ADC HiGain HLU-432 Original operating instructions

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. Refer to the ADC Warranty/Software
Handbook for additional information or contact your sales representative or Customer Service for
details.
Modifications
FCC requires the user to be notified that any changes or modifications made to this device that are not
expressly approved by ADC voids the user’s warranty.
All wiring external to the product(s) should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been designed to comply with the applicable sections of the following safety
standards:
❑Binational standard, UL-1950 3rd Edition/CSA-C22.2: Safety of Information Technology
Equipment
Trademark Information
ADC and HiGain are registered trademarks of ADC Telecommunications, 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
© 2004 ADC Telecommunications, Inc. All rights reserved. Information contained in this document is
company private to ADC Telecommunications, Inc., and shall not be modified, used, copied, reproduced
or disclosed in whole or in part without the written consent of ADC.
World Headquarters
ADC Telecommunications, Inc.
PO Box 1101
Minneapolis, MN 55440-1101
For Technical Assistance
Tel: [phone]
THE HLU-432 LIST 2
The ADC®HiGain®HLU-432 List 2 line unit is the Central Office (CO) side of a
repeaterless, T1 transmission system for 200/400 mechanics (Remote type) shelves
and enclosures. When used in conjunction with a HiGain Remote Unit (HRU), the
system provides 1.544 Mbps transmission on two unconditioned copper pairs over the
full Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of
24 AWG or 9,000 feet of 26 AWG wire, including bridged taps. This line unit can be
used in applications with or without HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front-panel status LED and four-character
status display
•DS1 & HDSL pinout “wired as remote” to allow
mixed CO/RT cards in one shelf and one wiring
style for Remote shelves
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG)
•Low line-power option (-135 Vdc) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator Signal
(AIS) payload alarm option
•Additional screens for inventory and
troubleshooting
•Grounded loop detection •Bipolar Violation Transparency (BPVT) options
•Payload (PL) or HiGain (HG) loopback
source identification
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -135 Unipolar to ±112 Bipolar Vdc
Mounting 200 or 400 mechanics shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB at 135Ω
Maximum Insertion Loss 35 dB @ 196 kHz
Maximum Loop Attenuation 28 dB
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 Vpk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU, align the line unit with the enclosure slot
guides and slide the unit in. The unit should snap into place, indicating that the unit is
properly seated.
POWER-UPSEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the unit is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages display, followed by the self-test message.
2The Status LED lights yellow, indicating it has entered self-test mode.
If the unit is communicating with the next span device, the following occurs:
1The Status LED flashes green while acquiring each device in the system, and
lights a steady green when the entire system is operating without any alarms.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions.
PROVISIONING
Provision the HLU through the SEL and MODE front-panel pushbuttons:
1Press the MODE pushbutton for approximately one second.
2Press the SEL pushbutton to step the display through all possible settings.
3Press the MODE pushbutton to select the desired parameter and move to the next
parameter.
4Upon configuring your final parameter, press either the SELpushbutton (toinstall)
or press the MODE pushbutton (to bypass). If either of the pushbuttons are not pressed
within 30 seconds, the settings are bypassed.
Continued
Observe HDSL & DS1 pinouts and wire accordingly to avoid
placing HDSL span power voltage on DS1 equipment. Wiring
these leads incorrectly will result in equipment damage and
void all warranties.
Ä
HLU-432 LIST 2
LINE UNIT
QUICK INSTALLATION
´,•I¶1•¨
1299411
July 20, 2004
Product Catalog: HLU-432-L2
CLEI: VACKEE0A
Document: LTPH-QI-1192-03
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000

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. Refer to the ADC Warranty/Software
Handbook for additional information or contact your sales representative or Customer Service for
details.
Modifications
FCC requires the user to be notified that any changes or modifications made to this device that are not
expressly approved by ADC voids the user’s warranty.
All wiring external to the product(s) should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been designed to comply with the applicable sections of the following safety
standards:
❑Binational standard, UL-1950 3rd Edition/CSA-C22.2: Safety of Information Technology
Equipment
Trademark Information
ADC and HiGain are registered trademarks of ADC Telecommunications, 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
© 2004 ADC Telecommunications, Inc. All rights reserved. Information contained in this document is
company private to ADC Telecommunications, Inc., and shall not be modified, used, copied, reproduced
or disclosed in whole or in part without the written consent of ADC.
World Headquarters
ADC Telecommunications, Inc.
