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ADC PG-Plus PRL-784, Техническая практика

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Fault Isolation

SCP-PRL784-022-03H 

16

January 6, 2003

 PG-Plus PRL-784

S

UBSCRIBER

 R

EPORTED

 F

AULTS

At the CO, you can use the Craft interface to initiate a SDT to determine the cause of any of the following 
problems. The SDT test performs Hazardous Potential, Foreign Voltage, Resistive Faults, Receiver Off-Hook, and 
Ringers Tests. At the customer site, the following sections provide procedures for isolating faults, based on 
subscriber reports.

No dialtone, 

 

can not dial 

•

Short-circuit or open-circuit

•

faulty COLU or RT

1

At the CO using the Craft screen, select TEST option, and view the test results. 
The tests run are for Hazardous Potential, Foreign Voltage, Resistive Fault, and 
CPE Termination.

2

At the RT, lift the subscriber pair at the RT by opening the RJ-11 connector on the 
Integrated Protector Module. If dialtone is present at the RT and calls can be 
placed, the fault is in the subscriber side. Check for shorts or opens towards the 
subscriber or on the customer premise.

3

If dialtone is not present with the RJ-11 test connector lifted, lift the jumper in the 
CO between the CO switch and the COTS. If dialtone is present at the switch, 
replace the COLU. 

4

If after replacing the COLU the dialtone is still not present, the fault is in the RT. 
Replace the RT.

Phone does 

 

not ring 

•

high-resistance short on subscriber drop (REN load exceeded, see Specification table)

•

faulty RT or COLU

1

At the CO, using the Craft interface, go to the COLU Main Screen to verify the 
correct operation of the COLU. If you cannot view the COLU Main Screen, a 
communication error exists indicating a faulty COLU. Remove and re-insert the 
COLU. 

2

Go to the Test option, and select the desired circuit to test.

3

View the SDT results. Refer to the Test Submenu section for specific results.

4

At the RT, check for ringing at the RT with the RJ-11 test jack open. If ringing is 
not present, check for ringing on another line terminated on the same RT. If 
ringing is present on other lines, check for high-resistance shorts on the subscriber 
drop. If no high resistance shorts, replace the RT.

5

If ringing is not present on another circuit terminated on the RT, lift the jumper 
between the CO switch and the COTS. If ringing is present, replace the COLU. If 
ringing is not present, the fault is in the switch.

Содержание PG-Plus PRL-784

Страница 1: ...TELEPHONE NETWORK INTERFACE CUSTOMER ACCESS PG PLUS TECHNICAL PRACTICE 2 POTS INDOOR OUTDOOR NID SECTION SCP PRL784 022 03H Model List CLEI Code PRL 784 2B S9MSCLAA...

Страница 2: ...nc 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...

Страница 3: ...is short or irregular contact ADC as described in Returns on page 18 If you must store the equipment for a prolonged period store the equipment in its original container Notes indicate information ab...

Страница 4: ...Inspecting Your Shipment SCP PRL784 022 03H January 6 2003 PG Plus PRL 784...

Страница 5: ...e RT 7 Reference Label 8 Attach the Frame Ground Wire 9 Attach the HDSL Tip and Ring Wires 10 Attach the POTS Drop Wires 11 Turn up and Testing 12 Close the Housing 13 Fault Isolation_________________...

Страница 6: ...SCP PRL784 022 03H ii January 6 2003 PG Plus PRL 784...

Страница 7: ...2 Mounting the RT 4 3 Securing the Customer Access Door 6 4 Securing a Line Module 7 5 Reference Label 8 6 Attaching the Frame Ground Wire 9 7 Attaching the HDSL Tip and Ring Wires 10 8 Inserting the...

Страница 8: ...SCP PRL784 022 03H iv January 6 2003 PG Plus PRL 784...

Страница 9: ...in the standalone mode with no other COTS circuit cards required Advanced features such as performance monitoring alarm reporting and testing require the addition of the PAU or the PMU Line power is p...

Страница 10: ...C to 65 C Humidity 5 percent to 95 percent noncondensing Altitude 200 ft MSL to 13 000 ft 60 m to 4 000 m Vibration NEBS Electrostatic Discharge Per GR 1089 CORE Power and Lightning Per GR 1089 CORE...

