Description
Product Overview
The TEWS TPMC871-10 is a single-width PMC interface module designed to integrate PCMCIA and CardBus expansion cards into embedded computer platforms using the PMC architecture. The module provides a bridge between a host PCI bus environment and external PC Card devices, allowing industrial computing systems to utilize legacy communication, storage, and specialty interface cards. The TEWS TPMC871-10 is built for embedded applications where maintaining compatibility with existing PC Card technology remains necessary.
Based on a 32-bit PMC design compliant with IEEE P1386.1, the TEWS TPMC871-10 connects through a PCI 2.1 interface and supports both 16-bit PCMCIA and 32-bit CardBus cards. The module includes a dedicated PC Card controller and power management circuitry capable of supplying 3.3 V or 5 V card power, along with programmable card voltages of 3.3 V, 5 V, or 12 V. This architecture allows embedded systems to communicate with PC Card devices while maintaining controlled power management and protection functions.
The TEWS TPMC871-10 is commonly applied in industrial computing platforms, test equipment, military/aerospace systems, and legacy embedded controllers where PC Card compatibility is still required. Replacement projects should verify the PMC carrier board, operating system driver support, card type, and front-panel mechanical arrangement before installation. To be completely transparent, this module is a specialized interface product; its value depends heavily on the surrounding embedded hardware platform and the specific PC Card device being integrated.
Product Introduction (Non-Templated)
Maintaining older embedded systems often requires preserving interfaces that newer platforms no longer provide. The TEWS TPMC871-10 gives PMC-based computers a direct path for continued use of PCMCIA and CardBus expansion hardware.
Supporting one front-accessible PC Card slot, hot insertion/removal capability, and both memory and I/O card operation, this module is suited for embedded maintenance, industrial computing upgrades, and legacy system support.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | TPMC871-10 |
| Manufacturer | TEWS Technologies |
| Product Type | PMC PC Card Interface Module |
| Form Factor | Single-width PMC |
| PMC Standard | IEEE P1386.1 |
| Host Interface | 32-bit PCI 2.1 |
| PCI Signaling Voltage | 3.3V and 5V |
| Board Dimensions | 149 mm × 74 mm |
| PC Card Slots | 1 Slot |
| PC Card Access | Front Panel Accessible |
| Supported Card Types | Type I and Type II PC Cards |
| PC Card Standards | PCMCIA 2.1 / JEIDA 4.2 |
| CardBus Support | 32-bit CardBus Cards |
| Power Supply Output | 3.3V / 5.0V PC Card power |
| Programming Voltage | 3.3V / 5.0V / 12V |
| Controller Compatibility | Intel 82365-compatible register mapping |
| Memory Windows | Up to 5 for PC Card 16 memory access |
| I/O Windows | Up to 2 for PC Card 16 access |
| Operating System Support | Windows XP/2000, Linux, VxWorks support available |
| Condition | New Surplus, Factory Sealed |
Related Products
- TEWS TPMC871-11 — Similar PC Card interface module without front-panel accessible PC Card access. Used when the embedded enclosure design does not require front insertion.
- TEWS TPMC871-50 — Variant providing front-panel access with the inserted PC Card positioned behind the front panel. Selected for different mechanical integration requirements.
- TEWS TPMC871-10R — RoHS-compliant version of the . Suitable for systems requiring updated material compliance.
- TEWS TPMC851 — Multifunction PMC I/O module providing analog input, analog output, digital I/O, and counter functions. Used for measurement and control applications rather than PC Card expansion.
- TEWS TPMC881-10 — PMC Ethernet interface module providing 10/100 Mbps network connectivity for embedded systems. Different application focus compared with the PC Card interface function of TPMC871.
- TEWS TPMC866 — PMC communication expansion modules used in embedded systems requiring additional industrial interfaces.
- TEWS TA104 — HD68/SCSI-3 cable accessory used with compatible TEWS PMC I/O modules requiring external signal connections.
- — VxWorks software support package for series integration in embedded operating environments.

TPMC871-10
Frequently Asked Questions (FAQ)
1. IsWS compatible with my existing PMC computer system?
he requires a compatible PMC carrier board with PCI bus support.
Verify:
- PMC slot availability
- PCI signaling voltage compatibility
- Host CPU board architecture
- Operating system driver support
- PC Card type being installed
Mechanical fit alone does not confirm electrical compatibility.
2. Can I hot-swap this?
The PC Card interface supports hot insertion and removal of compatible PC Cards, but the PMC module itself depends on the host system design.
Consider:
- PMC carrier hot-plug capability
- Host operating system behavior
- Application requirements
- Power management configuration
The embedded platform determines whether full module replacement can occur online.
3.he support firmware v3.1?
he is primarily a hardware interface module and does not operate like a programmable controller.
Software compatibility depends on:
- Device driver version
- Operating system environment
- PC Card device driver support
- Host computer configuration
The driver package and embedded application should be verified before deployment.
4. Will I lose my application data when replhe ?
he does not store the primary application software.
Data handling depends on:
- The installed PC Card device
- Host computer storage configuration
- Operating system settings
- Application software location
Replacing the interface module normally does not affect host-side application files.
5. How can I verify a New SurWS is authentic?
Recommended inspection steps:
- Confirm TEWS model marking
- fy part designation
- Inspect PMC connector condition
- Check PC Card slot condition
- Review available inspection records
New Surplus status should still be confirmed before installation in a critical embedded platform.
6he support an embedded system upgrade project?
Yes, when the upgrade retains PMC architecture and PC Card requirements.
Typical uses include:
- Extending service life of embedded computers
- Maintaining legacy communication cards
- Supporting specialized PC Card hardware
- Replacing damaged PMC interface boards
The complete host platform should be reviewed before selecting this module.
7. What should engineers check before commissihe ?
Key checks include:
- Confirm PMC carrier compatibility
- Verify PCI voltage signaling
- Install correct drivers
- Test PC Card recognition
- Confirm application communication
- Check power supply behavior
These checks help avoid integration problems during embedded system restoration.
