3 connections with rs232c devices – Panasonic FP2 User Manual

Page 35

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RS232C Port Wiring

FP2−CCU

4 − 7

4.2 Wiring between RS232C Ports

4.2.3

Connections with RS232C Devices

Connections with an RS232C device that has a D−sub 9−pin connector should be made

as follows.

Pin No.

1
2
3
4
5
6

7

8
9

FG
SD
RD
RS
CS
DR
SG
CD
ER

Computer Communication

Unit side

FG
SD
RD
RS

(CS)

SG

(CD)

ER

Pin No.

1
2
3
4
5
6

7

8
9

RS232C side (9−pin)

Mnemonic

Mnemonic

− The “CS” and “CD” signals from the partner device are set invalid on the

Computer Communication Unit side, so no connections are necessary.

− Depending on the RS232C device, there may be times when the device

will not operate properly if the “CS” and “CD” signals do not go on, so

the “RS” and “CS” signals and the “ER” and “CD” signals on the

RS232C device side should be shorted.

Tip

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