PairGain HiGain Solitaire H2TU-R-402 User manual

Corporate Office:
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
FAX: [phone]
For Technical Assistance:
800.638.0031
Product Number: 150-2450-01, 150-2450-11
List 1 CLEI Code: VARHJRUC
G
ALM
L
ESF
SF
LOOP
B8ZS
AMI
LBK
D
S
1
IN
BRG
OUT
RS-232
DCE
H
D
S
L
2
H
2
T
U
*
R
4
0
2
SOLITAIRE
HiGain
PairGain
H2TU-R-402
List 1 and List 1A
Remote Unit
Quick Installation Guide
FCC Certification
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
PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of
60 months from the date of original shipment, given correct customer installation and regular maintenance.
PairGain will repair or replace at PairGain’s option any unit without cost during this period if the unit is found
to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. 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 voids the
warranty.
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.
PairGain continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your
PairGain sales representative for details and pricing.
Modifications
Any changes or modifications made to this device that are not expressly approved by PairGain Technologies,
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
The H2TU-R-402 List 1 and List 1A have been tested and verified to comply with the applicable sections of
the following standards.
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements: Physical Protection
 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
PairGain and HiGain are registered trademarks, and HiGain Solitaire is a trademark of PairGain
Technologies, Inc. All 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
© Copyright 1999 PairGain Technologies, Inc. Information contained in this document is company private to
PairGain Technologies, Inc., and shall not be modified, used, copied, reproduced or disclosed in whole or in
part without the written consent of PairGain.
THE H2TU-R-402 LIST 1 AND LIST 1A
The PairGain®HiGain Solitaire™ product family is the industry’s first practical
implementation of High bit-rate Digital Subscriber Line 2 (HDSL2). The
H2TU-R-402 List 1 or List 1A functions as the remote end of a repeaterless T1
transmission system. An H2TU-R connects to a HiGain HDSL2 Line Unit (H2TU-C),
creating a HiGain system that provides 1.552 Mbps transmission on one
unconditioned copper pair over the full Carrier Service Area (CSA) range. The
H2TU-R-402 List 1A is a line-powered unit. The List 1 supports local or
line-powering.
FEATURES
SPECIFICATIONS
•Status Light Emitting Diodes (LEDs) for
Digital Signal Level 1 (DS1) and HDSL2
•Lightning and power cross-protection on
HDSL2 and DS1 interfaces
•Craft port for maintenance terminal
connection to access Solitaire HDSL2
provisioning screens
•1.552 Mbps full-duplex Overlapped PAM
Transmission with Interlocking Spectra
(OPTIS) HDSL2 transmission on a single pair
•DS1 transmit (IN) and receive (OUT) bridging
jacks for testing
•Generic and addressable repeater loopback
activation codes
•Line powered •Remote provisioning
•Narrow 200 mechanics •Ultra-low wander
•Support for up to three spans •Flash download of firmware updates
Operating Temperature -40 °F to +149 °F (-40 °C to + 65 °C)
Operating Humidity 5% to 95% non-condensing
Power Consumption 6 Watts
Local Power Requirement (List 1 option) -42.5 Vdc to -56.5 Vdc
Electrical Protection Secondary surge and power cross protection on
all DS1 and HDSL2 ports
Mounting Any 400 or 200 mechanics shelf
HDSL2 Line Rate 1.552 Mbps OPTIS
HDSL2 Output +16.5 dBm ±0.5 dBm, 135 
DS1 Pulse Output 0 dB, -7.5 dB, -15 dB
Maximum Provisioning Loss 35 dB at 196 KHz, 135 
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format AMI or B8ZS
DS1 Frame Format ESF, SF or THRU (unframed)
INSTALLATION
1If you are installing the List 1 model, check the configuration of the SCURR
switch. The default configuration is disabled (up position). If your particular
application requires simplex sealing current, place the SCURR switch in the
down position.
2Align the List 1 or List 1A remote unit with the enclosure slot guides, and push
the unit in. The unit should snap into place, indicating that it is properly seated.
Continued
H2TU-R-402 List 1

Document Number: 352-402-111-02
December 10, 1999

Corporate Office:
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
FAX: [phone]
For Technical Assistance:
800.638.0031
Product Number: 150-2450-01, 150-2450-11
List 1 CLEI Code: VARHJRUC
G
ALM
L
ESF
SF
LOOP
B8ZS
AMI
LBK
D
S
1
IN
BRG
OUT
RS-232
DCE
H
D
S
L
2
H
2
T
U
*
R
4
0
2
SOLITAIRE
HiGain
PairGain
H2TU-R-402
List 1 and List 1A
Remote Unit
Quick Installation Guide
FCC Certification
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
PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of
60 months from the date of original shipment, given correct customer installation and regular maintenance.
