Equipment Level Protection; Networking And Protection; Squelching Function In Multiplex Section - Huawei OSN 3500 Technical Manual

Introduction

1.2.7 Equipment Level Protection

1.2.8 Networking and Protection

1.2.9 Squelching Function in Multiplex Section

1-8
Table 1-4 shows the equipment level protection provided by the OptiX OSN 3500.
Table 1-4 Equipment level protection provided by the OptiX OSN 3500
Items protected
E1/T1 processing board
E3/DS3 processing board
E4/STM-1 processing board
Cross-connect and timing unit
SCC unit
-48V power interface board
3.3V board power supply
* The OptiX OSN 3500 supports three TPS groups of different types at the same time.
Being an MADM system, the OptiX OSN 3500 can provide processing capacity for up
to 40 Embedded Control Channels (ECCs), fully meeting the requirements for
complicate networking. It is applicable to various networks at
STM-1/STM-4/STM-16/STM-64 level, such as chain, ring, hub, ring with chain,
tangent rings and intersection rings. For protection at network level, the OptiX OSN
3500 supports 4-fiber/2-fiber Multiplex Section Protection (MSP) ring, linear MSP,
shared optical path virtual trail protection and Subnetwork Connection Protection
(SNCP). Table 1-5 shows the maximum number of the MSP ring supported by the
OptiX OSN 3500.
Table 1-5 Maximum number of the MSP ring supported by the OptiX OSN 3500
Protection scheme
STM-64 4-fiber MSP ring
STM-64 2-fiber MSP ring
STM-16 4-fiber MSP ring
STM-16 2-fiber MSP ring
Each protection time slot in multiplex section protection ring is shared by traffic from
different segments or occupied by extra traffic. With no extra traffic in the ring, and
OptiX OSN 3500 TM - SD
Protection scheme
1:N (N ≤8) TPS
1:N (N ≤3) TPS
1:N (N ≤3) TPS
1+1 hot backup protection
1+1 hot backup protection
1+1 hot backup protection
1:N centralized hot backup protection
Max. number of MSP ring supported
1
2
2
4