FAQs FOR PHONE SYSTEM

    How do I install phone system wiring?

    What is Tip and Ring?

    What is a 66 block?

    What is a 110 block?

How do I install phone system wiring?

Phone system wiring is not complex to work with and is very safe, due to the low voltages involved. The most complex part of installing business phone system wiring is complying with the defined standards in place for phone wiring. The main difficulty with phone system wiring standards is that there are so many of them. When installing additional telephone wiring into an existing facility, it is usually best to determine which telephone wiring standard is currently in use and conform to that standard. When installing phone system wiring into a new facility, EIA/TIA 568 is the standard to utilize.

The green/red and orange/black Standard for Telephone Wiring

Many existing homes have only 2 pair (4 wire) telephone wiring. In that the Green wire is Tip and the Red wire is Ring. In the second pair the Black wire is Tip and the Yellow wire is Ring.

The EIA/TIA 568B Standard for Phone System Wiring

Pin (Jack)	Pin (Plug)	Color	Pair
1	8	White/Orange	Tip 2
2	7	Orange	Ring 2
3	6	White/Green	Tip 3
4	5	Blue	Ring 1
5	4	White/Blue	Tip 1
6	3	Green	Ring 3
7	2	White Brown	Tip 4
8	1	Brown	Ring 4

The EIA/TIA 568A Standard for Phone System Wiring

Pin (Jack)	Pin (Plug)	Color	Pair
1	8	White/Green	Tip 3
2	7	Green	Ring 3
3	6	White/Orange	Tip 2
4	5	Blue	Ring 1
5	4	White/Blue	Tip 1
6	3	Orange	Ring 2
7	2	White Brown	Tip 4
8	1	Brown	Ring 4

The USOC (Universal Service Order Code) 8 Wire Standard for Telephone Wiring

Pin (Jack)	Pin (Plug)	Color	Pair
1	8	White/Brown	Tip 4
2	7	White/Green	Tip 3
3	6	White/Orange	Tip 2
4	5	Blue	Ring 1
5	4	White/Blue	Tip 1
6	3	Orange	Ring 2
7	2	Green	Ring 3
8	1	Brown	Ring 4

The USOC (Universal Service Order Code) 6 Wire Standard for Telephone Wiring

Pin (Jack)	Pin (Plug)	Color	Pair
1	6	White/Green	Tip 2
2	5	White/Orange	Tip 2
3	4	Blue	Ring 1
4	3	White/Blue	Tip 1
5	2	Orange	Ring 2
6	1	Green	Ring 3

The 25 pair Business Phone System Wiring Standard

Pin (Jack)	Pin (Plug)	Color	Pair
1	50	Blue/White	Ring 1
2	49	Orange/White	Ring 2
3	48	Green/White	Ring 3
4	47	Brown/White	Ring 4
5	46	Slate/White	Ring 5
6	45	Blue/Red	Ring 6
7	44	Orange/Red	Ring 7
8	43	Green/Red	Ring 8
9	42	Brown/Red	Ring 9
10	41	Slate/Red	Ring 10
11	40	Blue/Black	Ring 11
12	39	Orange/Black	Ring 12
13	38	Green/Black	Ring 13
14	37	Brown/Black	Ring 14
15	36	Slate/Black	Ring 15
16	35	Blue/Yellow	Ring 16
17	34	Orange/Yellow	Ring 17
18	33	Green/Yellow	Ring 18
19	32	Brown/Yellow	Ring 19
20	31	Slate/Yellow	Ring 20
21	30	Blue/Violet	Ring 21
22	29	Orange/Violet	Ring 22
23	28	Green/Violet	Ring 23
24	27	Brown/Violet	Ring 24
25	26	Slate/Violet	Ring 25
26	25	White/Blue	Tip 1
27	24	White/Orange	Tip 2
28	23	White/Green	Tip 3
29	22	White/Brown	Tip 4
30	21	White/Slate	Tip 5
31	20	Red/Blue	Tip 6
32	19	Red/Orange	Tip 7
33	18	Red/Green	Tip 8
34	17	Red/Brown	Tip 9
35	16	Red/Slate	Tip 10
36	15	Black/Blue	Tip 11
37	14	Black/Orange	Tip 12
38	13	Black/Green	Tip 13
39	12	Black/Brown	Tip 14
40	11	Black/Slate	Tip 15
41	10	Yellow/Blue	Tip 16
42	9	Yellow/Orange	Tip 17
43	8	Yellow/Green	Tip 18
44	7	Yellow/Brown	Tip 19
45	6	Yellow/Slate	Tip 20
46	5	Violet/Blue	Tip 21
47	4	Violet/Orange	Tip 22
48	3	Violet/Green	Tip 23
49	2	Violet/Brown	Tip 24
50	1	Violet/Slate	Tip 25

What is Tip and Ring?

Tip and Ring are telephony slang for the two wires which make up the electrical circuit used for telephone wiring.
Tip is the nickname for the electrically positive wire and Ring is the nickname for the electrically negative wire.

What is a 66 block?

A 66 block is a punch-down block used to connect wiring for business phone systems and other low-speed and low-voltage wiring applications.
A punch-down tool is used to force solid wire into metal slots on the 66 block.
The newer 110 block is replacing the 66 block, although 66 blocks still work well for traditional voice telephone applications.

What is a 110 block?

A 110 block is a punch-down block used to connect wiring for phone systems, data network wiring, and other low-voltage wiring applications.

The 110 block improves on the 66 block by supporting higher frequencies and using space more efficiently.
A punch-down tool is used to force solid wire into metal slots on the 110 block.

FAQs FOR PHONE SYSTEM

How do I install phone system wiring?

What is Tip and Ring?

What is a 66 block?

What is a 110 block?

How do I install phone system wiring?

The green/red and orange/black Standard for Telephone Wiring

The EIA/TIA 568B Standard for Phone System Wiring

The EIA/TIA 568A Standard for Phone System Wiring

The USOC (Universal Service Order Code) 8 Wire Standard for Telephone Wiring

The USOC (Universal Service Order Code) 6 Wire Standard for Telephone Wiring

The 25 pair Business Phone System Wiring Standard

The 110 block improves on the 66 block by supporting higher frequencies and using space more efficiently.A punch-down tool is used to force solid wire into metal slots on the 110 block.

The 110 block improves on the 66 block by supporting higher frequencies and using space more efficiently.
A punch-down tool is used to force solid wire into metal slots on the 110 block.