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mercator
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The Mercator PC/104 module integrates 2 PCI‐based 10/100 Ethernet ports with 24 user‐configurable digital I/O lines in the compact and rugged PC/104 format. This 2‐in‐1 combination of Ethernet and digital I/O can help lower the size and cost of your embedded system by eliminating one additional board from your PC/104 stack. General No. of controllers Protocol Maximum baud rate I/O headers The Ethernet ports utilize the National Semiconductor DP83815 Mac + Phy PCI controller chip and are NE2000 compatible. The 24 digital I/O lines are based on an 82C55 chip and feature programmable direction in 4‐ and 8‐bit groups. All I/O lines contain user‐configurable 10K Ohm pull‐up resistors for convenience. Extended temperature capability (‐40 to +85ºC) enables the board to operate in environments with extreme temperature swings, such as vehicles or outdoor installations. In addition, the board may be custom‐ configured with 0‐ohm resistors in place of jumper blocks for increased ruggedness in high‐vibration environments. Diamond Systems offers appropriate mating cables for your convenience. Cable no. C‐PRZ‐02 provides a panel mountable RJ‐45 connector for the Ethernet, and cable no. C‐26‐18 is a 26‐conductor ribbon cable for the digital I/O. Dimensions Power supply Operating temp. Operating humidity PC/104‐plus bus Digital I/O No. of I/O lines Direction Input Voltage Output Voltage Output current Pull‐up resistors

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Configuration Options Provision is made on the board for zero‐ohm resistors to replace jumpers to enable a hard‐wired configuration. • Digital I/O base address (8 address options with 3 jumpers) • Digital I/O configuration: pull‐up enabled or Disabled • PCI slot selection for each Ethernet port ORDERING INFORMATION Part No. Description MRC‐224‐XT PC/104+ Dual 10/100Mbps Ethernet Module + 24 Digital I/O ext. temp.

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