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DATASMART MODELS 7856X, 7876X

ADC KENTROX

DATASMART MODELS 7856X, 7876X

Card Type

T1 CSU/DSU

Chipset

Unidentified

T1 Transfer Rate

1.544Mbps

T1 Protocol

Unidentified

Frame Type

Unidentified

Data Bus

Serial

CONNECTIONS

Function

Label

Function

Label

Monitor receive equalization in jack

CN1

V.35 serial data port 1

CN8

Monitor receive network out jack

CN2

V.35 serial data port 2

CN9

Monitor monitor jack

CN3

V.24 DCE serial control port

CN10

Monitor transmit equalization out jack

CN4

V.24 DTE serial control port

CN11

Monitor transmit network in jack

CN5

AC or DC power in (depends on model)

CN12

Monitor transmit monitor jack

CN6

T1 line out

CN13

Auxiliary jack (see pinout below)

CN7

Alarm cutoff switch

S3

CN1 PINOUT

Function

Pin

Function

Pin

Positive external clock in

1

Not used

6

Negative external clock in

2

Alarm signal common

7

Chassis ground

3

Normally open alarm contact

8

Signal ground

4

Normally closed alarm contact

9

Unbalanced external clock in

5

   

THUMBWEEL FUNCTION SELECTION

Function

S1

S2

S3

Reset loopback tests

Position 0

Pushed

Not pushed

Begin remote line loopback test

Position 1

Pushed

Not pushed

Unidentified

Position 2

Pushed

Not pushed

Reset to factory defaults and switch settings

Position 3

Pushed for 2 sec.

Pushed for 2 sec.

Unidentified

Position 3

Pushed

Not pushed

Begin near-end line loopback test

Position 4

Pushed

Not pushed

Begin near-end payload loopback test

Position 5

Pushed

Not pushed

Send QRST test code

Position 8

Pushed

Not pushed

Send 3 in 24 test code

Position 9

Pushed

Not pushed

Note:S2 and S3 must always be held for at least one-half of one second for the above functions to take effect.

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

TXD1

Yellow

On

Data port 1 is receiving data from network

TXD1

Yellow

Off

Data port 1 is not receiving data from network

RXD1

Yellow

On

Data port 1 is transmitting data to network

RXD1

Yellow

Off

Data port 1 is not transmitting data to network

CTS1

Yellow

On

Data port 1 CTS is high

CTS1

Yellow

Off

Data port 1 CTS is low

RTS1

Yellow

On

Data port 1 RTS is high

RTS1

Yellow

Off

Data port 1 RTS is low

TXD2

Yellow

On

Data port 2 is receiving data from network

TXD2

Yellow

Off

Data port 2 is not receiving data from network

RXD2

Yellow

On

Data port 2 is transmitting data to network

RXD2

Yellow

Off

Data port 2 is not transmitting data to network

CTS2

Yellow

On

Data port 2 CTS is high

CTS2

Yellow

Off

Data port 2 CTS is low

RTS2

Yellow

On

Data port 2 RTS is high

RTS2

Yellow

Off

Data port 2 RTS is low

DATA

Green

On

Valid data signal detected on T1 interface

DATA

Green

Blinking

Network Set, Reset, or Test code detected on T1 interface

DATA

Green

Off

No valid signal detected on T1 interface

CV

Red

On

Code Violation error detected on T1 interface

CV

Red

Off

Code Violation error not detected on T1 interface

LOS

Red

On

Loss Of Signal condition detected on T1 interface

LOS

Red

Off

Loss Of Signal condition not detected on T1 interface

OOF

Red

On

Signal is out of frame synchronization on T1 interface

OOF

Red

Off

Signal is not out of frame synchronization on T1 interface

DIAGNOSTIC LED(S) (CONíT)

LED

Color

Status

Condition

AIS

Red

On

Alarm Indication Signal condition detected on T1 interface

AIS

Red

Blinking

Alarm Indication Signal being transmitted to T1 interface

AIS

Red

Off

Alarm Indication Signal condition not detected on T1 interface

YEL

Yellow

On

Remote Yellow Alarm condition detected on T1 interface

YEL

Yellow

Blinking

Local Yellow Alarm condition detected on T1 interface

YEL

Yellow

Off

Yellow Alarm condition not detected on T1 interface

PWR

Green

On

Power is on

PWR

Red

On

Self-test failed

PWR

Red

Blinking

Serious problem has occurred

PWR

N/A

Off

Power is off

LOOP

Yellow

On

Local loopback test in progress

LOOP

Yellow

Blinking

Remote loopback test in progress

LOOP

Yellow

Off

Loopback test not in progress

SEND

Yellow

On

Test code being sent

SEND

Yellow

Blinking

Remote loopback test may be in progress but cannot be verified

SEND

Yellow

Off

Test code not being sent

ALM

Red

On

Alarm condition detected and awaiting user intervention

ALM

Green

On

Alarm condition detected; user intervention in progress

ALM

Red

Blinking

Serious problem has occurred

ALM

N/A

Off

Alarm condition not detected