FingerTec Ingressus IV - Manual (Page 18)

18
IN
GND
Smoke
Detector
NO
COM
NC
Alam/
Siren
--
+
Power
Supply
+
--
RS232/485
Converter
485+
485---
SGND
RS485
RS232
CONNECTING TO AUX COMPONENTS
CONNECTING TO PC vIA RS485
Single controller system
Multiple controller system
Note:
1. ONLY use RS485 connection to link up Ingressus and PC if TCP/IP connection is unavailable.
2. Use standard belden shielded twisted pairs RS485 cables.
3. Make sure you have RS232/485 data converters as the communication interface between RS485
and PC serial port (RS232).
4. Set the DIP switch at Ingressus to define the Device ID of each Ingressus.