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Telephone & Network Connectors & Adaptors

This page shows connectors and adaptors needed to wire a home for telephone, computer network, infrared, and control systems.

For more information on telephone wiring, see our tutorial on wiring residential telecommunications.

For specifics about wire color coding, jack pinouts, and general do's and don'ts about telephone and network wiring, see our wiring standards document.

Modular Plugs
Modular Plugs for Stranded Wire
Modular Plugs for Solid Wire

Modular Adaptors & Couplers
Modular Phone (4 Cond) Adaptors
Modular Data (8 Cond) Adaptors
Category 5 Modular Couplers
Category 5e Splice Box
Junction Box

Modular Breakout Devices
Line 12 to 1 & 2 Splitter
Line 1234 to 12 & 34 Splitter
Line 1234 to 13 & 24 Splitter
Line 1234 to 12, 21, 34, & 43 Splitter

Miscellaneous
DB9 to Modular Jack Adaptors
Super-Bee Crimp Connectors
UY & UR Telco Splices
Radio Interference Filter

Cable QuickLink	Patch	Bulk	Connectors Adaptors	Tools
Audio	Click!	Click!	Click!
Video/RF	Click!	Click!	Click!	Click!
Phone/Data	Click!	Click!	Click!	Click!

Modular Plugs

Modular Plugs for Stranded Wire

Top quality modular plugs.
For stranded flat cable or stranded twisted pair cable.
50u gold plated contacts
Six position jack is available with 4 or 6 conductors.
8 position jack is Category 5 rated (with proper cable).
Use this tool.

How Do I ... Choose the Right Modular Plug

Modular plugs come in two standard widths; 6 and 8 position. The 6 position width may only have 4, or even only 2 positions filled with metal contacts. (The "middle" positions are always the ones filled. Outer, unused positions are left empty.) Eight position plugs always have all 8 conductors loaded.

Modular plugs are designed to work with either stranded or solid conductor wire. The version designed for stranded wire has two "tines" that pierce the insulation and slip through the middle of the wire, pushing aside the individual strands. The version designed for solid conductor wire has three leaf "tines" that pierce the insulation, then snuggle alongside the solid conductor, clamping it in place.

If you use a modular plug designed for stranded wire on solid conductor wire, the tines will simply shear off the solid conductor, and will thus make intermittent, at best, contact.

When do you use solid or stranded conductor wire? The answer lies mostly in why stranded wire is made in the first place: Stranded wire is more flexible, and endures bending, flexing, and pulling better than solid conductor wire. So stranded wire is typically used in "outside the wall" applications where the cable is likely to be moved many times over the course of its life. Solid conductor wire is used inside the wall, since once the cable is laid in and terminated, it will not be moved or flexed.

Sold in boxes of 50 plugs.

EC-702004 Mod.Plug,6P4C,Str,Flt,50u,50ea	List 13.00 bag/50	$9.15 bag/50	Enter Qty bag/50
EC-702006 Mod.Plug,6P6C,Str,Flt,50u,50ea	List 13.00 bag/50	$9.15 bag/50	Enter Qty bag/50
EC-702008 Mod.Plug,8P8C,Str,Flt,50u,50ea	List 19.00 bag/50	0.225 lbs/bag/50 $13.95 bag/50	Enter Qty bag/50

Modular Plugs for Solid Wire

Top quality modular plugs.
For solid conductor twisted pair cable.
50u gold plated contacts
Six position jack is available with 4 or 6 conductors.
8 position jack is Category 5 rated (with proper cable).
Use this tool.

Sold in boxes of 50 plugs.

EC-702018 Mod.Plug,6P4C,Sld,Rnd,50u,50ea	List 11.50 bag/50	0.1188 lbs/bag/50 $8.75 bag/50	Enter Qty bag/50
EC-702020 Mod.Plug,6P6C,Sld,Rnd,50u,50ea	List 15.17 bag/50	$11.39 bag/50	Enter Qty bag/50
EC-702022 Mod.Plug,8P8C,Sld,Rnd,50u,50ea	List 30.00 bag/50	0.2 lbs/bag/50 $22.95 bag/50	Enter Qty bag/50

Modular Adaptors

AP*
Adaptors, Phone (4 Cond)

HomeTech Solutions

GC-APF2PF Adaptor,4C Female to 4C Female Cross-Wired, for voice use	List 0.96 each	0.44 lbs/each $0.77 each 25+ $0.64 each	Enter Qty each
GC-APMYPF Adaptor,4C Male to 2 4C Female	List 2.45 each	0.017 lbs/each $1.96 each 25+ $1.63 each	Enter Qty each
GC-APFYPF Adaptor,4C Female to 2 4C Fema	List 1.55 each	0.019 lbs/each $1.24 each 25+ $1.03 each	Enter Qty each

AD*
Adaptors, Data (8 Cond)

HomeTech Solutions

GC-ADF2DF Adaptor,8C Female to 8C Female Straight-Wired, for data use	List 2.00 each	0.0198 lbs/each $1.60 each 25+ $1.33 each	Enter Qty each
GC-ADMYDF Adaptor,8P Male to 2 8P Female	List 3.65 each	0.04 lbs/each $2.92 each 25+ $2.43 each	Enter Qty each
GC-ADFYDF Adaptor,8P Female to 2 8P Fema	List 12.00 each	0.0282 lbs/each $9.95 each	Enter Qty each

U50*
Category 5 Couplers

HomeTech Solutions

Join two category 5 cables.
Straight through and crossover versions available.
White case.
Extend Category 5 UTP Patch Cords without loosing Category 5 performance.
Meets EIA/TIA 568A Category 5 Standards.
Icon labels included for easy documentation.
PCB design for maximum reliability.
U.S. Patented.

