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SW-D7000U, 9CH. COLOR VIDEO MULTIPLEXER
2.7
ALARM INPUTS
Each alarm input can be triggered by a relay contact from devices such as smoke detectors, passive
infrareds (PIR), pressure pads etc. (refer to the relevant instructions). The alarms are disabled while
the menu system is active.
Multiplexer DB25 Connector
Alarm Input No. 1
Alarm Input No. 2 - 9
Typical wiring for Alarm #1 as Normally
Open and Alarm #9 as Normally Closed.
2.8
ALARM OUTPUTS
NOTE:
Do not exceed AC/DC 30V, 500mA on an alarm output relay. These outputs must not be
used for power source.
Typical wiring for Alarm Relays. Relays may be
programmed Normally Open or Normally Closed.
Output Relay No. 1
Output Relay No. 2
Multiplexer DB25 Connector
The alarm output relays can be programmed in the menu system to respond to macro functions,
alarms and video loss. Connect your application to the alarm output relays (resistive loads only).
External Alarm Clear
You can use the External Alarm Clear to clear alarms by connecting it to ground on pins 18, 19 and
20. Clearing an alarm only clears the LED and the keyboard buzzer. The alarm output relay will
follow the programming of the alarm input, which can be transparent, latched or timed-out. Refer to
ALARMS menu programming
2.9
VEXT INPUT
16
JVC PROFESSIONAL, IMAGING PRODUCTS
pin 1
pins 2-9
pins 18-20
Ground
pin 17
pin 21
pin 22
pin 25
Normally Open
(Closes During Alarm)
Typical Alarm Device
Refer to each alarm device's manual for specific wiring details.
Normally Closed
(Opens During Alarm)
Typical Alarm Device
Alarm
Power
Device
Source
VCR Alarm Relay Input
See VCR Manual for
Typical VCR
Connections
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