ADTRAN TDU 120e user manual Control In/Chain, Pin Name Description

Models: TDU 120e

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Appendix B. Connector Pinouts

Table B-2. Network Pinout of the Male 15-Pin D-Connector

Pin

 

Name

Description

 

 

 

 

1

T

TX DATA TIP

Sends data toward the Network

 

 

 

 

2

FG

FRAME GROUND

 

 

 

 

 

3

T1

RXDATA-TIP

Receives data from the Network

 

 

 

 

4

FG

FRAME GROUND

 

 

 

 

 

5,6,7,8

 

UNUSED

 

 

 

 

 

9

R

TXDATA-RING

Sends data toward the Network

 

 

 

 

10

 

UNUSED

 

 

 

 

 

11

R1

RXDATA-RING

Receives data from the Network

 

 

 

 

12,13,14,15

 

UNUSED

 

 

 

 

 

Control In/Chain In

This is used as an RJ-45 port for connection to a computer or modem (Control In) or to another TSU/TDU family multiplexer or TSU 100 (Chain-In). See Table B-3 for the pinout for the control/chain-in connector.

 

 

Table B-3. Control In/Chain In Pinout

 

 

 

 

Pin

Name

 

Description

 

 

 

 

1

GND

 

Ground - connected to unit chassis

 

 

 

 

2

RTS

 

Request to send - flow control

 

 

 

 

3

RXDATA

 

Data received by the TDU 120e

 

 

 

 

4

UNUSED

 

 

 

 

 

 

5

TXDATA

 

Data transmitted by the TDU 120e

 

 

 

6

Ext Alarm A

When grounded, generates Alarm A

 

 

 

7

Ext Alarm B

When grounded, generates Alarm B

 

 

 

 

8

CTS

 

Clear-to-send-flow control

 

 

 

 

B-2

TDU 120e User Manual

61202156L2-1

Page 126
Image 126
ADTRAN TDU 120e user manual Control In/Chain, Pin Name Description