PO Box 1101
Minneapolis, MN 55440-1101
For Technical Assistance
Tel: [phone]
THE HLU-432 LIST 2
The ADC®HiGain®HLU-432 List 2 line unit is the Central Office (CO) side of a
repeaterless, T1 transmission system for 200/400 mechanics (Remote type) shelves
and enclosures. When used in conjunction with a HiGain Remote Unit (HRU), the
system provides 1.544 Mbps transmission on two unconditioned copper pairs over the
full Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of
24 AWG or 9,000 feet of 26 AWG wire, including bridged taps. This line unit can be
used in applications with or without HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front-panel status LED and four-character
status display
•DS1 & HDSL pinout “wired as remote” to allow
mixed CO/RT cards in one shelf and one wiring
style for Remote shelves
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG)
•Low line-power option (-135 Vdc) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator Signal
(AIS) payload alarm option
•Additional screens for inventory and
troubleshooting
•Grounded loop detection •Bipolar Violation Transparency (BPVT) options
•Payload (PL) or HiGain (HG) loopback
source identification
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -135 Unipolar to ±112 Bipolar Vdc
Mounting 200 or 400 mechanics shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB at 135Ω
Maximum Insertion Loss 35 dB @ 196 kHz
Maximum Loop Attenuation 28 dB
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 Vpk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU, align the line unit with the enclosure slot
guides and slide the unit in. The unit should snap into place, indicating that the unit is
properly seated.
POWER-UPSEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the unit is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages display, followed by the self-test message.
2The Status LED lights yellow, indicating it has entered self-test mode.
If the unit is communicating with the next span device, the following occurs:
1The Status LED flashes green while acquiring each device in the system, and
lights a steady green when the entire system is operating without any alarms.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions.
PROVISIONING
Provision the HLU through the SEL and MODE front-panel pushbuttons:
1Press the MODE pushbutton for approximately one second.
2Press the SEL pushbutton to step the display through all possible settings.
3Press the MODE pushbutton to select the desired parameter and move to the next
parameter.
4Upon configuring your final parameter, press either the SELpushbutton (toinstall)
or press the MODE pushbutton (to bypass). If either of the pushbuttons are not pressed
within 30 seconds, the settings are bypassed.
Continued
Observe HDSL & DS1 pinouts and wire accordingly to avoid
placing HDSL span power voltage on DS1 equipment. Wiring
these leads incorrectly will result in equipment damage and
void all warranties.
Ä
HLU-432 LIST 2
LINE UNIT
QUICK INSTALLATION
´,•I¶1•¨
1299411
July 20, 2004
Product Catalog: HLU-432-L2
CLEI: VACKEE0A
Document: LTPH-QI-1192-03
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000

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. Refer to the ADC Warranty/Software
Handbook for additional information or contact your sales representative or Customer Service for
details.
Modifications
FCC requires the user to be notified that any changes or modifications made to this device that are not
expressly approved by ADC voids the user’s warranty.
All wiring external to the product(s) should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been designed to comply with the applicable sections of the following safety
standards:
❑Binational standard, UL-1950 3rd Edition/CSA-C22.2: Safety of Information Technology
Equipment
Trademark Information
ADC and HiGain are registered trademarks of ADC Telecommunications, 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
© 2004 ADC Telecommunications, Inc. All rights reserved. Information contained in this document is
company private to ADC Telecommunications, Inc., and shall not be modified, used, copied, reproduced
or disclosed in whole or in part without the written consent of ADC.
World Headquarters
ADC Telecommunications, Inc.
PO Box 1101
Minneapolis, MN 55440-1101
For Technical Assistance
Tel: [phone]
THE HLU-432 LIST 2
The ADC®HiGain®HLU-432 List 2 line unit is the Central Office (CO) side of a
repeaterless, T1 transmission system for 200/400 mechanics (Remote type) shelves
and enclosures. When used in conjunction with a HiGain Remote Unit (HRU), the
system provides 1.544 Mbps transmission on two unconditioned copper pairs over the
full Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of
24 AWG or 9,000 feet of 26 AWG wire, including bridged taps. This line unit can be
used in applications with or without HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front-panel status LED and four-character
status display
•DS1 & HDSL pinout “wired as remote” to allow
mixed CO/RT cards in one shelf and one wiring
style for Remote shelves
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG)
•Low line-power option (-135 Vdc) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator Signal
(AIS) payload alarm option
•Additional screens for inventory and
troubleshooting
•Grounded loop detection •Bipolar Violation Transparency (BPVT) options
•Payload (PL) or HiGain (HG) loopback
source identification
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -135 Unipolar to ±112 Bipolar Vdc
Mounting 200 or 400 mechanics shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB at 135Ω
Maximum Insertion Loss 35 dB @ 196 kHz
Maximum Loop Attenuation 28 dB
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 Vpk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU, align the line unit with the enclosure slot
guides and slide the unit in. The unit should snap into place, indicating that the unit is
properly seated.
POWER-UPSEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the unit is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages display, followed by the self-test message.
2The Status LED lights yellow, indicating it has entered self-test mode.
If the unit is communicating with the next span device, the following occurs:
1The Status LED flashes green while acquiring each device in the system, and
lights a steady green when the entire system is operating without any alarms.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions.
PROVISIONING
Provision the HLU through the SEL and MODE front-panel pushbuttons:
1Press the MODE pushbutton for approximately one second.
2Press the SEL pushbutton to step the display through all possible settings.
3Press the MODE pushbutton to select the desired parameter and move to the next
parameter.
4Upon configuring your final parameter, press either the SELpushbutton (toinstall)
or press the MODE pushbutton (to bypass). If either of the pushbuttons are not pressed
within 30 seconds, the settings are bypassed.
