E1-to-RJ45 » History » Version 1
Anonymous, 02/19/2016 10:47 PM
Draft of the howto
| 1 | 1 | == Howto build your E1<>RJ45 cable == |
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| 2 | |||
| 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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| 16 | |||
| 17 | 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 you cable. |
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| 18 | |||
| 19 | # FIXME images |
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| 20 | |||
| 21 | '''Two:''' |
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| 22 | |||
| 23 | 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 that you got the correct wires. Cut off the other wires we do not need them (yet). |
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| 24 | |||
| 25 | # FIXME images |
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| 26 | |||
| 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 | '''Four:''' |
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| 33 | |||
| 34 | Now you can put everything on the first part of the cable and assemble it. Use a soldering-iron to fixate the each of the two pins of the plug with your wires. |
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| 35 | |||
| 36 | # FIXME images |
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| 37 | |||
| 38 | '''Five:''' |
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| 39 | |||
| 40 | Repeat step '''three''' and '''five''' to build the second plug. |
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| 41 | |||
| 42 | # FIXME images |
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| 43 | |||
| 44 | '''Done.''' |
