Control I/O Connector Functions - Toa VM-2120 Instruction Manual

21. CONTROL I/O CONNECTOR FUNCTIONS

The rear panel-mounted Control I/O connector enables the VM amplifier to be controlled or monitored by
connected external equipment. Referring to the pin arrangement and functions, prepare the matching D-sub
male connector (screw-lock type) for connection to the external equipment. (See p. 10 No. 30 CONTROL I/O
connector.)
VM amplifier's D-sub female connector
13
25
CONTROL I/O connector pin function table
Pin
Signal name
No.
1 AC power ON
2 DC power ON
3 Message 1 activation
4 Message 2 activation
5 Message 3 activation
6 Message 4 activation
7 Message 5 activation
8 VM amplifier's
broadcast cutoff control
9 Chime activation
(4 built-in chimes)
10 Power ON/OFF control
11
12 Emergency alert
activation
13 Emergency stop
activation
14 Emergency evacuation
activation
15 Failure indicator control
16 GND
17 GND
18 GND
19 GND
20 GND
21 Power switch on
36
CONTROL I/O
1
14
IN
/OUT
OUT Active Low
OUT Active Low
IN One-shot make
IN One-shot make
IN One-shot make
IN One-shot make
IN One-shot make
IN At make
At break
IN Break-to-Make edge
Make-to-Break edge
IN Break-to-Make edge
Make-to-Break edge
– –
IN One-shot make
IN One-shot make
IN One-shot make
IN At make
OUT Active Low
Locking nut: 4-40 UNC
Signal/logic
When AC power is on
When DC power is on
Activates EV-200M Board's Message 1.*
Activates EV-200M Board's Message 2.*
Activates EV-200M Board's Message 3.*
Activates EV-200M Board's Message 4.*
Activates EV-200M Board's Message 5.*
Cuts off the VM amplifier's power amplifier
output.*
EXTERNAL SP INPUT go through to the
speakers.)
The VM amplifier's power amplifier output is
resumed.
Activates a start chime tone.
Activates an end chime tone (4-tone Down).
Turns power on.
Turns power off.
–
Places the unit in "Emergency broadcast" mode,
during which time an "Alert" announcement and
an "Evacuation" announcement are broadcast. *
Resets the unit from "Emergency broadcast"
mode.
Places the unit in "Emergency broadcast" mode,
during which time an "Evacuation" announcement
is repeated. *
The FAULT indicator lights to indicate external
equipment failure.
When the power switch is on by means of
manual or external control
Function/status
* (External signals applied to
1 2
–
1
1
1
1
1
1
1