Страница 11: ...tom side and one small hole in the right hand grommet of the RT Be careful when installing or modifying telephone lines Dangerous voltages can be present It is unsafe to install telephone wiring durin...

Страница 12: ...e of the customer residence see Figure 2 For mounting on stucco or other suitable surfaces use the two No 10 x 1 inch anchor nuts from the kit Figure 2 Mounting the RT Mount the RT only as shown with...

Страница 13: ...igure 3 The tamper proof screw can be either of the following No 8 pan head pin and socket type that requires a 5 32 inch drilled hex key The No 8 pan head pin and socket type screw is preferred for i...

Страница 14: ...customer padlock hole in the Customer Access door hasp with a 3 8 inch diameter hole plug see Figure 3 Subscribers can place a padlock through the customer padlock hole drilled into the Customer Acces...

Страница 15: ...an RJ 11 test jack for isolating trouble to the network or subscriber Each POTS line is protected by a over voltage protected threaded binding post under the Telco cover HDSL and subscriber wiring are...

Страница 16: ...1 WHT ORG POTS 2 LINE 2 HDSL BLK YEL CAUTION PG Plus WARNING 2 POTS REMOTE TERMINAL INPUT 260VDC 0 1AMP R UL C US I T E E186258 THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES OPERATION IS SUBJECT...

Страница 17: ...n the left hand rubber grommet A 10 AWG 25 8 mm solid copper ground wire is recommended Figure 6 Attaching the Frame Ground Wire 3 Loosen and remove the top nut and three flat washers from the ground...

Страница 18: ...e wire stripper then carefully insert and loop the HDSL Ring wire in a clockwise direction between the top two washers on the HDSL Ring binding post 4 Tighten the HDSL Ring binding post nut with an in...

Страница 19: ...door and insert the subscriber wire pair through the cutout on the right side of the Line Module door The HDSL Tip and Ring wires which you installed in the previous section are not shown in this grap...

Страница 20: ...for 3 seconds The following start up sequence occurs after a 3 second delay COLU responds with start up voltage immediately RT detects HDSL line voltage then initiates the HDSL start up sequence PWR L...

Страница 21: ...Telco Access door until it is completely seated This is to avoid interference with the RT enclosure cover 4 Close the RT housing cover and secure both the Telco override screw and the slotted head Cus...

Страница 22: ...at the line length does not exceed the values supported see Specifications on page 2 The distances provide 10 7 BER with 6 dB of margin The distances supported over single gauge cable without the use...

Страница 23: ...been exceeded 4 Replace COLU and or the RT Margin LED Flashing distance limitation exceeded fault in HDSL line faulty RT 1 Initial installation check engineering records for distance between COTS and...

Страница 24: ...lifted lift the jumper in the CO between the CO switch and the COTS If dialtone is present at the switch replace the COLU 4 If after replacing the COLU the dialtone is still not present the fault is i...

Страница 25: ...a butt in set at the subscriber location one or both of these conditions exist loop length is too long refer to Specification table or the RT is faulty Can not hear can not be heard subscriber problem...

Страница 26: ...Call or write ADC s RMA Department to ask for an RMA number and any additional instructions Use the telephone number fax number or email address listed below Telephone 800 366 3891 Email Address rma...

Страница 27: ...ADC s address and the RMA Number you received from the RMA Department clearly on the outside of the carton and return to ADC DSL Systems Inc 14352 Franklin Ave Tustin CA 92780 7013 Attention RMA Numbe...

Страница 28: ...llation If this equipment does cause harmful interfer ence to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the int...

Страница 29: ...tral Office Terminal Shelf ESD Electrostatic Discharge HDSL High bit rate Digital Subscriber Line LED Light Emitting Diode MLT Mechanized Loop Test PAU PG Plus Alarm Unit PMU PG Plus Management Unit P...

Страница 30: ...World Headquarters ADC Telecommunications Inc 12501 Whitewater Drive Minnetonka Minnesota USA 55343 For Technical Assistance 800 366 3891 Sq 14 1251811...

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