ADC 2 Manual Do Utilizador

With two doublers, four sets of auxiliary power pairs must be installed 
between COT and the RT. These auxiliary power pairs must be the same wire 
gauge (or larger) as the pairs used for HDSL and power.

The PG-Flex system can operate with a number of other systems, sharing the 
same cable binder group, such as:

T1 (1.544 Mbps capability)

POTS

DDS

Other PG-Flex systems

With doublers, PG-Flex CO line units produce ±125V to ±130V on the HDSL 
and auxiliary power pairs. At least ±75V is required at the RT for ringer 
voltage and POTS loop current to meet specification.

Refer to the PG-Flex COT shelf, RT enclosure, and line unit practices for 
additional information on PG-Flex powering and auxiliary power pair 
requirements (see 

).

Span 1
HDSL

Auxiliary Power Pairs

Span 2
HDSL

Span 3
HDSL

H0075-A