PairGain will repair or replace at PairGain’s option any unit without cost during this period if the unit is found
to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. 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 voids the
warranty.
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.
PairGain continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your
PairGain sales representative for details and pricing.
Modifications
Any changes or modifications made to this device that are not expressly approved by PairGain Technologies,
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
The H2TU-R-402 List 1 and List 1A have been tested and verified to comply with the applicable sections of
the following standards.
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements: Physical Protection
 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
PairGain and HiGain are registered trademarks, and HiGain Solitaire is a trademark of PairGain
Technologies, Inc. All 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
© Copyright 1999 PairGain Technologies, Inc. Information contained in this document is company private to
PairGain Technologies, Inc., and shall not be modified, used, copied, reproduced or disclosed in whole or in
part without the written consent of PairGain.
THE H2TU-R-402 LIST 1 AND LIST 1A
The PairGain®HiGain Solitaire™ product family is the industry’s first practical
implementation of High bit-rate Digital Subscriber Line 2 (HDSL2). The
H2TU-R-402 List 1 or List 1A functions as the remote end of a repeaterless T1
transmission system. An H2TU-R connects to a HiGain HDSL2 Line Unit (H2TU-C),
creating a HiGain system that provides 1.552 Mbps transmission on one
unconditioned copper pair over the full Carrier Service Area (CSA) range. The
H2TU-R-402 List 1A is a line-powered unit. The List 1 supports local or
line-powering.
FEATURES
SPECIFICATIONS
•Status Light Emitting Diodes (LEDs) for
Digital Signal Level 1 (DS1) and HDSL2
•Lightning and power cross-protection on
HDSL2 and DS1 interfaces
•Craft port for maintenance terminal
connection to access Solitaire HDSL2
provisioning screens
•1.552 Mbps full-duplex Overlapped PAM
Transmission with Interlocking Spectra
(OPTIS) HDSL2 transmission on a single pair
•DS1 transmit (IN) and receive (OUT) bridging
jacks for testing
•Generic and addressable repeater loopback
activation codes
•Line powered •Remote provisioning
•Narrow 200 mechanics •Ultra-low wander
•Support for up to three spans •Flash download of firmware updates
Operating Temperature -40 °F to +149 °F (-40 °C to + 65 °C)
Operating Humidity 5% to 95% non-condensing
Power Consumption 6 Watts
Local Power Requirement (List 1 option) -42.5 Vdc to -56.5 Vdc
Electrical Protection Secondary surge and power cross protection on
all DS1 and HDSL2 ports
Mounting Any 400 or 200 mechanics shelf
HDSL2 Line Rate 1.552 Mbps OPTIS
HDSL2 Output +16.5 dBm ±0.5 dBm, 135 
DS1 Pulse Output 0 dB, -7.5 dB, -15 dB
Maximum Provisioning Loss 35 dB at 196 KHz, 135 
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format AMI or B8ZS
DS1 Frame Format ESF, SF or THRU (unframed)
INSTALLATION
1If you are installing the List 1 model, check the configuration of the SCURR
switch. The default configuration is disabled (up position). If your particular
application requires simplex sealing current, place the SCURR switch in the
down position.
2Align the List 1 or List 1A remote unit with the enclosure slot guides, and push
the unit in. The unit should snap into place, indicating that it is properly seated.
Continued
H2TU-R-402 List 1

Document Number: 352-402-111-02
December 10, 1999

Corporate Office:
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
FAX: [phone]
For Technical Assistance:
800.638.0031
Product Number: 150-2450-01, 150-2450-11
List 1 CLEI Code: VARHJRUC
G
ALM
L
ESF
SF
LOOP
B8ZS
AMI
LBK
D
S
1
IN
BRG
OUT
RS-232
DCE
H
D
S
L
2
H
2
T
U
*
R
4
0
2
SOLITAIRE
HiGain
PairGain
H2TU-R-402
List 1 and List 1A
Remote Unit
Quick Installation Guide
FCC Certification
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
PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of
60 months from the date of original shipment, given correct customer installation and regular maintenance.
PairGain will repair or replace at PairGain’s option any unit without cost during this period if the unit is found
to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. 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 voids the
warranty.
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.
PairGain continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your
PairGain sales representative for details and pricing.
