Elenco Telephone Line Analyzer Kit Manuel d'utilisateur Page 1

TELEPHONE LINE ANALYZER KITMODEL TT-400KAssembly and Instruction ManualElenco Electronics, Inc.Copyright © 1994 Elenco Electronics, Inc. Revised 2001

Modular JackCut off the yellow and black wires at the baseof the modular jack (they are not used). Cutthe red and green wires to 4” and strip 1/4” ofi

-10-TROUBLESHOOTING1. Be sure that all of the components have been mounted in their correct position.2. Be sure that all of the diodes have been insta

SIMPLIFIED INSTRUCTIONS(FOR MORE DETAIL, SEE DETAILED INSTRUCTIONS).LINE TEST1. Set the switch of the TT-400 to the LINE/RING position,and connect it

-12-When hung up, the telephone should have practically no effect on the telephone line.6. If the meter is still not in the LINE OK area with all tele

telephones on the same line are also hung up.3. The TT-400 meter should read in the LOOP OK area. If not, unplug each telephone one at a time. Ifunplu

-14-QUIZ1. The Central Office senses that service is being requested when . . .A - a dial tone is received.B - a current flows in the local loop.C -

Elenco Electronics, Inc.150 W. Carpenter AvenueWheeling, IL 60090(847) 541-3800http://www.elenco.come-mail: [email protected]

-1-INTRODUCTIONAre you planning to install a new telephone? Are you having a problem with a newly installed telephone? Thenthe Model TT-400 Telephon

-2-TELEPHONE OPERATIONThe primary purpose of the telephone is to transmitand receive voice signals allowing two people withtelephones to communicate w

-3-fixed rate. This switch is in series with the hook switch. Opening the switch interrupts the current in the localloop. A series of current pulses i

-4-RINGERAs shown in Figure 2, the ringer is connected across the tip and ring inputsin series with a capacitor to block the 48VDC. The ringer consist

IntroductionThe most important factor in assembling your Telephone Line Analyzer is good soldering techniques. Using theproper soldering iron is of pr

-6-ASSEMBLY INSTRUCTIONSINTRODUCTIONAssembly of your TT-400K Telephone Line Analyzer will prove to be an exciting project and give muchsatisfaction an

ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARDIn all of the following assembly steps, the components must be installed on the top legend side of th

-8-Mount the MeterTake off the four nuts, lockwashers and washers from the mounting screws on the meter. Insert the meterinto the case from the front.