computer network

1. FALAKATA POLYTECHNIC
GOV. OF WEST BENGAL
Ethernet cable
Presented By -
Name- Manoj Barai
Dept- ETCE
Year- 3rd , Sem- 6th

2. ⚫How towire
⚫ Straight through
⚫ Crossover
2
⚫Introduction
⚫ Ethernet Cable
⚫ Category
Computer Networking & Data Communication

3. ⚫The name, Ethernet
Cable, always refers to
the following category:
⚫ Category 5
⚫ Category 5e
⚫ Category 6
⚫ Or morethan those
categories.
3

4. Category Data Rate Signal Frequency Standard
Cat5 100 Mbps 100 MHz TIA/EIA
Cat5e 100 Mbps /1 Gbps 100 MHz TIA/EIA-568-B
Cat6 1Gbps / 10 Gbps 250 MHz TIA/EIA-568-B
Cat6a 1Gbps / 10 Gbps 500 MHz
ANSI/TIA/EIA-
568-B.2-10
• TIA/EIA is a set of three telecommunications standards
from the Telecommunications Industry Association.
• (TIA - Telecommunications Industry Association)
• (EIA - Electronic Industry Association)
4

5. OT 8/21/2012 5
⚫It iscomposed of 4-pair
twistwirings.
⚫ Orange
⚫ Green
⚫ Blue
⚫ Brown

6. RJ - 45
Connector
Identify The Pin 1

7. Color Pin (T568B)
White/Orange 1
Orange 2
White/Green 3
Blue 4
White/Blue 5
Green 6
White/Brown 7
Brown 8
• You can use the order of rainbow colors to
memorize the order of this wiring.
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8. Pin Usage
1 Transmission (Tx+)
2 Transmission (Tx-)
3 Receive (Rx+)
4 --
5 --
6 Receive (Rx-)
7 --
8 --
• We can use the concept to justify the order of the wiring
colors of straight through and crossover.
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9. ⚫Prepare the materialsand tools.
⚫ Cable & RJ-45 (registered jack ) plugs
⚫ Scissors
⚫ Crimping tool
9
Amitava Nag Dept. Of IT AOT
For RJ-45 plug.
Crimping tool

10. ⚫Stripoff suitable length of thecablesheath.
⚫ About 2-2.5 cm
⚫ You can mark the position first.
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11. ⚫Align thecolored wires according to the specific order.
(Laterwewill talk about.)
1 2 3 4 5 6 7 8
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12. ⚫Straight Through
⚫ All orderof thewirings is thesameas theotherside.
1→8
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
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13. Host A Host B
Pin Usage Color Color Usage Pin
1 Tx+ Tx+ 1
2 Tx- Tx- 2
3 Rx+ Rx+ 3
4 -- -- 4
5 -- -- 5
6 Rx- Rx- 6
7 -- -- 7
8 -- -- 8
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14. ⚫Crossover
⚫ We need tochange theorderof the transmission and
receiving wirings.
1→8
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
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15. Host A Host B
Pin Usage Color Color Usage Pin
1 Tx+ Tx+ 1
2 Tx- Tx- 2
3 Rx+ Rx+ 3
4 -- -- 4
5 -- -- 5
6 Rx- Rx- 6
7 -- -- 7
8 -- -- 8
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16. ⚫Trim all thewires to the same length.
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17. ⚫Insert thewires into the RJ45 plug.
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18. ⚫Crimp the RJ45 plug with thecrimping tool.
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19. ⚫Verify theorderof thewires is correctand all thewires
arecorrectly making good contactwith the metal
contacts in the RJ45 plug.
Correct
Incorrect
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20. ⚫Cutthecable intosuitable length and repeat the below
steps for theotherside.
⚫ Please be surewhat kind of thecable you arewiring
⚫Testing
Amitava
Straight Through Crossover 20