Chapter 3. 9500 MXC Nodes
Vol. II-3-28 Alcatel-Lucent
RAC 40
With the exception of its CCDP XPIC capability and the capacity/bandwidth
options supported, RAC 40 operation is similar to RAC 30.
RAC 40 SW Compatibility
From SW 4.0 a modem profile selection capability supports over-air
compatibility between Standard and Legacy RAC 40 operation.
• For SW release 3.4 the modem profile for the RAC 40 in the horizontal plane
was changed to improve performance. It was also changed in the vertical plane,
but only for a 64xE1 capacity selection.
• A RAC 40 operating with SW prior to 3.4 has a ‘Legacy’ modem profile.
• A RAC 40 operating with SW from 3.4 has a ‘Standard’ modem profile.
• A RAC 40 with a Legacy profile will not communicate with a RAC 40 that
has a Standard modem profile.
• With 4.0 SW and later a capability is provided to support over-air compatibility
by allowing selection between Legacy or Standard modem profiles.
• This is capability is only used during the SW upgrade process where the
INU/INUe at one end is loaded with 4.0 or later, and the other end is still
running 3.3 or earlier.
Green RAC is online with transmit or receive active
1
Red No receive signal from the ODU
Status LED Status LED provides indications of:
Off INU power off
Green Normal operation
Orange flashing Configuration not supported, or software / hardware
incompatible
2
Red Critical RAC or ODU alarm
3
3 ODU connector SMA type for ODU jumper cable connection
1. The transmit active or receive active criteria supports all configurations including diversity where one RAC is transmitting and
receiving and the other receiving only.
2. Includes situations where the slot configuration does not support the plug-in, or the plug-in requires a later/different version of
system software.
3. Includes alarm situations caused by component or power supply failure and transmit or receive path failure.
No Item/Label Description
To Next Page
Loading...
