NEC 2400 ipx User Manual Page 493

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NDA-24296 CHAPTER 3
Page 467
Revision 1.0
PA-24CCTA
Common Channel Trunk
4. Lamp Indications
The contents of lamp indications on this circuit card are shown in Table 3-9.
Table 3-9 PA-24CCTA (24CCT) Lamp Indication Reference
LAMP NAME COLOR STATE
OPE Green Remains lit while this circuit card is in normal operation.
N-OPE Red Remains lit while this circuit card is in make-busy state.
PCM Red Lights when an input signal is down (PCM LOSS).
FRM Red Lights when a frame alignment loss is detected.
BER Red
Lights when frequent bit errors occur in the case of 12-multi frame and when a CRC error
occurs frequently in the case of 24-multiframe.
RMT Red Lights on receipt of remote alarm indication.
AIS Yellow Lights on receipt of Alarm Information Signal (AIS).
D-OPE Green Remains lit while Common Channel Handler (CCH) block is active.
LYR Green Remains lit while CCIS signal link is set up.
LB Green Remains lit while the CCIS signal is being looped back.
BL00
BL23
Green Lights when the corresponding circuit is busy.
Flash
Flashes while DP signals are being sent out or received (Flashes to dial pulses) or
corresponding circuit is in make-busy state (60IPM)
OFF Remains off when the corresponding circuit is idle.
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