The M-976-2C2 MFC Transceiver is designed for R2 MF signaling transmit and receive levels used in China. It features direct A-Law PCM digital input, 2.048 Mb/s clocking, programmable forward/backward mode, programmable compelled/direct control, and operates with standard codecs for analog interfacing.
The M-976-2C2 MFC Transceiver is a dual‑channel device that provides MF signaling for China R2 MF systems. It supports both forward and backward modes, programmable forward/backward operation, and offers binary or 2‑of‑6 data formats. The transceiver can be configured via two configuration bytes written to an integral coprocessor port.
The manual details functional description, configuration options, pin assignments for DIP and PLCC packages, electrical characteristics, timing parameters, and mechanical dimensions. Ordering information for the 40‑pin DIP (M-976-2C2P) and 44‑pin PLCC (M-976-2C2PL) versions is also provided.
| Supply voltage (recommended) | 5 V |
|---|---|
| Supply current | 15 mA |
| Serial data clock | 2.048 MHz |
| Internal crystal frequency | 20.48 MHz |
| Reliability | 480 FITS |
| Flammability rating | UL 94 V‑0 |
| Number of channels | 2 |
The transceiver uses a 2.048 MHz serial‑port clock for data transmission and reception.
The device provides two independent transceiver channels.
It is offered in a 40‑pin plastic DIP (M-976-2C2P) and a 44‑pin PLCC (M-976-2C2PL).