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| Need help matching CAT5 to 4-core instrument cable. | ||
| Author hgping Views 23 Posted at 2008/8/27 06:50 [View In Forum] | ||
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Hi all,ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi I have a setup where a Power Over Ethernet Network is connected to a towed instrument vechile behind a ship. The length of the cable can be up to 3km's long. The Ethernet extender works fine with CAT5 cable at these lengths, but not with the armored 4-core cable used in maritime applications.ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi The maritime cable has a typical capacitance of 20uF/1km @kHz between cores and a DC resistance of 188Ohms/km.ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi The CAT5 spec calls for a DC loop resistance of <188Ohm/km and a capacitance of 200pF/twisted pair/km.ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi My question:ciozztmhi ciozztmhi ciozztmhi Would it be possible to build a matching network that would match the Ethernet extender and receiver to the maritime cable? If so, what would be the design methology/steps be that I would need to follow?ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi Any advice would be greatly appreciated.ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi Best regards,ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi ciozztmhi André |
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