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)

Page 72

Revision 2.0

Page 88
Image 88
NEC 2000 IVS manual PN-24DTA DTI