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150-506-100-03

 

Appendix B: Additional Information

HRE-506 List 1 and List 2

March 28, 2000

 27

Lightning Protection Unit

The LPU, shown in 

Figure 12

, is a printed circuit board assembly that attaches to the card edge connector of each 

slot. The LPU is used primarily for protecting the HDSL loops and customer T1 circuits. 

All HRE-506 units are equipped with four LPUs. Each LPU contains four gas tubes that provide surge protection 
to the four ports in each slot. The tubes have three leads that provide protection from Tip and Ring to ground. The 
ground pin is connected to Pin 1 of each slot. 

The gas tube parameters are equivalent to a TII 47 BT. The Vdc breakdown ranges from 300 to 500 volts. The 
tube can withstand at least 400, 10/1000, 500 amp discharges. Amp discharges are quantities of discharges that 
occur before system degradation.

Although the individual gas tubes are field-replaceable components, ADC recommends replacing the entire LPU 
when any of its protector tubes are suspected of functioning improperly. 

Figure 12.

Lightning Protection Unit 

Содержание 150-2204-01

Страница 1: ...USER MANUAL HRE 506 List 1 Part Number 150 2204 01 CLEI T1RHT0V4 List 2 Part Number 150 2204 02 CLEI T1RHT0W4 ...

Страница 2: ...lity Information contained in this document is company private to ADC DSL Systems Inc and shall not be modified used copied reproduced or disclosed in whole or in part without the written consent of ADC Contents herein are current as of the date of publication ADC reserves the right to change the contents without prior notice In no event shall ADC be liable for any damages resulting from loss of d...

Страница 3: ...f the equipment has been damaged in transit immediately report the extent of damage to the transportation company and to ADC Order replacement equipment if necessary Check the packing list to ensure complete and accurate shipment of each listed item If the shipment is short or irregular contact ADC as described in Appendix C Product Support on page 44 If you must store the equipment for a prolonge...

Страница 4: ...Inspecting Shipment 150 506 100 03 iv March 28 2000 HRE 506 List 1 and List 2 ...

Страница 5: ...Pole Mounted Enclosure 14 Grounding a Flat Surface Mounted Enclosure 16 Installing Doubler or Repeater Units 17 Detaching the Dome from the Baseplate 19 Opening the Enclosure 20 Opening a Gel Filled Enclosure 20 Opening an Air Filled Enclosure 21 Closing the Enclosure 21 Pivoting the Enclosure 22 Appendix A Specifications ____________________________________________________________ 23 Appendix B A...

Страница 6: ...ing the LPU Arrestor Boards 39 Valve Replacement Procedures 41 Replacing the Pressure Relief Valve 41 Replacing the Breather Vent Valve 41 Replacing the Air Stem Valve 42 Replacing Pressure Cutoff Valve 43 Appendix C Product Support _________________________________________________________ 44 Appendix D Abbreviations ____________________________________________________________ 45 Certification and...

Страница 7: ...for Pole mounted Unit 15 7 Grounding for Flat Surface mounted Unit 17 8 HRE 506 Enclosure 19 9 T screen Color Code Specifications 28 pair Cable 23 10 Label Locations 24 11 HRE 506 with Cover Removed 26 12 Lightning Protection Unit 27 13 HRE 506 List 1 Remote Gel Filled Enclosure 29 14 HRE 506 Interface Wiring Diagram and Cable Assignments 32 15 Cable Stub Construction 35 16 Dress Splice in Splice ...

Страница 8: ...8 2000 HRE 506 List 1 and List 2 LIST OF TABLES 1 Slot Pin Assignments 18 2 Label Description 24 3 Cable Stub Wire Pair Assignments for Doubler Units 28 pair 31 4 HRE 506 Deployment Rules for Doublers and Repeaters 33 5 Replacement Part Kits 40 ...

Страница 9: ...is to house HiGain remote or doubler units in an HDSL T1 transmission system The HRE 506 is an outdoor enclosure with six single width mechanical slots It has a single gel filled stub HRE 506 List 1 or air filled stub HRE 506 List 2 The air filled unit can be pressurized locally or from the main feeder cable through an air core stub This air core stub protects the air filled unit from flooding the...

Страница 10: ...r pin on the valve Figure 1 below shows the air stem valve location Figure 1 HRE 506 List 2 Remote Air Filled Enclosure Depressurizing must be performed every time the cover is removed from the enclosure Failure to do so may cause personal injury or damage to the equipment Stainless steel dome Metal locking clamp Order wire terminal T bar lockable guard Front View Air cutoff Valve Cable stub Press...

