KTL cctv DVR 9010 User Manual page 38

External I/O Board
There is an "External I/O board" included in the DVR box. You can connect it to
the External I/O port; the pins are identified as the definitions listed on the board. One pin is
listed but of no use: VCR Trigger.
RS-485 (RJ11)
The default RS-485 port connector is RJ11 6P6C connector.
RJ11 Cable 6P6C pin definition:
Pin No. Definition
1
2
3 GND
4 DA (D +)
5 DB (D −)
6
00-37963-ACEB4
Direction
- -
- Reserved
Ground
I/O
I/O
- -
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