Section 150-612-102
Revision 03
Page 4
4.04
Refer to the installation section of the
appropriate instruction manual for the unit
you are installing for:
•
Cabling information
•
Proper connections
•
Grounding information
•
Line vs local power
All wiring external to the product(s) should follow the
provisions of the current edition of the National
Electrical Code.
5. WARRANTY
5.01
PairGain Technologies warrants this product
to be free of defects and to be fully
functional for a period of 36 months from the date of
original shipment, given proper installation and
regular maintenance. PairGain will repair or replace
any unit without cost during this period if the unit is
found to be defective for any reason other abuse or
improper use or installation.
5.02
This module should not be field repaired. If
it fails, replace it with another unit and return
the faulty unit to PairGain for repair. Any
modifications of the unit by anyone other than an
authorized PairGain representative will void the
warranty.
5.03
If a unit needs repair, call PairGain for a
Return Material Authorization (RMA)
number and return the defective unit, freight prepaid,
along with a brief description of the problem, to:
PairGain Technologies, Inc.
14402 Franklin Avenue
Tustin, CA 92680
ATTN: Repair and Return Dept.
(714) 832-9922
(800) 638-0031
5.04
PairGain will continue to repair or replace
faulty modules beyond the warranty
program at a nominal charge. Contact your
PairGain sales representative for details and pricing.
6. TECHNICAL ASSISTANCE
6.01
PairGain Technical Assistance is available
24-hours-a-day, 7-days-a-week by
contacting PairGain’s Customer Service Engineering
group at one of the following numbers:
Telephone:
(800) 638-0031
(714) 832-9922
Fax:
(714) 832-9924
During normal business hours (8:00 AM to 5:00 PM,
Pacific Time, Monday - Friday, excluding holidays),
technical assistance calls are answered directly by a
Customer Service Engineer. At other times, a
request for technical assistance is handled by an on-
duty Customer Service Engineer through a callback
process. This process results in a callback within 30
minutes of initiating the request.
In addition, PairGain maintains a computer bulletin
board system for obtaining current information on
PairGain products, product troubleshooting tips and
aids, accessing helpful utilities, and for posting
requests or questions. This system is available 24-
hours-a-day by calling (714) 730-3299.
Transmission speeds up to 28.8 kbps are supported
with a character format of 8-N-1.
B. FUNCTIONAL DESCRIPTION
7. FUNCTIONAL OPERATION
7.01
HiGain-2 utilizes PairGain’s 2B1Q VHDSL
transceiver technology to establish a full-
duplex 1568 Kbps data channels between the HLU
and a remotely mounted HRU-612 HiGain-2 Remote
Unit.
7.02
The HRU-612 power supply converts the
metallic 170 Vdc power feed that is received
on the VHDSL pair to voltages and currents required
by the HRU-612 circuitry. The power supply
gen5, -5 and 30 Vdc outputs. The 30V
output is converted to a 60 mA current feed used to
simplex power the NID (Network Interface Device).
Caution should be used when the HRU is used to
power CSUs. Some CSUs require more output
voltage than the 30 volts provided by the HRU. The
HRU can not power both an NID and a CSU at the
same time.