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Diamond Systems Corporation

Diamond Systems Mercator

PC/104-Plus Expansion Module with Ethernet and Digital I/O

Extended Temperature Operation, Fully PC/104+ Compliant

 
Diamond Systems Mercator
  
  • 2 PCI-based 10/100 Ethernet ports
  • RJ-45 and pin header connections
  • Ethernet activity LEDs
  • 24 digital I/O lines on ISA bus
  • -40 to +85°C operation
  • Fully PC/104-Plus compliant
  • Multiple assembly options



Datasheet/Manual:

Diamond Systems Mercator datasheet in PDF format Datasheet in PDF format
Diamond Systems Mercator datasheet in PDF format Manual in PDF format
 

Introduction

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.

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.

A low-cost version with one Ethernet port and no digital I/O is also available as model no. MRC-100-XT.

Configuration Options

Several features are configurable using either a dual-row 2mm size jumper block or a switch. 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

I/O Options

Two connection options are provided for the Ethernet ports. To ensure proper operation, only one connection may be used for each Ethernet port.

Software

The industry-leading Universal Driver software is available free with all Diamond Systems I/O boards. Universal Driver provides programming support for the most popular embedded operating systems, including Linux, Windows 95/98/NT/2000/XP/XP embedded, Windows CE.NET, QNX, VxWorks, and DOS. Example programs are provided for each function and each operating system to help you get started with your application development quickly.
 
 

Specification
Ethernet
No. of Ethernet controllers:

1 (MRC-100)
2 (MRC-224)

Protocol:

IEEE 802.3 10Base-T and 100Base-TX compatible

Maximum data rate:

100Mbps
Digital I/O
No. of I/O lines:

24
Direction Programmable:

Ports A and B individually programmable for all input or all output.
Port C programmable in 4-bit groups for input or output

Input voltage:

Low: -0.5V min, 0.8V max
High: 2.0V min, 5.5V max

Output voltage:

Low 0.0V min, 0.4V max
High 3.0V min, Vcc - 0.4V max

Output current:

2.5mA max, each line

Pull-up resistors:

10KΩ pull-up
General
I/O headers:

Ethernet ports: RJ-45 female sockets and 6-pin straight male headers
Digital I/O: 26-pin (2x13) .025" square pin header on .1" centres
Mating cables:

Ethernet ports:

  • RJ-45 sockets: Standard CAT5 cable
  • Pin headers: Diamond Systems cable no. C-PRZ-02

Digital I/O:

  • Diamond Systems cable no. C-26-18
Dimensions:

3.55" x 3.775" (PC/104 standard)

Power supply:

+5VDC 10%

Operating temperature:

-40 to +85ºC

Operating humidity:

5% to 95% noncondensing

PC/104 bus:

Both PC/104 and PC/104+ stackthrough headers installed

ROHS Status:

This product is currently not lead free/ROHS compliant.

Ordering Details:
Board:

MRC-100-XT Single Port 10/100Mbps Ethernet PC/104-Plus Module
MRC-224-XT Dual Port 10/100Mbps Ethernet + 24 Digital I/O PC/104-Plus Module

As above, this product is not available in a lead free version - conversion may be done at a later date.

Please note that boards are supplied with no cables, software or manuals.
If you require the free CD please ensure this is on your purchase order.

Accessories:

SW-DSCUD Free software/manual CD (for all Diamond Systems cards)
C-PRZ-02 Ethernet Cable, 12" length, 6 pin header to RJ-45 connector
C-26-18 Ribbon cable, dual 26-pin connectors, 18 inches
Further Information:

Want further information or pricing on this product? Either fill out our feedback form or contact us for further information.
 
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