Installation guide

Cisco 2600 Series Routers
Cisco WAN Interface Cards Hardware Installation Guide
1-8
Figure 1-5 Cisco 2600 Series Rear View
Cisco 2600 Series Interface Numbering
Each individual network interface on a Cisco 2600 series router is identified by a slot
number and a unit number.
Slot and Unit Numbering
The Cisco 2600 series router chassis contains one slot in which you can install a network
module. This is always slot 1.
Unit numbers identify the interfaces on the modules and WAN interface cards installed in
the router. Unit numbers begin at 0 for each interface type, and continue from right to left
and (if necessary) from bottom to top. Modules and WAN interface cards are identified by
interface type, slot number, followed by a forward slash (/), and then the unit number; for
example, Ethernet 0/0.
Figure 1-6 shows a router with a 2E 2-slot module in slot 1. One serial and one ISDN BRI
WAN interface card are installed in the module.
SEE MANUAL BEFORE INSTALLATION
SERIAL 1
SERIAL 0
CONN CONN
WIC
2A/S
SEE MANUAL BEFORE INSTALLATION
SERIAL 1
SERIAL 0
CONN CONN
WIC
2T
Cisco 2612
100-240V– 1A
50/60 Hz 47 W
W0
AUX
CONSOLE
ETHERNET 0
ACT
LINKACTTOKEN RING 1LINK
W1
Network
module
slot
10344
WAN interface
card slot W1
WAN interface
card slot W0