Rs-232; Rs-485 - WatchNet RTS series Installation And User Manual

JRC-27F
Model:
Silver
Material of the
touch
Rating
Rated switch capacity
resistance
Maximum switch power
load
Maximum switch voltage
Maximum switch current
Insulation Between touches with
same polarity
Between touches with
different polarity
Between touch and
winding
Between touches with
Surge voltage
same polarity
3ms max
Length of
open time
3ms max
Length of
close time
Longevity
Mechanical
Electrical
Temperature -40°F ~+158°F

RS-232

3.8
Connect the DVR with a POS or Keyboard through RS-232. With a POS system,
the DVR can communicate through RS-232 and Ethernet. The DVR can integrate
the text content and even search the record through the info. This series DVR also
support NKB operation. Operate the DVR from the keyboard controls instead of
using the control pad on the front panel of the unit.
To connect a NKB keyboard to the DVR:
1. Assemble the KBD keyboard according to the instructions in its accompanying
installation manual.
2. Connect the KBD keyboard into one of the RS232 ports on the DVR or through
network.

RS-485

3.9
When the DVR receives a camera control command, it transmits that command up
the coaxial cable to the PTZ device. RS-485 is a single-direction protocol, the PTZ
device can't return any data to the unit. To enable this operation, connect the PTZ
device to the RS485 (A, B) input on the DVR. Since RS485 is disabled by default
for each camera, enable the PTZ settings first. This DVR series has support for
multiple protocols such as Pelco-D, Pelco-P.
To connect PTZ devices to the DVR:
1. Connect RS485 A, B on the DVR rear panel.
2. Connect the other end of the cable to the proper pins in the connector on the
camera.
3. Follow the instructions for configuring a camera to enable each PTZ device on
the DVR.
Relay Specification
30VDC 2A, 125VAC 1A
125VA 160W
250VAC, 220VDC
1A
1000VAC 1minute 50/60Hz
1000VAC 1minute 50/60Hz
1000VAC 1minute 50/60Hz
1500V (10×160us)
50×106 times (3Hz)
200×103 times (0.5Hz)
-40°C ~+70°C
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