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PairGain T1LI4144AA, Quick Installation Manual

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PairGain T1LI4144AA Quick Installation Manual Download Page 1

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 350-231-174-01

Revision History of this guide.

Revision 01—December 10, 1997

A) Initial Release

Model

List

Part Number

CLEI Code

HLU-231

7D

150-1111-74

T1LI4144AA

Summary of Contents for T1LI4144AA

Page 1: ...QUICK INSTALLATION GUIDE PAIRGAIN TECHNOLOGIES INC SECTION 350 231 174 01 Revision History of this guide Revision 01 December 10 1997 A Initial Release Model List Part Number CLEI Code HLU 231 7D 150 1111 74 T1LI4144AA ...

Page 2: ...oltage Option 5 Provisioning 6 Using the SEL and MODE Front Panel Buttons 6 Default Settings 6 Using the Craft port 7 System Settings 8 Testing 11 Alarms 11 Loopbacks 12 Four Character Diagnostic Messages 14 Specifications 16 Documentation 16 Technical Support 16 Bulletin Board Services 17 Copyright 1997 PairGain Technologies Inc PairGain and HiGain are registered trademarks of PairGain Technologi...

Page 3: ...HLU 231 List 7D operation when used with and without doublers For applications without doublers the HLU 231 List 7D is directly connected to the HRU by the two cable pairs For doubler applications one or two doublers may be used in the HDSL loops between the HLU 231 List 7D and the HRU For more detailed information consult the HLU 231 List 7D Technical Prac tice Section Number 150 231 174 Features...

Page 4: ...Section 350 231 174 Revision 01 2 HLU 231 List 7D The HLU 231 Line Unit List 7D front panel features are ...

Page 5: ...ptional settings and alarms System option buttons MODE and SEL Select buttons used to set system modes Status LED Tri color LED that indicates system state Green Normal Operation Flashing Green HDSL Acquisition Flashing Red Minor Alarm Red FUSE ALRM Yellow Self Test in progress or an HLU 231 List 7D loopback in effect CREM or NLOC Flashing Yellow The HLU 231intelligent loop back is in an ARMED sta...

Page 6: ...ard Edge Connectors The HLU 231 card edge connector pinouts are shown below The following rules apply to the HLU 231 card edge connector If the shelf uses pin 23 remove resistor R39 from the HLU 231 board This removes the burn in circuit from pin 23 The HLU 231 uses pins 20 and 21 as alarm relay output The Kentrox 220 T Term shelf uses the same pins for external equalizer output If the HLU 231 is ...

Page 7: ...erly seated Unipolar Bipolar HDSL Voltage Option The symmetry of the HDSL line powering voltage can be set by the S2 switch located on the printed circuit board The factory default setting is Unipolar It sets the HDSL line voltage to 0 V on loop 2 and to either 130V for non doubler applications or 200 V for doubler applications on loop 1 The Bipolar selection sets the HDSL line voltage to 65 V on ...

Page 8: ...ng 2 Press the SEL button to step the display through all possible settings one at a time of the parameter being displayed 3 Press the MODE button to select the desired parameter and move to the next parameter After you have configured the last parameter the dis play prompts you to confirm the settings 4 Do one of the following Press the SEL button to install the settings Press the MODE button to ...

Page 9: ... VT Terminal Emulation 2 Use a serial cable to connect the RS 232 COM port on the dumb terminal to the HLU 231 front panel Craft port 3 On each screen enter the key represented by the letter in parenthesis for the parameter to be changed Each entry of this letter scrolls the parameter to its next value After all selections have been made press to exit and to con firm the changes This activates the...

Page 10: ... ON Selects the Extended Superframe ESF frame ZBTSI mode OFF Deslects the ESF frame ZBTSI mode LPBK DIS Configures the HLU 231 to ignore the 2 in 5 Smart Jack loopback command ENA Enables the HLU 231 to respond to the 2 in 5 Smart Jack loopback command LBTO NONE Disables automatic time out cancellation of all loopbacks 20 Sets automatic cancellation of all loopbacks to 20 minutes after initiation ...

