Figure 61. Eps Architecture: Matrix Failures; Figure 62. Eps Architecture: Loa Failures - Alcatel 1850 TSS-320 Technical Handbook

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Lower order adapter cards (not available in current release) can be N+1 EPS protected. The protection
is triggered by the detected LOA failures, or can be forced via manual command. The EPS protection has
the following characteristics:
Architecture: 1+1
Switch type: UNIDIRECTIONAL
Operational State: Not Revertive
Switching time <50ms
Triggers: Equipment failures
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Technical Handbook Common
Functional Description
MATRIX copy A
LPC
LOA
LPC
MATRIX copy B

Figure 61. EPS architecture: Matrix failures

MATRIX copy A
LPC
LOA LOA
WORKING
LOA
LOA
SPARE
LPC
MATRIX copy B

Figure 62. EPS architecture: LOA failures

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LOA
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LOA
LOA
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Alcatel 1850 TSS-320 Rel. 1.1
8DG 07734 AAAA Edition 01
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