Maxtor 16Channel Stand Alone DVR User Manual download pdf (Page 43)

Figure 3-18

3.7.3 Alarm Output Port

z Provide external power to external 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℃

3.8 RS232

Please note simple entry level series product and simple lite series product does not

support RS232 function.

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.

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