Other: What is the difference between an Ethernet crossover and Audio crossover cable?
Translate pageQuestion: I'm making a CAT-5 cable to connect a HelixNet base station to a CellCom / Freespeak base station via 4-wire.
My question is, can I use an store bought Ethernet crossover cable or do I need to construct a special CAT-5 cable for this purpose?
Answer: There is a difference in the wiring between an Ethernet crossover cable and a AUDIO crossover cable. Clear-Com products typically use an audio crossover cable which is a specially wired CAT-5 cable where the audio pairs (green and blue) are switched at one end of the cable when an audio connect is established between two devices with 4-wire RJ45 connections.
An Ethernet CAT-5 cable is typically used to connect an Ethernet enabled device directly to a computer Ethernet jack.
Audio crossover cable
Audio crossover cable |
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4wire-RJ45 pin 3 (Audio out +) | 4wire RJ45 pin 4 (Audio in +) |
4wire-RJ45 pin 6 (Audio out -) | 4wire RJ45 pin 5 (Audio in -) |
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4wire-RJ45 pin 4 (Audio in +) | 4wire RJ45 pin 3 (Audio out +) |
4wire-RJ45 pin 5 (Audio in -) | 4wire RJ45 pin 6 (Audio out -) |