Lan and telephone together

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Poga

Poga

Forerunner
The moron who did the wiring of my house did put cat 5 at my insistence but only to use it as telephone wires..:S now that i plan to use mtnl triband..i cant route the lan wires to different rooms.

So i want to use the same cat 5 cable for telephone as well as internetfor lan. esentially the question is "ARE ALL THE 4 PAIRS OF WIRES REQUIRED FOR CONNECTING LAN???" and please anwer in non-tech language as i understand it as much as any of you know TOBO-BATAG.

Lastly...does anyone know of a adsl+wifi router of high range as on testing my friends Netgear DG834g i found they do come through my reinforced(he calls them that) doors to my room...The buffalo WHR-HP-G54 could be tried but they r pricey and i got to purchase the adsl modem seperately.

I am counting on you geniuses....
 
How can a telephone work on CAT 5 cable, please can you verify the connectors of the cable. whether it is a RJ-11 connector or RJ-45 connector,

rj11-45.gif
 
no .. only two pairs are required, in fact iirc the other two were designed to be use with telephones, I know splitters are available for the purpose, or alternatively you could just use the same wire and split it between the two sockets
 
Thanks the indian and gaurish for your interest...

gaurish, the wire is cat5 but i use one pair per line using rj11 connector... found this great article which suggests a way to do it...real funny too...read it even if you dont want to do it...

posing the link hoping someone might find it helpful

Tech Info - Mixed LAN and Telephone wiring
 
the comp needs only 4 wires to be properly attached if its a 10mbps connection

u can use the rest for phone

but be careful cause the phone cable can distort the data in the net conn
 
I have used CAT5 and CAT6 for telephone :p but never used them simultaneously on one cable with LAN. However there is no reason why this should not work. Only problem will be that you will only be able to use your LAN on 10Mbps.

To use 100Mbps LAN you need all the 4 pairs. The wiring convention is 568A and 568B. For a straight through cable, you need to use 568A or 568B on both ends of the cable and for a crossover cable, you need 568A on one end and 568B on the other.

For 568A (100Mbps) -

pin 1 = striped green

pin 2 = solid green

pin 3 = striped orange

pin 4 = solid blue

pin 5 = striped blue

pin 6 = solid orange

pin 7 = striped brown

pin 8 = solid brown

for 568B

pin 1 = striped orange

pin 2 = solid orange

pin 3 = striped green

pin 4 = solid blue

pin 5 = striped blue

pin 6 = solid green

pin 7 = striped brown

pin 8 = solid brown

As you can see, for 568A and 568B, the difference is only the inverted pins 1,2,3 and 6. For 10Mbps network, the only wires (pins) which are used are pins 1,2,3 and 6.

To utilise the telephone and LAN with the same cable, get 2 RJ45 connectors and crimp only the pins 1,2,3 and 6 with the respective colored cables. Extract the other 4 cables and crimp them to 1 or 2 RJ11 clips and you can have a working telephone and LAN on the same cable.

Post here for any clarification.
 
SumitB said:
I have used CAT5 and CAT6 for telephone :p but never used them simultaneously on one cable with LAN. However there is no reason why this should not work. Only problem will be that you will only be able to use your LAN on 10Mbps.

To use 100Mbps LAN you need all the 4 pairs. The wiring convention is 568A and 568B. For a straight through cable, you need to use 568A or 568B on both ends of the cable and for a crossover cable, you need 568A on one end and 568B on the other.

For 568A (100Mbps) -

pin 1 = striped green

pin 2 = solid green

pin 3 = striped orange

pin 4 = solid blue

pin 5 = striped blue

pin 6 = solid orange

pin 7 = striped brown

pin 8 = solid brown

for 568B

pin 1 = striped orange

pin 2 = solid orange

pin 3 = striped green

pin 4 = solid blue

pin 5 = striped blue

pin 6 = solid green

pin 7 = striped brown

pin 8 = solid brown

As you can see, for 568A and 568B, the difference is only the inverted pins 1,2,3 and 6. For 10Mbps network, the only wires (pins) which are used are pins 1,2,3 and 6.

To utilise the telephone and LAN with the same cable, get 2 RJ45 connectors and crimp only the pins 1,2,3 and 6 with the respective colored cables. Extract the other 4 cables and crimp them to 1 or 2 RJ11 clips and you can have a working telephone and LAN on the same cable.

Post here for any clarification.
Click to expand...

TE's Certified Network Engineer:P

hey what you do man??

your knowledge in networking vast:)
 
SumitB said:
I have used CAT5 and CAT6 for telephone :p but never used them simultaneously on one cable with LAN. However there is no reason why this should not work. Only problem will be that you will only be able to use your LAN on 10Mbps.

To use 100Mbps LAN you need all the 4 pairs. The wiring convention is 568A and 568B. For a straight through cable, you need to use 568A or 568B on both ends of the cable and for a crossover cable, you need 568A on one end and 568B on the other.
Click to expand...

Even 100Mbps uses only 2 pairs IIRC.. Only 1000Mbps uses all 4 pairs.. anyways will check up n post back if i'm wrong...
 
Niks said:
Even 100Mbps uses only 2 pairs IIRC.. Only 1000Mbps uses all 4 pairs.. anyways will check up n post back if i'm wrong...
Click to expand...

I will be surprised but is possible! Do let me know if its true! Also provide some reading material if you do get it.:hap2:
 
SumitB said:
I will be surprised but is possible! Do let me know if its true! Also provide some reading material if you do get it.:hap2:
Click to expand...

It is.. I remembered reading abt it long ago.. Anyways i found this Fast Ethernet: 100Mbps Ethernet (IEEE 802.3u) Overview .. 100base-TX uses 2 pairs of the data grade medium(which is what we commonly use) while 100base-T4 uses 4 pairs of telephone grade medium..

Just do a google search for the no. of pairs of cat5 used in 100Mbps ethernet, there are lots of results mentioning it :hap2:

Edit: One more Network Connectivity - 100 Mbps Cabling Specifications

PS : Btw thanks to this, while searching, i came across that cat5e is better suited for gigabit ethernet than cat5.. Am currently getting my home wired for lan so made a note to go in for cat5e instead of cat5 which i was earlier thinking of..
 
Well in my experience, if I use 2 pairs of wires, my LAN gives me only 10Mbps. Its just another case of theory being different from practicals :D

Anyways, since you have provided me with links which claim to it being otherwise, I will give it another try and see if it holds true. Thanks for the links.
 
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