© TT Electronics plc

ISS.3 19/06/2020 Page: 2

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

TT Electronics IoT Solutions Ltd

Tofts Farm East, Brenda Road, Hartlepool, TS25 2BQ, UK

t: +44 (0) 1429 852 500

STONTRONICS: T4971ST T4972ST

RJ –45 Input (Data Only)

RJ –45 Output (Data & Power)

Pin

Symbol

Description

Symbol

Description

1

Rx+

Data Receive

Rx+

Data Receive

2

Rx-

Data Receive

Rx-

Data Receive

3

Tx+

Data Transmit

Tx+

Data Transmit

4

NC

Not Connected

-Vdc_return(+)

Feeding power (+)

5

NC

Not Connected

-Vdc_return(+)

Feeding power (+)

6

Tx-

Data Transmit

Tx-

Data Transmit

7

NC

Not Connected

-Vdc

Feeding power (-)

8

NC

Not Connected

-Vdc

Feeding power (-)

Note:

1. Pins 7 and 8(-Vdc) should not be shorted to ground

T4972ST RJ-45 Connector & Pin-Out:

T4972ST RJ-45 Drawing: