NEC Neax 2000 IVS2 Manual page 174

Lamp Indications
LAMP
COLOR
NAME
RUN Green
PCM Red
FRM Red
MFRM Red
RMT Red
MRMT Red
AIS Red
BL Red
2
NEAX2000 IVS ISDN System Manual
ND-70919 (E), Issue 1.0
Flashes at 120 IPM when this card is normally operating
Remains lit when detecting PCM signal loss
Remains lit when detecting Frame Alignment signal loss
Remains lit when detecting Multi-Frame Alignment signal loss on
time slot 16
Remains lit when receiving the alarm from a distant office
because Frame Alignment signal loss has been detected at the
distant office
Remains lit when receiving the alarm from a distant office
because Multi-Frame Alignment signal loss has been detected at
the distant office
Remains lit when indicating that the pattern of consecutive "1" is
being received. The distant office transmits this signal for a loop-
back test distant.
B channel status
ON : More than 10 channels are busy.
OFF : All channels are idle.
Flash (60 IPM) : Only one channel is busy.
Flash (120 IPM) : 2 to 10 channels are busy.
CHAPTER 4 CIRCUIT CARD INFORMATION
FUNCTION
PN-30DTC-A (DTI)
Page 163