Страница 11: ...r filled unit is not pressurized The assembly allows the enclosure to breathe and keeps the internal atmosphere free of harmful contaminants Figure 2 on page 3 shows the five metal valves Figure 2 Metal Valves Unlike the gel filled unit the pressure cutoff valve in the air filled unit cannot be used to cut off an external air source that is applied to the Schrader air stem valve The air filled uni...

Страница 12: ...is similar to the air filled unit except that the gel filled unit has a breather vent valve instead of a pressure relief valve The breather vent valve allows the circulation of outside air through the gel filled enclosure when it is not pressurized Circulating outside air through the gel filled enclosure prevents the buildup of excessive moisture and other damaging contaminants within the enclosur...

Страница 13: ... characteristics The outer jacket provides protective covering that withstands atmospheric temperatures ground chemicals and stresses expected in standard installations The outside diameter of the cable is 0 64 inches 16 25 mm The HRE 506 cable sealing O ring and V Band seal have been safely tested to 36 pounds per square inch PSI Most cables become ruptured or damaged at this pressure level Howev...

Страница 14: ...from the main feeder cable through the 30 foot 9 144 M stub into the HRE 506 enclosure To shut off the inlet air supply turn the air cutoff valve clockwise 1 full turn To turn on the inlet air supply turn the air cutoff valve counterclockwise 1 full turn To avoid pressure buildup the pressure relief valve is set to release air at a maximum pressure of 15 PSI Due to manufacturing tolerances of the ...

Страница 15: ...ical Practice Before installing the HRE 506 unpack and inspect the shipment for missing components and physical damage that may have occurred during shipping To unpack the enclosure 1 Remove the HRE 506 from its shipping carton Verify that all the equipment listed on the packing list is present 2 Inspect the HRE 506 enclosure card cage and O ring for shipping damage If the equipment has been damag...

Страница 16: ...iameter greater than 7 inches 17 78 cm see Large Pole Mounting on page 12 Flat surface mounting see Flat Surface Mounting on page 12 Rack mounting see Rack Mounting on page 13 For all installations the enclosure must be mounted vertically In addition a shady location is preferred to minimize thermal stress Refer to Table 4 on page 33 for thermal load capacity information While mounting the enclosu...

Страница 17: ...150 506 100 03 Installation HRE 506 List 1 and List 2 March 28 2000 9 Figure 4 HRE 506 Enclosure ...

Страница 18: ...Installation 150 506 100 03 10 March 28 2000 HRE 506 List 1 and List 2 Figure 5 Pivot mounting Bracket ...

Страница 19: ...tub down against the pole or pedestal Mark the location of the two center mounting lag bolt holes Use the two middle mounting holes for this application Remove the mounting bracket 4 Drill two 1 4 inch 0 635 cm diameter mounting holes at the locations marked in Step 3 Each hole should be drilled approximately 3 inches 7 62 cm into the pole 5 Start a lag bolt in the top mounting hole by screwing th...

Страница 20: ...s on the outside bottom of the mounting bracket Screw in the lag bolts 7 Secure the enclosure bracket to the pole by securely tightening all lag bolts 8 Reattach the enclosure base mounting brackets with the four side plate bolts and torque the mounting bracket bolts to 30 40 inch pounds 3 4 4 5 Newton meters 9 If the cable stub connects to an underground cable dress the cable down the pole to the...

Страница 21: ...ure you may want to remove the dome because of the weight and size of the enclosure you may want to remove the dome prior to mounting the enclosure The enclosure must be mounted vertically A shady location is also recommended to minimize thermal stress Have the following equipment ready before you begin this procedure Four 3 8 inch thru bolts for rack mounting Four 3 8 inch nonmetallic washers Non...

Страница 22: ...t the grounding lug on the enclosure to the ground rod 6 Use a 6 AWG cable connect the main cable shield to the ground rod The 8 MIL aluminum shield on the stub is connected to the card cage mounting brackets by a braided shield ground wire This wire connects the shield to the enclosure ground lug The wire may be temporarily removed from the enclosure ground lug when troubleshooting ground faults ...

