How to use external control – JVC GM-H40L1G User Manual

Page 31

7 About the external control

This monitor has two external control terminals as follows:
• RS-232C terminal:

For operation using this terminal, consult your dealer.

• RS-485 terminals:

You can select the external control system in “REMOTE SYSTEM” on the set-up menu (see “CNT. RJ45
OUT” and “CNT. RJ45 IN” on page 25).

(1) Serial communication:

Controls the monitor by a personal computer or a dedicated controller (see page 32).

(2) IR OUT system:

Controls other equipment by using the remote control supplied with this monitor.

(3) MAKE (make contact system): Controls the function by short-circuiting the corresponding pin terminal to the GND pin

terminal, or disconnecting (opening) it (see page 33).

(4) TRIG. (trigger system):

Controls the function by inputting the pulse signal instantaneously to the corresponding
pin terminal (see page 33).

Set the input/output terminals correctly according to the system you use (see “REMOTE SYSTEM” on page 25).

Control system

“REMOTE IN SEL.” setting

“CNT. RJ45 OUT” setting

“CNT. RJ45 IN” setting

RS-232C

D-sub9

RS485

Any

Serial communication

RJ-45*

RS485

D-sub9*

RS485

Any

IR OUT system

Any

IR OUT

Any

MAKE system

RJ-45

RS485

MAKE

TRIG. system

RJ-45

RS485

TRIG.

* For the monitor connected to the external control equipment, set “REMOTE IN SEL.” according to the actual connection. Set other monitors by

following the setting of the serial communication with “REMOTE IN SEL.” set to “RJ-45” in the table above.

NOTE

• Control priority is as follows:
MAKE or TRIG. (trigger) system > RS-485 system > Buttons on the remote control or the main unit
• While the Control Lock is in use, you can use external control.

Several monitors can be controlled by connecting their RS-485 IN and OUT terminals. See also page 32.

Control signals from the remote control are sent to external equipment via the RS-485 OUT terminal.

How to Use External Control

RS-485 IN or
RS-232C

RS-485
OUT

RS-485 IN

RS-485 OUT

RS-485 IN

RS-485 OUT

Personal computer
or a dedicated
controller

Karaoke
component, etc.

Remote control (supplied)

RS-485 OUT

You can control the monitor by a personal computer or a dedicated controller*. See also page 33.

* External control unit is not commercially available. Consult your dealer if you need a dedicated controller.

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