Technical Manual
80 81
Relay Specification
Model: JRC-27F
Material of the contact Silver
Rating (Resistance Load) Rated switch capacity 30VDC 2A, 125VAC 1A
Maximum switch power 125VA 160W
Maximum switch voltage 250VAC, 220VDC
Maximum switch currency 1A
Insulation Between contacts with same polarity 1000VAC 1minute
Between contacts with different
polarity
1000VAC 1minute
Between contacts and winding 1000VAC 1minute
Surge voltage Between contacts with same polarity 1500V (10×160us)
Length of open time 3ms max
Length of close time 3ms max
Longevity Mechanical 50×106 times (3Hz)
Electrical 200×103 times (0.5Hz)
Temperature -40°C ~+70°C (-40°F to +158°F)
6.2 ALARM OUTPUT
The alarm output port should not be directly connected to a higher power load (greater than
1A) to avoid high current which may damage the relay. Use the co-contactor to establish the
connection between the alarm output port and the load.
• 2 way relay alarm output (NO contact). Provides external power to external alarm device.
• To avoid overloading, please read the following relay parameters sheet carefully.
• RS485 A/B cable is for the A/B cable of the PTZ camera.
6.3 ALARM SETUP AND ACTIVATION
Once external alarms are properly connected, you can configure the NVR to activate them.
The Alarm interface can be selected from the
Setting menu.
The upper portion of this window is used to choose an alarm, its configuration and its type.
PICTURE 6-3
ALARM
Trigger Period
Alarm Out
Show Message
Record Channel
PTZ Activation
Tour
Snapshot
Buzzer
Alarm Upload
Event Type
Enable
Hold Time
Alarm Continue
Rec. Continue
sec.
sec.
Alarm In
Type
Local Alarm 1
Normal Open
Send Email
Set
Set
10
sec.
10
5
Default Copy Save Cancel
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3
Event Type – Choose between Local and
Remote input. Remote input must be
connected through an IP camera.
Alarm In – Select the alarm channel you are
configuring.
Enable – When this is selected the alarm
response(s) in the bottom portion of
this window are enabled.
Type – Alarms are either Normally Open (NO)
or Normally Closed (NC)
SETTING
GENERAL NETWORKRS232
PAN/TILT/ZOOM DISPLAY DEFAULT
PICTURE 6-3