The Emerald-MM-Opto provides an integrated, rugged, and reliable solution for PC/104-expandable embedded systems requiring serial communications in demanding applications. It offers four optically isolated serial ports with RS-232, RS-422, and RS-485 protocols, as well as 24 digital I/O lines, all on a single board.
Optical isolation of 1000V DC or AC protects your embedded system from ground differentials or noise spikes that would damage non-isolated boards. Each port is isolated from the other ports as well as the system. Extended temperature capability (-40 to +85ºC) enables the board to operate in vehicles such as trains and buses without concern for temperature swings. These features enable Emerald-MM-Opto to provide reliable serial communications in harsh environments such as trains and buses.
A 16C554 quad serial port IC is used for the serial ports. This chip supports data transfer rates up to 115kbps and contains a 16-byte programmable FIFO buffer for each port to minimize processor overhead.
- 4 optically isolated serial ports
- Quad 10-pin I/O headers
- Isolation of 1000V AC or DC, port to port or port to system
- 150Ω termination resistors for RS-422/485
- 460.8kbps max data rate
- 128-byte transmit / receive FIFOs
- Auto-flow RS-485 control
- 24 digital I/O using 82C55
- +5V only power supply
- -40 to +85°C operation
- Proper hardware serial port with - works with any O/S!
- ROHS compliant
This board has a four 10 pin connectors (serial) and 26 pin connector (DIO) - DSC serial cable is C-DB9M-1, DSC DIO cable is C-26-18.
This board is just one of a range of high quality serial, analog and digital I/O boards from Diamond Systems - refer to our main website for other boards in their range.