Modem Status Led Indicators - Comtech EF Data CRS-300 Installation And Operation Manual

CRS-300 1:10 Redundancy Switch
Front Panel Operation
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
UNIT STATUS
TRANSMIT PROMPT
RECEIVE PROMPT
DEFERRED
(Traffic modems only,
CDM-600/L, CDM-625/A)
ONLINE
BRIDGED
Condition Description
Green Normal operation (no Unit, Tx or Rx Fault)
• Unit Fault
Red
• Rx and Tx fault for SLM-5650/5650A
• Tx or Rx Fault
Orange
• TMI not installed
Green
Normal operation (no Tx Fault)
Off Tx Fault
Green
Normal operation (no Rx Fault)
Off Rx Fault
Off Normal operation (no Deferred Maintenance Alarm)
Orange Deferred Maintenance Alarm
Green
Normal operation (Modem traffic active to/from User)
Off No modem traffic active to/from User
Traffic modem is bridged or in "Hot Standby" – verifies that
Orange
Redundant Modem is configured identically to this modem
Off Not bridged
6–3
MN/CRS300.IOM
Revision 19