Alcatel-Lucent 9500 MXC User Manual page 202

Chapter 3. 9500 MXC Nodes
Protected Co-channel Links
Vol. II-3-108
Co-channel 2+0 75xE1 Backhaul
Figure 3-59.
ODU 300
V
75xE1 (V)
75xE1 (H)
H
ODU 300
XPIC Cross-Connect Cables
Co-channel links (links on the V and H polarizations) can be 1+1 protected using
hot-standby, space diversity, or frequency diversity.
Refer to Settings, Protection and ATPC on page 3-105.
Example confutations are provided for:
• 2+2 Hot-standby 75xE1 Co-channel Links.
• 4+4 Hot-standby Operation.
For examples of 2+2 and 4+4 space diversity configurations see Ring Node
Configurations on page 3-111.
2+2 Hot-standby Co-channel Links
Figure 3-60 illustrates a Node configured for hot-standby protection of the two
75xE1 co-channel links.
• Hot-standby is normally deployed where equipment protection is the primary
requirement, as distinct from path (and equipment) protection through space or
frequency diversity.
• Both co-channel links (V and H) must be 1+1 protected.
• An NPC plug-in is included in each INUe to provide NCC redundancy.
• The couplers must be equal-loss.
ODU 300
ODU 300
RAC 40 RAC 30
NCC
RAC 40 RAC 30
NCC DAC 16x
75xE1
64xE1
INU
INU
75xE1
150xE1
64xE1
11xE1
11xE1
Alcatel-Lucent