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ADCP-75-192 • Issue 2 • June 2007
Page 23
© 2007, ADC Telecommunications, Inc.
4. Ensure that the electronic modules within the RF chassis are in the correct position. An RF
chassis in a Hub rack contains enough slots for two sets of tenant RF equipment, where a
set of tenant RF equipment consists of one FSC, one HUC, and up to two FBHDCs. A set
of tenant equipment in an RF chassis is installed in a particular manner, from bottom to
top; the order of modules is HUC, FBHDC, FSC, and FBHDC. The locations of modules
in the chassis must also follow a particular pattern, such that the first set of tenant modules
must occupy the four bottom-most slots in the chassis, the second set must occupy the next
four slots. Refer to Table 6 for more details.
3.3 Assigning Tenants
3.3.1 Understanding Tenant MIB Indexing
Throughout the Digivance system, there are several MIBs that are used to monitor and control
tenant activity. These tenant-based MIBs contain tables with 96 separate objects, where each
object in the table belongs to a given tenant base station sector. The index value used for each
base station sector is constant across the entire system such that once a tenant sector is
configured and an index is established, the same index will be associated with that tenant sector
in all tenant-based MIBs.
3.3.2 BTS Connection MIB
Within the Hubmaster Node, the BTS Connection MIB is used to create new tenant base station
sector instances (simply called “tenants” from here on) to be configured, monitored, and
controlled in the Digivance system. In order to create a new tenant in the Digivance system, the
Hub Config Process in the Hubmaster must first locate a unique BIM instance controlled by one
of the Hub CPUs. This requires that the Hub Node first be configured such that the CPU Rack
ID and Chassis ID (described in Section 2.1 on Page 14) are known.
Table 6. RF Chassis Configuration
CHASSIS SLOT MODULE BAND
82
7 FSC 2
6 FBHDC 2
5 HUC 2
41
3 FSC 1
2 FBHDC 1
1 HUC 1
Note: The Digivance CXD/NXD system can support up to 96 unique Base Station Sectors
per Hubmaster CPU.