Modifications
Any changes or modifications made to this device that are not expressly approved by PairGain Technologies,
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
The H2TU-R-402 List 1 and List 1A have been tested and verified to comply with the applicable sections of
the following standards.
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements: Physical Protection
 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
PairGain and HiGain are registered trademarks, and HiGain Solitaire is a trademark of PairGain
Technologies, Inc. All 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
© Copyright 1999 PairGain Technologies, Inc. Information contained in this document is company private to
PairGain Technologies, Inc., and shall not be modified, used, copied, reproduced or disclosed in whole or in
part without the written consent of PairGain.
THE H2TU-R-402 LIST 1 AND LIST 1A
The PairGain®HiGain Solitaire™ product family is the industry’s first practical
implementation of High bit-rate Digital Subscriber Line 2 (HDSL2). The
H2TU-R-402 List 1 or List 1A functions as the remote end of a repeaterless T1
transmission system. An H2TU-R connects to a HiGain HDSL2 Line Unit (H2TU-C),
creating a HiGain system that provides 1.552 Mbps transmission on one
unconditioned copper pair over the full Carrier Service Area (CSA) range. The
H2TU-R-402 List 1A is a line-powered unit. The List 1 supports local or
line-powering.
FEATURES
SPECIFICATIONS
•Status Light Emitting Diodes (LEDs) for
Digital Signal Level 1 (DS1) and HDSL2
•Lightning and power cross-protection on
HDSL2 and DS1 interfaces
•Craft port for maintenance terminal
connection to access Solitaire HDSL2
provisioning screens
•1.552 Mbps full-duplex Overlapped PAM
Transmission with Interlocking Spectra
(OPTIS) HDSL2 transmission on a single pair
•DS1 transmit (IN) and receive (OUT) bridging
jacks for testing
•Generic and addressable repeater loopback
activation codes
•Line powered •Remote provisioning
•Narrow 200 mechanics •Ultra-low wander
•Support for up to three spans •Flash download of firmware updates
Operating Temperature -40 °F to +149 °F (-40 °C to + 65 °C)
Operating Humidity 5% to 95% non-condensing
Power Consumption 6 Watts
Local Power Requirement (List 1 option) -42.5 Vdc to -56.5 Vdc
Electrical Protection Secondary surge and power cross protection on
all DS1 and HDSL2 ports
Mounting Any 400 or 200 mechanics shelf
HDSL2 Line Rate 1.552 Mbps OPTIS
HDSL2 Output +16.5 dBm ±0.5 dBm, 135 
DS1 Pulse Output 0 dB, -7.5 dB, -15 dB
Maximum Provisioning Loss 35 dB at 196 KHz, 135 
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format AMI or B8ZS
DS1 Frame Format ESF, SF or THRU (unframed)
INSTALLATION
1If you are installing the List 1 model, check the configuration of the SCURR
switch. The default configuration is disabled (up position). If your particular
application requires simplex sealing current, place the SCURR switch in the
down position.
2Align the List 1 or List 1A remote unit with the enclosure slot guides, and push
the unit in. The unit should snap into place, indicating that it is properly seated.
Continued
H2TU-R-402 List 1

Document Number: 352-402-111-02
December 10, 1999

VERIFICATION
Once the H2TU-R-402 is installed, verify that it is operating properly by monitoring the Status LEDs on the front panel.
LOGGING ON TO THE MAIN MENU
The H2TU-R-402 supports local and remote logon through a maintenance terminal (VT-100 or a PC running VT-100 terminal-emulation software) connected to the craft port on the H2TU-R-402 front panel.
The H2TU-R-402 accesses menus and screens that are replications of those viewed at the H2TU-C. You can also view system settings and inventory, initiate loopbacks, monitor performance, and configure the circuit. To log on using a maintenance terminal: 1Connect a maintenance terminal to the H2TU-R-402 craft port (see Modem Settings
in illustration above). The H2TU-R-402 Logon screen displays.
2Press + to refresh the Logon screen, if necessary. 3Type the first letter of the desired menu. Use the to cycle through menu
selections, and press to change a setting or display a menu. LOOPBACK TESTING
Initiate loopback testing from the maintenance terminal menus or by using inband codes. The inband codes shown below can be sent by a test set. For more information, refer to the technical practice for the H2TU-C line unit.
