App6-10 Appendix 6 Universal Serial Communications
MJ2 (V706 only) Specifications as an RS-232C Connector
The pins of modular jack 2 correspond to signals as given below.
The specifications for the RS-232C connector that links to the communication device are shown below.
• Wiring
Perform wiring as shown below.
CAUTION
To use an MJ2 on a V706 as an RS-232C connector, set the slide switch on the V706 to
the upper position: RS-232C.
For details, refer to the separate V706 Hardware Specifications.
MJ2 Pin No. Signal Name Contents
5
SG Signal ground
6
7 RD RS-232C receive data
8 SD RS-232C send data
Pin No. Name Signal Name Signal Direction (V Series ←→ Communication Device)
8 Send data SD
7 Receive data RD
5 Signal ground SG
12345678
SG
SD
RD
SG
SHELL
8
7
5
FG
SD
RD
RS
CS
SG
1
2
3
4
5
7
* Use twist-shielded cables.
V706 (MJ2)
General-purpose
computer
Signal
Name
Pin No.
Signal
Name
Pin No.
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