Table Of Contents
Removing and Installing Line Cards
Installation Overview
Handling Line Cards
Online Insertion and Removal
Warnings and Cautions
Line Card Removal and Installation
Cisco 7304—Removing and Installing a Line Card
Connecting OC12 ATM Line Card Interface Cables
Removing and Installing SFP Modules
Removing and Installing Line Cards
This chapter describes how to remove the OC3 ATM line card from its supported platform, how to install a new or replacement line card, and how to connect cables.
This chapter contains the following sections:
•
Installation Overview
• Handling Line Cards
• Online Insertion and Removal
• Warnings and Cautions
• Line Card Removal and Installation
• Connecting OC12 ATM Line Card Interface Cables
• Removing and Installing SFP Modules
Installation Overview
Each line card circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge (ESD) damage.
Note When a slot is not in use, a blank line card must fill the empty slot to allow the router to conform to electromagnetic interference (EMI) emissions requirements and to allow proper airflow across the line cards. If you plan to install a new line card in a slot that is not in use, you must first remove the blank line card.
Handling Line Cards
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; therefore, you do not have to power down the router when removing and replacing an OC3 ATM line card on a Cisco 7304 router. The Cisco 7304 router also supports CLI-controlled OIR (see the "CLI-Controlled OIR" section on page 4-28), 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.
Warnings and Cautions
Observe the following warnings and cautions when installing or removing line cards.
Tip 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.
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 the cutaway in the following illustration. If the line card does not slide freely into the backplane, loosen the locking thumbscrews on the neighboring line cards.
Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly touch the midplane with your hand or any metal tool, or you could shock yourself. Statement 181
Line Card Removal and Installation
Note Before you begin installation, read Chapter 2, "Preparing for Installation," for a list of parts and tools required for installation.
In this section, step-by-step instructions on how to remove and install the OC12 ATM line card from the Ciscoo 7304 router.
Cisco 7304—Removing and Installing a Line Card
Proceed to the "Connecting OC12 ATM Line Card Interface Cables" section.
Connecting OC12 ATM Line Card Interface Cables
To continue your OC3 ATM line card installation, you must connect the interface cables to the SFP modules.
Note Optical fiber cables are not available from Cisco Systems; they are available from outside commercial cable vendors. (For more information on the cables you should use with this line card, see the "Fiber-Optic Transmission Specifications" section on page 1-5 and the "Cables and Connectors" section on page 1-11.)
To connect cables to the OC3 ATM line card, attach the duplex optical fiber cables between the OC12 interface SFP module and your network.
Warning Because invisible laser radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to laser radiation and do not stare into open apertures. Statement 1051
Warning Class 1 laser product. Statement 1008
Removing and Installing SFP Modules