Страница 23: ...e main cable shield every 2 000 ft 610 m Figure 6 Grounding for Pole mounted Unit If the main feeder cable s shield is bonded to the stub s shield the green insulated or bonded stub shield wire should be disconnected from the metal card cage base This is recommended to reduce service affecting noise from being injected into the doubler circuits from circulating ground loop currents and to help inh...

Страница 24: ...tion in the manhole Torque the grounding lug to between 18 and 22 inch pounds 2 0 and 2 5 Newton meters 5 Using 6 AWG cable connect the main cable shield to the ground connection in the manhole 6 Use a Megger type ohmmeter measure the main cable shield resistance to manhole ground The resistance must be 5 Ω or less 7 If the requirement is not met ground the main cable shield every 2 000 feet 610 m...

Страница 25: ...steps 1 Slide the unit into the card guides of the slot then push the unit into the enclosure until it is seated in the slot connector 2 Push the unit into the card edge connector until it is entirely within the card guide The unit should snap into place indicating that it is properly seated HRE 506 No 6 gauge wire Grounding lug Ground rods No 6 gauge wire Bullet bond Field side CO side Splice cas...

Страница 26: ...e 1 lists the slot pin assignments for the doubler and repeater units supported by the HRE 506 Table 1 Slot Pin Assignments Signal Side Direction Connector Pin Tip 1 In 6 Ring 1 In 5 Tip 2 In 12 Ring 2 In 11 Tip 1 Out 4 Ring 1 Out 3 Tip 2 Out 9 Ring 2 Out 8 Ground 1 Ground 10 ...

Страница 27: ...DOME FROM THE BASEPLATE Figure 8 on page 19 illustrates how to detach the dome To detach the dome from the enclosure base plate follow these steps 1 Release internal pressure 2 Unclamp the dome from the baseplate 3 Lift the dome up and away from the baseplate Figure 8 HRE 506 Enclosure ...

Страница 28: ...xternal pressure supply release the remaining pressure within the enclosure by depressing the center pin of the air stem Unlock the enclosure Loosen cover clamp and twist the stainless steel dome slightly to break the seal 3 If you were unable to turn off the external pressure supply locate the pressure cutoff valve as shown in Figure 3 on page 5 Close the pressure cutoff valve by rotating the val...

Страница 29: ...ist 2 from a portable pressure bottle block air from the cable stub in the splice case by placing an air dam in the stub according to local practice to prevent pressure leakage back into the main cable Verify that the air cutoff valve is off or turned fully clockwise Turn on the pressure from the external source 8 If you are pressurizing an HRE 506 List 2 from the main cable open the air inlet tub...

Страница 30: ...vertical position as shown in Figure 4 on page 9 This reduces the headroom required in manhole installations from 10 inches to less than 3 inches and the amount of valuable air space required for such underground applications To pivot the enclosure out from its vertical position 1 Loosen the four bolts that connect the pivot bracket to the enclosure base plate 2 Lift the housing up slightly and pu...

Страница 31: ...8 pair Cable Environment Operating Temperature 40 to 140 F 40 to 60 C Operating Humidity 10 to 95 non condensing Altitude To 14 000 ft 4 300 m Mounting Dual or Single 239 T1 or DDS ISDN Repeater Mechanics Dimensions Height 21 inches 53 4 cm Diameter 11 3 inches 28 7 cm Depth 14 inches 35 5 cm Volume 0 33 ft3 009 m3 Weight HRE 506 List 1 gel filled 39 lb 17 7 kg HRE 506 List 2 air filled 37 lb 16 8...

Страница 32: ...iption CLEI and ECI Bar Code Label Contains human readable Common Language Equipment Identifier CLEI code number and Equipment Catalog Item ECI bar code number P1 Label Date Code Contains the serial number date code and configuration code Date code consists of YY Last two digits of shipment year DDD Julian date Configuration code consists of Part number Xnn Configuration code Manufacturer s Serial...

Страница 33: ...age 26 inside the enclosure has six mounting positions to hold up to six doubler units There is also a retainer bar on top of the card cage that extends the width of the cage The retainer bar is used for Writing the circuit ID on the label attached to the retainer bar Preventing the doubler units from disconnecting when the enclosure is subjected to severe vibrations or mounted in non vertical pla...

Страница 34: ... List 2 Figure 11 HRE 506 with Cover Removed Card cage six mounting positions Card cage six mounting positions Braided stub shield ground wire Retaining bar wing nut Retainer bar Knobbed retainer screw Knobbed retainer screw Stub entry Ribbon card cage ground cable FRONT VIEW REAR VIEW ...

