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Need Help with Cat Cable Matchup

Motorman55

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Apr 10, 2016
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Location
South Jersey
We're moving soon and I need to temporarily move my computer from my loft office down to my living room.

I have the Tri-package cable set-up, TV/Computer/Phone.

The TV has its own cable/modem downstairs. I have a dedicated line up to my office loft for my computer and (land) phone which consists of a modem that the computer and the phone/answer machine is connected to.

I just want to extend the incoming cable to the modem another 25'. I don't need to fish thru any walls. I'm just going to run it across the loft floor and drop it down the wall to another desk in my living room.

The current cable has the following markings;

Beldon 9116 Duorobond (R) 11 75 OHM Series 6 1c18 E108998-BN UL CATV
or CM or C (UL) CM----FT1 I0471 17:52 ROHS

Can I get away with Cat-5 and a simple 2-way splitter ( I have plenty of older Cat-5 Cable and splitters) or do I have to use Cat-6 and a special splitter or connector?

I have Home Depot and Walmart local to me.

Thanks
 
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wyliesdiesels

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Modesto, CA
That cable is NOT category ethernet type cable.

The giveaway is the 75ohm rating.

It is coaxial cable. CATV = cable TV.

You need RG6.

Buy a preterminated RG6 cable of appropriate length and a barrel connector.

BTW you cant use splitters with ethernet cable that is being used for network DATA transmission.
 
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75gmck25

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Jul 21, 2014
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Location
Alexandria, VA
Use the 25 foot RG-6 (as already mentioned) to extend your current cable, and tighten down the barrel connector between the two cables with a small wrench (best) or pliers to make sure it has good connection. Then just screw the new cable on to the same port on the cable modem.

Turn off the modem and all connected devices (computers, routers) before they are moved. Then reconnect the modem in the new location and turn it on. The modem will have lost connectivity with the cable company when you disconnect it, so give it a couple of minutes to re-establish the connection. Most modems will have a light that flashes, and then finally goes to solid green. Green typically means its connected to the cable company and it has received an IP address.

Then turn each connected device back on in series. For example, turn on a router first, then turn on devices connected to the router. This will let the system reestablish the primary IP address of the modem (from the cable company), and then assign DHCP addresses to each device. If you have wireless connections to PCs or printers, turn each of those devices off also, and let them get assigned a new DHCP address.

Bruce
 

grantw

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Nov 10, 2016
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249
Location
Bay Area, CA
If you don't mind 100Mbit links, you can hack one cat5/6 cable to provide two links. Yeah, the twist per inch will be off, but if you really NEED 2 lines, it's possible to "split" a cat5/6 cable.

pin 1236 of the RJ45 are used for 10/100 Mbit connections, just be sure to keep the same color on pins 1/2 and 3/6

I have even used a old 10 pair telco trunk for short runs of ethernet. An old apartment building I lived in had 10 pair to each apartment for things like the old intercom system and gate controls. A few of us decided to go in on 150Mbit comcast business for internet, so we got the super to let us install the cable modem in the mpoe and tap the telco patch to get the 4 of us ethernet. we all had a 100mbit link to the mpoe so it worked out quite well. No one person could saturate the line. :)
 
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wyliesdiesels

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Modesto, CA
If you don't mind 100Mbit links, you can hack one cat5/6 cable to provide two links. Yeah, the twist per inch will be off, but if you really NEED 2 lines, it's possible to "split" a cat5/6 cable.

pin 1236 of the RJ45 are used for 10/100 Mbit connections, just be sure to keep the same color on pins 1/2 and 3/6

I have even used a old 10 pair telco trunk for short runs of ethernet. An old apartment building I lived in had 10 pair to each apartment for things like the old intercom system and gate controls. A few of us decided to go in on 150Mbit comcast business for internet, so we got the super to let us install the cable modem in the mpoe and tap the telco patch to get the 4 of us ethernet. we all had a 100mbit link to the mpoe so it worked out quite well. No one person could saturate the line. :)

Except the cable he is extending is NOT CAT6. Its Coax
 
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