Yes, you can use a single CAT6 cable for both phone and WiFi connections.
Yes, you can use a single CAT6 cable for both phone and WiFi connections.
Hi, I recently installed a Cat6 cable inside my walls and linked it to my room. The router is far away from my space and is located on the ground floor, where the network signal is weakest. I planned to check internet speed both in the basement and upstairs, which worked well—up to 20mbps without the DSL line. Thinking about moving the whole router up to the attic (and realizing I can't just swap the SD card), I considered connecting the router from the attic down to the ground floor via another router to spread the connection through WiFi. The expected boost would be around 40mbps, which seems impressive for my current setup. My ISP offers a phone line, so I have that too. However, because there isn’t enough wall space for a separate cable, I thought splitting the Cat6 into two pairs—four wires for the phone and two for the Ethernet redistribution—might be an option. Is this even feasible? The color-coding of the wires isn’t clear, but if we assume they are, it could work.
The modem or router needs to stay in the attic since it handles incoming signals. The phone would then be located farther away from the router, yet still connected. The level of interference in this situation is something to consider.
The diagram suggests a VoIP setup? Your system lacks a passthrough feature? I’d check if your ISP can supply one or if you can arrange a suitable alternative. The VoIP phones we use are PoE powered, supporting Ethernet passthrough, meaning only one cable is needed for the phone and your PC.
You can indeed operate four separate ether connections through one cable. A 10/100 Half Duplex needs just one pair, while all the required pins can be connected directly. If you view it from above, Pin 1 sits on the left. Orange Stripe, Orange. This setup provides 10/100 Half Duplex capability. For Full Duplex, use a two-pair crossover cable... Side A Orange Stripe, Orange, Green Stripe, Open, Open, Green. Side B Green Stripe. Green, Orange Stripe, open, open, Orange. These configurations keep Blue and Brown pairs free for additional links or analog lines. The second connection could resemble A: Brown Stripe, Brown, Blue Stripe open, Blue B: Blues Stripe, Blue, Brown Stripe, open, Open, Brown. *Note these are crossover designs. Most NICs will detect and switch TX/RX pairs automatically, allowing a straight-through patch. For consistency, ensure both ends match the same pattern.*
For a single ether link full duplex connection as illustrated, use the Blues for the phone line one and the browns for the other. I recommend assembling "pig tails" at both ends. In short, construct a "Y" connector. At one end, connect an RJ45 Male to the wall jack; the split ends should feature RJ45 or RJ11 (4-conductor phone jack) female jacks. One jack per function—this allows a four-port splitter if desired.
Keep in mind that this will restrict the network link to a maximum of 100 megabit per second. A full gigabit connection needs all four cables.
Sure, I understand. I’ll wait until grapes begin to grow on the vines before expecting a gigabit connection. That should work for me in the meantime.