NDA-24296 CHAPTER 2
Page 119
Revision 1.0
PH-SW10
Time Division Switch
4. Lamp Indications
Lamp indications for this circuit card are shown in the table below.
L AMP N AME COLOR STATE
TSWACT
Green Remains lit wh ile the TSW block is in ACT state.
Red Remains lit w hile the TSW block is in Make-busy state.
Of f Remains off while the TSW block is ST-BY side.
MUXACT Green Remains lit while MUX block is in ACT state.
PLOACT Green Remains lit while PLO block is in ACT state.
M3SY Green Lights when MUX #3 synchronization has been established.
M2SY Green Lights when MUX #2 synchronization has been established.
M1SY Green Lights when MUX #1 synchronization has been established.
M0SY Green Lights when MUX #0 synchronization has been established.
PMCA Red Lights when the PM/PCM bus clock FH failure has occurred.
CFT Green Light s whe n t h e CFT circuit is valid.
PMJ Red
Lights when the following MJ fault has occurred:
All of th e clock s upp l y r ou tes h ave failed w hen th e sy s tem op er ates as th e cloc k
subordinate office
32.768 MHz output clock failure
8 KHz output FH failure
5 msec × n o utput FH failure
Input Frame Pulse (FP) failure (FP is supplied by the SYNC card)
Both i nternal OSC (±5 pp m deviation) and high-preci sion c lock signals (±0.3 p pm
deviation) have failed when the system operates as the clock source office
PMN Yellow
Lights when the following MN fault has occurred:
One or more (bu t not all) DTI/DCS cl ock suppl y routes ha ve failed
Drifting failure
Internal OSC (±5 ppm) failure
High-precision clock signals (±0.3 ppm) failure