CHAPTER 3 NDA-24296
Page 224
Revision 1.0
PH-CK17-A
Phase Lock Oscillato r
4. Lamp Indications
Lamp indications for this circuit card are shown in the table below:
Note: This lamp i s ef fe ctive when th is card i s mount ed in T SWM0 of the IPX-U/I PX-UMG system. Whe n this c ar d

is mounted in ISWM, this lamp is not used.

LAMP NAME COLOR STATE
OPE Green Remains lit while this circuit card is in active state.
MJ Red
Lights when the following MJ fault has occurred:
•All of the clock supply routes have failed when the system operates as the clock
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•32.768 MHz output clock failure (including CLK card)
•8 KHz output clock failure (including CLK card)
•Input Frame P ulse (FP ) failure (FP is supplied b y th e SYNC card)
•Internal OSC (±5 ppm deviation) have failed when the system operates as the clock
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MN Red
Lights when the following MN fault has occurred:
•One or mo re (but not all) DTI/DCS clock supply routes have failed
•Drifting failure
•Internal OSC (±5 ppm deviation) failure
SYNC Green Remains lit while the syste m is synchron iz ed w ith the network.
ICK Green Lights when the internal oscillator is operating normally.
CKPKG
Note Green Lights when the CLK card in TSW M1 is in normal operation.
ALM0
Note Red Lights when clock failure has occurred in th e CL K card.
ALM1
Note Red Lights when FH failure has occurred in the CLK card.
PALM Red Remains lit when the On-Board Power Supply is abnormal.