LT Security LTD6299 - Manual (Page 17)

- 16 -
For 4-line devices (such as keyboard)
DVR Devices
For PTZ cameras
DVR Devices
„ MAIN-AUX monitor
Please refer to the diagram below to connect the MAIN-AUX monitor output connector to
a surveillance TV monitor or the MAIN-AUX monitor input connector of another digital
video/audio recorder. The MAIN-AUX monitor, if enabled, has the same output display
as the main monitor, and is typically used with RS-485 keyboard controller for distant
monitoring and control (e.g. in central control room).
N/C N/C GND RxD+ RxD- Tx
D+ Tx
D- GND
Set this unit to 3-line
or 2-line according
to the connected
devices.
GND
TxD-
TxD+
RxD-
RxD+ GND
TxD-
TxD+
RxD-
RxD+
GND
RS485-
RS485+ GND
TxD-
TxD+
RxD-
RxD+