7-7
Cisco Network Modules Hardware Installation Guide
OL-2485-20
Chapter 7 Connecting ISDN PRI Network Modules
Channelized T1/ISDN PRI with CSU Network Modules
Figure 7-6
2-Port Channelized T1/ISDN PRI Network Module
Connecting CT1/PRI Modules to the Network
To connect a CT1/PRI module to the network, use a DB-15-to-DB-15 T1 serial cable to connect the
CT1/PRI port to a T1 channel service unit (CSU). (See
Figure 7-7
.) These ports are color-coded tan.
Figure 7-7
Connecting a CT1/PRI Module to a T1 CSU
Channelized T1/ISDN PRI with CSU Network Modules
This section provides information about the following network modules for Cisco modular routers:
•
1-port channelized T1/ISDN PRI with CSU network module (NM-1CT1-CSU or
CPANM-1CT1-CSU) (see
Figure 7-8
). This module is also referred to as the
1-port CT1/PRI CSU
network module
.
•
2-port channelized T1/ISDN PRI with CSU network module (NM-2CT1-CSU or
CPANM-2CT1-CSU) (see
Figure 7-9
). This module is also referred to as the
2-port CT1/PRI CSU
network module
.
LOOPBACK
CTRLR 0
EN
cT1
PRI
H7461
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
LOOPBACK
CTRLR 1
EN
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
CT1/PRI-U ports (DB-15)
LOOP
BACK
EN
FE–PRI
1FE-1CT1
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
CTRLR 0
10/100BaseT
COLL
LINK
100Mbps
FDX
H7468
CT1/PRI port (DB-15)
CT1/PRI port (DB-15)
T1 serial
cable
T1 CSU