discontinued ! - replacement product: NPMC-8280-4E1/T1/J1


The NPMC-860-2E1/T1 is a telecommunications interface board in PMC (PCI mezzanine card) form factor. Based on the Motorola MPC860 "PowerQUICC" CPU the NPMC-860-2E1/T1 is targeted at telecom applications running protocols like ISDN, SS7, ATM, VoIP or proprietary protocols. Equipped with the onboard SCbus, the NPMC-860-2E1/T1 provides an ideal and cost-effective interface for use in the VME, PCI, CompactPCI and proprietary platforms.


The NPMC-860-2E1/T1 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-860-2E1/T1 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 (optionally 66 or 80 MHz) provides the capability of processing user data as well as signaling information.

The two primary rate line interfaces are implemented using the PMC Sierra framer PM6341 (E1) or PM4341 (T1), and are available on two standard RJ45 connectors on the front panel. The two framers can be individually configured to work as a user or network side interface.

In addition to the two E1/T1 lines the NPMC-860-2E1/T1 offers an RS232 serial interface on a mini-sub-D connector.

The onboard OKI CT812 H.110 bus controller offers access to the H.110 TDM (Time Division Multiplex) bus and its SCbus subset on the PMC P14 I/O connector.

The module is equipped with 4 or 16 MB 32-bit DRAM, 128, 256 or 512 KB 32-bit SRAM (opt) and 2 or 4 MB 8-bit onboard programmable Flash.


Communication protocols like ISDN, SS7 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-860-2E1/T1 are BSPs for other operating systems such as VxWorks and Linux.As well as standard protocols, N.A.T. also offers customized firmware development.

Enhanced software development and effective debugging is supported by the onboard BDM/JTAG interface.

Key features
Technical details
Block diagram
Order code
Relating the key features of the NPMC-860-2E1/T1 please consider the product description above!
  • Motorola MPC860 „PowerQUICC" at 50/66/80 MHz

PCI Interface and Compliance
  • Tundra QSPAN 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

  • two E1/T1 line interfaces on standard RJ45 connectors on the front panel, supplied by PMC Sierra PM6341 (E1) or the PM4341 (T1)



Serial I/O

  • RS-232 compatible

Operating System Support and Firmware


  • OK-1, VxWorks, LINUX
  • ISDN, SS7

Power Consumption

  • 3.3V 0.5A (typ.), 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. 2.1
  • P1386 and P1386.1/Draft 2.0


Rev #
Date Last Modified
NPMC-860-2E1_ds NPMC-860-2E1/T1 Data Sheet pdf 282 KB 2.0 23-01-2004
NPMC-860-2E1_man NPMC-860-2E/T1 Users Manual pdf 693 KB 1.9 12-11-2010

NPMC-860-2E1/T1 block diagram


Replacement Product: NPMC-8280-4E1/T1/J1


Rev #
Date Last Modified
NBSP-vxWorks-NPMC-860-2E1 vxWorks BSP for NPMC-860-2E1/T1 in source form, includes basic drivers for the onboard devices, excluding Windriver target license - -
OK1 V2 OK1 real time kernel for embedded applications, source or binary distribution, includes drivers for all onboard devices - -
NISDN-NET5-RTL ISDN Primary Rate Run-Time License for E1 interfaces, Switch Type ETSI, API (CAPI or FAPI), per target - -
NISDN-PNAM-RTL ISDN Primary Rate Run-Time License for T1 interfaces, Switch Type NI, 5ESS, DMS-100, API (CAPI or FAPI), per target - -