Continued
Observe HDSL & DS1 pinouts and wire accordingly to avoid
placing HDSL span power voltage on DS1 equipment. Wiring
these leads incorrectly will result in equipment damage and
void all warranties.
Ä
HLU-432 LIST 2
LINE UNIT
QUICK INSTALLATION
´,•I¶1•¨
1299411
July 20, 2004
Product Catalog: HLU-432-L2
CLEI: VACKEE0A
Document: LTPH-QI-1192-03
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus or use the MODE and SEL pushbuttons. The inband codes shown below can be sent by a test set.
RS-232
DCE
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 HLU craft port.
Observe HDSL & DS1 pinouts and wire accordingly to avoid placing HDSL span power voltage on DS1 equipment. Wiring these leads incorrectly will result in equipment damage and void all warranties.
Modem settings
:
1200-9600 baud 8 data bits No parity 1 stop bit Hardware flow control: OFF Terminal emulation: VT100
27 25 23 21 19 17 15 13 11
9 7 3 5 1
HDSL Tip 2
Card-Edge Connector
HDSL Ring 2 DS1 Ring DS1 Tip HDSL Ring 1 Circuit Ground DS1 Ring
DS1 XMT
DS1
RCV
DS1 Tip HDSL Tip 1 Chassis Ground*
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
*Chassis ground may be tied to earth ground per local practice.
Front-panel display
Status LED
Extraction handle
List number
DSX1 transmit (XMT) and receive (RCV) bridging jacks
-48 Vdc
local power
(+)
(-)
HLU 432
HiGain
B
R G
B
R G
S P A N
X
M
T
R C
V
M
A R G
I
N
STATUS
M O D E
SETUP
S E L
dB)
(
S P A
N
D S X
1
Management
Alarm Fuse Alarm
Customer Remote Loopback (CREM) or Network Local Loopback (NLOC) is in effect.
Green LED Normal operation.
Flashing Green LED HDSL2 acquisition. Red LED Fuse alarm. Flashing Red LED System alarm. Yellow LED
Flashing Yellow LED System is in Armed (ARM) mode.
Off Line power is off.
System option pushbuttons (for manual setting of system parameters)
Use MODE and SEL to manually modify user options, initiate loopbacks, and display DSX-1 line parameters.
1 2 3 4
Press the MODE pushbutton for 1 second and release.
The front panel alternately displays the first system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF NO message, or press MODE to cancel all changes.
Chassis Ground*
NO Alarm Contact
L2
H0345-C
CLEI code and ECI bar code label
FrontPanel
GNLB Loopback Commands
Loopback Inband Code Description NLOC 1111000 DSX-1 signal is looped back to DSX-1 at HLU. NDU1 110000 Query to initiate loopback at doubler 1 to the network. NDU2 111000 Query to initiate loopback at doubler 2 to the network. NDU3 1010001 Query to initiate loopback at doubler 3 to the network. NDU4 1010010 Query to initiate loopback at doubler 4 to the network. NREM 1110000 DS1 signal is looped back to DS1 at HRU. SMJK 11000 Signal from DS1 is looped back at the HRU by the HRU
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the HLU. CDU1 111100 Query to initiate loopback at doubler 1 to the customer premises. CDU2 111110 Query to initiate loopback at doubler 2 to the customer premises. CDU3 1011001 Query to initiate loopback at doubler 3 to the customer premises. CDU4 1011010 Query to initiate loopback at doubler 4 to the customer premises. CLOC 1111100 Signal from customer is looped back to the customer at the HRU. Loopdown 11100 Loops down any of the above loopback commands.
Copies of this publication or the user manual (LTPH-UM-1193-01) can be downloaded from the ADC website at www.adc.com. To order a hard copy, please contact your sales representative.
System Configuration Codes
Code Description VER xxxx The release revision of the firmware (appears during the System Settings review mode). LIST xxxx The model number of the product (appears during the System Settings review mode). FRM xxxx Indicates the type of frame pattern being received from the DSX-1, where xxxx is SF,
ESF, UNFR, or NONE.
CODE xxxx The line code setting, where xxxx is Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS).
PLEV xxxx Indicates the HDSL line voltage in its LOW (-140 Vdc), HIGH (±112 Vdc), or DIS
(disabled) state.
Network Customer
Premises
HLU HDU1 HDU2 HRU
NLOC NDU1 NDU2
NREM SMJK TLOS
CREM CDU1 CDU4CDU2 CLOC
HDU3 HDU4
NDU3 NDU4
CDU3
H0346-A
Front-Panel Diagnostic Messages
Message (a)
(a) Normal operating messages are in bold.
Description
1=xx or 2=yy Indicates the power of the received HDSL signal on each loop relative to noise. Any value
of 6 dB or greater is adequate for reliable system operation.
nHDU Number (n) of doublers in the circuit. INSL xxDB The maximum Insertion Loss (INSL) message appears followed by xxdB, where xx is the
maximum insertion in dB of all spans and loops.
ACQ1 or ACQ2 The multiplexers of the HLU and the HRU, or the first doubler, are trying to establish
synchronization over Loop 1 or Loop 2 of Span 1.
