System Design
XDM® -100
4-2
ECI Telecom Ltd. Proprietary
417006-2005-013-A02
4.1 Control and Communication
The XDM-100 control and communication functions are based on the fully
redundant Multiplexer Cross-connect and Control (MXC) card. The card supports
the following functions:
♦
Internal control and processing
♦
Communication with external equipment and management
♦
Network Element (NE) software and configuration backup
♦
Built-In Test (BIT)
4.1.1 Internal Control and Processing
The MXC card provides central control, alarm, maintenance, and communication
functions for the XDM-100 network element. It also communicates with the control
processors of the various cards using a master-slave control hierarchy.
The MXC can be protected with an identical MXC card. A faulty MXC (control
function) card does not affect traffic even if only a single card is installed. The
protecting MXC card contains the exact same database as the active MXC, and
operates as a full capability standby control and communication card. If the active
card fails, or a command from the EMS-XDM
®
element manager fails, the standby
MXC card becomes the active control unit.
4.1.2 Communication with External Equipment and
Management
The MXC card is also responsible for communication with other network elements
and with the different management stations.
The MXC communicates with the management and other SDH/SONET NEs
through the DCC channel processed by each SDH I/O Module (SIM) and
SDH/SONET Aggregate Module (SAM). It can also communicate with a desktop or
laptop PC-based craft terminal (eCraft) via a serial interface.
The MXC can provide multiple access to all overhead bytes in all incoming
SDH/SONET lines. In addition, it provides 64 Kbps and N x 64 Kbps trail capability
for transporting management data and DCC channels of external devices, as well as
for external DCN purposes.
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 ...