1004
Warning Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018
Caution The Cisco uMG9820 does not have a power switch. The AC power cord is used to connect and disconnect power. Ensure that the socket-outlet is located or installed near the equipment and is easily accessible.
Before you start the Cisco uMG9820, ensure the following:
•All network interface cables are connected.
•The console terminal is connected and powered on.
To connect the AC power to the Cisco uMG9820, use the following procedure:
Step 1 Connect one end of the power cord to the AC power receptacle on the back to the chassis.
Step 2 Connect the other end of the AC power cord to the power outlet.
Caution The Cisco uMG9820 is powered immediately and begins to boot up as soon as the power connection is completed.
