Electronics

model RS-G/2
Installation Instructions

The RS-G/2 converts switch closures, relay closures, or logic levels to serial commands for the Sony UVW-1200 and -1400 VTRs. The -G/2 has switch inputs for Stop, Play, Pause, and Eject.

All contact closures should be at least 20 milliseconds in length. There is no maximum closure limitation other than all GPI input scanning stops until all inputs have returned to open-contact conditions.

The RS-G/2 adapter simply plugs into the RS232 port of the Sony model UVW-1200 or UVW-1400 videotape recorder. The RS-G/2 derives its power from the RS232 port and no other power source is required.

Make sure that the UVW tape machine has its serial transmission rate set to 9600 baud. This is set from within the on-screen menu of the UVW tape machine. Should it be necessary to change the UVW's baud rate, it is recommend that the baud rate be double-checked to insure that the change was actually accepted by the tape machine. The Remote/Local switch on the UVW's front panel also needs to be in the Remote position in order for the serial interface to control the deck.

RS-G/2 Connections (25-pin D female)

Stop (pin 19)
A contact closure to ground causes the deck to Stop and unthread the tape.

Play (pin 6)
A contact closure to ground causes the deck to Play.

Pause (pin 18)
A contact closure to ground causes the deck to Pause (if already playing).

Eject (pin 25)
A contact closure to ground causes the deck to Eject the tape cassette.

Ground (pin 25)
This pin is the reference, or return path, for all of the above connections.

Addenda Electronics
PO Box 907
Monterey CA 93942-0907

Phone: 831 372 6205
Fax: 831 372 6192
Web: www.addenda.com