Cisco 2600 Series Operation Manual page 94

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1-Port and 2-Port Channelized E1/ISDN PRI Unbalanced (75-ohm) Network Modules
Table 8-4
LED
REMOTE ALARM
LOCAL ALARM
LOOPBACK
CARRIER DETECT
1-Port and 2-Port 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—(Cisco
product number NM-1CE1U or CPANM-1CE1U). (See Figure 8-18.) 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—(Cisco
product number NM-2CE1U or CPANM-2CE1U). (See Figure 8-19.) This module is
also referred to as the 2-port CE1/PRI-U network module.
Figure 8-18
cE1-U
PRI
8-14
Cisco Network Modules Hardware Installation Guide
ISDN PRI Network Module LEDs
Meaning
Local alarm at remote end of connection
Loss of signal, loss of frame, or unavailability
because of excessive errors
Controller local loopback
Carrier received on telco link
1-Port Channelized E1/ISDN PRI Network Module (Unbalanced)
CTRLR 0
CE1/PRI-U port
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