Communicating Solutions

Metrodata Limited

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The APX ECL CE Interface Module enables ECL interfaced non-ATM equipment, such as routers or satellite modems, to be converged with other services using the AP multi-service platform.

This ECL CE module offers a protocol transparent, point to point connection to another ECL CE module across an ATM network, leased line or transparent circuit (e.g. a satellite link).

This module performs adaptation of the incoming bit stream using unstructured AAL.1 to segment it into ATM cells. These ATM cells are transported across the AP infrastructure to the far end equipment. The far end AP, recovers the ATM cell stream, and from this re-assembles the ECL bit stream, again using unstructured AAL.1. End to end timing is automatically maintained through the use of adaptive clocking and jitter attenuation.

This module operates transparently to payload data supporting TDM or encrypted data as well as packet data. A DCE interface is provided which generates both the transmit and receive clocks for direct connection to a router. For connection to another DCE, for example a satellite modem, a cross-over cable is required. The master transmit clock is user configurable between 1kbps and 110Mbps. To support asymmetric operation the receive clock is also configurable between 1kbps and 110Mbps. The receive clock will adapt to within 100ppm of the nominal clock selection. Clocks are programmable to 1bps granularity.

Management and configuration of this module is achieved via the simple menu driven user interface. Extensive statistics and status information are available to the user interface as a diagnostic aid. Additionally SNMP Traps may be generated to indicate Link Up/Down. These modules can be "Hot Swapped" to ease maintenance, with replacement modules recovering immediately without further configuration.

This module has the following features:

  • standards compliant ECL interface
  • asymmetric operation at up to 110Mbps
  • can be used in any AP chassis
  • hot swap interface module, with configuration automatically loaded onto the replacement module

Module Specifications

Description
ECL CE Module
Ports 1

Physical Layer


Data Rate 110 Mbps (max)
Physical ECL, 50 way miniature AMP connector
Framing Unstructured
Clocking Adaptive
Alarms LOS, TXUR

ECL Signal Supported

Transmit Clock +/- (Output)
Transmit Data +/- (Input)
Receive Clock +/- (Output)
Receive Data +/- (Output)
Terminal Clock +/- (Input)
TA +/- (Input)
CA +/- (Output)

ATM Layer

Adaptation ITU I.363 AAL.1
Cell Rate 2660 cells/sec per Mbps of date rate
Bandwidth 1.128Mbps of cells per Mbps of data rate

Approvals

Conformance ITU I.363 AAL.1

MIB 2 RFC1213, RFC1215

EN60950, EN55022, EN50082
Environmental 0-40C, 0-95% RH Non Condensing

86-106kPa

Product

Order Code

ECL CE
80-07-343

AP Circuit Emulation Interface Modules

The following circuit emulation interface modules are available for the AP platform:

  • Quad T1 CE module - legacy services at 1.5Mbps Telecom rates, e.g. North American leased lines.
  • Quad E1 CE module - legacy services at 2Mbps Telecom rates, e.g. PBX, E1 G.703 2Mbps leased lines.
  • Dual E1 CE module - legacy services at 2Mbps Telecom rates, e.g. PBX, E1 G.703 2Mbps leased lines.
  • Dual E2 CE module - legacy services at 8Mbps Telecom rates, e.g. E2 G.703 8Mbps leased lines.
  • E3 CE module - legacy services at 34Mbps Telecom rates, e.g. E3 G.703 34Mbps leased lines.
  • DS3 CE module - legacy services at 45Mbps Telecom rates, e.g. DS3 G.703 45Mbps leased lines.
  • 10/100BaseT LAN CE module - transparently bridges 10/100BaseT LANs.
  • EIA530 CE module - serial data streams (of up to 20Mbps), e.g. router serial cards, encrypted data and satellite modems.
  • HSSI CE module - serial data streams (of up to 110Mbps), e.g. router serial cards, encrypted data and satellite modems.
  • ECL CE module - serial data streams (of up to 110Mbps), e.g. router serial cards, encrypted data and satellite modems.
  • ASI CE module - broadcast video data streams (of up to 52Mbps), e.g. video codecs, satellite modems and broadcast infrastruture.

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