Rane RPD 1 - Manual (Page 14)

Manual-14
RW 232 Communications Interface
RW 232 is loosely based on PA-422. One key hardware difference is that RW 232 does not utilize hardware handshaking via
DTR/DSR. The beginning of a message always takes the form:
$FB xx FB xx (where xx = ADDR)
Note: When $FB appears in the body of the message, it is always repeated.
Input port: 9-pin female input port (DB-9F) on device
Output port: 9-pin male output port (DB-9M) on device (for serial linking to the input port on the next device. Up
to 16 devices can be linked in this manner.)
Device address means: 8-position DIP switch on device (valid device addresses are 1 through 250)
Baud Rate: 19.2 kilobaud
Character frame bits: 1 start bit, 8 data bits, 1 parity bit (even), and 1 stop bit
Cabling: Use standard RS-232 serial printer or modem cables.
Warning: NULL modem cables will not work!
Host or computer interface: Standard PC serial COM port (DB-9M, or DB-25M with adapter)
Note: Only three lines, Tx, Rx, and Ground, are used.
References
Rodgers, Robert L., “PA-422 Communications Interface and Device Control Language”, Journal of the Audio Engineering
Society, Vol. 38, Number 9, 1990 September, pp. 619-639.
Audio Engineering Society, Inc., “AES Recommended practice for sound-reinforcement systems-Communications interface
(PA-422)”, Journal of the Audio Engineering Society, Vol. 39, Number 9, 1991 September, pp. 664-679.
Standards documents: AES15-1991 (Audio Engineering Society)
ANSI S4.49-1991 (American National Standards Institute)