2.0 INSTALLATION
Connecting the SWCA to a Computer using a Modem
The SWCA can be connected directly to a modem for use in remote sites where a computer may not be available.
Requirements
To use a modem, the following is required:
• a terminal emulation program,
See SECTION 3.0 OPERATION, Use of the SWCA with Terminal Emulation Programs.
•a modem capable of auto answer and supporting a 9600 baud connection,
•an adapter for the DB9 connection from the phone cable to serial port adapter,
•a adapter will be required for most applications. Contact the modem provider and modem documentation for more information.
Additional Possible Requirements
The modem at the inverter location might need to be DC powered if it is
necessary to connect to the inverter during a fault condition where the inverter has shut off its AC output.
Connecting Multiple SWCAs to a Single Computer
Up to eight SWCAs can be used with a single computer serial port. The phone cable four conductors are simply run in parallel using standard phone cable line “splitters”. The splitters must connect the wires of the same color together – do not switch the colors around.
Before connecting multiple adapters to a serial port, connect each adapter individually to ensure it operates properly. The adapter ID number must be changed by using the DOS program provided on the disk before they are connected to the same computer serial port. The ID number can only be changed with a single adapter connected to the computer’s serial port.
©2002 Xantrex Technology Inc.
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