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This chapter describes how to remove the PA-4E1G port adapter from supported platforms and also how to install a new or replacement port adapter. This chapter contains the following sections:
Each port adapter circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge (ESD) damage.
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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. |
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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.) |
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-4E1G on, Cisco 7100 series routers, Cisco 7200 series routers, or Cisco uBR7200 series routers.
Although the VIP2 and supports online insertion and removal, individual port adapters do not. To replace port adapters, you must first remove the VIP2 from the chassis and then install or replace port adapters as required. If a blank port adapter is installed on the VIP2 on which you want to install a new port adapter, you must first remove the VIP2 from the chassis and then remove the blank port adapter.
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Caution To prevent system problems, do not remove port adapters from the VIP 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 VIP motherboard from its interface processor slot. |
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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. |
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Note Before you begin installation, read "Preparing for Installation," for a list of parts and tools required for installation. |
Observe the following warnings and cautions when installing or removing port adapters.
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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. |
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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. |
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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. |
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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. |
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:
To continue your PA-4E1G installation, you must install the port adapter cables. The instructions that follow apply to all supported platforms.
Use the following procedure to connect cables to the PA-4E1G in unbalanced mode:
Step 2 Attach the network end of the 75-ohm, unbalanced coaxial cable to your external E1-G.703/G.704 equipment.
Step 3 Repeat Steps 1 and 2 for each additional interface you plan to use on the port adapter.
Use the following procedure to connect cables to the PA-4E1G in balanced mode:
Step 2 Attach the network end of the 120-ohm, balanced cable to your external E1-G.703/G.704 equipment.
Step 3 Repeat Steps 1 and 2 for each additional interface you plan to use on the port adapter.
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Note Port adapters have a handle attached, but this handle is not shown to allow a full view of detail on each port adapter's faceplate. When attaching the cable receptacle on the PA-4E1G, use the cable-management bracket that shipped with your router for extra strain relief. |
This completes the procedure for attaching a balanced or unbalanced cable to the PA-4E1G. Proceed to "Configuring the PA-4E1G."
Posted: Tue Feb 15 12:27:26 PST 2000
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