22
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 terminal
(RJ-45): Controls the monitor with the RS-485
system (
☞
“Using the serial communication” on page 24).
●
RS-232C terminal
(D-sub 9-pin): Controls the monitor with the RS-
232C system (
☞
“Using the serial communication” on page 24).
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 20).
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 20)
●
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 25)
<MAKE/TRIGGER system>
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.
<Serial communication>
PC, etc.
RS-485
IN
RS-485 IN
or
RS-232C
RS-485
OUT
RS-485
IN
RS-485
OUT
RS-485
OUT
●
For the details, see page 24.
Using the MAKE/TRIGGER
system
The MAKE/TRIGGER terminal is configured as follows.
You can assign a function to each pin terminal in “REMOTE SETTING.”
(
☞
“PIN1, PIN2, PIN3, PIN4, PIN5” in “PARALLEL TYPE” on page 20)
●
You cannot change the functions assigned to the pin terminals
from 6th to 8th.
This is a female
terminal.
Pin No.
Pin name
1
PIN1
2
PIN2
3
PIN3
4
PIN4
5
PIN5
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 13.
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 23.
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.
DTV21G11̲LCT2681.indb 22
DTV21G11̲LCT2681.indb 22
12.2.5 10:17:08 AM
12.2.5 10:17:08 AM
