Interface board in PMC (PCI mezzanine card) form factor

The NPMC-860-4S0 is a telecommunications interface board in PMC (PCI mezzanine card) form factor. Based on the Motorola MPC860 "PowerQUICC" CPU the NPMC-860-4S0 is targeted at telecom applications using Basic Rate ISDN interfaces.

Equipped with the onboard SCbus, the NPMC-860-4S0 provides an ideal and cost-effective interface for use in the VME, PCI, CompactPCI and proprietary environments.


The NPMC-860-4S0 is a P1386.1/ Draft 2.4 compatible PMC module that can be plugged onto any VME, cPCI or other carrier board offering a PMC extension slot. Using the Tundra QSPAN II PCI-to-QBUS bridge, the NPMC-860-4S0 is PCI Rev 2.2 compatible and capable of running in 32 bit PCI architectures.

The Embedded PowerPC based PowerQUICC MPC860 processor at 50 MHz (optional 66 or 80 MHz) provides the capability of processing user data as well as signaling information.

The four BRI S/T (S0) line interfaces are driven using the Motorola MC145574 ISDN S/T-Interface Tranceiver and are available on four standard RJ45 connectors on the front panel. The four framers can be individually configured to work as a user or network side interface. The line interfaces can be operated in either Point-To-Point or Point-to-Multipoint mode.

The NPMC-860-4S0 is equipped with 4 or 16 MB 32-bit DRAM and 2 or 4 MB 8-bit on-board programmable Flash.

The oboard OKI CT812 H.110 controller provides SCbus functionality on the PMC P14 I/O connector. Thus, the CT812 can switch any timeslot to and from any of the line interfaces for either CPU or SCbus access, or even just between the line interfaces.


Communications protocols like ISDN, X.25, X.31 are available as binary firmware images as well as operating system independent source code licenses. By default these firmware protocols run on the well- proven N.A.T. real-time kernel OK-1 which is optionally available in source code. Also available for the NPMC-860-4S0 are BSPs for other operating systems such as VxWorks and LINUX.

As well as standard protocols N.A.T. offers customized firmware development. Enhanced software development and effective debugging is supported by the onboard BDM interface.

Key features
Technical details
Block diagram
Order code
Relating the key features of the NPMC-860-4S0 please consider the product description above!
  • Motorola MPC860 „PowerQUICC II" at 50/66/80 MHz

PCI Interface and Compliance

  • QSPAN II PCI to QBUS bridge (33MHz, 32bit ), PCI Rev. 2.2


  • OKI CT812, SCbus on PMC P14 connector


  • 4 or 16 MB 32-bit EDO DRAM

Fast SRAM (opt)

  • 512 KB or 1MB 32-bit SRAM


  • 2 or 4 MB 8-bit Flash, on-board programmable
  Line Interface
  • 4 BRI S/T (S0) line interfaces on standard RJ45 connectors on the front panel supplied by Motorola MC145574

Operating System Support and Firmware
  • OK-1, VxWorks, ISDN, X.25 and others

Power Consumption
  • 3.3V 0.5A (typ.), 5.5V 0.8A (typ.)

  • Temperature (operating): 0ºC to +50ºC
  • Temperature (storage): -40ºC to +85ºC
  • Relative Humidity: 5% to 95%
  • (non-condensing)

Standard Compliance
  • PCI Rev. 2.2
  • P1386 and P1386.1/Draft 2.4
Rev #
Date Last Modified
NPMC-860-4S0_manual NPMC-860-4S0 technical Reference Manual pdf 525 KB 1.6 12-11-2010
NPMC-860-4S0_datasheet NPMC-860-4S0 full data sheet pdf 210 KB 1.0 29-10-2003

NPMC-860-4S0 block diagram

Product Code: NPMC-860-4S0

- MPC860 PowerQUICC I (40MHz), quad ISDN BRI (S/T), SCSA -


Rev #
Date Last Modified
NBSP-vxWorks-NPMC-860-4S0 vxWorks BSP for NPMC-860-4S0 in source form, includes basic drivers for the onboard devices, excluding Windriver target license - -
NISDN-NET3-RTL ISDN Basic Rate Run-Time License for N.A.T. BRI (S/T) hardware, Switch Type ETSI, API (CAPI or FAPI), per target - -
NTSP-NPMC-860-4S0 Telecommunication Support Package (all drivers for telecom chipset in source form) for NPMC-860-4S0 - -