Alarm Function - Sony SSM-Q177 Service Manual

MENU Operation
6
When you have finished setting, press SET UP
(ENTER) button to return to MAIN MENU.
FREEZE SET Menu
FREEZE SET
FREEZE : ON
1
Press the – or + button to select ON or OFF.
ON: Freeze function works in Quad mode.
OFF: Freeze function does not work in Quad mode.
2
When you have finished setting, press SET UP
(ENTER) button to return to MAIN MENU.
14

Alarm Function

Connect external sensors to ALARM IN connectors on the
rear panel of the monitor. Alarm signal input from external
sensors will trigger a display of a picture on the channel in
which the alarm signal was received. The monitor will send
out alarm signal output that will trigger visual recording on
a device such as a Time-Lapse VCR.
Alarm state
When an alarm signal comes through ALARM IN
connector, the monitor enters an alarm state described
below.
• A buzzer that indicates an alarm state will sound. (Only
when you have selected BUZZER ON on the menu.)
• A lamp on the channel button will start flashing.
• The monitor will show on full screen a picture of the
channel that received the alarm signal and a sign that says
ALARM. If two or more channels received the alarm
signal, the monitor will show a quad display, and the
pictures of the channels that received the alarm signal will
have a letter A on the display.
• ALARM OUT TRG connector will send out an alarm
trigger signal for 100ms at LOW voltage.
• The alarm signal output sent out from the ALARM OUT
connector turns to ON (LOW).
1-8
ALARM SET Menu
ALARM SET
BUZZER : ON
ALARM TIME : 30sec
1
Press B/v or V/b button to select BUZZER.
2
Press the – or + button to select ON or OFF.
ON: Alarm input will set off the buzzer.
OFF: Alarm input will not set off the buzzer.
3
Press B/v or V/b button to select ALARM TIME.
4
Press the – or + button to select an alarm time.
Each time you press the – or + button, the display goes
through a sequence as follows: 05sec, 10sec, 20sec,
30sec, 60sec, 90sec, 120sec, 180sec.
If the BUZZER is ON, the BUZZER will sound for the
duration of the alarm time that you selected. When the
alarm time is completed, the alarm state automatically
ends and the buzzer stops.
5
When you have finished setting, press SET UP
(ENTER) button to return to MAIN MENU.
Termination of the alarm state
To terminate the alarm signal, press the channel button of
the channel that received the alarm signal. When the alarm
time that is set on the menu is elapsed, the alarm state will
terminate itself automatically. When the alarm state is
terminated, the monitor enters a state described below.
• The buzzer will stop.
• The lamp on the channel button will go off.
• The ALARM sign or A sign on the monitor will disappear.
• The monitor will show quad display.
• The alarm signal output sent out from the ALARM OUT
TRG connector turns to OFF (HIGH).
Alarm I/O signal
5V
ALARM IN
5V
ALARM OUT
Alarm set time
5V
ALARM
TRIGGER OUT
–0V
100ms
Falling edge triggers alarm
0V
–0V
Low
15
SSM-Q177/Q177CE