Installation Manual

Table Of Contents
Release 3.3, Revision A 1/99
Off-Line Commissioning of a Daisy Chain 83
5-3 Cabling of the Units in a Daisy Chain
Step 1
Connect a T1 cable from the port of the BSC's T1 card labeled Port B to the port of the first BTS’ T1
card labeled Port A.
Step 2
Connect a second T1 cable from the first BTS’ T1 card labeled Port B to the second BTS’ T1 card
labeled Port A. This connects two BTS’ in a single daisy chain.
Step 3
Up to four BTS’ can be connected in this manner. Note that port Port B of the final BTS in the chain
remains unconnected. See Figure 5-1 "Daisy chain configuration for a BTS consisting of 100 Ohm T1
cards"
NOTE
The pin-out of the cables connecting BTS #1 to BTS #2 is the same as the cable
connecting the BSC to BTS #1. The connector pin assignments and DIP switch
settings must adhere to information detailed in Section 1-3.5 "Dual Port T1 Card" on
page 9.