AnL1 or AnL2 The multiplexers of the two devices on Span nare trying to establish synchronization with
each other on Loop 1 or Loop 2, where nis the number of the span.
BAD RT? The HLU is not receiving any response from the HRU. FERR Framing bit error occurred at HLU DSX-1 input. H1ES or H2ES HDSL Loop 1 or Loop 2 CRC error. LBPV A local bipolar violation has been received at the DSX-1 input to the HLU. MNGD The HLU is under control of the HMU-319 network management unit. PWR FEED GND One of the HDSL loops has been grounded. PWR FEED ON Indicates that the HDSL loops are not grounded. PWR FEED OFF HDSL span power has been turned off. PWR FEED SHRT Indicates a short between the two HDSL pairs or the inability of the HRU to communicate
with the HLU.
SELF TEST The HLU is in a self-test mode. This occurs every power on/off cycle. SIG1 or SIG2 The transceivers of the HLU and HRU, or first doubler, are trying to establish contact with
each other on Loop 1 or Loop 2 of Span 1.
SnL1 or SnL2 The transceivers of the two devices on Span nare trying to establish contact with each
other on Loop 1 or Loop 2, where nis the number of the span.
TLOS HRU is in a logic loopback state caused by a loss of its T1 input from the CI (if enabled
at the HRU through its TLOS switch options).
System Setting Messages
Front-Panel Display Code Description (default values in bold) EQL Sets the DSX-1 equalizer (EQL) to: 0(0 to 132 ft.), 133 (133 to 265 ft.),
266 (266 to 398 ft.), 399 (399 to 532 ft.), 533 (533 to 655 ft.).
LPBK Enables (ENA) or disables (DIS) all inband SMJK loopback commands. SPLB Configures the system for generic inband loopback commands (GNLB) or special loopback
commands (A1LB, A2LB, A3LB, A4LB, A5LB).
PLEV DIS = disables HDSL powering.
LOW = HDSL line voltage is -140 Vdc maximum. AUTO = automatically switches between -140 Vdc for non-doubler applications and ±112 Vdc for doubler applications. HIGH = ±112 Vdc for all applications.
ZBTS ON = ESF frame is operating in Zero-Byte Time Slot Interchange (ZBTSI) mode.
OFF = ESF frame is operating in normal non-ZBTSI mode.
BERT NONE = prevents generation of a system alarm due to excessive BER.
1E-6 or 1E-7 = alarm activates when BER threshold exceeds 10-6 or 10- 7, respectively.
LBTO Loopback timeout = NONE, 20, 60, 120 minutes. ALM Enables (ENA) or disables (DIS) output alarm on pins 22 and 30 when alarm condition
occurs.
DS1 Line code = places the HLU and HRU in B8ZS, AUTO, or AMI mode. FRMG Framing =AUTO or Unframed (UNFR). HAIS 2LP = transmits the AIS signal at both the HLU and the HRU T1 output ports when both
HDSL loops are not in sync (LOSW). 1LP = applies when either of the two HDSL loops are not in sync or if a Margin alarm occurs.
SAIS Enables (ENA) or disables (DIS) transmission of AIS signal during NREM/SMJK loopbacks. RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at HRU input. ALMP Enables a line to output an (AIS) payload of all ones or an (LOS) condition at its DS1 ports
for LOSW, DS1 LOS, and margin alarms.
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency (BPVT). MARG (a)
(a) Can only be set through the Maintenance Terminal.
0 to 15 dB (default = 4 dB).
DS0 (a) NONE = no DS0 channels blocked; BLK = some channels blocked. CONF YES = updates current selections; NO =does not update current selection.

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus or use the MODE and SEL
pushbuttons. The inband codes shown below can be sent by a test set.
RS-232
DCE
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 HLU craft port.
Observe HDSL & DS1 pinouts and wire accordingly to avoid placing
HDSL span power voltage on DS1 equipment. Wiring these leads
incorrectly will result in equipment damage and void all warranties.
Modem settings :
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
27
25
23
21
19
17
15
13
11
9
7
3
5
1
HDSL Tip 2
Card-Edge Connector
HDSL Ring 2
DS1 Ring
DS1 Tip
HDSL Ring 1
Circuit Ground
DS1 Ring
DS1
XMT
DS1
RCV
DS1 Tip
HDSL Tip 1
Chassis Ground*
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
*Chassis ground may be tied to earth ground per local practice.
Front-panel display
Status LED
Extraction handle
List number
DSX1 transmit (XMT) and receive (RCV)
bridging jacks
-48 Vdc
local power
(+)
(-)
HLU 432
HiGain
B
R
G
B
R
G
S
P
A
N
X
M
T
R
C
V
M
A
R
G
I
N
STATUS
M
O
D
E
SETUP
S
E
L
dB)
(
S
P
A
N
D
S
X
1
Management
Alarm Fuse Alarm
Customer Remote Loopback
(CREM) or Network Local
Loopback (NLOC) is in effect.
Green LED Normal operation.
Flashing Green LED HDSL2 acquisition.
Red LED Fuse alarm.
Flashing Red LED System alarm.