ALM
L
ESF SF
LOOP
B8ZS AMI LBK
H D
S
L 2
H
2
T
U
*
R
4 0 2
D
S
1
IN
BRG
OUT
RS-232
DCE
SOLITAIRE
HiGain
PairGain
Alarm LED
Loopback LED
CLEI/ECI bar code label
Configuration number label
Loopback control button Extraction handle DS1 transmit (IN) and receive (OUT) bridging jacks
HDSL2 LED
DS1 framing LEDs
DS1 line code LEDs
Craft port provisioning
To access all system maintenance, provisioning and performance screens, connect a standard 9-pin terminal cable between the serial port on a PC and the H2TU-R craft port. Pressing the button for 5 seconds activates a remote loopback toward the network called NREM and a local loopback toward the CPE called CLOC. The unit can be looped down by either pressing the LPBK control button again for 5 seconds or by the standard loopdown inband commands.
Any existing loopback is terminated
before these are activated. Use to remove the H2TU-R-402 from the remote enclosure.
27 25 23 21 19 17 15 13 11
9 7 3 5 1
DS1Tip DS1Ring
Factoryuseonly
Factoryuseonly
Factoryuseonly DS1Ring1 CircuitGround HDSL2Ring
IN
OUT
HDSL2Tip DS1Tip1 ChassisGround*
ChassisGround*
28 26 24 22 20 18 16 14 12 10
8 4 6 2
55 53 51 49 47 45 43 41 39 37 35
32 31
56
54 52 50 48 46 44 42 40 38 36 34
30
33 29
Active pins are highlighted in black. * Chassis Ground may be tied to earth ground according
to local practice.
Card-edge connector
Modem settings: 9600 baud 8 data bits No parity 1 stop bit Hardware flow control:OFF Terminal emulation:VT-100
For non-intrusive test access.
(Inside handle)
List number
1A
Status LED Descriptions
LED Status Indicates Alarm (ALM) LED Shows alarm states for remote and local Loss of Signal (LOS).
Solid red Indicates a Loss of Signal (LOS) condition at the T1 input of the H2TU-R-402.
Blinking Indicates a LOS condition at the T1 input of the H2TU-C line unit.
HDSL2 LED Displays HDSL2 Loop condition.
Solid green Indicates HDSL2 loop is in sync.
Blinking once
per second Indicates the HDSL2 loop is trying to acquire sync.
Blinking 4 times
per second Indicates a margin alarm condition on the HDSL2 loop.
Blinking 10 times
per second Indicates a Cyclical Redundancy Check (CRC) error on the HDSL2 loop.
OFF Indicates no activity on the HDSL2 loop.
DS1 Framing (FRM) LEDs (ESF and SF)
Indicates framing patterns. If DS1 signals are not detected, the ESF, SF, B8ZS, and AMI LEDs will not light.
ESF LED = Solid green Indicates Extended Super Frame (ESF). The LED blinks once per second when a
frame error occurs.
SF LED = Solid green Indicates Super Frame (SF). The LED blinks once per second when a frame error
occurs.
OFF Indicates unframed or no signal.
DS1 Code LEDs (B8ZS and AMI)
Indicates DS1 code options. If DS1 signals are not detected, the ESF, SF, B8ZS, and AMI LEDs will not light.
B8ZS LED = Solid green Indicates that the DS1 line code option is set to Bipolar with 8-Zero Substitution
(B8ZS). The LED blinks once per second when a string of excessive zeros is detected.
AMI LED = Solid green Indicates that the user DS1 line code option is set to Alternate Mark Inversion
(AMI). This LED blinks once per second when a Bipolar Violation (BPV) is detected.
Loopback (LPBK) LED Shows loopback states to and from the network and to and from the Customer
Interface (CI).
Solid yellow Indicates Network Remote Loopback (NREM).
Blinking once
per second Indicates Customer Local Loopback (CLOC) loopback state.
Blinking 4 times per
second Indicates the H2TU-R is in an Armed state.
Type the first letter To view:
onitor A graphical representation of circuit activity and devices. erformance Performance history statistics (current, 24-hour, 48-hour, 31-day). Also displays
alarm status and count.
vent Log Recent system events, their date and time of occurrence. onfig Configuration options (standard, PairGain, date and time, factory defaults). nventory Product information and circuit and unit identifications. logon H2TU-C line unit screens. elp Glossary, screen navigation keys, PairGain contact information.
For more detailed information about the Solitaire HDSL2 screens, provisioning, flash download of firmware updates, and troubleshooting,downloadtheappropriateH2TU-Clineunittechnical practice from the Customer Site portion of the PairGain Web page at www.pairgain.com. A password is required to access the Customer Site Web pages. If you do not have a password, contact your PairGain sales representative.
