Using The Serial Communication - JVC GM-H40L1G Instructions Manual

How to Use External Control

7 Using the serial communication

You can control the monitor from a personal computer or a dedicated controller via the RS-485 or RS-232C terminal. For
details on operating the monitor from the personal computer or the dedicated controller, consult your dealer.
Input terminal Cable
RS-485 Prepare a straight cable with
a RJ-45 connector.
RS-232C Prepare a straight cable with
a RS-232C connector.
<RS-485 terminal>
1 2 3 4 5 6 7 8
<RS-232C terminal>
32
Specifi cation
See the table
below.
This is a female terminal.
This is a female terminal.
(cont.)
Communications specifi cations
Baud Rate: 4800/9600/19200 (factory pre-set; 4800)
Data Bits: 8 bits
Parity: No parity
Stop Bits: 1 bit
Communication Cord: ASCII Cord
Pin No. IN terminal signal
1 TXD +
2 TXD –
3 RXD +
4 NC
5 NC
6 RXD –
7 5 V power*
8 GND
* The 5V power supply of the 7th terminal is for the controller
exclusively for this monitor. Do not use it for other devices.
Pin No. Signal
1 —
2 RD (Receive Data)
3 TD (Transmit Data)
4 —
5 GND (Ground)
6 —
7 —
8 —
9 —
OUT terminal signal
TXD +
TXD –
RXD +
NC
IR. OUT
RXD –
NC
GND