DIGITAL LINK CORPORATION

DL080

Card Type T1 DSU/CSU
Chip Set Unidentified
I/O Options AC power connector, DC power connector, data port, serial port (RS-232), network port
Wiring Type RJ-48C, RS-232, V.35/RS-449 connector
Maximum Data Rate 64Kbps (24 channels)
Data Bus External


CONNECTIONS

Function

Label

Function

Label

AC power connector

CN1

Network port

CN6

Ground stud

CN2

Monitor connector - line in

CN7

DC power connector

CN3

Monitor connector - line out

CN8

Data port

CN4

Fuse

F1

Serial port

CN5

   


USER CONFIGURABLE SETTINGS

Setting

Label

Position

  Contiguous bandwidth allocation

S1/6

Off

  Alternate bandwidth allocation

S1/6

On

  DTE clock set to +SCT

S1/7

Off

  DTE clock set to SCTE

S1/7

On

  Net framing ESF

S2/1

Off

  Net framing D4

S2/1

Off

  Line code B8ZS

S2/2

Off

  Line code AMI

S2/2

On

  Internal timing source

S2/5

Off

  Network timing source

S2/5

On

  Serial port 8-bit word lenght

S2/11

Off

  Serial port 7-bit word lenght

S2/11

On

  DIP switch configuration

S2/12

Off

  Terminal configuration

S2/12

On


DATA RATE SELECTION

Timeslot(s)

S1/1

S1/2 S1/3 S1/4

S1/5

 

1

Off

Off Off Off

On

 

2

Off

Off Off On

Off

 

3

Off

Off Off On

On

  4 Off Off On Off Off
  5 Off Off On Off On
  6 Off Off On On Off
  7 Off Off On On On
  8 Off On Off Off Off
  9 Off On Off Off On
  10 Off On Off On Off
  11 Off On Off On On
  12 Off On On Off Off
  13 Off On On Off On
  14 Off On On On Off
  15 Off On On On On
  16 On Off Off Off Off
  17 On Off Off Off On
  18 On Off Off On Off
  19 On Off Off On On
  20 On Off On Off Off
  21 On Off On Off On
  22 On Off On On Off
  23 On Off On On On
  24 Off Off Off Off Off


DATA ENCODING SELECTION

Data

S1/8

S1/9

 

Normal

Off

Off

 

HDLC

Off

On

 

Forced

On

Off


LINE BUILD OUT SELECTION

Line Build

S2/3

S2/4

 

0dB

Off

Off

 

-7.5dB

Off

On

 

-15dB

On

Off


SERIAL PORT RATE SELECTION

Setting

S2/6

S2/7

S2/8

 

1200bps

Off

On

On

 

2400bps

Off

On

Off

 

4800bps

Off

Off

On

 

9600bps

Off

Off

Off

 

19.2Kbps

On

On

Off


SERIAL PORT PARITY SELECTION

Setting

S2/9

S2/10

None

Off

Off

Odd

Off

On

Even

On

Off


DIAGNOSTIC LEDS

LED

Color

Status

Condition

ACK

Unidentified

On

DSU/CSU receives Loop Up/Loop Down code - acknowledges codes

ACK

Unidentified

Off

DSU/CSU normal operation

CTS

Yellow

On

CTS signal is high

CTS

Yellow

Off

CTS signal is low

DTE

Unidentified

On

DTE/NET loopback running from front panel

DTE

Unidentified

Blinking

DTE loopback running: LT asserted

DTE

Unidentified

Off

DTE normal operation

DTR

Yellow

On

DTR signal is high

DTR

Yellow

Off

DTR signal is low

LED1

Green

On

DSU/CSU power is on and has passed the self test

LED1

Red

On

DSU/CSU power is on; self test failed. Light changes green after 10seconds

LED1

Yellow

Blinking

DSU/CSU power is on; self test is running

LED1

Yellow

On

DSU/CSU is on; test other than self test is running

LED1

Yellow

Off

Power is off

LED2

Green

On

DSU/CSU is receiving a signal from network

LED2

Red

On

DSU/CSU is constantly detecting CMI, OOS, or OOF error signals from network

LED2

Red

Blinking

DSU/CSU is detecting CMI, OOS, or OOF intermitently error signals from network

LED2

Yellow

On

DSU/CSU is detecting Yellow or Blue alarm from network

LED2

Yellow

Off

DSU/CSU is not receiving a signal from network

LED3

Unidentified

On

DSU/CSU in Net Loopback mode

LED3

Unidentified

On

DSU/CSU in normal operation

NET Unidentified

On

DSU/CSU in Net Loopback operation
NET Unidentified

Off

DSU/CSU in normal operation

RD

Green

On

DSU/CSU is receiving pulses from network

RD

Green

Off

DSU/CSU is not receiving pulses from network

RTS

Yellow

On

RTS signal is high

RTS

Yellow

Off

RTS signal is low

TD

Green

On

DSU/CSU is detecting pulses from the DTE

TD

Green

Off

DSU/CSU is not detecting pulses from DTE