Cisco Systems PA-T3 manual Cisco 7100 Series Ports

Identifying Port Adapter Slot and T3 Interface Port Numbers

Figure 8-4 PA-T3 Serial Port Adapter in the Catalyst 5509

You can identify interface ports by physically checking the port-adapter/interface port location by using show commands to display information about a specific interface or all interfaces in the router.

Cisco 7100 Series Ports

In the Cisco 7100 series routers, the slot number is the location in the chassis where the interface resides and the port number is the physical port. Interfaces in the Cisco IOS software are identified by a type, slot number, and port number. For example, serial 3/1 indicates port 1 on the serial port adapter in slot 3.

Slots in the Cisco 7120 series routers are numbered as shown in Figure 8-5. The fixed LAN interface is slot 0, the fixed WAN interface is slot 1, and the modular port adapter interface is slot 3. In the Cisco 7120 series routers, slots 2 and 4 are not used. Slot 5 is the service module.

Figure 8-5 Port Adapter Slot Numbering—Cisco 7120 Series

Slot 5 Slot 3

ACT ACT

5			LNK	LNK
			FE 0 / 0 FE 0 / 1 0	1
I		E3 TX	RX
	EN	RX
		CEL CAR ALM

SLOT 0 SLOT 1

	PWR
	0
	SYS
CONS	AUX RDY
	2

7120 - AE3

18498

	Slot 1	Slot 0
8-6	PA-T3 Serial Port Adapter Installation and Configuration