User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
Page 496 of 825
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In effect, a 2+2 HSB configuration is a protected 2+0 Space Diversity configuration.
Each IP-20C monitors both of its cores. If the active IP-20C detects a radio failure
in either of its cores, it initiates a switchover to the standby IP-20C.
Notes
:
Only one MIMO or Space Diversity group can be created per IP-20C or
IP-20C-HP unit. All MRMC scripts that support MIMO also support
Space Diversity.
For 4x4 MIMO links, CeraOS 10.5 is not interoperable with earlier
CeraOS versions. If you are upgrading from an earlier version with an
existing 4x4 MIMO link, you must follow the procedure in
4x4 MIMO Link from an Earlier Version to CeraOS 10.5 or Higher (CLI)
14.8.2
Upgrading a 4x4 MIMO Link from an Earlier Version to CeraOS 10.5 or
Higher (CLI)
For 4x4 MIMO links, CeraOS 10.5 is not interoperable with earlier CeraOS
versions. When upgrading from a CeraOS version prior to CeraOS 10.5 to CeraOS
10.5 or higher, if there is an existing 4x4 MIMO link, you must perform either of
the following procedures to properly upgrade the link. Option 1 is the preferred
option.
Note:
You must download the new CeraOS software package to all four units
before
beginning the upgrade process. All four units in the 4x4 MIMO
link must use the same CeraOS build and version.
Upgrade Procedure
–
Option 1
1.
Upgrade the remote Slave unit.
2.
Upgrade the remote Master unit.
3.
Upgrade the local Slave unit.
4.
Upgrade the local Master unit.
Upgrade Procedure
–
Option 2
1.
Upgrade the remote Master unit.
2.
Upgrade the local Slave unit.
3.
Upgrade the local Master unit.
4.
Wait for the link to be restored between the Master units.
5.
Mute both radio carriers on the remote Slave unit.
6.
Upgrade the remote Slave unit.
7.
Unmute both radio carriers on the remote Slave unit.
14.8.3
Configuring a 4x4 MIMO Link (CLI)
To configure a MIMO link, you must perform the following steps:
1 Verify that the following three cables are connected between the Master and
Slave IP-20C units on each side of the link. For details, refer to the IP-20C
Installation Guide or the IP-20C-HP Installation Guide:
◦
Source sharing cable between both EXT REF IP-20 radio connectors.