LG LVC-SX703PB/OB/MB - Manual (Page 14)

14
External Device Connections
RS-485 Connection
Connect to an external controller of RS-485 format.
Alarm Connection
Connect an external device such as a buzzer or
lamp to the ALARM terminal. When the camera
detects motion, the alarm output signal is supplied
to the connected external device.
Contact Ratings
• Maximum load current is ±130mA.
• Do not connect any system or
device that has over 40 Vp-p
(DC 30 V) bias voltage on the
contact terminal.
Notes:
Use a relay unit if the voltage or current of the
connected device exceeds the ratings.
Multi-Input Connection
Connect an external device to use HOT KEY func-
tion. The HOT KEY function is operated when the
input signal is “ON”. To set the HOT KEY function,
see page 35.
The Multi-Input terminal has the register of DC
3.3V pull-up. The sink current must be less than
0.8mA.
OFF: Open contact
ON: Closed contact
RS-485 (TR+)
RS-485 (TR-)
ALARM (OUT)
ALARM (COM)
MULTI (INPUT)
MULTI (GND)
ALARM
COM
Equivalent Diagram
LVC-SX703PC_AA4HEL_ENG_MFL-129 11/7/06 12:05 PM Page 14