XDM® -100
System Design
417006-2005-013-A02
ECI Telecom Ltd. Proprietary
4-13
4.7 Tributary Protection Unit
The XDM-100 provides hardware protection to the electrical tributary modules with
the Tributary Protection Unit (TPU). The TPU is an expansion shelf plugged on the
top of the XDM-100. Connected to the control and power of the XDM-100 shelf, it
becomes an integral part of the platform.
The TPU accommodates Tributary Protection Modules (TPMs) supporting 1:1 and
1:3 protection schemes per each type of module. Up to four groups of 1:1 protected
electrical modules can be defined. Each TPM is connected to a pair of PIM2_21,
PIM345_3, SIM1_4/E (or SIM1_4/OE in the future) modules by traffic cables. Up
to two groups of 1:3 protected electrical modules can also be provided. Users may
define any combination of 1:1 and 1:3 protection schemes. (For additional details,
see Chapter 7, Physical Description.)
The TPMs include protection-switching relays, which are activated by the active
MXC upon detection of a faulty module. One module is always in standby mode to
protect the active modules. In case of a failure in the active module, the standby
module becomes active and replaces the faulty one in less than two seconds, without
having to disconnect any cables.
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 ...