Yellow LED
Flashing Yellow LED System is in Armed (ARM) mode.
Off Line power is off.
System option pushbuttons (for manual setting
of system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE pushbutton for 1 second and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF NO
message, or press MODE to cancel all changes.
Chassis Ground*
NO Alarm Contact
L2
H0345-C
CLEI code and
ECI bar code label
FrontPanel
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to DSX-1 at HLU.
NDU1 110000 Query to initiate loopback at doubler 1 to the network.
NDU2 111000 Query to initiate loopback at doubler 2 to the network.
NDU3 1010001 Query to initiate loopback at doubler 3 to the network.
NDU4 1010010 Query to initiate loopback at doubler 4 to the network.
NREM 1110000 DS1 signal is looped back to DS1 at HRU.
SMJK 11000 Signal from DS1 is looped back at the HRU by the HRU
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the HLU.
CDU1 111100 Query to initiate loopback at doubler 1 to the customer premises.
CDU2 111110 Query to initiate loopback at doubler 2 to the customer premises.
CDU3 1011001 Query to initiate loopback at doubler 3 to the customer premises.
CDU4 1011010 Query to initiate loopback at doubler 4 to the customer premises.
CLOC 1111100 Signal from customer is looped back to the customer at the HRU.
Loopdown 11100 Loops down any of the above loopback commands.
Copies of this publication or the user manual (LTPH-UM-1193-01) can
be downloaded from the ADC website at www.adc.com. To order a
hard copy, please contact your sales representative.
System Configuration Codes
Code Description
VER xxxx The release revision of the firmware (appears during the System Settings review mode).
LIST xxxx The model number of the product (appears during the System Settings review mode).
FRM xxxx Indicates the type of frame pattern being received from the DSX-1, where xxxx is SF,
ESF, UNFR, or NONE.
CODE xxxx The line code setting, where xxxx is Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS).
PLEV xxxx Indicates the HDSL line voltage in its LOW (-140 Vdc), HIGH (±112 Vdc), or DIS
(disabled) state.
Network Customer
Premises
HLU HDU1 HDU2 HRU
NLOC NDU1 NDU2
NREM
SMJK
TLOS
CREM CDU1 CDU4CDU2 CLOC
HDU3 HDU4
NDU3 NDU4
CDU3
H0346-A
Front-Panel Diagnostic Messages
Message (a)
(a) Normal operating messages are in bold.
Description
1=xx or 2=yy Indicates the power of the received HDSL signal on each loop relative to noise. Any value
of 6 dB or greater is adequate for reliable system operation.
nHDU Number (n) of doublers in the circuit.
INSL xxDB The maximum Insertion Loss (INSL) message appears followed by xxdB, where xx is the
maximum insertion in dB of all spans and loops.
ACQ1 or ACQ2 The multiplexers of the HLU and the HRU, or the first doubler, are trying to establish
synchronization over Loop 1 or Loop 2 of Span 1.
AnL1 or AnL2 The multiplexers of the two devices on Span nare trying to establish synchronization with
each other on Loop 1 or Loop 2, where nis the number of the span.
BAD RT? The HLU is not receiving any response from the HRU.
FERR Framing bit error occurred at HLU DSX-1 input.
H1ES or H2ES HDSL Loop 1 or Loop 2 CRC error.
LBPV A local bipolar violation has been received at the DSX-1 input to the HLU.
MNGD The HLU is under control of the HMU-319 network management unit.
PWR FEED GND One of the HDSL loops has been grounded.
PWR FEED ON Indicates that the HDSL loops are not grounded.
PWR FEED OFF HDSL span power has been turned off.
PWR FEED SHRT Indicates a short between the two HDSL pairs or the inability of the HRU to communicate
with the HLU.
SELF TEST The HLU is in a self-test mode. This occurs every power on/off cycle.
SIG1 or SIG2 The transceivers of the HLU and HRU, or first doubler, are trying to establish contact with
each other on Loop 1 or Loop 2 of Span 1.
SnL1 or SnL2 The transceivers of the two devices on Span nare trying to establish contact with each
other on Loop 1 or Loop 2, where nis the number of the span.
TLOS HRU is in a logic loopback state caused by a loss of its T1 input from the CI (if enabled
at the HRU through its TLOS switch options).
System Setting Messages
Front-Panel
Display Code Description (default values in bold)
EQL Sets the DSX-1 equalizer (EQL) to: 0(0 to 132 ft.), 133 (133 to 265 ft.),
266 (266 to 398 ft.), 399 (399 to 532 ft.), 533 (533 to 655 ft.).
LPBK Enables (ENA) or disables (DIS) all inband SMJK loopback commands.
SPLB Configures the system for generic inband loopback commands (GNLB) or special loopback
commands (A1LB, A2LB, A3LB, A4LB, A5LB).
PLEV DIS = disables HDSL powering.
LOW = HDSL line voltage is -140 Vdc maximum.
AUTO = automatically switches between -140 Vdc for non-doubler applications and
±112 Vdc for doubler applications.
HIGH = ±112 Vdc for all applications.
