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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.
LAMP NAME COLOR STATE
TSWACT
Green Remains lit while the TSW block is in ACT state.
Red Remains lit while the TSW block is in Make-busy state.
Off 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 Lights when the CFT circuit is valid.
PMJ Red
Lights when the following MJ fault has occurred:
• All of the clock supply routes have failed when the system operates as the clock
subordinate office
• 32.768 MHz output clock failure
• 8 KHz output FH failure
• 5 msec × “n” output FH failure
• Input Frame Pulse (FP) failure (FP is supplied by the SYNC card)
• Both internal OSC (±5 ppm deviation) and high-precision clock signals (±0.3 ppm
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 (but not all) DTI/DCS clock supply routes have failed
• Drifting failure
• Internal OSC (±5 ppm) failure
• High-precision clock signals (±0.3 ppm) failure