NEC 2000 IVS PN-24DTADTI, Locations of Lamps, Switches, and Connectors, Lamp Indications, Color

PN-24DTA (DTI)

PN-24DTA (DTI)

1.Locations of Lamps, Switches, and Connectors

JPS

JPR1

JPR0

SENS

RUN

MB

SW

CRC

PCM

FRM

RMT

AIS

BL

PN-24DTA (DTI) Card

2.Lamp Indications

			Lamp Indications
LAMP NAME	COLOR		FUNCTION
RUN	Green	Flashes at 120 IPM while this card is operating normally.
CRC	Red	Lights when detecting Cyclic Redundancy Checking (CRC) errors.
PCM	Red	Lights when detecting PCM signal loss.
FRM	Red	Lights when detecting a Frame Alignment signal loss.
RMT	Red	Lights when receiving a Frame Alignment signal loss alarm from a distant office.
AIS	Red	Lights when a pattern of consecutive “1” bits is received. The distant office transmits this
		signal for a loop-back test.
		B channel status
		ON	: More than 10 channels are busy
BL	Red	OFF	: All channels are idle
		Flash (60 IPM):Only one channel is busy
		Flash (120 IPM):2 through 10 channels are busy

CHAPTER 4 ND-45504 (E)

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