The BL2500 Coyote single-board computer gives OEM designers extremely low-cost embedded control for high-volume applications such as product control, factory equipment control, access control, HVAC, and vending machines. Two standard models: one with Ethernet, one without, feature the Rabbit 3000 microprocessor at 29.4 MHz, with 256K Flash and 128K SRAM (standard).

Customized BL2500 models (OEM2500 versions) can be manufactured to user-specified configurations in volumes of 500 pcs. Customization helps OEMs realize an extremely low-cost, yet maintain a reliable and rugged industrial solution. Our pin-compatible RabbitCore modules provide multiple configurations on the BL2500 Coyote, including Ethernet, non-Ethernet, and memory options.

Onboard Features
The Coyote's compact board size of 3.95" x 3.95" (100 x 100 mm) is easily mountable in standard 100 mm DIN rail trays. External connections via polarized locking industry standard Molex type connectors enable rapid assembly with wire harnesses. These connectors also provide dependable cable harness connectivity to I/O. Future expansion boards (including A/D, D/A, digital I/O, and keypad/display) will be available which interface via the two multiplexed SPI RS-422 ports.

The Coyote provides 24 rugged digital I/O (plus 1 A/D input and 2 D/A outputs) along with 4 LEDs (3 yellow and 1 extra bright red). The 8 industrialized open-collector sinking outputs can easily switch up to 200 mA of inductive loads such as relays and solenoids with protection from inductive kickback. Of the 16 digital inputs, 15 are fully protected to ±36 V.

Six serial ports are included to support external communication. Two ports are connected to standard full-duplex RS-232 circuitry. One port is connected to rugged RS-485 differential pair signaling circuitry-allowing for industry standard multi-drop RS-485 networks. One port, designed to allow serial expansion, is multiplexed through two very high-speed (>1Mbit/sec capability) SPI ports with each line going through RS-422 differential pair signaling. The SPI ports connect to RJ-45 connectors (accepting standard category 5 cabling) for ease of connectivity. One serial port is a 3.3 V CMOS level port that can either be asynchronous or clocked and one CMOS-compatible serial port is dedicated to programming/debugging.

The optional Ethernet interface (10 Mbps or 10/100 Mbps) allows easy connection to local networks or the Internet. Powerful software allows TCP/IP communication including e-mail and serving of web pages. Remote program development and loading via a network or the Internet is supported using appropriate accessory hardware

Programming the Coyote
Programs are developed using Z-World's industry-proven Dynamic C® software development system. An extensive library of drivers and sample programs is provided, along with royalty-free TCP/IP stack with source. Systems with built-in 10Base-T or 10/100Base-T Ethernet can be directly controlled and monitored across networks or the Internet, and can also open sockets to remote devices, serve Web pages, or send e-mail. All Coyote models can be programmed and debugged over Ethernet/Internet using appropriate accessory hardware.