Manual

WindO/I-NV2 User’s Manual 34-49
4 HG2F
34
MICRO/I Specifications
4.4
External Interfaces
● Serial Interface 1
■ D-sub Connector
To enable th e 33 0Ω built-in terminator, connect terminal No. 9 [TERM] and terminal No. 10 [RDA/RD (+)] together.
CAUTION
Make sure to turn off the power to the HG2F before wiring each interface.
Interface Specification RS232C/485(422)
Connector D-sub 25 pin
No. Name Function
1FG Frame Ground
2 SD Send Data (RS232C)
3 RD Receive Data (RS232C)
4 RS Request to Send (RS232C)
5 CS Clear to Send (RS232C)
6- -
7 SG Signal Ground
8- -
RS485 RS422
9 TERM Terminator TERM Terminator
10 RDA Receive Data A RD+ Receive Data (+)
11 SDA Send Data A SD+ Send Data (+)
12-- --
13-- --
14-- --
15 SDB Send Data B SD- Send Data (-)
16 RDB Receive Data B RD- Receive Data (-)
17-- --
18 - - CS- Clear to Send (-)
19 - - RS- Request to Send (-)
20 ER Data Terminal Ready (RS232C)
21 - - CS+ Clear to Send (+)
22 - - RS+ Request to Send (+)
23-- --
24-- --
25-- --