Removing and Installing Port Adapters

This chapter describes how to remove the PA-POS-OC3 port adapter from supported platforms, how to install a new or replacement port adapter, and how to connect cables.

This chapter contains the following sections:

Installation Overview

Each port adapter circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge (ESD) damage.

Note When a port adapter slot is not in use, a blank port adapter must fill the empty slot to allow the router or switch to conform to electromagnetic interference (EMI) emissions requirements and to allow proper airflow across the port adapters. If you plan to install a new port adapter in a slot that is not in use, you must first remove the blank port adapter.

Handling Port Adapters

Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter components or connector pins. (See Figure 3-1.)

Figure 3-1: Handling a Port Adapter

Online Insertion and Removal

Several platforms support online insertion and removal (OIR) of port adapters; therefore, you do not have to power down routers when removing and replacing a PA-POS-OC3 on Cisco 7200 series routers or Cisco uBR7200 series routers.

Although the VIP2, the VIP4, the Catalyst 6000 family FlexWAN module, and the Catalyst RSM/VIP2 support online insertion and removal, individual port adapters do not. To replace port adapters, you must first remove the VIP2, VIP4, the Catalyst 6000 family FlexWAN module, or Catalyst RSM/VIP2 from the chassis and then install or replace port adapters as required. If a blank port adapter is installed on the VIP2, VIP4, the Catalyst 6000 family FlexWAN module, or Catalyst RSM/VIP2 on which you want to install a new port adapter, you must first remove the VIP2, VIP4, the Catalyst 6000 family FlexWAN module, or Catalyst RSM/VIP2 from the chassis and then remove the blank port adapter.

Caution To prevent system problems, do not remove port adapters from the VIP2, VIP4, the Catalyst 6000 family FlexWAN module, or Catalyst RSM/VIP2 motherboard or attempt to install other port adapters on the motherboard when the system is operating. To install or replace port adapters, first remove the VIP2, VIP4, the Catalyst 6000 family FlexWAN module, or Catalyst RSM/VIP2 from its interface processor slot.

Note As you disengage the port adapter from the router or switch, online insertion and removal (OIR) administratively shuts down all active interfaces in the port adapter.

Note Before you begin installation, read "Preparing for Installation," for a list of parts and tools required for installation.

Warnings and Cautions

Observe the following warnings and cautions when installing or removing port adapters.

Caution Do not slide a port adapter all the way into the slot until you have connected all required cables. Trying to do so disrupts normal operation of the router or switch.

Note If a port adapter lever or other retaining mechanism does not move to the locked position, the port adapter is not completely seated in the midplane. Carefully pull the port adapter halfway out of the slot, reinsert it, and move the port adapter lever or other mechanism to the locked position.

Caution To prevent jamming the carrier between the upper and the lower edges of the port adapter slot, and to ensure that the edge connector at the rear of the port adapter mates with the connection at the rear of the port adapter slot, make certain that the carrier is positioned correctly, as shown in the cutaway in the following illustrations.

Warning When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the card. Some platforms have an ESD connector for attaching the wrist strap. Do not directly touch the midplane or backplane with your hand or any metal tool, or you could shock yourself.

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 port adapter, see the "PA-POS-OC3 Optical Fiber Specifications" section and the "Cables and Connectors" section.)

To connect cables to the PA-POS-OC3, attach either one duplex optical fiber cable or two simplex optical fiber cables between the PA-POS-OC3 interface port on your PA-POS-OC3 and your network. (See Figure 3-2.)

Note Ensure that you observe the proper relationship of receive (RX) cable to RX SC-type receptacle and transmit (TX) cable to TX SC-type receptacle on the PA-POS-OC3.

Figure 3-2: Connecting Simplex or Duplex Optical Fiber Cables to the PA-POS-OC3

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.

Warning Class 1 laser product.

Warning Because invisible radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to radiation and do not stare into open apertures.

Warning Class 1 LED product.

This completes the procedure for replacing a fiber cable on the PA-POS-OC3.

Table of Contents

Removing and Installing Port Adapters