Elenco Electronics TCT-255K Manuel d'instructions

MULTI-NETWORK CABLE TESTER KITMODEL TCT-255KElenco Electronics, Inc.Assembly and Instruction ManualCopyright © 2001 Elenco Electronics, Inc. 753089

1. Connect the battery to the battery snap.2. Set the voltmeter to read 20VAC and connect theCOM lead to the negative (–) side of the batteryand the V

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

1. Connect the battery to the battery snap.2. Set the voltmeter to read 20VDC and connect theCOM lead to the negative (–) side of the batteryand the V

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

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 LEDs shouldbe blinking at a frequency of approximately 8Hz.3. Test the

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

SECTION E - TERMINATORThe terminator uses four diodes to identify thepolarity of the input signals. The diodes are placedin series with wires 1-8, 2-

-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 5960201 Button Cap 6220061 Case Top Tester 6231141* Case Top T

Straight Cable1.Connect one end of the straight cable to themodular jack on the PC board of the terminator andthe second end to the PC board of the ca

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

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

-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 lights up, you

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

IDENTIFYING RESISTOR VALUESUse the following information as a guide in properly identifying the value of resistors.IDENTIFYING CAPACITOR VALUESCapacit

-3-CONSTRUCTIONIntroductionAssembly of your TCT-255 Multi-Network Cable Tester Kit will prove to be an exciting projectand give you much satisfaction

-4-What Good Soldering Looks LikeA good solder connection should be bright, shiny,smooth, and uniformly flowed over all surfaces.Soldering a PC board1

PARTS LIST - SECTION ARESISTORSQty. Symbol Description Color Code Part #2 R12, R17 1kW 5% 1/4W brown-black-red-gold 1410001 R16 5.6kW 5% 1/4W green-bl

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 THE FO

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 18kW 5% 1/4W brown-gray-orange-gold 1518001 R14 100kW 5% 1/4W brown-blac