JVC DT-R24L4D - Manual (Page 18)

18
External Control
About the external control
This monitor has three external control terminals.
MAKE/TRIGGER terminal (RJ-45): The following external control
systems are available.
(1) MAKE (make contact) system: Controls the monitor by
short-circuiting the corresponding pin terminal to the GND pin
terminal, or disconnecting (opening) it.
(2) TRIGGER (trigger) system: Controls the monitor by sending
the pulse signal instantaneously to the corresponding pin
terminal.
☞ “Using the MAKE/TRIGGER system” on the right
RS-485 terminals (RJ-45): Controls the monitor with the RS-485
system (
☞ “Using the serial communication” on page 20).
RS-232C terminal (D-sub 9-pin): Controls the monitor with the RS-
232C system (
☞ “Using the serial communication” on page 20).
Set the following items of “REMOTE SETTING” in SET-UP MENU
according to the external control terminal and control system
(
☞ “SERIAL TYPE,” “PARALLEL TYPE” on page 16).
Control
terminal
Control system
The settings of this unit
“SERIAL
TYPE”
setting
“PARALLEL
TYPE”
setting
MAKE/
TRIGGER
terminal MAKE — MAKE
TRIGGER — TRIGGER
RS-485
terminal Serial
communication RS-485
RS485* 1
—
RS-232C
terminal RS-232C
RS232C* 1
—
*1 For a monitor connected to a personal computer etc, select
the terminal the equipment is actually connected to. For other
monitors, select “RS485.”
Control priority is as follows.
MAKE > TRIGGER = serial communication = buttons and menu
on the monitor
You can use external control even when “CONTROL LOCK” is set
to “VOL.LOCK” or “ALL LOCK” (
☞ page 17).
When the monitor is off (on standby), external control is not
available. But certain external controls (starting/terminating
communication, turning on the monitor) are available through the
serial communication (
☞ page 21).
You can control the monitor by a personal computer or dedicated
controller*
2 .
“Using the MAKE/TRIGGER system” on the right.
*2 The controller is not commercially available. Consult your dealer if
you need it.
PC, etc.
RS-485 IN
or
RS-232C
RS-485
OUT
RS-485
IN
RS-485
OUT
RS-485
IN
RS-485
OUT
For the details, see page 20.
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Using the MAKE/TRIGGER system
The MAKE/TRIGGER terminal is confi gured as follows. You can assign
a function to each pin terminal in “REMOTE SETTING” (
☞ “PIN1, PIN2,
PIN3, PIN4, PIN5” in “PARALLEL TYPE” on page 16).
You cannot change the functions assigned to the pin terminals from
6th to 8th.
Pin No. Pin name
1 PIN1
2 PIN2
3 PIN3
4 PIN4
5 PIN5
This is a female terminal. 6 TALLY* 1
7 ENABLE* 2
8 GND
*1 The 6th pin terminal controls turning on or off the tally lamp
(available to control even when the 7th pin terminal is invalid).
*2 The 7th pin terminal makes the external control valid/invalid. Make
sure to control the terminal by the MAKE system.
To assign the functions to the pin terminals
For the operation procedure, see page 12.
1
Select “REMOTE SETTING” on the SET-UP MENU.
2
Set “PARALLEL TYPE” to “SET.”
3
Select a pin name (“PIN1” – “PIN5”) for which you want to assign
a function, then select the function you want to assign.
For the selectable functions, see the table on page 19.
Operation of the external control
1
Set “PARALLEL TYPE” of “REMOTE SETTING” to “MAKE” or
“TRIGGER” in the SET-UP MENU.
2
Short-circuit the 7th pin terminal (ENABLE) to the 8th pin terminal
(GND) so that the monitor can be controlled by the external
control.
3
When the “MAKE” system is selected: Operate each function
by short-circuiting the corresponding pin terminal to the 8th pin
terminal (GND) or opening it.
When the “TRIGGER” system is selected: Operate each function
by pulse control, that is short-circuiting the corresponding pin
terminal to the 8th pin terminal (GND) for about 1 second and
opening it.
When changing the input with MAKE system, only one pin terminal
must be short-circuited. (Other pin terminals must be opened.)
When selecting the “TRIGGER” system, you can operate only one
function at a time. Operate the functions one by one.
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