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LX505/LX505SR QUICK INSTALLATION GUIDE
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5.5 Communication Connection
5.5.1 RS232 Communication Port Connection
To connect between LX505/LX505R and host PC, A 9-pin connector (Serial communication connector, female) is
needed to connect the LX505/LX505SR with a host PC via RS232 communication. Please follow the steps below.
(Figure: RS232 Communication Connection)
- Connect RS232-TX (Black with White stripe wire) of LX505/LX505SR to the pin #2 (RXD) of 9-pin connector.
- Connect RS232-RX (Red with White stripe wire) of LX505/LX505SR to the pin #3 (TX) of 9-pin connector.
- Connect GND (Black wire) to the pin #5 of the 9-pin connector.
- Plug in the 9-pin female connector to COM1 or COM2 Port of the Host PC.
- Install and run the LX505/LX505SR application software(STARWATCH TIME PRO, LX ACCES PRO II,
STARWATCH STANDARD).
Black with White stripe wire
Red with White stripe wire
Black
RS232 Communication
9 Pin Female
Connector
2
3
5
Host PC