Removing and Installing Port Adapters
This chapter describes how to remove the PA-A1 ATM port adapter from supported platforms and also how to install a new or replacement port adapter. This chapter contains the following sections:
•Handling Port Adapters
•Online Insertion and Removal
•Warnings and Cautions
•Port Adapter Removal and Installation
Each port adapter circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge (ESD) damage. The Cisco 7100 series routers, Cisco 7200 series routers, and Cisco uBR7200 series routers support online insertion and removal (OIR) of port adapters, however the Catalyst RSM/VIP2 and the VIP2, VIP4 do not. Removal of the VIP2, VIP4, or Catalyst RSM/VIP2 is required before installing the new port adapter. This section discusses the removal and installation of port adapters from the Catalyst RSM/VIP2, Cisco 7100 series routers, Cisco 7200 series routers, uBR7200 series routers, VIP2 and VIP4.
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.
When powering off the router, wait a minimum of 30 seconds before powering it on again.
Handling Port Adapters
Always handle the port adapter by the carrier edges and handle; never touch the port adapter components or connector pins. (See
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-A1 ATM on Cisco 7100 series routers, Cisco 7200 series routers, or Cisco uBR7200 series routers.
Although the VIP2, VIP4, 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, 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, or Catalyst RSM/VIP2 on which you want to install a new port adapter, you must first remove the VIP2, VIP4, or Catalyst RSM/VIP2 from the chassis and then remove the blank port adapter.
To prevent system problems, do not remove port adapters from the VIP2, VIP4, 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, or Catalyst RSM/VIP2 from its interface processor slot.
It is wise to gracefully shut down the system before removing a port adapter that has active traffic moving through it. Removing a port adapter while traffic is flowing through the ports can cause system disruption. Once the port adapter is inserted, the ports can be brought back up.
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.
OIR allows you to install and replace port adapters and service adapters while the router is operating; you do not need to notify the software or shut down the system power, although you should not run traffic through the port adapter you are removing while it is being removed. OIR is a method that is seamless to end users on the network, maintains all routing information, and preserves sessions.
The following is a functional description of OIR for background information only; for specific procedures for installing and replacing a PA-A1 in a supported platform, refer to the "Port Adapter Removal and Installation" section.
Each PA-A1 has a bus connector that connects it to the router. The connector has a set of tiered pins in three lengths that send specific signals to the system as they make contact with the port adapter. The system assesses the signals it receives and the order in which it receives them to determine if a port adapter is being removed from or introduced to the system. From these signals, the system determines whether to reinitialize a new interface or to shut down a disconnected interface.
Specifically, when you insert a port adapter, the longest pins make contact with the port adapter first, and the shortest pins make contact last. The system recognizes the signals and the sequence in which it receives them.
When you remove or insert a port adapter, the pins send signals to notify the system of changes. The router then perfoms the following procedure:
1. Rapidly scans the system for configuration changes.
2. Initializes newly inserted port adapters or administratively shuts down any vacant interfaces.
3. Brings all previously configured interfaces on the port adapter back to their previously installed state. Any newly inserted interface is put in the administratively shutdown state, as if it was present (but not configured) at boot time. If a similar port adapter type is reinserted into a slot, its ports are configured and brought online up to the port count of the originally installed port adapter of that type.
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.
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.
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 port adapter circuit 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.
Port Adapter Removal and Installation
In this section, the illustrations that follow give step-by-step instructions on how to remove and install port adapters. This section contains the following illustrations:
•Catalyst RSM/VIP2—Removing and Installing a Port Adapter
•Cisco 7100 Series—Removing and Installing a Port Adapter
•Cisco 7200 Series—Removing and Installing a Port Adapter
•Cisco uBR7200 Series—Removing a Port Adapter
•Cisco uBR7200 Series—Installing a Port Adapter
•VIP2 and VIP4 —Removing and Installing a Port Adapter
Catalyst RSM/VIP2—Removing and Installing a Port Adapter
Cisco 7100 Series—Removing and Installing a Port Adapter
Cisco 7200 Series—Removing and Installing a Port Adapter
Cisco uBR7200 Series—Removing a Port Adapter
Cisco uBR7200 Series—Installing a Port Adapter
VIP2 and VIP4 —Removing and Installing a Port Adapter