Maintaining a RADWIN MHS Link
Figure K-9: Secondary Link operating as the Hot Standby link
Notice that the active link notice is highlighted in red, so that there is no
mistaking which link is operational.
Maintaining a RADWIN MHS Link
IDU Replacement
There are two situations, which must be treated differently.
Situation 1:
To replace either of the IDUs at Site 1.4 or the secondary IDU at Site 1.2,
nothing special is required. Simply disconnect the IDU to be replaced – and
replace it with a new one. Replacing a secondary link IDU obviously has no
effect on the TDM service. Disconnecting the Site 1.4 primary IDU activates
Hot Standby. After the Site 1.4 primary IDU is replaced, the Link will detect
the change and switch back to the primary link.
If you replaced the Site 1.2 secondary IDU, remember to reconnect the
MHS cable.
Situation 2:
Replacing the Site 1.2 primary IDU is different, and requires several steps.
WinLink™ 1000 User Manual
Release 1.9
Appendix K
K-10