Metropolitan Transmission Networks; Modular Architecture - Eci Telecom XDM-100 General Description Manual

System Characteristics

3.1 Metropolitan Transmission Networks

While transmission network needs vary from carrier to carrier, they all have one
common feature – the need for additional bandwidth to meet constantly increasing
telecommunication requirements. Designed to meet the demands of metropolitan
access markets, the XDM-100 is a reliable and scalable network platform that helps
providers minimize initial investment and adjust their growth to future demands.
The XDM-100:
Aggregates traffic arriving over Ethernet, E1, E3, DS-3 and STM-1/4 or
♦
OC-3/12 signals directly over STM-1/4/16 or OC-3/12/48
Can be configured as a Terminal Multiplexer (TM) with a single port for the
♦
line aggregates, as an ADM with two aggregate ports, or as a multi-ADM
and cross-connect
Features an optional I/O Tributary Protection Unit (TPU) for added hardware
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protection
Is suitable for indoor or outdoor installations
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Supports an extended operating temperature range up to 55° C
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CWDM support as a cost option, offering an economical solution for
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expanding bandwidth needs

3.2 Modular Architecture

The XDM-100 is a miniature STM-1/4/16 or OC-3/12/48 add/drop multiplexer
optimized especially for metro-access and cellular networks.
With the XDM-100 build-as-you-grow™ strategy, network operators are able to
provide new services as needed, expanding traffic capacity with minimum
investment.
The platform's architecture allows expansion according to market demand. Its
modular features include:
Add or replace plug-in modules. Replacements can be performed while the
♦
system is in operation, without affecting traffic in any way.
Optimization of aggregate module assignment. Two aggregate modules are
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associated with each Main Cross-connect and Control (MXC) card. Each
module supports a bandwidth of up to 2.5 Gbps.
Optimization of tributary I/O slot assignment. Eight slots can accommodate
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different I/O modules (PIM, SIM, and EIS-M). (See Chapter 4, System
Design, for more details.)
In-service scalability of SDH/SONET links. An optical connection operating
♦
at a specific STM/OC rate can be upgraded from STM-1 to STM-4/16 or
from OC-3 to OC-12/48.
3-2 ECI Telecom Ltd. Proprietary
XDM® -100
417006-2005-013-A02