Cisco 3600 - 24 Port Digital Modem Network Module Guide d'installation Page 88

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1-Port and 2-Port Channelized T1/ISDN PRI with CSU Network Modules
Cisco Network Modules Hardware Installation Guide
8-8
Figure 8-10 2-Port CT1/PRI CSU Network Module LEDs
All network modules have an enable (EN) LED. This LED indicates that the module has
passed its self-tests and is available to the router.
All PRI modules display four additional LEDs for each port. These LEDs are described in
Table 8-2.
Table 8-2 ISDN PRI Network Module LEDs
LED Meaning
REMOTE ALARM Local alarm at remote end of connection
LOCAL ALARM Loss of signal, loss of frame, or unavailability
because of excessive errors
LOOPBACK Controller local loopback
CARRIER DETECT Carrier received on telco link
LOOPBACK
EN
cT1
CSU
H7466
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
RX
OUT
RX
MON
CTRLR 1
CTRLR 0
TX
IN
LOOPBACK
LOCAL
ALARM
REMOTE
ALARM
CARRIER
DETECT
CT1/PRI CSU LEDs
CT1/PRI CSU LEDs
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