The DS-MPE-SER4OPT is a rugged, low cost 4‑port opto‑isolated PCIe MiniCard serial module that is ideal for serial I/O expansion in embedded and OEM applications.
The DS-MPE-SER4OPT offers 4x RS-232/RS-485 opto-isolated serial ports in a PCIe MiniCard form factor. Each port offers 16C550 compatibility and ultra-deep 256-byte TX/RX FIFOs. Maximum data rates are 1Mbps in RS-232 mode and 10Mbps in RS-485 mode. The board is available preconfigured for 4 RS-232 ports, 4 RS-485 ports, or a combination of 2 RS-232 and 2 RS-485 ports. I/O signals are provided on two miniature latching connectors, with 2 ports per connector.
Each pair of serial ports on the DS-MPE-SER4OPT offers up to 500V isolation from the system ground. Optoisolation increases reliability in applications with long cable runs, where a difference in ground potential can cause significant ground loop currents, damaging non-isolated boards and equipment. Isolation on this miniature board is achieved through a combination of highly integrated isolated power + data components, careful component placement and layout, and a safety-enhancing insulation film on the bottom side, which prevents accidental contact with components on the carrier board.
Extended temperature capability (-40°C to +85°C) 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.
The DS-MPE-SER4OPT product comes with the 4-port PCIe MiniCard opto-isolated serial module, the CK-SER4M cable kit, and a hardware kit with jumpers and screws.
Technical specifications | |
Number of serial ports | 4 |
Protocols | RS-232/485 on each port, configured in pairs |
Maximum baud rate |
RS-232: 1Mbps RS-485: 10Mbps |
Termination | RS-485 jumper selectable |
UARTs | Quad XR17V354 with PCIe interface |
FIFO | 256-byte TX/RX |
Transceiver | SP336 multi-mode |
Isolation | +/-500V input/output |
Input power | +3.3VDC +/-5% |
Power consumption | 0.462W @ 3.3V |
Software drivers |
Windows 7, XP, Vista, 2000 Linux 2.6.16, 2.6.27, 2.6.31, 2.6.32 |
Form Factor | PCIe MiniCard full size |
Dimensions | 50.95 x 30mm (2 x 1.18") |
Weight | 8.5g (0.3oz) |
Environmental and physical specifications |
|
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Operating temperature | -40°C to +85°C |
Operating humidity | 5% to 95% noncondensing |
Rohs | Compliant |
Model | Description |
DS-MPE-OPT4232 | 4 Port RS-232 PCIe MiniCard With Optoisolation |
DS-MPE-OPT4485 | 4 Port RS-485 PCIe MiniCard With Optoisolation |
DS‑MPE‑OPT4M22 | 2 RS-232 + 2 RS-485 PCIe Mini With Optoisolation |
CK-SER4M | Cable Kit, DS-MPE-SER4M PCIe MiniCard Serial Port Module |