Connecting Rs-85/Rs-C Ttl Device; Connecting Alarm Device - LG LSX701 User Manual

Connections
Connecting RS-485/RS-232C TTL
Device
Use these ports to connect an external device of RS-C
TTL/ RS-85 format.
Tx(+)
RS-485 Unit
Rx(-)
GND
Tx(+)
RS-232C TTL
Rx(-)

Connecting Alarm Device

Alarm terminals are used to connect the alarm (relay)
devices such as sensors, door switches, etc.
Connect the alarm (relay) device to the alarm (relay) output
terminal. Alarm signal outputs at an event occurrence.
Alarm (Relay)
Device
1