Страница 35: ...ion to the four ports in each slot The tubes have three leads that provide protection from Tip and Ring to ground The ground pin is connected to Pin 1 of each slot The gas tube parameters are equivalent to a TII 47 BT The Vdc breakdown ranges from 300 to 500 volts The tube can withstand at least 400 10 1000 500 amp discharges Amp discharges are quantities of discharges that occur before system deg...

Страница 36: ...scribed in Air Filled Stub Unit on page 5 The pressure relief valve is not intended to control the pressure that is supplied to the enclosure The external network pressure control system usually located at the front end of the main feeder cable in the servicing CO performs this function Instead the pressure relief valve should be used as a safety device for limiting the maximum internal pressure i...

Страница 37: ...the breather vent valve on the bottom of the housing Remove the valve by unscrewing it Refer to Figure 2 on page 3 for more details Save the breather vent or store it inside the housing for future conversions 2 Check the threaded hole for debris and clean it if necessary 3 Remove the pressure relief valve from the plastic bag Verify that the gasket material is installed on the threaded end of the ...

Страница 38: ...o the 1 4 inch air inlet protrusion of the air intake valve 8 Secure the tube to the valve with the hex bolt and ferrule Spare Connections The HRE 506 stub has three spare pairs and one order wire pair One spare pair and the order wire pair are in the blue group The remaining two spares are in the orange group Order Wire Connections The external order wire pair access port is connected to its surg...

Страница 39: ... 3 In 1 Blue White 6 Green 5 3 4 In 1 Blue White 6 Brown 5 4 5 In 1 Blue White 6 Slate 5 5 6 In 1 Blue Red 6 Blue 5 6 1 In 2 Blue Red 9 Orange 8 7 2 In 2 Blue Red 9 Green 8 8 3 In 2 Blue Red 9 Brown 8 9 4 In 2 Blue Red 9 Slate 8 10 5 In 2 Blue Black 9 Blue 8 11 6 In 2 Blue Black 9 Orange 8 12 Spare Blue White Red SP1 Order Wire Blue White Black SP2 1 Out 1 Orange White 4 Blue 3 1 2 Out 1 Orange Wh...

Страница 40: ...orresponds to the T1 Side 2 In pair in Figure 14 The wiring from the cable stub entry to the card cage connectors and to the order wire connector is factory installed The wiring diagram shown in Figure 14 is located on the inside of the stainless steel dome for easy reference Figure 14 HRE 506 Interface Wiring Diagram and Cable Assignments SLOT 1 WHITE BLUE SLOT 2 WHITE ORANGE SLOT 3 WHITE GREEN S...

Страница 41: ... full T1 HDU 439 or HDU 437 doublers must be limited to six without full solar load or five with full solar load The fractional doublers HDU 219 and HDU 217 and the full T1 microdoublers HDU 409 and HDU 407 comply with the TA when all six slots are occupied with full solar load When mixing various repeaters and doublers in the same enclosure assign the thermal load as shown in Table 4 Four T1 repe...

Страница 42: ...e first rule is not applicable then make all the spans the same electrical length same 196 kHz loss This minimizes span loss and maximizes operating margin resulting in the optimum transmission performances If specific application constraints preclude using Rule 2 or two different circuit layout choices have the same maximum span loss then use Rule 3 Rule 3 To minimize the power consumption and di...

Страница 43: ...but may provide false indications when trouble occurs Follow normal procedures as required Pre Splicing Procedure Perform the following steps to pre splice the enclosure cable stub 1 Strip a sufficient length of outer jacket aluminum shield and mylar sheath from the cable stub 2 Strip the main cable as required by the cable manufacturer 3 Install shield bonding connectors in accordance with standa...

Страница 44: ...nnect the CO side of the main cable to the CO side of the cable stub with a straight splice as shown in Figure 16 Figure 16 Dress Splice in Splice Case When the air temperature is low warm the cable pairs to aid in removing grease by cleaning the stub in a heated enclosure or by using a heat gun to apply warm air to the pairs Avoid applying excessive heat which could deform the insulation on the p...

Страница 45: ...e sequence of the cable stub in relation to the pair count and main cable 8 Roll back and tape the screen divider from the cable stub 9 Perform any cable tests required by local practice Post Splicing Procedure The post splice procedure involves the following steps 1 Starting at the cable stub butt of the CO cable stub wrap the pairs on one side of the screen with 3 4 inch self bonding rubber tape...

