Industrial Broadband Powerline Communications ModemMaxim introduced the MAX2982, the first broadband, HomePlug 1.0-compliant powerline communications transceiver for harsh industrial environments. The MAX2982 is an easy-to-use industrial broadband powerline communications solution for automation and control, remote monitoring, energy management, wireless base-station control and monitoring, and local area networking (LANs). The MAX2982 is highly integrated and offers significant design flexibility. An enhanced “Robust” mode provides a receiver that operates at -1dB signal-to-noise (SNR) to ensure reliable communications in the presence of noise. The device operates from -40°C to +105°C and is qualified under AEC-Q100-Rev-G for harsh industrial applications.

The MAX2982 powerline transceiver utilizes state-of-the-art CMOS design techniques to deliver the highest level of performance, flexibility, and operational temperature range at reduced cost. This highly integrated design combines the media access control (MAC) and the Physical (PHY) layers in a single device. The MAX2982 digital baseband and its companion device, the MAX2981 analog front-end (AFE) with integrated line driver, offer a complete high-speed powerline communication solution fully compliant with HomePlug 1.0 Powerline Alliance Specification.

Industry Needed Reliable Cable Communications

The MAX2982 offers reliable broadband communication for industrial environments. The PHY layer comprises an 84-carrier OFDM modulation engine and forward error correcting (FEC) blocks. The OFDM engine can modulate the signals in one of four modes of operation: DBPSK, DQPSK (1/2 rate FEC), DQPSK (3/4 rate FEC), and ROBO. The MAX2982 offers -1dB SNR performance in ROBO mode, a robust mode of operation, to maintain communication over harsh industrial line conditions. Additionally, advanced narrow-band interference rejection circuitry provides immunity from jammer signals.

Single-Cable Power & Control with Broadband Powerline Communications on AC/DC Lines

The MAX2982 is optimized for high-performance, real-time control, and automation applications. The device’s low-latency 333µs response time and 14Mbps data rate support high-bandwidth data from large arrays of automated equipment in a single network. With its 512-address bridge table and point-to-multipoint addressing, the MAX2982 records, monitors, and controls hundreds of HomePlug modems in a network. This technology eliminates the traditional need for long, dedicated communication cables. Optional firmware delivers additional noise immunity to improve the communication range even further. The 56-bit DES/triple-DES (3DES) encryption with key management ensures secure communication.

Open Architecture Facilitates Optimized Applications

The MAX2982 is fully compliant with HomePlug 1.0 and its programmable application interface enables market-optimized firmware. The MAX2982 supports an IEEE 802.3 standard Media Independent Interface (MII), Reduced Media Independent Interface (RMII), UART, USB, JTAG, synchronous FIFO supporting a glue-free interface to microcontrollers, and 10/100 Ethernet MAC. These interfaces and standards compliance simplify configuration of monitoring and control networks. Fast response time and an integrated temperature sensor make the MAX2982 an excellent solution for real-time control over power lines.