ZBTS ON = ESF frame is operating in Zero-Byte Time Slot Interchange (ZBTSI) mode.
OFF = ESF frame is operating in normal non-ZBTSI mode.
BERT NONE = prevents generation of a system alarm due to excessive BER.
1E-6 or 1E-7 = alarm activates when BER threshold exceeds 10-6 or 10- 7, respectively.
LBTO Loopback timeout = NONE, 20, 60, 120 minutes.
ALM Enables (ENA) or disables (DIS) output alarm on pins 22 and 30 when alarm condition
occurs.
DS1 Line code = places the HLU and HRU in B8ZS, AUTO, or AMI mode.
FRMG Framing =AUTO or Unframed (UNFR).
HAIS 2LP = transmits the AIS signal at both the HLU and the HRU T1 output ports when both
HDSL loops are not in sync (LOSW). 1LP = applies when either of the two HDSL loops are
not in sync or if a Margin alarm occurs.
SAIS Enables (ENA) or disables (DIS) transmission of AIS signal during NREM/SMJK loopbacks.
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at HRU input.
ALMP Enables a line to output an (AIS) payload of all ones or an (LOS) condition at its DS1 ports
for LOSW, DS1 LOS, and margin alarms.
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency (BPVT).
MARG (a)
(a) Can only be set through the Maintenance Terminal.
0 to 15 dB (default = 4 dB).
DS0 (a) NONE = no DS0 channels blocked; BLK = some channels blocked.
CONF YES = updates current selections; NO =does not update current selection.

LOOPBACK TESTING
Initiate loopback testing from the HiGain maintenance menus or use the MODE and SEL
pushbuttons. The inband codes shown below can be sent by a test set.
RS-232
DCE
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 HLU craft port.
Observe HDSL & DS1 pinouts and wire accordingly to avoid placing
HDSL span power voltage on DS1 equipment. Wiring these leads
incorrectly will result in equipment damage and void all warranties.
Modem settings :
1200-9600 baud
8 data bits
No parity
1 stop bit
Hardware flow control: OFF
Terminal emulation: VT100
27
25
23
21
19
17
15
13
11
9
7
3
5
1
HDSL Tip 2
Card-Edge Connector
HDSL Ring 2
DS1 Ring
DS1 Tip
HDSL Ring 1
Circuit Ground
DS1 Ring
DS1
XMT
DS1
RCV
DS1 Tip
HDSL Tip 1
Chassis Ground*
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
*Chassis ground may be tied to earth ground per local practice.
Front-panel display
Status LED
Extraction handle
List number
DSX1 transmit (XMT) and receive (RCV)
bridging jacks
-48 Vdc
local power
(+)
(-)
HLU 432
HiGain
B
R
G
B
R
G
S
P
A
N
X
M
T
R
C
V
M
A
R
G
I
N
STATUS
M
O
D
E
SETUP
S
E
L
dB)
(
S
P
A
N
D
S
X
1
Management
Alarm Fuse Alarm
Customer Remote Loopback
(CREM) or Network Local
Loopback (NLOC) is in effect.
Green LED Normal operation.
Flashing Green LED HDSL2 acquisition.
Red LED Fuse alarm.
Flashing Red LED System alarm.
Yellow LED
Flashing Yellow LED System is in Armed (ARM) mode.
Off Line power is off.
System option pushbuttons (for manual setting
of system parameters)
Use MODE and SEL to manually modify user options,
initiate loopbacks, and display DSX-1 line parameters.
1
2
3
4
Press the MODE pushbutton for 1 second and release.
The front panel alternately displays the first
system parameter and its current setting.
Press SEL to step through all possible system
settings for the displayed parameter.
Press MODE to update the parameter and advance
to the next parameter.
After scrolling through all the parameters, press SEL
to confirm changes when prompted with a CONF NO
message, or press MODE to cancel all changes.
Chassis Ground*
NO Alarm Contact
L2
H0345-C
CLEI code and
ECI bar code label
FrontPanel
GNLB Loopback Commands
Loopback Inband Code Description
NLOC 1111000 DSX-1 signal is looped back to DSX-1 at HLU.
NDU1 110000 Query to initiate loopback at doubler 1 to the network.
NDU2 111000 Query to initiate loopback at doubler 2 to the network.
NDU3 1010001 Query to initiate loopback at doubler 3 to the network.
NDU4 1010010 Query to initiate loopback at doubler 4 to the network.
NREM 1110000 DS1 signal is looped back to DS1 at HRU.
SMJK 11000 Signal from DS1 is looped back at the HRU by the HRU
SmartJack module.
CREM 1111110 Signal from customer is looped back to the customer at the HLU.
CDU1 111100 Query to initiate loopback at doubler 1 to the customer premises.
CDU2 111110 Query to initiate loopback at doubler 2 to the customer premises.
CDU3 1011001 Query to initiate loopback at doubler 3 to the customer premises.
CDU4 1011010 Query to initiate loopback at doubler 4 to the customer premises.
CLOC 1111100 Signal from customer is looped back to the customer at the HRU.
Loopdown 11100 Loops down any of the above loopback commands.
