Download GP3000 Series Hardware Manual - Pro

GP3000 Series Hardware Manual
In the case of RS232C
Pin
Arrangement
5
9
1
6
Pin No.
1
2
3
4
5
6
7
8
Signal Name
CD
RD(RXD)
SD(TXD)
ER(DTR)
SG
DR(DSR)
RS(RTS)
CS(CTS)
9
CI(RI)/VCC
Shell
FG
(GP unit side)
*1
RS232C
Direction
Meaning
Input
Carrier Detect
Input
Receive Data
Output
Send Data
Output
Data Terminal Ready
Signal Ground
Input
Data Set Ready
Output
Request to Send
Input
Send Possible
Called status display
Input/+5V±5% Output 0.25A *1
Frame Ground
(Common with SG)
The RI/VCC selection for Pin #9 is switched via software. The VCC output is not
protected against overcurrent. To prevent damage or a unit malfunction, use only the
rated current.
In the case of RS422/RS485
Pin
Arrangement
5
9
1
6
Pin No.
1
2
3
4
5
6
7
8
9
Signal Name
RDA
RDB
SDA
ERA
SG
CSB
SDB
CSA
ERB
Shell
FG
(GP unit side)
4-36
RS422/RS485
Direction
Meaning
Input
Receive Data A(+)
Input
Receive Data B(-)
Output
Send Data A(+)
Output
Data Terminal Ready A(+)
Signal Ground
Input
Send Possible B(-)
Output
Send Data B(-)
Input
Send Possible A(+)
Output
Data Terminal Ready B(-)
Frame Ground
(Common with SG)