GNLB Loopback Commands
Loopback Inband Code Description NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C. NRG1 (a)
(a) H2RU regenerators (doublers) are supported in firmware version 3.0 and higher.
110000 DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 111000 DSX-1 signal is looped back to the network at H2RU2. NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R. SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the
H2TU-C.
CRG1 (a) 111100 Signal from customer is looped back to the customer at H2RU1. CRG2 (a) 111110 Signal from customer is looped back to the customer at H2RU2. CLOC 1111100 Signal from customer is looped back to the customer at the
H2TU-R.
Loopdown 11100 Deactivates any of the above loopbacks.
CTRL R
SPACEBAR
ENTER
M
P E
C
I
R
H

VERIFICATION
Once the H2TU-R-402 is installed, verify that it is operating properly by monitoring the
Status LEDs on the front panel.
LOGGING ON TO THE MAIN MENU
The H2TU-R-402 supports local and remote logon through a maintenance terminal
(VT-100 or a PC running VT-100 terminal-emulation software) connected to the craft port
on the H2TU-R-402 front panel.
The H2TU-R-402 accesses menus and screens that are replications of those viewed at the
H2TU-C. You can also view system settings and inventory, initiate loopbacks, monitor
performance, and configure the circuit.
To log on using a maintenance terminal:
1Connect a maintenance terminal to the H2TU-R-402 craft port (see Modem Settings
in illustration above). The H2TU-R-402 Logon screen displays.
2Press + to refresh the Logon screen, if necessary.
3Type the first letter of the desired menu. Use the to cycle through menu
selections, and press to change a setting or display a menu.
LOOPBACK TESTING
Initiate loopback testing from the maintenance terminal menus or by using inband codes.
The inband codes shown below can be sent by a test set. For more information, refer to the
technical practice for the H2TU-C line unit.
ALM
L
ESF
SF
LOOP
B8ZS
AMI
LBK
H
D
S
L
2
H
2
T
U
*
R
4
0
2
D
S
1
IN
BRG
OUT
RS-232
DCE
SOLITAIRE
HiGain
PairGain
Alarm LED
Loopback LED
CLEI/ECI bar code label
Configuration number label
Loopback control button
Extraction handle
DS1 transmit (IN) and receive (OUT)
bridging jacks
HDSL2 LED
DS1 framing LEDs
DS1 line code LEDs
Craft port provisioning
To access all system maintenance, provisioning
and performance screens, connect a standard
9-pin terminal cable between the serial port on a PC
and the H2TU-R craft port.
Pressing the button for 5 seconds activates
a remote loopback toward the network called
NREM and a local loopback toward the CPE
called CLOC. The unit can be
looped down by either pressing the LPBK control
button again for 5 seconds or by the standard
loopdown inband commands.
Any existing loopback is terminated
before these are activated.
Use to remove the H2TU-R-402 from
the remote enclosure.
27
25
23
21
19
17
15
13
11
9
7
3
5
1
DS1Tip
DS1Ring
Factoryuseonly
Factoryuseonly
Factoryuseonly
DS1Ring1
CircuitGround
HDSL2Ring
IN
OUT
HDSL2Tip
DS1Tip1
ChassisGround*
ChassisGround*
28
26
24
22
20
18
16
14
12
10
8
4
6
2
55
53
51
49
47
45
43
41
39
37
35
32 31
56
54
52
50
48
46
44
42
40
38
36
34
30
33
29
Active pins are highlighted in black.
* Chassis Ground may be tied to earth ground according
to local practice.
Card-edge connector
Modem settings:
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation:VT-100
For non-intrusive test access.
(Inside handle)
List number
1A
Status LED Descriptions
LED Status Indicates
Alarm (ALM) LED Shows alarm states for remote and local Loss of Signal (LOS).
Solid red Indicates a Loss of Signal (LOS) condition at the T1 input of the H2TU-R-402.
Blinking Indicates a LOS condition at the T1 input of the H2TU-C line unit.
HDSL2 LED Displays HDSL2 Loop condition.
Solid green Indicates HDSL2 loop is in sync.
Blinking once
per second Indicates the HDSL2 loop is trying to acquire sync.
Blinking 4 times
per second Indicates a margin alarm condition on the HDSL2 loop.
Blinking 10 times
per second Indicates a Cyclical Redundancy Check (CRC) error on the HDSL2 loop.
OFF Indicates no activity on the HDSL2 loop.
DS1 Framing (FRM)
LEDs (ESF and SF)
Indicates framing patterns. If DS1 signals are not detected, the ESF, SF, B8ZS,
and AMI LEDs will not light.