Страница 46: ...b screen in the same manner 7 Cut the cable stub screen divider approximately 6 inches from the cable stub butt 8 Fold each corner at a 45 angle to the center of the screen as shown in Figure 18 Figure 18 Screen Folding Diagram 9 Fold the screen divider back on itself several times and tape it to prevent it from unfolding 10 Position the folded taped screen divider between the spliced and taped Gr...

Страница 47: ...ing stress ADC recommends replacing the LPU board for that plug To Replace LPU arrestor Boards perform the following steps 1 Clean the dome cover and clamp of dust and debris 2 Remove the clamp and dome cover as described in Opening the Enclosure on page 20 3 Remove the defective LPU board 4 Insert a new LPU board in the vacant position 5 Replace other defective LPU boards in the same manner Note ...

Страница 48: ...t bag 132 1013 01 HRE 506 List 2 Security Cover Qty 1 Security Cover 132 1014 01 Metal Locking Clamp O Ring Desiccant Qty 1 Dome Cover O Ring Qty 1 V Band Locking Clamp Qty 2 Desiccant 2 unit bag 132 1038 01 Valve Kit Metal Qty 2 Pressure Release Valve PRV Qty 2 Breather Vent Valve BVV Qty 2 Air Stem Valve ASV and Cap Qty 2 Air Pressure Cutoff Valve PCV Qty 2 Air Intake T Valve Caps Qty 2 Desiccan...

Страница 49: ...rning it counterclockwise then remove the PRV by hand If the adapter nut becomes loose tighten it to a torque of 60 inch pounds 3 Check that the O ring in the adapter s inner well has remained in place If not reseat it 4 Thread the new PRV into the adapter Do not crossthread 5 Grip the adapter nut with a 3 4 inch wrench and the PRV with a 1 2 inch wrench and tighten the the PRV to 120 inch pounds ...

Страница 50: ...ceed as follows 1 Grip the adapter nut with a 3 4 inch wrench and the ASV with a 7 16 inch wrench 2 While holding the adapter nut steady it should not be moved loosen the ASV by turning it counterclockwise and then remove the valve by hand If the adapter nut becomes loose tighten it to a torque of 60 inch pounds 3 Check that the O ring in the adapters inner well has remained in place If not reseat...

Страница 51: ...om the body housing until completely disengaged Some resistance will occur as the stem s O rings rub against the walls of the body housing 4 Check that the O ring remains attached to the threaded tip of the body housing 5 The replacement PCV assembly comes as a unit which includes the limiting nut adjustment knob and all O rings Do not attempt to disassemble it 6 Insert the valve stem into the bod...

Страница 52: ...Turn Up and Testing Network Monitoring upstream or downstream Power Monitoring and Remote Surveillance Service Maintenance Agreements Systems Operation BIA Technical Assistance Center 800 638 0031 USA and Canada or 714 730 3222 Fax 714 730 2400 Email wsd_support adc com Technical Information System Network Configuration Product Specification and Application Training product specific Installation a...

Страница 53: ...ent Valve TX Transmit cm Centimeter VBR Variable Bit Rate CO Central Office XMT Transmit CP Customer Premises V Voltage dB Decibel EDU E1 Doubler Unit EMI Electromagnetic Interference ERU E1 Remote Unit ESD ElectroStatic Discharge ETPR Extended Thermal Plastic Rubber HDSL High bit rate Digital Subscriber Line HLU HiGain Line Unit HRU HiGain Remote Unit HRE HiGain Remote Enclosure HTC HiGain Test C...

Страница 54: ...Appendix D Abbreviations 150 506 100 03 46 March 28 2000 HRE 506 List 1 and List 2 ...

Страница 55: ...or shipment of replacement products to Buyer unless no trouble is found NTF in which case the Buyer will pay transportation charges ADC may use reconditioned parts for such repair or replacement This warranty does not apply to any product which has been repaired worked upon or altered by persons not authorized by ADC or in ADC s sole judgment has been subjected to misuse accident fire or other cas...

Страница 56: ...ED FIRM ISO 9001 TL 9000 ADC DSL Systems Inc 14402 Franklin Avenue Tustin CA 92780 7013 Tel 714 832 9922 Fax 714 832 9924 Technical Assistance Tel 800 638 0031 Tel 714 730 3222 Fax 714 730 2400 DOCUMENT 150 506 100 03 H_ 2T 1240632 ...

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