User's Manual

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Off-Line Commissioning of a Daisy Chain 69
Four
Off-Line Commissioning of a Daisy Chain
40000
Up to four UltraWAVE BTSs, WAVEXpress BTSs and/or TurboMAX BTSs can be incorporated into a
daisy chain connected to a BSC. If this configuration is used, each BTS must be installed separately, and
must have off-line commissioning procedures independently performed. Once each BTS is installed and
commissioned, the BTSs can be daisy chained together.
4-1 Prerequisites to Daisy Chaining
1 Ensure that all BTSs comprising the daisy chain are installed and off-line commissioned.
Refer to Chapter Two and Chapter Three for instructions on how to install and off-line
configure the BTSs that are part of the daisy chain.
2 Ensure that the Abis Manager timeslot has been set for each BTS in the daisy chain as
described in Section 4-2. Each Abis link within this daisy chain MUST be allocated a different
Abis timeslot number.
3 Turn the power off to all units.
4 Using the instructions in Section 2-5.3, verify that all E1 and/or T1 lines are in place and
commissioned by the operator from the BSC to the first BTS, and between all successive
BTSs comprising the daisy chain.
If the power fails to one of the units or one of the units in a daisy chain
is rebooted, communication with the downstream units will not be lost.