ESF LED = Solid green Indicates Extended Super Frame (ESF). The LED blinks once per second when a
frame error occurs.
SF LED = Solid green Indicates Super Frame (SF). The LED blinks once per second when a frame error
occurs.
OFF Indicates unframed or no signal.
DS1 Code LEDs (B8ZS
and AMI)
Indicates DS1 code options. If DS1 signals are not detected, the ESF, SF, B8ZS,
and AMI LEDs will not light.
B8ZS LED = Solid green Indicates that the DS1 line code option is set to Bipolar with 8-Zero Substitution
(B8ZS). The LED blinks once per second when a string of excessive zeros is
detected.
AMI LED = Solid green Indicates that the user DS1 line code option is set to Alternate Mark Inversion
(AMI). This LED blinks once per second when a Bipolar Violation (BPV) is
detected.
Loopback (LPBK) LED Shows loopback states to and from the network and to and from the Customer
Interface (CI).
Solid yellow Indicates Network Remote Loopback (NREM).
Blinking once
per second Indicates Customer Local Loopback (CLOC) loopback state.
Blinking 4 times per
second Indicates the H2TU-R is in an Armed state.
Type the first letter To view:
onitor A graphical representation of circuit activity and devices.
erformance Performance history statistics (current, 24-hour, 48-hour, 31-day). Also displays
alarm status and count.
vent Log Recent system events, their date and time of occurrence.
onfig Configuration options (standard, PairGain, date and time, factory defaults).
nventory Product information and circuit and unit identifications.
logon H2TU-C line unit screens.
elp Glossary, screen navigation keys, PairGain contact information.
For more detailed information about the Solitaire HDSL2 screens,
provisioning, flash download of firmware updates, and
troubleshooting,downloadtheappropriateH2TU-Clineunittechnical
practice from the Customer Site portion of the PairGain Web page at
www.pairgain.com. A password is required to access the Customer
Site Web pages. If you do not have a password, contact your PairGain
sales representative.
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) H2RU regenerators (doublers) are supported in firmware version 3.0 and higher.
110000 DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 111000 DSX-1 signal is looped back to the network at H2RU2.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the
H2TU-C.
CRG1 (a) 111100 Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 111110 Signal from customer is looped back to the customer at H2RU2.
CLOC 1111100 Signal from customer is looped back to the customer at the
H2TU-R.
Loopdown 11100 Deactivates any of the above loopbacks.
CTRL R
SPACEBAR
ENTER
M
P
E
C
I
R
H

VERIFICATION
Once the H2TU-R-402 is installed, verify that it is operating properly by monitoring the
Status LEDs on the front panel.
LOGGING ON TO THE MAIN MENU
The H2TU-R-402 supports local and remote logon through a maintenance terminal
(VT-100 or a PC running VT-100 terminal-emulation software) connected to the craft port
on the H2TU-R-402 front panel.
The H2TU-R-402 accesses menus and screens that are replications of those viewed at the
H2TU-C. You can also view system settings and inventory, initiate loopbacks, monitor
performance, and configure the circuit.
To log on using a maintenance terminal:
1Connect a maintenance terminal to the H2TU-R-402 craft port (see Modem Settings
in illustration above). The H2TU-R-402 Logon screen displays.
2Press + to refresh the Logon screen, if necessary.
3Type the first letter of the desired menu. Use the to cycle through menu
selections, and press to change a setting or display a menu.
LOOPBACK TESTING
Initiate loopback testing from the maintenance terminal menus or by using inband codes.
The inband codes shown below can be sent by a test set. For more information, refer to the
technical practice for the H2TU-C line unit.
ALM
L
ESF
SF
LOOP
B8ZS
AMI
LBK
H
D
S
L
2
H
2
T
U
*
R
4
0
2
D
S
1
IN
BRG
OUT
RS-232
DCE
SOLITAIRE
HiGain
PairGain
Alarm LED
Loopback LED
CLEI/ECI bar code label
Configuration number label
Loopback control button
Extraction handle
DS1 transmit (IN) and receive (OUT)
bridging jacks
HDSL2 LED
DS1 framing LEDs
DS1 line code LEDs
Craft port provisioning
To access all system maintenance, provisioning
and performance screens, connect a standard
9-pin terminal cable between the serial port on a PC
and the H2TU-R craft port.
Pressing the button for 5 seconds activates
a remote loopback toward the network called
NREM and a local loopback toward the CPE
called CLOC. The unit can be
looped down by either pressing the LPBK control
button again for 5 seconds or by the standard
loopdown inband commands.
