Installation guide
Overview of Cisco WAN and Voice Interface Cards 1-9
Cisco 2600 Series Interface Numbering
Figure 1-6 Cisco 2600 Series Unit Numbers
Note WAN interface card slots (built into the chassis) are always numbered as slot 0, even
if the interface card is installed in the slot labeled W1.
Figure 1-6 shows the following unit numbers:
• First Ethernet interface, referred to as Ethernet 0/0
• Token Ring interface, referred to as Token Ring 0/0
• Slot W0, serial interface 0, referred to as serial 0/0
• Slot W1, serial interface 1, referred to as serial 0/1
• Slot 1, Ethernet interface 0, referred to as Ethernet 1/0
• Slot 1, Ethernet interface 1, referred to as Ethernet 1/1
• Slot 1, serial interface 0, referred to as serial 1/0
• Slot 1, BRI interface 0, referred to BRI 1/0
Cisco 2612
100-240V– 1A
50/60 Hz 47 W
W0
W1
16552
Ethernet
0/0
Auxiliary
port
Console
port
Serial 0/0
Serial 0/1
2E
2W
W1
ETHERNET 1
ETHERNET 0
EN
AUI
WO
ACT
LNK
ACT
LNK
ACT
SERIAL
BRI
NT1
B1
B2
NT1
SEE MANUAL BEFORE INSTALLATION
AUX
CONSOLE
ETHERNET 0/0
ACT
LINK
ACT
TOKEN RING 0/0
LINK
SERIALCONN
W0
SERIALCONN
Token
Ring 0/0
Serial 1/0
BRI 1/0
Ethernet
1/0
Ethernet
1/1