Key facts
- Manuals
- 1
- Languages
- ZH
- Last added
- 2000-01-01
Featured MOD950 manuals
Jiemai MOD950 Wireless Modem User Manual
The MOD950 is a wireless modem designed to work with generic FM radios. It provides a radio connector and a computer connector, both 9‑pin, and defines the signal levels and control signals required for proper operation. The manual includes diagrams of the modem dimensions, connector locations, and wiring relationships.
Port definitions are detailed for the radio side (audio input, modulation output, PTT control, ground, and 12 V power) and the computer side (ground, serial TX/RX, DTR, DSR, and signal ground). Adjustment procedures for audio level (using potentiometer W1) and frequency deviation (using potentiometer W2) are also described. This manual is written in Chinese.
Covers: Radio Port Definition · Computer Port Definition · Audio Level Adjustment · Frequency Deviation Adjustment · Power Supply Requirements · PTT Control Signal
Latest MOD950 manuals
Jiemai MOD950 Wireless Modem User Manual
User Manual 3 pages · 111 KB · ZHThe Jiemai MOD950 Wireless Modem User Manual explains connection methods, port definitions, level adjustment, and communication protocol with a radio and…
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in MOD950 manuals
What is the purpose of the DTR pin on the computer side?
The DTR pin indicates the type of serial data: logic 0 for command data and logic 1 for wireless transmission data; it also shows whether the host is ready to receive data.
What voltage does the MOD950 require for power?
The modem is powered from a 12 V source with a voltage range of +12 V to –8 V.