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 350-231-134-01

Revision History of this guide.

Revision 01—November 25, 1997

A) Initial Release

Model

List

Part Number

CLEI Code

HLU-231

3D

150-1111-34

T1LIE044AA

Summary of Contents for T1LIE044AA

Page 1: ...UICK INSTALLATION GUIDE PAIRGAIN TECHNOLOGIES INC SECTION 350 231 134 01 Revision History of this guide Revision 01 November 25 1997 A Initial Release Model List Part Number CLEI Code HLU 231 3D 150 1...

Page 2: ...isioning 5 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 Specificatio...

Page 3: ...a complete HiGain High bit rate Digital Subscriber Line HDSL system This guide addresses HLU 231 List 3D operation when used with and without doublers For applications without doublers the HLU 231 Lis...

Page 4: ...Section 350 231 134 Revision 01 2 HLU 231 List 3D Features The HLU 231 Line Unit List 3D front panel features are...

Page 5: ...tional 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 Ac...

Page 6: ...rd 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 bo...

Page 7: ...he card guide and the retaining latch locks into place indicating that the unit is properly seated Provisioning The HLU 231 List 3D contains a non volatile RAM NVRAM that stores the system option sett...

Page 8: ...d 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 s...

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 parent...

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 t...

Page 11: ...d addressable repeater in band loopback codes A3LB Configures the HiGain system to respond to the Wescom addressable repeater in band loopback codes A4LB Configures the HiGain system to respond to the...

Page 12: ...s HiGain to operate in an unframed mode This mode disables the auto framing process and forces HiGain to function as a transparent bit pipe HAIS 2LP Causes HiGain to transmit the Alarm Indication Sign...

Page 13: ...cription NONE No Alarms LLOS Local Loss of Signal No signal from HLU 231 local T1 interface RLOS Remote Loss of Signal No signal from HRU remote T1 interface MNR Minor Alrm A minor alarm condition is...

Page 14: ...m 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 Loo...

Page 15: ...Revision 01 Section 350 231 134 HLU 231 List 3D 13...

Page 16: ...op 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...

Page 17: ...ther 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 S...

Page 18: ...ts 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 Suppo...

Page 19: ...ard 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 ho...

Page 20: ......

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