Telecom / Infrastructure

NPMC-8E1/T1/J1

Overview and Purpose

The NPMC-8E1/T1/J1 is a telecommunications interface board in PMC (PCI mezzanine card) form factor. The module provides a highly scalable solution to telecom applications with the requirement of cost-effective E1/T1/J1 access.

Equipped with an onboard H.110/SCbus controller and eight primary rate E1, T1 or J1 interfaces the NPMC-8E1/T1/J1 provides an ideal and efficient interface for use with VME, PCI, CompactPCI and proprietary platforms.

PCI-Interface

The NPMC-8E1/T1/J1 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.The NPMC-8E1/T1/J1 is equipped with a PCI-to-local-bus bridge as the PCI interface. The local bus is directly connected to the onboard devices.The NPMC-8E1/T1/J1 is PCI Rev. 2.2 compatible (32bit).

Line Interfaces

The eight primary rate line interfaces, available by standard RJ45 connectors on the front panel, are implemented using the octal E1/T1/J1 framer 82P2288 from IDT.

All line interfaces can be individually configured to work as user or network side interface. Additionally all framing parameters, i.e. line codes etc., are settable via the PCI bus.

Backplane TDM Access

The onboard H.110 bus controller offers access to the backplane TDM bus supporting the full H.110 bus (PTMC) or the SC Bus subset on the PMC multi-purpose I/O connectors. It is implemented using an Altera FPGA and connects the backplane TDM bus with the internal TDM interfaces of the octal framer. Thus switching of timeslots between the different line interfaces as well as the TDM backplane is possible up to the full capacity of 4096 timeslots of the H.110 bus.

H.110 Bus (and subsets thereof)
H.110 (PTMC) and SCSA subset

Line Interfaces
Four RJ45 connectors, implementing the 8 E1/T1/J1 line interfaces

Indicator LEDs
4 software programmable LEDs at the front panel

Operating System Support
OK-1, VxWorks, LINUX

Power Consumption
3.3V 0.8A , 5V 0.1A

Environmental
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

Applications
- high density multiplexers, multi-service switches, edge routers and digital modems
- Frame Relay switches and access devices
- digital access cross-connect systems
- central office applications
- PBX and PABX applications
- gateways