System Operation Description; Figure 12-12 Secondary - Radwin WinLink 1000 User Manual

System Operation description

Figure 12-12: Secondary Link operating after the switch back to Primary
System Operation description
Normal operation
Switching to backup
Backup operation
Switching back to
primary
WinLink 1000 User Manual
• TDM services are carried by the primary link
• The secondary link (equipment and air interface) is operating but not carrying user traffic
• TDM ports on the secondary IDUs are tri-state
• Switching to secondary will occur in the following cases:
• Loss of the primary air interface due to sync loss
• Loss of the primary air interface due to failure of the receiver to acquire expected
TDM data during a period of 24ms
• Primary equipment power off (either ODU or IDU, local or remote)
• The switching result would be:
• TDM ports on the primary IDUs turn to tri-state
• TDM ports on the secondary IDUs become active
• TDM services are carried by the secondary link
• Switching back to primary will occur as soon as the Primary link is fully functional for 1
second
Release 1.9.40
Chapter 12
12-14