Any existing loopback is terminated
before these are activated.
Use to remove the H2TU-R-402 from
the remote enclosure.
27
25
23
21
19
17
15
13
11
9
7
3
5
1
DS1Tip
DS1Ring
Factoryuseonly
Factoryuseonly
Factoryuseonly
DS1Ring1
CircuitGround
HDSL2Ring
IN
OUT
HDSL2Tip
DS1Tip1
ChassisGround*
ChassisGround*
28
26
24
22
20
18
16
14
12
10
8
4
6
2
55
53
51
49
47
45
43
41
39
37
35
32 31
56
54
52
50
48
46
44
42
40
38
36
34
30
33
29
Active pins are highlighted in black.
* Chassis Ground may be tied to earth ground according
to local practice.
Card-edge connector
Modem settings:
9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control:OFF
Terminal emulation:VT-100
For non-intrusive test access.
(Inside handle)
List number
1A
Status LED Descriptions
LED Status Indicates
Alarm (ALM) LED Shows alarm states for remote and local Loss of Signal (LOS).
Solid red Indicates a Loss of Signal (LOS) condition at the T1 input of the H2TU-R-402.
Blinking Indicates a LOS condition at the T1 input of the H2TU-C line unit.
HDSL2 LED Displays HDSL2 Loop condition.
Solid green Indicates HDSL2 loop is in sync.
Blinking once
per second Indicates the HDSL2 loop is trying to acquire sync.
Blinking 4 times
per second Indicates a margin alarm condition on the HDSL2 loop.
Blinking 10 times
per second Indicates a Cyclical Redundancy Check (CRC) error on the HDSL2 loop.
OFF Indicates no activity on the HDSL2 loop.
DS1 Framing (FRM)
LEDs (ESF and SF)
Indicates framing patterns. If DS1 signals are not detected, the ESF, SF, B8ZS,
and AMI LEDs will not light.
ESF LED = Solid green Indicates Extended Super Frame (ESF). The LED blinks once per second when a
frame error occurs.
SF LED = Solid green Indicates Super Frame (SF). The LED blinks once per second when a frame error
occurs.
OFF Indicates unframed or no signal.
DS1 Code LEDs (B8ZS
and AMI)
Indicates DS1 code options. If DS1 signals are not detected, the ESF, SF, B8ZS,
and AMI LEDs will not light.
B8ZS LED = Solid green Indicates that the DS1 line code option is set to Bipolar with 8-Zero Substitution
(B8ZS). The LED blinks once per second when a string of excessive zeros is
detected.
AMI LED = Solid green Indicates that the user DS1 line code option is set to Alternate Mark Inversion
(AMI). This LED blinks once per second when a Bipolar Violation (BPV) is
detected.
Loopback (LPBK) LED Shows loopback states to and from the network and to and from the Customer
Interface (CI).
Solid yellow Indicates Network Remote Loopback (NREM).
Blinking once
per second Indicates Customer Local Loopback (CLOC) loopback state.
Blinking 4 times per
second Indicates the H2TU-R is in an Armed state.
Type the first letter To view:
onitor A graphical representation of circuit activity and devices.
erformance Performance history statistics (current, 24-hour, 48-hour, 31-day). Also displays
alarm status and count.
vent Log Recent system events, their date and time of occurrence.
onfig Configuration options (standard, PairGain, date and time, factory defaults).
nventory Product information and circuit and unit identifications.
logon H2TU-C line unit screens.
elp Glossary, screen navigation keys, PairGain contact information.
For more detailed information about the Solitaire HDSL2 screens,
provisioning, flash download of firmware updates, and
troubleshooting,downloadtheappropriateH2TU-Clineunittechnical
practice from the Customer Site portion of the PairGain Web page at
www.pairgain.com. A password is required to access the Customer
Site Web pages. If you do not have a password, contact your PairGain
sales representative.
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to the network at the H2TU-C.
NRG1 (a)
(a) H2RU regenerators (doublers) are supported in firmware version 3.0 and higher.
110000 DSX-1 signal is looped back to the network at H2RU1.
NRG2 (a) 111000 DSX-1 signal is looped back to the network at H2RU2.
NREM 1110000 DSX-1 signal is looped back to the network at the H2TU-R.
SMJK 11000 DSX-1 signal is looped back to the network at the H2TU-R
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the
H2TU-C.
CRG1 (a) 111100 Signal from customer is looped back to the customer at H2RU1.
CRG2 (a) 111110 Signal from customer is looped back to the customer at H2RU2.
