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5.
6.
1.2
Capacity upgrade by BTS chaining
The capacity of a Nokia MetroSite BTS installation can be upgraded by
connecting one or two slave BTSs to the master BTS with chaining cables via the
interface units. Up to 12 TRXs can be connected and set up as one BCF unit. Only
the master BTS needs a transmission unit.
Note
All BTS cabinets in a chain must be upgraded to the GSM/EDGE standard.
1.2.1
Working order for a MetroSite EDGE BTS chaining upgrade
The procedures to be completed and the working order in which they are done are
presented below.
Chaining MetroSite BTSs
1.
2.
3.
4.
DN00187365
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Issue 2-0 en
Nokia Proprietary and Confidential
Follow the procedures for Commissioning for upgrade in Chapter 7 of this
document.
Follow the procedures for Completing the upgrade in Chapter 8 of this
document.
Read the information in Chapter 2 of this document, Preparing for
upgrade. This chapter contains essential information about when to power
down the BTS.
Follow the procedures for Chaining Nokia MetroSite EDGE BTSs in
Chapter 6 of this document.
Follow the procedures for Commissioning the BTS chain in Chapter 7.2 of
this document.
Follow the procedures for Completing the upgrade in Chapter 8 of this
document.
Draft
Overview of field upgrade
11 (50)
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