Table Of Contents
Removing and Installing the OC-12 ATM Line Card
Handling Line Cards
Online Insertion and Removal
Warnings and Cautions
Line Card Removal and Installation
Removing the Line Card
Installing the Line Card
SFP Module Removal and Installation
Handling the SFP Module
Removing the SFP Module
Installing the SFP Module
Cabling the SFP Module
Removing and Installing the OC-12 ATM Line Card
This chapter describes how to remove the OC-12 ATM line card from its supported platform, how to install a new or replacement line card, and how to install SFP modules.
This chapter contains the following sections:
•
Handling Line Cards
• Online Insertion and Removal
• Warnings and Cautions
• Line Card Removal and Installation
• SFP Module Removal and Installation
Handling Line Cards
Each line card circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge (ESD) damage.
Caution Always handle the line card by the carrier edges and handle; never touch the line card components or connector pins. (See
Figure 3-1.)
Figure 3-1 Handling a Line Card
Online Insertion and Removal
The Cisco 7304 router supports online insertion and removal (OIR) of line cards; you do not have to power down the router when removing and replacing an OC-12 ATM on a Cisco 7304 router. The Cisco 7304 router also supports CLI-controlled OIR (see the "CLI-Controlled OIR" section on page 4-32), which allows for the completion of data traffic before the active interfaces are shut down.
Note As you disengage the line card from the router, online insertion and removal (OIR) administratively shuts down all active interfaces in the line card.
Note Before you begin installation, read the "Preparing for Installation" section on page 2-1 for a list of parts and tools required for installation.
Warnings and Cautions
Observe the following warnings and cautions when installing or removing line cards.
Warning Class 1 laser product. Statement 1008
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
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. Statement 1029
Warning Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing. Statement 1034
Caution To prevent jamming the carrier between the upper and the lower edges of the slot, and to ensure that the connector at the rear of the line card mates with the connection at the rear of the slot, make certain that the carrier is positioned correctly, as shown in cutaway D in
Figure 3-2. If the line card does not slide freely into the backplane, loosen the locking thumbscrews on the neighboring line cards
Caution When removing or installing the OC-12 ATM line card, wear a grounding wrist strap to avoid ESD damage to the card. Some routers have an ESD connector for attaching the wrist strap.
Line Card Removal and Installation
This section describes how to remove and install the OC-12 ATM in the Cisco 7304 router.
Removing the Line Card
To remove the line card, refer to Figure 3-2 and do the following:
Step 1 Make sure you are properly grounded.
Step 2 Remove any cables from the card.
Step 3 Loosen the locking thumbscrews ( see A in Figure 3-2) on both sides of the line card. Use a Phillips head screwdriver if necessary.
Step 4 Open the line card levers (see B in Figure 3-2) completely (at a 45-degree angle).
Step 5 Carefully slide the card out of the slot (see C in Figure 3-2) and place it on an antistatic surface.
Installing the Line Card
To install the line card, refer to Figure 3-2 and do the following:
Step 1 Make sure you are properly grounded.
Step 2 Carefully align the line card with the slot guides on the chassis (see D in Figure 3-2).
Note The line card levers must be positioned at a 45-degree angle before the line card makes contact with the backplane (see B in Figure 3-2).
Step 3 Make sure that the line card levers are open (see B in Figure 3-2) and then slide the card into the chassis until it makes contact with the backplane.
Step 4 Close the line card levers.
Note If a line card lever or other retaining mechanism does not move to the locked position, the line card is not completely seated in the backplane. Carefully pull the line card halfway out of the slot, reinsert it, and move the line card lever to the locked position.
Step 5 Tighten the locking thumbscrews (A) on both sides of the line card.
Note When a chassis is fully populated, seating a new line card may be difficult. To avoid damage when seating a new line card, loosen the locking thumbscrews of the neighboring cards. Do not use excessive force to seat the line card.
Figure 3-2 Line Card Removal and Installation
SFP Module Removal and Installation
The OC-12 ATM line card only accepts the SFP modules listed as supported in this document. An SFP module check is run each time an SFP module is inserted into the OC-12 ATM line card and only SFP modules that pass this check are usable by the OC-12 ATM line card.
Note The SFP modules used with the OC-12 ATM line card have LC-type connectors
The SFP modules support online insertion and removal (OIR). However, if the line card is already installed in the router and the system is operational, we recommend that you administratively shut down the SFP module port before installing a new SFP module.
Available Cisco SFP modules include the following:
•SFP-OC12-SR—Single-mode short range
•SFP-OC12-IR1—Single-mode intermediate range
•SFP-OC12-LR1—Singlemode long range (LR-1)
•SFP-OC12-LR2—Single-mode long range (LR-2)
•SFP-OC12-MM—Multimode
Handling the SFP Module
Before handling the SFP module, observe the following guidelines:
•SFP modules are static-sensitive. To prevent electrostatic discharge (ESD) damage, follow your normal board- and component-handling procedures.
•SFP modules are dust-sensitive. When storing an SFP module or when a fiber-optics cable is not plugged into the connector, always keep plugs in the SFP optical bores.
Note The most common source of contaminants in the optical bores is debris picked up on the ferrules of the optical connectors. Use a swab or lint-free absorbent wipes to clean the ferrules of the optical connector.
Removing the SFP Module
The following procedure describes removing the SFP module from a vertically or horizontally oriented card slot.
Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040
Caution You can remove and install SFP modules with power on to the system; however, we strongly recommend that you do not remove or install an SFP module with optical fiber cables attached.
To remove the SFP module, perform the following steps:
Step 1 Make sure you are properly grounded.
Step 2 Disconnect the network fiber cable from the SFP module connector.
Step 3 Remove the SFP module from the slot.
a. Using your thumb and forefinger, grip the colored latching band on the front of the SFP module.
b. Gently push the latching band back toward the SFP slot. You may hear a click or feel the SFP module disengage from the holding latch.
Note Not all SFP modules have the same kind of latching mechanism.
c. While still holding the latching band, pull the SFP module towards you and out of the slot.
Step 4 Set the SFP module aside on an antistatic surface.
Installing the SFP Module
Use the following procedure to install the SFP module:
Step 1 Make sure you are properly grounded.
Step 2 Verify that you have the correct SFP module for your installation. Check the part number and distance information on the SFP module label.
Step 3 Align the SFP module with the slot so that the label is facing away from the handle.
Step 4 Holding the SFP module at the latching band (with your thumb and forefinger), insert the SFP module into the slot on the line card.
Step 5 Push the SFP module back into the slot until the latch engages. When fully inserted, only the band around the front of the SFP module is visible.
Figure 3-3 Inserting an SFP Module
Cabling the SFP Module
To continue your OC-12 ATM line card installation, you must connect the interface cables.
Step 1 Remove the plug from the SFP module bore plug and save the plug for future use.
Step 2 Attach the network interface fiber-optics cable to the SFP module and then attach the optical fiber cable your network.
Note Optical fiber cables are not available from Cisco Systems; they are available from outside commercial cable vendors.
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
