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Network Timing Modules
E1-Node Timing Module (NTM-E1)
6-4
Xedge 6000 Hardware
032R440-000
Installation & Setup Guide
Issue 17
E1-Node Timing Module (NTM-E1)
Front Panel Indicators
•
RUN
LED Flashing Green indicates that the NTM is starting up and loading
required files.
LED ON Green indicates that the NTM start-up is complete, all required files are
loaded, and the NTM is active in the system.
•
FLT
(Fault) LED ON Red continuously during start-up is normal.
LED ON Red continuously after start-up indicates that the NTM has failed.
•
LOCK
(Locked) LED ON Yellow indicates that the NTM oscillator is locked to
the selected reference timing source.
•
PRI
(Primary) LED ON Yellow indicates that the NTM has been configured as
the primary transmit reference timing source of the node.
•
RCLS
(Receiving LOS Received Clock)
LED ON Red indicates that the NTM is detecting a loss of signal alarm condition.
Front Panel Connector
•
RC-IN
is a DB-15 female connector that accepts BITS signals from an external
clock system.
lists pinout designations.
Figure 6-3
NTM-E1 Front Panel Features
Note
and accompanying paragraphs describe the two user operable jumpers on the NTM-E1.
NTM-E1
L0
RUN
FLT
LDCK
PRI
RCLS
RC IN