Specifications

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PA-8E 10BaseT Ethernet Port Adapter Installation and Configuration
OL-3494-04
Chapter 1 Overview
Identifying Interface Addresses
Cisco 7100 Series Routers Interface Addresses
In Cisco 7120 series router, port adapters are installed in port adapter slot 3. See Figure 1-7. In the Cisco
7140 series router, port adapters are installed in port adapter slot 4. See Figure 1-8.
The interface address is composed of a two-part number in the format
port-adapter-slot-number/interface-port-number. See Table 1-5. For example, if an eight-port PA-8E is
installed on a Cisco 7120 router, the interface addresses would be 3/0 through 3/7 (port adapter slot 3,
and interfaces 0,1, 2, 3, 4, 5, 6, and 7). If an eight-port PA-8E is installed on a Cisco 7140 router, the
interface addresses would be 4/0 through 4/7 (port adapter slot 4, and interfaces 0,1, 2, 3, 4, 5, 6, and 7).
Cisco 7200 Series Routers and Cisco 7200 VXR Routers Interface Addresses
In Cisco 7200 series routers and Cisco 7200 VXR routers, port adapter slots are numbered from the
lower left to the upper right, beginning with slot 1 and continuing through slot 2 for the Cisco 7202,
slot 4 for the Cisco 7204 and Cisco 7204VXR, and slot 6 for the Cisco 7206 and Cisco 7206VXR. Port
adapters can be installed in any available port adapter slot from 1 through 6 (depending on the number
of slots in the router). (Slot 0 is reserved for the I/O controller.) See Figure 1-9.
The interface address is composed of a two-part number in the format
port-adapter-slot-number/interface-port-number. See Table 1-5. For example, if an eight-port PA-8E is
installed in slot 1of a Cisco 7200 series router, the interface addresses would be 1/0 through 1/7 (port
adapter slot 1 and interfaces 0 through 7).
Cisco uBR7200 Series Routers Interface Addresses
In the Cisco uBR7223 router, only one slot accepts port adapters and it is numbered slot 1.
In the Cisco uBR7246 router and Cisco uBR7246VXR router, port adapters can be installed in two port
adapter slots (slot1 and slot 2). Slot 0 is always reserved for the I/O controller—if present. See
Figure 1-10.
The interface address is composed of a two-part number in the format
port-adapter-slot-number/interface-port-number. See Table 1-5. For example, if an eight-port PA-8E is
installed in slot 1of a Cisco uBR7223 series router, the interface addresses would be 1/0 through 1/7. If
an eight-port PA-8E is installed in slot 2 of a Cisco uBR7246 or Cisco uBR7246VXR router, the
interface addresses would be 2/0 through 2/7.
Cisco 7201 Router Interface Addresses
In the Cisco 7201 router, only one slot accepts port adapters and it is numbered as slot 1. See
Figure 1-11.
The interface address is composed of a two-part number in the format
port-adapter-slot-number/interface-port-number. See Table 1-5. For example, if an eight-port PA-8E is
installed in a Cisco 7201 router, the interface addresses would be 1/0 through 1/7.