Contec Americas Inc. / Serial
COM-4C-LPE RS-232C Serial I/O board Low Profile size 4ch type for PCI Express
Contact Sales Department for Pricing New COM-4C-LPE 4 RS-232C Ports 921,600 bps Low Profile / Standard 128-byte FIFO Standard COM Ports VCCI-A · FCC-A · CE · UKCALow Profile PCI Express 4‑channel RS‑232C serial I/O board. Supports up...
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Low Profile PCI Express 4‑channel RS‑232C serial I/O board. Supports up to 921,600 bps with 128‑byte FIFO buffers per channel. Operates as standard Windows/Linux COM ports. Includes standard size bracket for versatile installation.
High‑Density RS‑232C
in Low Profile Form Factor
The COM‑4C‑LPE provides four RS‑232C serial ports on a Low Profile PCI Express board. It supports data rates up to 921,600 bps and includes 128‑byte FIFO buffers for transmit and receive per channel. The board operates as standard Windows/Linux COM ports using the included COM‑DRV driver.
- 4 RS-232C ports
- 921,600 bps max baud rate
- 128‑byte FIFO (Tx/Rx per channel)
- Asynchronous serial transfer
- RTS/CTS/DTR/DSR software control
- Standard Windows/Linux COM ports
- Low Profile / standard slot compatible
- Includes standard size bracket
- Optional conversion cable available
- VCCI-A · FCC-A · CE · UKCA
Used as standard COM ports — with COM‑DRV driver, works like built‑in COM ports using Win32 API (DCB structures) or Linux system calls. Supports .NET SerialPort class and PySerial.
Built for Versatile Connectivity
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High speed — supports baud rates from 30 to 921,600 bps (depending on board revision).
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FIFO buffers — 128 bytes each for transmit and receive per channel; reduces CPU load during high‑speed communication.
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Software control — RTS, CTS, DTR, DSR lines can be controlled and monitored via software.
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High density — 4 ports on a single board; up to 16 boards per system (64 ports).
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Low Profile / standard — supports both form factors with interchangeable bracket (standard bracket included).
Full Specifications
| Item | Specification |
|---|---|
| Model | COM‑4C‑LPE |
| Number of channels | 4 |
| Interface type | RS‑232C |
| Transfer method | Asynchronous serial transfer |
| Baud rate | 30 – 921,600 bps *1*3 (varies by board revision) |
| Data length | 5, 6, 7, 8 bits |
| Stop bits | 1, 1.5, 2 bits |
| Parity check | Even, Odd, Non‑parity |
| Controller chip | 162850 or equivalent (128‑byte FIFO per channel) |
| Connecting distance | 15 m (Typ.) |
| Interrupt requests | 1 level used |
| I/O address | Any 32‑byte boundary |
| Power consumption | 3.3 VDC, 350 mA max |
| Bus interface | PCI Express Base Spec Rev. 1.0a x1 |
| Connector | 44‑pin (on‑board) / optional conversion cable |
| Dimensions (L × H) | 121.69 × 67.90 mm (Low Profile) |
| Weight | 60 g |
| Operating temperature | 0‑50°C |
| Operating humidity | 10‑90% RH (no condensation) |
| Certifications | VCCI Class A, CE (EMC Class A, RoHS), UKCA |
Connector & Cabling
The board uses a 44‑pin on‑board connector. An optional conversion cable (PCE44/9P2S) is available to split into four standard 9‑pin D‑SUB male connectors. Alternatively, custom cables can be made for direct connection.
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Optional conversion cable — PCE44/9P2S (44‑pin to 9‑pin D‑SUB ×4).
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Signal lines — TD, RD, RTS, CTS, DTR, DSR, DCD, SG, RI.
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Cable types — use straight cable for modem connection, crossed (null modem) for PC‑to‑PC connection.
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Board ID — set via SW1 to distinguish multiple boards.
Certifications & Compliance
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VCCI Class A — Japanese EMC for commercial/industrial environments.
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FCC Class A — U.S. emissions compliance for industrial use.
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CE (EMC Directive Class A + RoHS) — European conformity.
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UKCA — UK conformity assessed.
Optional Accessories
| Part Number | Description |
|---|---|
| PCE44/9P2S | Conversion cable, 44‑pin to 9‑pin D‑SUB ×4 |
Software & Packing List
| Item | Description |
|---|---|
| Windows driver | COM‑DRV(WDM) – standard COM port emulation; supports DCB, .NET SerialPort, PySerial; sample programs in C#, VB.NET, VC++, Python |
| Linux driver | COM‑DRV(LNX) – standard TTY driver; supports PySerial; gcc (C/C++) and Python samples |
| Packing List | Product ×1, standard size bracket ×1, "Please read the following" document |
Ready to add RS‑232C serial ports?
The COM‑4C‑LPE is available through Contec Americas on a quote basis. Contact our sales team for volume pricing, cable assemblies, and integration support.
Taxes and shipping calculated at checkout.
Lead times may vary for products shipped from Japan:
Products sourced from Japan may take between 4 to 5 weeks to arrive. We will provide updated shipping timelines upon order confirmation.
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