Another possible configuration between BTS and MSC is shown in Figure 9-3.
This configuration uses a High-speed Digital Subscriber Line (HDSL) in the T1 circuit,
which enables full duplex T1 service over a single pair of wires without repeaters. In most
cases the wireless service provider technician may not be concerned with the repeaters or
HDSL.
Chapter 9 T1 Measurements
9-3
MSC
REPEATER
T1 BACKHAUL CIRCUIT
REPEATER
LEC
N
I
U
N
I
U
BTS
Figure 9-3. BTS and MSC Configuration
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