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Network Cable Tester

2 years ago 2465
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This is an automatic Cat6 / Cat5 network cable tester designed using NE555 timer and 4017 decade counters. This unit test all 8 wire lines of twisted pair network cable and indicate pass/fail status with single LED.

We design this unit to test network connectivity issues in Cat6 / Cat5 cable systems and it is capable to check both crossover and straight-through type network cables.

The recommended way to construct this circuit is on PCB. Both Master and Salve units need to be build on two separate boards. To perform test one end of the network cable must connected to the Master unit and other end need to be connected to the Slave unit. After connecting both Master and Slave units press "START-TEST" (S1) button to perform the test. Status of the cable is indicated through LED2 (PASS indicator).

Test time of this unit can adjust by varying values of R1, R2 and C1.





ID Name Designator Footprint Quantity
1 NE555 IC1 DIL-08 1
2 2.2MFD 16V C1 E5-4 1
3 39K R1 02045 1
4 5.6K R2,R10,R11 02045 3
5 0.1MFD 25V C2,C4,C5 C050-025X075 3
6 10K R3,R5,R7 02047 3
7 BC548* Q1,Q2,Q3 TO92-EBC 3
8 22K R4 020710 1
9 4017 IC2,IC3 DIL16 2
10 4.7MFD 16V C3 E2,5-6 1
11 10-XX S1 B3F-10XX 1
12 RJ45 J1,J3 RJ45-8 2
13 10K R6 02045 1
14 1N4148 D1,D2,D3,D4,D5,D6,D7,D8 DO35-10 8
15 22K R8 02047 1
16 10K R9 020710 1
18 DC-IN J2 DCJ0202 1




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Comments (1)

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