E1-to-RJ45 » History » Version 6
Anonymous, 02/19/2016 10:47 PM
1 | 1 | == Howto build your E1<>RJ45 cable == |
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3 | We used a Cat-7 Ethernet cable to build our E1<>RJ45 cable to connect the BTS with the BSC. |
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4 | |||
5 | Things you need: |
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6 | * one Cat-7 Ethernet cable |
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7 | * two twinax plugs (BR2) |
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8 | * some heat shrink tube |
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9 | * soldering-iron |
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10 | * multimeter (optional) |
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11 | * a sharp knife :) |
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12 | |||
13 | === Step-by-step guide === |
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14 | |||
15 | '''One:''' |
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17 | 3 | Take your cable and cut off one of the RJ45 connectors. Now use a ruler and make a slice so you can strip around 15 cm from your cable. |
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18 | 1 | ||
19 | 2 | [[Image(IMG_0960-1.JPG, 15%)]] [[Image(IMG_0960-2.JPG, 15%)]] |
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20 | 1 | ||
21 | '''Two:''' |
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23 | 4 | Split the wires from your cable. We need pin 1 and 2 for '''RX''' (green white/green) and pin 4 and 5 for '''TX''' (blue white/blue), you can use a multimeter if you are not sure you got the correct wires. Cut off the other wires we do not need them (yet). |
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24 | 1 | ||
25 | 2 | [[Image(IMG_0960-4.JPG, 15%)]] [[Image(IMG_0960-5.JPG, 15%)]] [[Image(IMG_0960-7.JPG, 15%)]] |
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26 | 1 | ||
27 | '''Three:''' |
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28 | |||
29 | Sort your twinax plugs to make sure you build them in the right order. ;)[[BR]] |
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30 | We used heat shrink tube to stabilize our cable around the plugs. |
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31 | |||
32 | 5 | [[Image(IMG_0960-9.JPG, 15%)]] [[Image(IMG_0960-11.JPG, 15%)]] |
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33 | [[Image(IMG_0960-12.JPG, 15%)]] [[Image(IMG_0960-17.JPG, 15%)]] |
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34 | 2 | ||
35 | 1 | '''Four:''' |
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36 | |||
37 | 5 | Now you can put everything on the first part of the cable and assemble it. Use a soldering-iron to fixate each of the two pins of the plug with your wires. You do not have to worry about the polarity inside the twinax plug. |
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38 | 1 | ||
39 | 5 | [[Image(IMG_0960-19.JPG, 15%)]] |
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40 | 1 | ||
41 | '''Five:''' |
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43 | Repeat step '''three''' and '''five''' to build the second plug. |
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45 | 2 | '''Done.''' |
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46 | 5 | ||
47 | 6 | [[Image(IMG_6379-1.JPG, 15%)]] |