CONEL CGU 04i [16/56] Cgu 04i description

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CONEL CGU 04i [16/56] Cgu 04i description
CGU 04i DESCRIPTION
16
2.7.4 Connector PORT2 - RS422
Pin
Number
Signal
mark
Description Data direction
1 GND Signal and supply ground
2 GND Signal and supply ground
3 RxD- Receive Data (-) Input/Output
4 RxD+ Receive Data (+) Input/Output
5 TxD- Transmit Data (-) Input/Output
6 TxD+ Transmit Data (+) Input/Output
7 +12V EXT External supply
8 +12V EXT External supply
ATTENTION! Power supply is selected on the expansion port RS422 by help of a
jumper, ref. 2.9. If galvanic separation is required the converter must have an external
power supply.
Circuit example of the equipment with modem with data length less than 10 m:
DC
Meter
SGND
TxD(-)
TxD(+)
RxD(-)
RxD(+)
Modem CGU 04i
Pin 1
SGND
Pin 2 – SGND
Pin 3 – RxD (-)
Pin 4 – RxD (+)
Pin 5 – TxD (-)
Pin 6 – TxD (+)
Pin 7 – +12V EXT
Pin 8 – +12V EXT
+

Содержание

127
Кешбек Менеджер