CRS-300 1:10 Redundancy Switch
MN/CRS300.IOM
Front Panel Operation
Revision 19
6–3
6.1.1.2 Modem Status LED Indicators
This array of front panel LEDs, located below the Unit Status LED Indicators group, keypad, and
VFD, show the operational status for up to 10 Traffic Modems (six LEDs per modem) plus the
Redundant Modem (five LEDs). They function independently as follows:
LED
Condition
Description
UNIT STATUS
Green
Normal operation (no Unit, Tx or Rx Fault)
Red
•
Unit Fault
•
Rx and Tx fault for SLM-5650/5650A
Orange
•
Tx or Rx Fault
•
TMI not installed
TRANSMIT PROMPT
Green
Normal operation (no Tx Fault)
Off
Tx Fault
RECEIVE PROMPT
Green
Normal operation (no Rx Fault)
Off
Rx Fault
DEFERRED
(Traffic modems only,
CDM-600/L, CDM-625/A)
Off
Normal operation (no Deferred Maintenance Alarm)
Orange
Deferred Maintenance Alarm
ONLINE
Green
Normal operation (Modem traffic active to/from User)
Off
No modem traffic active to/from User
BRIDGED
Orange
Traffic modem is bridged or in “Hot Standby” – verifies that
Redundant Modem is configured identically to this modem
Off
Not bridged
Summary of Contents for CRS-300
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Page 24: ...CRS 300 1 10 Redundancy Switch MN CRS300 IOM Preface Revision 19 xxiv Notes ...
Page 48: ...CRS 300 1 10 Redundancy Switch MN CRS300 IOM Introduction Revision 19 1 24 Notes ...
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Page 237: ...CRS 300 1 10 Redundancy Switch MN CRS300 IOM Appendix A Revision 19 A 7 BLANK PAGE ...
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