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Cisco Network Modules Hardware Installation Guide
OL-2485-20
Chapter 7 Connecting ISDN PRI Network Modules
Channelized E1/ISDN PRI Unbalanced (75-Ohm) Network Modules
Figure 7-14 Connecting a 120-ohm CE1/PRI-B Module to an E1 CSU (DB-15-to-Twinax Connectors)
Figure 7-15 Connecting a 120-ohm CE1/PRI-B Module to an E1 CSU (DB-15-to-RJ-45 Connectors)
Channelized E1/ISDN PRI Unbalanced (75-Ohm) Network
Modules
This section provides information about the following network modules for Cisco modular routers:
•
1-port channelized E1/ISDN PRI unbalanced (75-ohm) network module (NM-1CE1U or
CPANM-1CE1U) (see
Figure 7-16
). This module is also referred to as the
1-port CE1/PRI-U
network module
.
•
2-port channelized E1/ISDN PRI unbalanced (75-ohm) network module (NM-2CE1U or
CPANM-2CE1U) (see
Figure 7-17
). This module is also referred to as the
2-port CE1/PRI-U
network module
.
LOOP
BACK
EN
FE-PRI
1FE-1CE1-B/U
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
CTRLR 0
10/100BaseT
COLL
LINK
100Mbps
FDX
H7473
CE1/PRI port (DB-15)
Twinax connectors
E1 CSU
E1 cable for 75-ohm
balanced connections
with twinax connectors
at the network end
LOOP
BACK
EN
FE-PRI
1FE-1CE1-B/U
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
10/100BaseT
COLL
LINK
100Mbps
FDX
H7472
CE1/PRI port (DB-15)
RJ-45 jack
E1 cable for 120-ohm
balanced connections
with an RJ-45 connector
at the network end
CTRLR 0