HiGain
HiGain
FCC Class A Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Limited Warranty
Product warranty is determined by your service agreement. Contact your sales representative or
Customer Service for details.
Modifications
Any changes or modifications made to this device that are not expressly approved by ADC DSL
Systems, Inc. voids the user's warranty.
All wiring external to the products should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been tested and verified to comply with the applicable sections of the following
safety standards:
GR 63-CORE - Network Equipment-Building System (NEBS) Requirements
GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety
Binational standard, UL-1950/CSA-C22.2 No. 950-95: Safety of Information Technology
Equipment
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of
ADC DSL Systems, Inc. Other product names mentioned in this installation guide are used for
identification purposes only and may be trademarks or registered trademarks of their respective
companies.
Copyright Information
© 2000 ADC DSL Systems, Inc. All rights reserved. Information contained in this document is company
private to ADC DSL Systems, Inc., and shall not be modified, used, copied, reproduced or disclosed in
whole or in part without the written consent of ADC.
ADC DSL Systems, Inc.
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: 714.832.9922
Fax: 714.832.9924
Technical Assistance
Tel: 800.638.0031
Tel: 714.730.3222
Fax: 714.730.2400
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000
THE HRU-402 LIST 1 AND LIST 3
The HiGain
®
Remote Units, HRU-402 List 1 or HRU-402 List 3, function as the
remote end of a repeaterless T1 transmission system. An HRU connects to a HiGain
HDSL Line Unit (HLU), creating a HiGain system that provides 1.544 Mbps
transmission on two unconditioned copper pairs over the full Carrier Service Area
(CSA) range. HiGain Doubler Units (HDUs) can also be used to extend the range. The
HRU-402 List 1 supports both local and line powering. The HRU-402 List 3 is only
locally powered and has an expanded input voltage range of -20 to -70 volts.
FEATURES
SPECIFICATIONS
• 1.544 Mbps full-duplex transmission on two
unconditioned copper pairs
• Generic and addressable repeater loopback
activation codes
• Status Light Emitting Diodes (LEDs) for
Digital Signal Level 1 (DS1) and HDSL
• Lightning and power cross-protection on
HDSL and DS1 interfaces
• Craft port access for maintenance terminal
connection
• DS1 transmit and receive monitor jacks for
testing
• Narrow 200 mechanics • Remote provisioning
• Support for up to five spans • Ultra-low wander
Operating Temperature
-40 °F to +149 °F (-40 °C to + 65 °C)
Operating Humidity
5% to 95% non-condensing
Power Consumption
3.1 W (when connected to HLU-231 List 8x, HLU-319 List 5x, or
HLU-388 List 5x; 4.5W when connected to all other line units.)
Line powered: 5.2 W (List 1, sealing current on); 4.7 W (List 3,
sealing current on)
Locally powered: 4.1 W (List 1, sealing current off); 3.7 W (List 3,
sealing current off)
Electrical Protection
Secondary surge and power cross-protection on all DS1 and HDSL2
ports
Mounting
Narrow 200 mechanics shelf (half-width 400 mechanics)
HDSL Line Code
784 kbps 2B1Q full duplex
HDSL Output
+13 dBm ±0.5 dBm, 135 Ω
DS1 Pulse Output
0 dB, -7.5 dB, -15 dB
Maximum Provisioning Loss
35 dB at 196 KHz, 135 Ω
DS1 Line Rate
1.544 Mbps ±200 bps
DS1 Line Format
Alternate Mark Inversion (AMI), Bipolar with 8-zero Substitution
(B8ZS) or Zero Byte Time Slot Interchange (ZBTSI)
DS1 Frame Format
Extended SuperFrame (ESF), SuperFrame (SF) or THRU (unframed)
INSTALLATION
1 Set the DS1 RCV LEV and TLOS loopback switches. These switches set the DS1
receive line buildout level toward the Customer Interface (CI).
2 Set the S1 switches (SCURR and LPWR) adjacent to the card-edge connector.
Switch 1
0 Default setting. Sets the DS1 receive level toward the CI to 0 db.
-15 Sets the DS1 receive level toward the CI according to -15 db.
Switch 2
ENA Default setting. Enables the TLOS loopback option. The TLOS message
displays on the HLU when the HRU is in a logic loopback state caused by a
loss of its T1 input from the CI.
DIS Disables the TLOS loopback option.
SCURR
Disable (up position) Default setting. Disables the flow of simplex sealing current
towards the upstream unit.
Enable (down position) Enables the flow of simplex sealing current towards the
upstream unit. Simplexed sealing current is polarity-sensitive
and will not flow if the HDSL loops adjacent to the HRU are
reversed.
LPWR
(List 1 only)
Line power (up position) Default setting. Configures the HRU-402 to receive power
from the upstream line unit over the HDSL pairs.
Local power (down position) Configures the HRU-402 to receive power from a local -48V
supply. If local power is not present, the HRU reverts to line
power mode.
HRU-402
HiGain
REM UNIT
ALM
L
TELEPHONE Co. PROPERTY
LP2
ESF
SF
LP1
B8ZS
AMI
LBK
H
D
S
L
RCV
LEV
TLOS
LB
D
S
1
0 -15
DIS EN
XMT
BRG
RCV
RS-232
DCE
1
HRU-402 REMOTE UNITS
LIST 1 (LOCAL AND LINE
P
OWER)
L
IST 3 (LOCAL POWER)
QUICK INSTALLATION
´,-m¶8f¨
1213778
March 30, 2000
Product Catalog: HRU-402-L1,
HRU-402-L3
CLEI: T1L2CW0A, T1L3KLJD
Document: 350-402-100-04, Issue 4
(146 stránky)
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