Alarm Input Port Specification; Alarm Output Port Specification; Alarm Output Port Relay Parameters - SC2000 PL0978 User's Installation And Operation Manual

2.6.1 Alarm input port specification

1 channels alarm input. Alarm input type unlimited.
The grounding and the com port of the alarm sensor are parallel (The alarm sensor is external power
supply) .
The grounding of the alarm and the DVR should be shared.
The NC port of the alarm sensor must be connected with the DVR alarm input port.
The grounding of the power supply and the alarm sensor must be shared when used in external power
supply.

2.6.2 Alarm output port specification

1 channels alarm output. There is external power supply when using the external alarm equipment.
Please refer to the relay relevant parameters to avoid the overload that damages main machine.

2.6.3 Alarm output port relay parameters

Type：JRC-27F
Interface material
(resistance load)
Surge voltage
Turn-on time
Turn-off time
Environment
recording control equipments such as the decoder
rating
maximal switch voltage
maximal switch current
isolation
longevity
temperature
Rating switch capacity
maximal switch power
Homo-polarity
Inhomo-polarity
interface
Interface and winding
interface
Homo-polarity
3ms max
interface
3ms max
mechanical
electric
-40~+70℃
Page 12
silver
30VDC 2A, 125VAC
125VA 160W
1A
250VAC, 220VDC
1A
1000VAC 1minute
1000VAC 1 minute
1000VAC 1 minute
1500VAC (10×160us)
50×106 MIN（3Hz)
200×103 MIN (0.5Hz)