Elenco DataCom Tester Kit Manuel d'utilisateur

MULTI-NETWORK CABLE TESTER KITMODEL TCT-255KCopyright © 2013, 2001 by ELENCO®All rights reserved. REV-D 753089No part of this book shall be

! 1. Connect the battery to the battery snap.! 2. Set the voltmeter to read 20VAC and connectthe COM lead to the negative (–) side of thebattery and t

Figure JInsert the IC socket into the PC board with thenotch in the direction shown on the toplegend. Solder the IC socket into place.Ins

! 1. Connect the battery to the battery snap.! 2. Set the voltmeter to read 20VDC and connectthe COM lead to the negative (–) side of thebattery and

-12-PARTS LIST - SECTION DRESISTORSQty. Symbol Description Color Code Part #! 8 R1-R8 200Ω 5% 1/4W red-black-brown-gold 132000CAPACITORSQty. Symbol Va

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

-14-ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD (cont.)Spacer(see Figure M)D9 - LEDD10 - LEDD11 - LEDD12 - LEDD13 - LEDD14 - LEDD15 - LEDD16 - L

! 1. Connect the battery to the battery snap.! 2. Push the switch SW1. Two vertical LEDsshould be blinking at a frequency ofapproximately

-16-PARTS LIST - SECTION ESEMICONDUCTORSQty Symbol Value Description Part #! 4 D1-D4 1N4148 Diode 314148MISCELLANEOUSQty Symbol Description Part #! 1

SECTION E - TERMINATORThe terminator uses four diodes to identify thepolarity of the input signals. The diodes are placedin series with wir

-18-ASSEMBLE THE TELECOM CABLESFor testing and troubleshooting the tester, you need to assemble straight and cross-pinning cables.For cutting, strippi

GENERAL DISCUSSIONYou can see a block diagram of the TCT-255 in Figure 1 below.The TCT-255 Cable Tester has five basic blocks:1. Power SupplyIt powers

-19-PARTS LIST - SECTION GMISCELLANEOUSQty. Symbol Description Part #! 2 F to BNC Adapter 596020! 1 Button Cap 622006! 1 Case Top Tester 623114! 1* Ca

Straight Cable! 1.Connect one end of the straight cable to themodular jack on the PC board of the terminatorand the second end to the PC

-21-SECTION G - FINAL ASSEMBLY OF TESTER!Push the button cap onto the switch as shown in Figure O.! Mount the PC board to the top case, as shown inFig

-22-M3 PhillipsScrew! Insert the M3 x 10mm machine phillips screw intothe battery cover hole, as shown in Figure S, andtighten.! Peel the backing off

-23-CATEGORY OF CABLE• Unshielded communication cable with RJ-11 andRJ-45 connectors.• Ethernet 10 Base-T, Token Ring, EIA/TIA-568A/B,AT&T 258A, a

-24-Configurationfor TestingCommunicationCableConfigurationfor TestingCoaxial Cable1. Connect one end of the cable to be tested to theterminator and t

-25-Ethernet10Base-TEIA/TIA-568A EIA/TIA-568BAT&T 258A8-PositionToken RingUSOC USOC(Prs. 1,2 & 3)(Y) 1(G) 2(R) 3(BL) 4(Y) 1(G) 2(R) 3(BL) 4123

-26-GENERAL MAINTENANCETo clean, wipe the case with a damp cloth anddetergent (do not use abrasives or solvents).When the Lo Batt. LED l

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-2-Warning:If the capacitor isconnected withincorrect polarity, itmay heat up andeither leak, orcause the capacitorto explode.IDENTIFYING RESISTOR VAL

-3-CONSTRUCTIONIntroductionThe most important factor in assembling your TCT-255 Multi-Netwok Cable Tester Kit is goodsoldering techniques. Using the p

-4-A poorly soldered joint can greatly affect small current flow in circuits and can cause equipment failure. You can damagea PC board or a component

PARTS LIST - SECTION ARESISTORSQty. Symbol Description Color Code Part #! 2 R12, R17 1kΩ 5% 1/4W brown-black-red-gold 141000! 1 R16 5.6kΩ 5% 1/4W gree

Figure BMount the LED with the tubing andplastic spacer to the PC board asshown. Note the flat side of theLED and the PC board marking.ASSEMBLE

SECTION A - POWER SUPPLYWhen the SW1 (test button) is pushed, capacitor C2(see schematic diagram, Figure 1) is charged to thebattery voltage. Transist

PARTS LIST - SECTION BRESISTORSQty. Symbol Description Color Code Part #! 1 R13 18kΩ 5% 1/4W brown-gray-orange-gold 151800! 1 R14 100kΩ 5% 1/4W brown-