Page 11: ...and loopback codes A4LB Configures the HiGain system to respond to the Wescom Mod 1 addressable repeater in band loopback codes A5LB Configures the HiGain system to respond to the Teltrend Mod 1 addressable repeater in band loopback codes PWRF DIS Disables powering to the HRU and or doubler over the HDSL pairs ENA Enables powering to the HRU and or doubler over the HDSL pairs DS1 B8ZS Places both ...

Page 12: ...S signal at both the HLU and HRU T1 output ports when both of the HDSL loops are not in sync Loss of Sync Word 1LP Causes HiGain to transmit the AIS signal at both the HLU and HRU T1 output ports when either of the two HDSL loops is not in sync LOSW or if a margin alarm occurs SAIS ENA Causes the HRU to transmit the AIS signal towards the Customer Interface CI when in NREM loopback DIS Prevents th...

Page 13: ...ages Message Full Name Description NONE No Alarms LLOS Local Loss of Signal No signal from HLU 231 local T1 inter face RLOS Remote Loss of Signal No signal from HRU remote T1 interface LOSW1or LOSW2 Loss of Sync Word 1 or 2 HDSL loop 1 or 2 has lost sync H1ES or H2ES HDSL Loop 1 or 2 Errored Second Loop 1 or 2 has incurred a CRC error DS1 Digital Service 1 DS1 input BPVs at the HRU have exceeded t...

Page 14: ...am in band codes or from the dumb terminal NLOC Network Local Loopback Loopback at HLU toward the network initi ated by upstream in band codes or from the dumb terminal CLOC Customer Local Loopback Loopback at HRU toward customer initiated from Customer Premises Equipment CPE by in band codes or from the dumb terminal CREM Customer Remote Loopback Loopback at HLU toward customer initiated from CPE...

Page 15: ...and codes or the main tenance terminal NDU2 Network Doubler 2 Loopback The loopback at doubler 2 toward the net work initiated by in band codes or the main tenance terminal CDU1 Customer Doubler 1 Loopback The loopback at doubler 1 toward CI initi ated by in band codes or the maintenance terminal CDU2 Customer Doubler 2 Loopback The loopback at doubler 2 toward CI initi ated by in band codes or th...

Page 16: ...oop or Loop 3 The 2nd Doubler and HRU transceivers are trying to establish contact with each other on loops 1 or 2 of span 3 ACQ1 or ACQ2 Acquisition 1 or Acquisition 2 The HLU and HRU multiplexers are trying to establish synchronization over each loop A2L1 or 2 Acquisition 2 Loop 1 or Loop 2 The 1st Doubler and either HRU or 2nd Doubler multiplexers are trying to estab lish synchronization with e...

Page 17: ...ither HDSL pair in span 1 BAD RT No response from HRU The HLU does not receive any response from the HRU Thus the HRU s integrity is questionable VER HLU Software Version This is displayed during the System Settings review mode Depress the MODE button for 3 seconds to enter Sys tem Settings review mode LIST 0xL HLU s List Displayed during System Settings review mode defined above FRM Frame SF ESF ...

Page 18: ...e any comments on any PairGain documentation send mail to technical_publications pairgain com Type the product name and the sec tion number of the document in the subject area of the email message Technical Support PairGain Technical Assistance is available 24 hours a day 7 days a week by contacting PairGain Customer Service Engineering group at Telephone 800 638 0031 or 714 832 9922 Fax 714 832 9...

Page 19: ...oard system for obtaining current information on PairGain products product troubleshooting tips and aids accessing helpful utilities and for posting requests or questions This system is available 24 hours a day by calling 714 730 3299 Transmission speeds up to 28 8 kbps are supported with a character format of 8 N 1 ...

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