User guide

Planning 1+0 links Chapter 2: Planning considerations
2-30
phn-2513_004v000 (Oct 2012)
Planning 1+0 links
When planning 1+0 links, follow the process described in this section.
Concept of a 1+0 link
A 1+0 link is the simplest link to deploy. There is no redundant equipment deployed and so
costs are minimized. The 1+0 link provides no protection in the case of equipment failure.
If a link is very critical to network operation and where a service outage due to equipment
failure cannot be tolerated, consider deploying a 1+1 Hot Standby link.
Antenna, RFU and CMU configurations for 1+0
Select one of the following 1+0 link end configurations:
• ODU with direct mount antenna (Figure 49).
• ODU with remote mount antenna (Figure 50).
• IRFU with remote mount antenna (Figure 51).
Do not install an ODU and an IRFU in the same link, as they cannot interwork.