Cisco 1605-R How To Use Manual page 16

Cisco 2600 Series Routers
Figure 1-5
Network
module
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.
1-8 Cisco WAN Interface Cards Hardware Installation Guide
Cisco 2600 Series Rear View
SERIAL 1
SERIAL 0
CONN
CONN
SEE MANUAL BEFORE INSTALLATION
W1
LINK TOKEN RING 1
ACT
WAN interface
card slot W1
slot
Cisco 2612
SERIAL 1 100-240V – 1A
50/60 Hz 47 W
WIC SERIAL 0
2A/S WIC
CONN
CONN
2T
SEE MANUAL BEFORE INSTALLATION
W0
LINK ETHERNET 0 ACT
CONSOLE
AUX
WAN interface
card slot W0