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4x RS-232/RS-422/RS-485 Serial Port Module

Emerald-MM

Buy Diamond Systems\' Emerald-MM PC/104 Modules I/O Hardware

Advantages

  • 4 serial ports
  • Jumper selectable RS-232/422/485 on two ports
  • Dual 20-pin I/O headers (2 ports per header)
  • Flexible address and interrupt selection
  • Interrupt sharing - any no. of ports or boards
Request a quote for the Emerald-MM

Emerald-MM is a PC/104 format I/O module with 4 serial ports. The board is available in multiple versions with different combinations of protocols:

EMM-XT 2 ports configurable for RS-232, RS-422, or RS-485; 2 ports fixed RS-232
(standard configuration)
EMM-4M-XT 4 ports configurable for RS-232, RS-422, or RS-485
EMM-4232-XT 4 ports fixed in RS-232
EMM-4485-XT 4 ports configurable for RS-422 or RS-485 (special order)
EMM-1W-XT 4 ports fixed RS-232; port 1 has 1-Wire interface (special order)

Eight different I/O address combinations can be selected, and 10 different interrupt levels can be assigned to configure each port, allowing operation as COM1 through COM4 as well as many other settings. Two I/O headers are provided, with two serial ports on each header. The board operates on +5V only, eliminating the need for a +12V supply that is often required for serial port operation.

Emerald-MM is based on the 16C554 quad serial port IC. This device contains 4 identical sets of registers, one for each port, and is compatible with the standard PC serial port. Each port contains a 16-byte FIFO.

FileDescription
emm_spec.pdf Emerald-MM Spec Sheet
emm_man.pdf Emerald-MM Manual
Part NumberDescriptionStatus
EMM-4M-XT Emerald-MM 4-channel RS-232/422/485, extended temp. 0
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