Telecommunications interface board in PCI form-factor

discontinued ! - replacement product: NPCIe-8560-8E1/T1

The NPCI-8280-4E1/T1/J1 is a telecommunications interface board in PCI form-factor. Based on the Motorola MPC8280 “PowerQuicc II” CPU the NPCI-8280-4E1/T1/J1 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 NPCI-8280-4E1/T1/J1 is a single size standard PCI short form card that can be plugged onto any PC offering a PCI extension slot that provides 3.3V signalling. Using the on-chip PCI bridge of the MPC8280, the NPCI-8280-4E1/T1/J1 is PCI Rev. 2.2 compatible, also tolerating 5V signalling by implementation of voltage-level FET switches. The MPC8280 PowerQUICC II processor provides computing resources up to 855 MIPS (450MHz). For less demanding applications the MPC8280 can be replaced by the pin-compatible MPC8265.

E1/T1/J1 Interfaces

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 on the front panel.
In addition to the four E1/T1 lines the NPCI-8280-4E1/T1/J1 offers a RS232 serial interface sharing a connector with the BDM/JTAG interface and a 10/100 Megabit/sec (10/100BaseT) Ethernet interface on a RJ45 connector to be used with a standard CAT5 UTP cable. Thus the NPCI-8280-4E1/T1/J1 is the generic platform for any implementation switching between the classic TDM streams as on E1/T1/J1 and any new generation of PC based packetized data applications. Moreover, the 100BaseT port can serve as a configuration and management port, i.e. for SNMP.

H.100 Interface

The onboard OKI CT812 H.110 bus controller offers access to the H.100 TDM (Time Division Multiplex) bus on a standard male header connector located at the upper edge of the card.
Equipped with up to 256MB SDRAM and either 16 or 32MB onboard erasable Flash-Memory the NPCI-8280-4E1/T1/J1 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 NPCI-8280-4E1/T1/J1 are BSPs for other operating systems such as VxWorks or Linux. Enhanced software development and effective debugging is supported by the onboard BDM/JTAG interface. N.A.T. offers standard protocols and customized firmware development.


Key features
Technical details
Block diagram
Order code
  • Freescale MPC8280 “PowerQuicc II” processor
  • 4 E1/T1 ports at the front panel
  • 100BaseT Ethernet port at the rear side
  • H.100/H.110 TDM bus controller


  • Motorola MPC8280 „PowerQuicc II“ at 333MHz or 450 MHz

PCI Interface and Compliance

  • MPC8280 on-chip PCI bridge, 32bit /33MHz, PCI Rev. 2.2, 3.3V signalling, 5V tolerant

H.100 Bus

  • OKI CT812, ECTF H.100 on male header connectors S5 and S4


  • 256MB SDRAM (PC-100, 64 bit) installed in a SODIMM slot

Flash PROM

  • 16 or 32MB 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 on shared connector with BDM/JTAG interface


  • 100BaseT Ethernet (IEEE 802.3) on standard RJ45 connector at rear edge of card

Operating System Support and Firmware

  • OK-1, VxWorks, LINUXSS7, ISDN and others

Power Consumption

  • 3.3V 0.85A typ. , 5V 0.55A typ.


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

Rev #
Date Last Modified
NPCI-8280-4E1_manual NPCI-8280-4E1/T1/J1 technical Reference Manual pdf 1277 KB 2.1 12-11-2010
NPCI-8280-4E1_datasheet NPCI-8280-4E1/T1/J1 full data sheet pdf 115 KB - 06-04-2004

NPCI-8280-4E1/T1/J1 block diagram

Product Code: NPCI-8280 - [Option]

-4E1/T1/J1 MPC8280 PowerQUICC II (333MHz), 64MB SDRAM, quad E1/T1/J1, H.100 -
-4E1-MON MPC8280 PowerQUICC II (333MHz), 64MB SDRAM, quad E1/T1/J1, H.100, 100BaseT, RS232, high-impedance monitoring for 2 E1 -
-4E1/T1/J1-xxx like NPCI-8280-4E1/T1/J1 but MPC8280 (450MHz) or MPC8265 (266MHz or 300MHz) or other memory size -


Rev #
Date Last Modified
NBSP-vxWorks-NPCI-8260-4E1 vxWorks BSP for NPCI-8280-4E1/T1/J1 in source form, includes basic drivers for the onboard devices, excluding Windriver target license  - -
NBSP-Linux-NPCI-8280-4E1 Linux BSB for the NPCI-8280-4E1/t1/J1 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  -  -