IC Realtime Max Series: 4/8/16 Channel D1 1.5U Standalone DVR - Manual (Page 28)

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Figure 3-2
3.8.3 Alarm Output Port
z Provide power to peripheral alarm device.
z To avoid overloading, please read the following relay parameters sheet carefully.
z RS485 A/B cable is for the A/B cable of the PTZ decoder.
Relay Specification
Model:
JRC-27F
Material of the
touch
Silver
Rated switch capacity 30VDC 2A, 125VAC 1A
Maximum switch power 125VA 160W
Maximum switch voltage 250VAC, 220VDC
Rating
（
Resistance
Load）
Maximum switch currency 1A
Between touches with same
polarity
1000VAC 1minute
Between touches with different
polarity
1000VAC 1minute
Insulation
Between touch and winding 1000VAC 1minute
Surge voltage
Between touches with same
polarity
1500V (10×160us)
Length of open
time
3ms max
Length of close
time
3ms max
Mechanical 50×106 times (3Hz)
Longevity
Electrical 200×103 times (0.5Hz)
Temperature -40℃ ~+70℃
3.9 RS232
You can connect the DVR with POS or Keyboard through RS232.
With POS system, the DVR can communicate through RS232 and network. For the POS system, the
DVR can integrate the text content and even search the record through the info.
The series DVR also support NKB operation. You can operate the DVR from the keyboard controls
instead of using the control pad on the front panel of the unit.