XDM® -100
System Characteristics
417006-2005-013-A02
ECI Telecom Ltd. Proprietary
3-5
3.4 MXC Functionality
The XDM-100 Main Cross-Connect and Control (MXC) card performs all the
XDM-100 cross-connect, timing, multiplexing and power functions, including:
♦
Multiplexer control and traffic processing. The processor controls all
multiplexer functions.
♦
Input power filtering (INF) and DC/DC conversion. Each card accepts two
power input sources, which are EMC filtered, and creates the operating
voltages.
♦
SDH/SONET traffic cross-connection (via a 192x192 STM-1/OC-3 switch).
The switch handles aggregate and tributary interface traffic. The actual used
capacity is 128 x 128 STM-1/OC-3 equivalents.
♦
Multiplexer timing unit. A full featured XDM TMU.
♦
DCC routing and handling of 32 DCC channels.
♦
Each MXC card also has a nonvolatile flash memory (NVM).
For reliability purposes, a redundant pair of main cross-connect control cards
(MXC-A and MXC-B) may be configured, with A being the active card and B the
protection card.
4/4/3/1
1
128 STM-1 equivalents
1
128 STM-1 equivalents
Figure
3-2: XDM-100 cross-connect scheme
In the redundant configuration, MXC-A and MXC-B cards operate in parallel.
Each
XDM-100 matrix permits full nonblocking connectivity at all VC or STS levels. The
matrices are connected to all I/O modules, providing 1.25 Gbps capacity to each of
them.
The XDM-100 provides several types of cross-connects in compliance with
applicable ITU-T and Telcordia standards. These include broadband, wideband, and
integrated broadband/wideband cross-connects.
The XDM-100 also supports a non-redundant configuration, which activates a single
matrix and a bridge card (MXC-BR). In this configuration, the protection trails are
routed via the MXC-BR, which replaces the MXC-B, to additional parts of the
single matrix. The MXC-BR bridges traffic from I/O modules to the dedicated
traffic buses located in the MXC-A, with a total capacity of 10 Gbps.
Summary of Contents for XDM-100
Page 1: ...XDM 100 Miniature MSPP for Metro Access and Cellular Networks General Description ...
Page 3: ...XDM 100 ...
Page 8: ...Contents XDM 100 iv ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 10: ...Contents XDM 100 vi ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 12: ...Contents XDM 100 viii ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 16: ...Introduction XDM 100 1 4 ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 22: ...Applications XDM 100 2 6 ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 30: ...System Characteristics XDM 100 3 8 ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 44: ...System Design XDM 100 4 14 ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 82: ...XDM 100H XDM 100 8 8 ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 94: ...Glossary XDM 100 B 6 ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...
Page 98: ...Index XDM 100 I 4 ECI Telecom Ltd Proprietary 417006 2005 013 A02 ...