Cisco 2600 Series Operation Manual page 106

Interface Numbering
Interface Numbering
Individual digital modem ports are not physically distinct, but Cisco IOS software
identifies each modem uniquely through its slot number and a port number.
In Cisco 3600 series routers, slot numbers begin at 0 at the bottom right of the chassis, as
viewed from the rear. In Cisco 3640 routers, the bottom row of slots is numbered 0 and 1
and the top row is numbered 2 and 3, as shown in Figure 10-2.
Figure 10-2 Cisco 3640 Slot Numbers
Slot 3
cT1
PRI
3
CTRLR 0
ETHERNET
4E
ETH 3 ETH 2
ETH 1
3 2 1
0
LINK
ACT
1
Slot 1
Each digital modem module can hold up to five banks of MICA modules, numbered 0 to 4
from left to right (as viewed from the rear of the router). Each MICA module holds six
modems, which are assigned modem numbers 0 to 5.
Each modem in a digital modem module is also assigned a port number in the range 0 to
29. Modems in the left MICA module (as viewed from the rear of the router), bank 0, are
assigned port numbers 0 to 5. Additional MICA modules, if present, are assigned the port
numbers shown in Table 10-1.
10-4 Cisco Network Modules Hardware Installation Guide
DIGITAL MODEMS
MICA
EN
BANK 0
2E
2W W1
ETH 0
STP
EN
ETHERNET 1
Slot 2
2
MICA
MICA MICA
MICA
BANK 1 BANK 2
BANK 3 EN
BANK 4
SERIAL
AUI
EN
ETHERNET 0
INPUT 100-240V AC 50/60HZ 3.0-1.5 AMPS
Slot 0