150-412-181-01
March 31, 1998
Revision 01
HRU-412 List 8A
PairGain Engineering - Plant Series
5
Output Wander (MTIE and TVAR) Compliant with Section 7.2.1 of the
T1X1.3/90-026R7 SONET committee report
Line Format
AMI, B8ZS, or ZBTSI
Frame Format
ESF, SF, or unframed
Dimensions
Height:
5.6 in. (14.22 cm)
Width:
1.4 in. (3.55 cm)
Depth:
5.6 in. (14.22 cm)
Weight
1 lb. 2 oz. (510.75 g)
F
UNCTIONAL
D
ESCRIPTION
This section describes the functions of the HRU-412 List 8A.
Operational Capabilities
HiGain utilizes PairGain’s 2B1Q HDSL transceiver system to establish two
full-duplex 784 kbps data channels between the HLU and a remotely mounted
HRU-412 List 8A. This provides a total capacity of 1.568 Mbps between the
two units. PairGain’s HDSL technology provides full-duplex services at
standard T1 rates over copper wires between an HLU and an HRU, which
comprise one HiGain system.
The HRU-412 power supply converts the power feed voltage received on the
simplex pairs (or the -48 Vdc input when locally powered) to voltages and
currents required by the HRU-412 circuitry. The power supply gen5,
-5 and 30 Vdc outputs. The 30 Vdc output is converted to a 60 mA current
feed to power a Network Interface Device (NID). Exercise caution when
powering a unit that requires more than 30 Vdc. The HRU-412 List 8A cannot
power a NID and another product simultaneously.
The HRU-412 dissipates 5 Watts of power and may consume up to 7 Watts
when feeding 60 mA of simplex current to the CI.
Summary of Contents for 150-1103-81
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