Product Info

Commissioning
46 (78) © Nokia Corporation Draft DN999099
Nokia Proprietary and Confidential Issue 4-0 en
Note
Allocate transmission capacity for chaining as follows:
If the FXC type transmission unit replaced an FC type transmission unit during a
BTS upgrade for chaining, or if CX 3.0 software (or later) is not loaded at the
BTS, the site must be uncommissioned and then re-commissioned before
allocating transmission capacity for the BTS chain.
With BTS Manager, uncommission the master BTS by selecting
COMMISSIONING | WIZARD from the main menu and selecting the ‘Undo
Commissioning’ button. Make sure that CX 3.0 or later is loaded at the BSC or
NMS and start Commissioning Wizard again, as described earlier in this manual.
1. Select the line interface used (Port 1 - Port 16, depending on the
transmission unit). An FXC type transmission unit is required for chaining.
2. Click the TCHs button and then click in a cell in the ‘Abis TS Allocation
for this BTS’ table to allocate time-slots to a TRX. Repeat this step to
allocate transmission capacity to all TRXs in the BTS chain (up to 12 TRXs
are possible in a chained configuration).
In the example shown in Figure 18, there are five TRXs in two BTS
cabinets. TRXs 1, 2, and 3 are in the first BTS and TRXs 5 and 6 are in the
second BTS in the chain.
From here onwards, you can choose one of three alternative ways to
proceed.
Alternative 1.
Click the TRXSIG button and then click the first bit in a time-slot in the
Abis allocation table. Select the link speed from the pop-up menu. Repeat
for all TRXs in the BTS configuration. Click the OMUSIG button and then
click a cell in the Abis allocation table. Select the link speed from the pop-
up menu.