Axis 250S User Manual page 51

AXIS 250S User's Manual
Schematic Diagram - Terminal Connectors A & B
3.3V
RS-485
AXIS 250S
Switch
Mode
Power
Supply
A
B
GND PIN 5
Center pin +
Ring -
o
PS-K 9W
o
A1
o
A2
o
A3
o
A4
o
o
o
B1
o
B2
o
B3
o
o
B4
o
COM
Unit Connections
Infrared Sensor
o
o
o
o
o
-
o
(e.g. door switch)
o
o
Device
o o
51
External
power
supply
-
o