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User Manual
Attentions for PTZ decoder connection:
1. Confirm that the PTZ decoder and Net DVR are one point ground connected, or common mode voltage might exist to cause the PTZ invalid.
2. Prevent high voltage inroad, carefully dispose connection cables secure thunder proof.
RS485 support half-duplex , specific operation method is as follows:
Choose “RS485 Half-duplex” in “COM” interface, the RS485 signal lines T/R+, T/R- support one-way send and receiving, used in PTZ control, serial keyboard control .
3.3.5 RS-485 Connection
Normally, Alarm’s power usually is much bigger, preferably supply power separately, and do not use the DVR’s power to supply.
Each series alarm output critical parameters are as follows: 240V/AC7A, 125V/AC10A, 28V/DC10A. Exceeding these parameters will damage the motherboard.
Note: The power of external alarm device should be limited as 120V/AC 1A, 24V/DC 1A when use 2 segment alarm.
supply the
power separately
Output1A Outnput1B
Alarm
DVR
Содержание DVR5216-A
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