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


The NPMC-8260-4E1/T1 is a telecommunications interface board in PMC (PCI mezzanine card) form-factor. Based on the Motorola MPC8260 "PowerQuicc II" CPU the NPMC-8260-4E1/T1 is targeted at telecom applications with a need for a powerful and versatile platform, such as applications using SS7, ISDN, ATM, VoP or any combination of these protocols.


The NPMC-8260-4E1/T1 is a P1386.1/Draft 2.0 compatible PMC module, that can be plugged onto any VME, cPCI or other carrier board offering a PMC extension slot. Using the Tundra PowerSpan PCI-to-Qbus bridge, the NPMC-8260-4E1/T1 is PCI Rev. 2.2 compatible and capable of running in both 32 and 64 bit PCI bus architectures.

The four primary rate line interfaces (E1/T1/J1) are driven using Infineon PEB22554 "Quad Falc" framer, and are available on two standard RJ-45 connectors at the front panel.

In addition to the four E1/T1 lines the NPMC-8260-4E1/T1 offers either an RS232 serial interface or a 100 Megabit/sec (100BaseT) Ethernet interface on an RJ45 connector to be used with a standard CAT5 UTP cable. Thus the NPMC-8260-4E1/T1 is the generic platform for any implementation switching between the classic TDM streams as on E1/T1/J1 and the new generation of packetized data applications running on Ethernet.

Moreover, the 100BaseT port can serve as a configuration and management port, i.e. for SNMP.

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

Equipped with up to 128MB DRAM, 256KB fast SRAM and either 4 or 8MB onboard erasable Flash-Memory the NPMC-8260-4E1/T1 is optimized to meet the performance and memory requirements of state-of-the art communication protocols and applications.


Communication protocols like SS7, ISDN, etc., 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-8260-4E1/T1 are BSPs for other operating systems such as VxWorks.

As well as standard protocols N.A.T. 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-8260-4E1/T1 please consider the product description above!
  • Motorola MPC8260 „PowerQuicc II" at 150-250 MHz

PCI Interface and Compliance
  • Tundra PowerSpan, both 32bit (33MHz) or 64 bit (66MHz)
  • PCI Rev. 2.2

H.110 Bus
  • OKI CT812, H.110 on PMC P14 connector

  • 32-128MB SDRAM (PC-100, 64 bit) installed in a SODIMM slot

  • 256KB fast synchronous SRAM (32 bit)

Flash PROM
  • 4-16MB Flash PROM (32bit)

Line Interface

  • four primary rate E1/T1/J1 lines (I.431) on standard RJ45 connectors at front panel supplied by Infineon PEB22554 "QuadFalc"

Serial I/O
  • RS232 compatible at front panel

  • 100BaseT Ethernet (IEEE 802.3) on standard RJ45 connector at front panel

Indicator LEDs
  • 6 software programmable LEDs at the front panel

Operating System Support and Firmware
  • OK-1, VxWorks, LINUX
  • SS7, ISDN and others

Power Consumption
  • 3.3V 2.0A (max.), 5.5V 0.3A

  • Temperature (operating): 0ºC to +60ºC with forced air cooling,
  • Temperature (storage): -40ºC to +85ºC
  • Relative Humidity: 10% to 90% at +55ºC (non-condensing)

Standard Compliance

  • P1386 and P1386.1/Draft 2.0

Rev #
Date Last Modified
NPMC-8260-4E1_man NPMC-8260-4E1/T1 technical Reference Manual pdf 1695 KB 1.15 04-10-2004
NPMC-8260-4E1_ds NPMC-8260-4E1/T1 full data sheet pdf 431 KB 1.0 15-08-2002

NPMC-8260-4E1/T1 block diagram


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


Rev #
Date Last Modified
NBSP-vxWorks-NPMC-8260-4E1 vxWorks BSP for NPMC-8260-4E1 in source form, includes basic drivers for the onboard devices, excluding Windriver target license - -
NBSP-Linux-NPMC-8260-4E1 Linux BSB for the NPMC-8260-4E1 in source form - -
OK1 V2 OK1 real time kernel for embedded applications, source or binary distribution, includes drivers for all onboard devices - -
NSS7-RTL SS7 Run Time target license for primary rate communication interfaces, Options: MTP2,MTP3 and ISUP - -
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 - -