Copies of this publication or the user manual (LTPH-UM-1193-01) can
be downloaded from the ADC website at www.adc.com. To order a
hard copy, please contact your sales representative.
System Configuration Codes
Code Description
VER xxxx The release revision of the firmware (appears during the System Settings review mode).
LIST xxxx The model number of the product (appears during the System Settings review mode).
FRM xxxx Indicates the type of frame pattern being received from the DSX-1, where xxxx is SF,
ESF, UNFR, or NONE.
CODE xxxx The line code setting, where xxxx is Alternate Mark Inversion (AMI) or Bipolar with
8-Zero Substitution (B8ZS).
PLEV xxxx Indicates the HDSL line voltage in its LOW (-140 Vdc), HIGH (±112 Vdc), or DIS
(disabled) state.
Network Customer
Premises
HLU HDU1 HDU2 HRU
NLOC NDU1 NDU2
NREM
SMJK
TLOS
CREM CDU1 CDU4CDU2 CLOC
HDU3 HDU4
NDU3 NDU4
CDU3
H0346-A
Front-Panel Diagnostic Messages
Message (a)
(a) Normal operating messages are in bold.
Description
1=xx or 2=yy Indicates the power of the received HDSL signal on each loop relative to noise. Any value
of 6 dB or greater is adequate for reliable system operation.
nHDU Number (n) of doublers in the circuit.
INSL xxDB The maximum Insertion Loss (INSL) message appears followed by xxdB, where xx is the
maximum insertion in dB of all spans and loops.
ACQ1 or ACQ2 The multiplexers of the HLU and the HRU, or the first doubler, are trying to establish
synchronization over Loop 1 or Loop 2 of Span 1.
AnL1 or AnL2 The multiplexers of the two devices on Span nare trying to establish synchronization with
each other on Loop 1 or Loop 2, where nis the number of the span.
BAD RT? The HLU is not receiving any response from the HRU.
FERR Framing bit error occurred at HLU DSX-1 input.
H1ES or H2ES HDSL Loop 1 or Loop 2 CRC error.
LBPV A local bipolar violation has been received at the DSX-1 input to the HLU.
MNGD The HLU is under control of the HMU-319 network management unit.
PWR FEED GND One of the HDSL loops has been grounded.
PWR FEED ON Indicates that the HDSL loops are not grounded.
PWR FEED OFF HDSL span power has been turned off.
PWR FEED SHRT Indicates a short between the two HDSL pairs or the inability of the HRU to communicate
with the HLU.
SELF TEST The HLU is in a self-test mode. This occurs every power on/off cycle.
SIG1 or SIG2 The transceivers of the HLU and HRU, or first doubler, are trying to establish contact with
each other on Loop 1 or Loop 2 of Span 1.
SnL1 or SnL2 The transceivers of the two devices on Span nare trying to establish contact with each
other on Loop 1 or Loop 2, where nis the number of the span.
TLOS HRU is in a logic loopback state caused by a loss of its T1 input from the CI (if enabled
at the HRU through its TLOS switch options).
System Setting Messages
Front-Panel
Display Code Description (default values in bold)
EQL Sets the DSX-1 equalizer (EQL) to: 0(0 to 132 ft.), 133 (133 to 265 ft.),
266 (266 to 398 ft.), 399 (399 to 532 ft.), 533 (533 to 655 ft.).
LPBK Enables (ENA) or disables (DIS) all inband SMJK loopback commands.
SPLB Configures the system for generic inband loopback commands (GNLB) or special loopback
commands (A1LB, A2LB, A3LB, A4LB, A5LB).
PLEV DIS = disables HDSL powering.
LOW = HDSL line voltage is -140 Vdc maximum.
AUTO = automatically switches between -140 Vdc for non-doubler applications and
±112 Vdc for doubler applications.
HIGH = ±112 Vdc for all applications.
ZBTS ON = ESF frame is operating in Zero-Byte Time Slot Interchange (ZBTSI) mode.
OFF = ESF frame is operating in normal non-ZBTSI mode.
BERT NONE = prevents generation of a system alarm due to excessive BER.
1E-6 or 1E-7 = alarm activates when BER threshold exceeds 10-6 or 10- 7, respectively.
LBTO Loopback timeout = NONE, 20, 60, 120 minutes.
ALM Enables (ENA) or disables (DIS) output alarm on pins 22 and 30 when alarm condition
occurs.
DS1 Line code = places the HLU and HRU in B8ZS, AUTO, or AMI mode.
FRMG Framing =AUTO or Unframed (UNFR).
HAIS 2LP = transmits the AIS signal at both the HLU and the HRU T1 output ports when both
HDSL loops are not in sync (LOSW). 1LP = applies when either of the two HDSL loops are
not in sync or if a Margin alarm occurs.
SAIS Enables (ENA) or disables (DIS) transmission of AIS signal during NREM/SMJK loopbacks.
RDA Enables (ENA) or disables (DIS) alarm indications due to remote DS1 LOS at HRU input.
ALMP Enables a line to output an (AIS) payload of all ones or an (LOS) condition at its DS1 ports
for LOSW, DS1 LOS, and margin alarms.