CLOC 1111100 Signal from customer is looped back to the customer at the
H2TU-R.
Loopdown 11100 Deactivates any of the above loopbacks.
CTRL R
SPACEBAR
ENTER
M
P
E
C
I
R
H

Corporate Office:
14402 Franklin Avenue
Tustin, CA 92780-7013
Tel: [phone]
FAX: [phone]
For Technical Assistance:
800.638.0031
Product Number: 150-2450-01, 150-2450-11
List 1 CLEI Code: VARHJRUC
G
ALM
L
ESF
SF
LOOP
B8ZS
AMI
LBK
D
S
1
IN
BRG
OUT
RS-232
DCE
H
D
S
L
2
H
2
T
U
*
R
4
0
2
SOLITAIRE
HiGain
PairGain
H2TU-R-402
List 1 and List 1A
Remote Unit
Quick Installation Guide
FCC Certification
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
PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of
60 months from the date of original shipment, given correct customer installation and regular maintenance.
PairGain will repair or replace at PairGain’s option any unit without cost during this period if the unit is found
to be defective for any reason other than abuse or incorrect use or installation.
Do not try to repair the unit. 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 voids the
warranty.
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.
PairGain continues to repair faulty modules beyond the warranty program at a nominal charge. Contact your
PairGain sales representative for details and pricing.
Modifications
Any changes or modifications made to this device that are not expressly approved by PairGain Technologies,
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
The H2TU-R-402 List 1 and List 1A have been tested and verified to comply with the applicable sections of
the following standards.
 GR 63-CORE - Network Equipment-Building System (NEBS) Requirements: Physical Protection
 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
PairGain and HiGain are registered trademarks, and HiGain Solitaire is a trademark of PairGain
Technologies, Inc. All 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
© Copyright 1999 PairGain Technologies, Inc. Information contained in this document is company private to
PairGain Technologies, Inc., and shall not be modified, used, copied, reproduced or disclosed in whole or in
part without the written consent of PairGain.
THE H2TU-R-402 LIST 1 AND LIST 1A
The PairGain®HiGain Solitaire™ product family is the industry’s first practical
implementation of High bit-rate Digital Subscriber Line 2 (HDSL2). The
H2TU-R-402 List 1 or List 1A functions as the remote end of a repeaterless T1
transmission system. An H2TU-R connects to a HiGain HDSL2 Line Unit (H2TU-C),
creating a HiGain system that provides 1.552 Mbps transmission on one
unconditioned copper pair over the full Carrier Service Area (CSA) range. The
H2TU-R-402 List 1A is a line-powered unit. The List 1 supports local or
line-powering.
FEATURES
SPECIFICATIONS
•Status Light Emitting Diodes (LEDs) for
Digital Signal Level 1 (DS1) and HDSL2
•Lightning and power cross-protection on
HDSL2 and DS1 interfaces
•Craft port for maintenance terminal
connection to access Solitaire HDSL2
provisioning screens
•1.552 Mbps full-duplex Overlapped PAM
Transmission with Interlocking Spectra
(OPTIS) HDSL2 transmission on a single pair
•DS1 transmit (IN) and receive (OUT) bridging
jacks for testing
•Generic and addressable repeater loopback
activation codes
•Line powered •Remote provisioning
•Narrow 200 mechanics •Ultra-low wander
•Support for up to three spans •Flash download of firmware updates
Operating Temperature -40 °F to +149 °F (-40 °C to + 65 °C)
Operating Humidity 5% to 95% non-condensing
Power Consumption 6 Watts
Local Power Requirement (List 1 option) -42.5 Vdc to -56.5 Vdc
Electrical Protection Secondary surge and power cross protection on
all DS1 and HDSL2 ports
Mounting Any 400 or 200 mechanics shelf
HDSL2 Line Rate 1.552 Mbps OPTIS
HDSL2 Output +16.5 dBm ±0.5 dBm, 135 
DS1 Pulse Output 0 dB, -7.5 dB, -15 dB
Maximum Provisioning Loss 35 dB at 196 KHz, 135 
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format AMI or B8ZS
DS1 Frame Format ESF, SF or THRU (unframed)
INSTALLATION
1If you are installing the List 1 model, check the configuration of the SCURR
switch. The default configuration is disabled (up position). If your particular
application requires simplex sealing current, place the SCURR switch in the
down position.
2Align the List 1 or List 1A remote unit with the enclosure slot guides, and push
the unit in. The unit should snap into place, indicating that it is properly seated.
Continued
H2TU-R-402 List 1

Document Number: 352-402-111-02
December 10, 1999