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Connecting Cisco ISDN PRI Network Modules to the Network
Channelized E1/ISDN PRI Balanced (120-Ohm) Network Modules
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Connecting Cisco ISDN PRI Network Modules to the Network
Figure 9 2-Port Channelized T1/ISDN PRI with CSU Network Module
Connecting CT1/PRI CSU Modules to the Network
To connect a CT1/PRI CSU module to the network, use a straight-through RJ-48C-to-RJ-48C cable to
connect the RJ-48C port to an RJ-48C jack (see Figure 10). These ports are color-coded tan.
Figure 10 Connecting a CT1/PRI CSU Module to an RJ-48C Jack
Channelized E1/ISDN PRI Balanced (120-Ohm) Network
Modules
This section provides information about the following network modules for Cisco modular routers:
• 1-port channelized E1/ISDN PRI balanced (120-ohm) network module (NM-1CE1B or
CPANM-1CE1B) (see Figure 11). This module is also referred to as the 1-port CE1/PRI-B network
module.
• 2-port channelized E1/ISDN PRI balanced (120-ohm) network module (NM-2CE1B or
CPANM-2CE1B) (see Figure 12). This module is also referred to as the 2-port CE1/PRI-B network
module.
LOOPBACK
EN
cT1
CSU
H7464
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
RX
OUT
RX
MON
CTRLR 1
CTRLR 0
TX
IN
LOOPBACK
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
Monitor and
test ports
(Bantam)
CT1/PRI CSU
port (RJ-48)
LOOP
BACK
EN
FE–PRI
1FE-1CT1-CSU
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
10/100BaseT
COLL
LINK
100Mbps
FDX
CTRLR 0
H7469
RJ-48C jack
CT1/PRI CSU
port (RJ-48C)