Model RTX-12A - 1200 Baud (Bell 202) Data / Telemetry Modem. Plugs directly into a standard 25-pin serial port.
Model
RTX-12OEM
- 1200 Baud (Bell 202) Data / Telemetry Modem. This is an un-enclosed
circuit board that is electrically and functionally identical to the RTX-12A.