BPVT Enables (ENA) or disables (DIS) Bipolar Violation Transparency (BPVT).
MARG (a)
(a) Can only be set through the Maintenance Terminal.
0 to 15 dB (default = 4 dB).
DS0 (a) NONE = no DS0 channels blocked; BLK = some channels blocked.
CONF YES = updates current selections; NO =does not update current selection.

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. Refer to the ADC Warranty/Software
Handbook for additional information or contact your sales representative or Customer Service for
details.
Modifications
FCC requires the user to be notified that any changes or modifications made to this device that are not
expressly approved by ADC voids the user’s warranty.
All wiring external to the product(s) should follow the provisions of the current edition of the National
Electrical Code.
Standards Compliance
This equipment has been designed to comply with the applicable sections of the following safety
standards:
❑Binational standard, UL-1950 3rd Edition/CSA-C22.2: Safety of Information Technology
Equipment
Trademark Information
ADC and HiGain are registered trademarks of ADC Telecommunications, 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
© 2004 ADC Telecommunications, Inc. All rights reserved. Information contained in this document is
company private to ADC Telecommunications, Inc., and shall not be modified, used, copied, reproduced
or disclosed in whole or in part without the written consent of ADC.
World Headquarters
ADC Telecommunications, Inc.
PO Box 1101
Minneapolis, MN 55440-1101
For Technical Assistance
Tel: [phone]
THE HLU-432 LIST 2
The ADC®HiGain®HLU-432 List 2 line unit is the Central Office (CO) side of a
repeaterless, T1 transmission system for 200/400 mechanics (Remote type) shelves
and enclosures. When used in conjunction with a HiGain Remote Unit (HRU), the
system provides 1.544 Mbps transmission on two unconditioned copper pairs over the
full Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of
24 AWG or 9,000 feet of 26 AWG wire, including bridged taps. This line unit can be
used in applications with or without HiGain Doubler Units (HDUs).
FEATURES
SPECIFICATIONS
•Front-panel status LED and four-character
status display
•DS1 & HDSL pinout “wired as remote” to allow
mixed CO/RT cards in one shelf and one wiring
style for Remote shelves
•Ultra-low wander •Reduced power consumption
•Five-span range with four doublers
(60 kft, 24 AWG)
•Low line-power option (-135 Vdc) for circuits
with a single doubler
•Selectable Power Feed modes •Bit Error Rate (BER) alarm options
•Loss of Signal (LOS)/Alarm Indicator Signal
(AIS) payload alarm option
•Additional screens for inventory and
troubleshooting
•Grounded loop detection •Bipolar Violation Transparency (BPVT) options
•Payload (PL) or HiGain (HG) loopback
source identification
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% non-condensing
HDSL Span Voltage -135 Unipolar to ±112 Bipolar Vdc
Mounting 200 or 400 mechanics shelf
HDSL Line Code 784 kbps 2B1Q
HDSL Output +13.5 dBm ±0.5 dB at 135Ω
Maximum Insertion Loss 35 dB @ 196 kHz
Maximum Loop Attenuation 28 dB
DS1 Line Rate 1.544 Mbps ±200 bps
DS1 Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS)
DS1 Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
DSX-1 Pulse Output 6 Vpk-pk, pre-equalized for 0 to 655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
INSTALLATION
To ensure proper installation of the HLU, align the line unit with the enclosure slot
guides and slide the unit in. The unit should snap into place, indicating that the unit is
properly seated.
POWER-UPSEQUENCE
When the HLU powers up, the four-character display illuminates and reports status
messages.
If the unit is not communicating with the next span device, the following occurs:
1Alarm and diagnostic messages display, followed by the self-test message.
2The Status LED lights yellow, indicating it has entered self-test mode.
If the unit is communicating with the next span device, the following occurs:
1The Status LED flashes green while acquiring each device in the system, and
lights a steady green when the entire system is operating without any alarms.
2The four-character display reports margin (signal-to-noise ratio) readings and
insertion loss.
3If the status LED is not solid green, the display reports alarm conditions.
PROVISIONING
Provision the HLU through the SEL and MODE front-panel pushbuttons:
1Press the MODE pushbutton for approximately one second.
2Press the SEL pushbutton to step the display through all possible settings.
3Press the MODE pushbutton to select the desired parameter and move to the next
parameter.
4Upon configuring your final parameter, press either the SELpushbutton (toinstall)
or press the MODE pushbutton (to bypass). If either of the pushbuttons are not pressed
within 30 seconds, the settings are bypassed.
Continued
Observe HDSL & DS1 pinouts and wire accordingly to avoid
placing HDSL span power voltage on DS1 equipment. Wiring
these leads incorrectly will result in equipment damage and
void all warranties.
Ä
HLU-432 LIST 2
LINE UNIT
QUICK INSTALLATION
´,•I¶1•¨
1299411
July 20, 2004
Product Catalog: HLU-432-L2
CLEI: VACKEE0A
Document: LTPH-QI-1192-03
DNV C ertificatio n, Inc.
REGISTERED FIRM
ISO 9001/TL 9000