UC-U508AWT In-Line Coupler, Straight Thru	List 10.56 each	0.0453 lbs/each $8.95 each	Enter Qty each
UC-U504CWT In-Line Coupler, Crossover	List 10.56 each	0.0453 lbs/each $8.95 each	Enter Qty each

512114
Category 5e Junction Box

HomeTech Solutions

Join two category 5e (or lower) cables.
Standard 110 style punchdown terminals.
Shielded box with strain-relief.
Double-stick tape or screw mounting (included).
Extend Category 5e UTP cable without loosing Category 5e performance.
PCB design for maximum reliability.
Dimensions: 2 1/2"W x 1 1/2"H x 1"D

We recommend not using this device! If at all possible...pull a new cable. But if that simply isn't possible, this cat 5 coupler is the next best option. Simple, quick, cheap, and reliable.

Suttle
Authorized Reseller

742A50
Junction Box

Features

Allows up to four hard-wired, additional extensions and/or accessories to be added
Entrance bridge provides a convenient disconnect point for premise wiring systems
Color-coded strip facilitates wiring
Break-away entrance tabs for incoming and extension wiring
UL certified

Modular Breakout Devices

APM2P12
Line 1 & 2 Splitter

HomeTech Solutions

RJ11 "T"
Two line splitter.
One 4 conductor modular plug (Pair 1 and Pair 2 - EIA/TIA568A).
One 2 conductor modular jack wired to pair 1 of plug.
One 2 conductor modular jack wired for Pair 2 of plug.
Current version includes a Line 1 + Line 2 jack.

APM2P12A
Line One & Two Splitter

Features

Plugs into two line jack.
Breaks out into Line 1 & Line 2 jacks.
See second photo for wiring diagram.
Alternate part number: SE-267B

Used for connecting two telephones and/or ancillary devices to separate outside lines through a single 4 contact jack wired for termination of two lines.

40108C
Line 1-2-3-4 to 1-2/3-4 Splitter

40108C - Modular Jack Splitter, C

4-Line Modular Jack Splitter
Splits one 4-line jack into two 2-line jacks.
One 8 conductor modular plug (All 4 pair - EIA/TIA568A).
One 4 conductor modular jack wired with pair 1 and pair 2 of plug.
One 4 conductor modular jack wired with pair 3 and pair 4 of plug.
Schematic
Use one 40108C and two 424258's to break out one 4-line jack into individual lines. Click for picture.

40108B
Line 1-2-3-4 to 1-3/2-4 Splitter

40108B - Modular Jack Splitter, B

10Base-T to 10Base-T and two line splitter.
Allows use of two unused pair in a 10Base-T jack/cable for other purposes.
One 8 conductor modular plug (All 4 pair - EIA/TIA568A).
One 4 conductor modular jack wired with pair 2 and pair 4 of plug (Pairs used by 10Base-T).
One 4 conductor modular jack wired with pair 1 and pair 3 of plug (Pairs unused by 10Base-T).
Schematic
Use one 40108B at each end to "break out" the two unused pair within a 4-pair Ethernet 10Base-T connection.
Allows one Cat 3 or better cable to serve as networking and voice/fax/modem cable.

LBO1 - Line Breakout Module

Splits one 4-line jack into 4 two-line jacks.
Includes pass-through port.
Hangs on wallplate with special screw (included).
Perfect for splitting out up to four lines in a Cat 5 jack to one or two line phones/modems/fax machines.
Includes short Cat 5 jumper for connecting to wallplate.

Miscellaneous

HomeTech Solutions

Modular Plug to DB9 Adapter

8 Position modular jack on one end
DB9 Male (A9M2DF) or female (A9F2DF) on the other
Click-In pins -- configure the adapter as you need.
Perfect for connecting and running RS232 data through Category 5 cable.

How Do I ... Run RS232 Through My Walls?

You've been told that Category 5 rated twisted-pair cable is capable of handling normal RS232 data...right? But you're wondering how to hook up the DB connectors on your computer and peripheral to the cat5 cable.

Well, it's really simple; Just use these adaptors and cat 5 patch cables. Assemble the appropriate adaptor, plug it into your computer, plug one end of the patch-cable into the adaptor, and the other into the cat 5 jack in the wall.

There isn't a standard (to our knowledge) on which cat5 wires go to which RS232 lines, so we just wire them in sequence like this:

RS232 via Cat 5
8P8C Modular Jack Lead Color (Pin #)	DB9 Pin #	Signal Name	Source
Blue (1)	1	CD - Carrier Detect	Modem
Orange (2)	2	RXD - Receive Data	Modem
Black (3)	3	TXD - Transmit Data	Terminal
Red (4)	4	DTR - Data Terminal Ready	Terminal
Green (5)	5	Signal Ground
Yellow (6)	6	DSR - Data Set Ready	Modem
Brown (7)	7	RTS - Request To Send	Terminal
White (8)	8	CTS - Clear To Send	Modem

(Pin 9 is Frame Ground and is not requred.)

Note that with a few of these adaptors in your toolkit, along with the usual supply of modular plugs, flat cable, and crimp-tool, you can make up your own RS232 cables as needed, always the perfect length!

GC-A9M2DF Adapter, 9 Pin M to 8 Pin F DB9 M to Modular 8 pos F User Configurable Pinout	List 4.00 each	$3.69 each	Enter Qty each
GC-A9F2DF Adapter, 9 Pin F to 8 Pin F DB9 F to Modular 8 pos F User Configurable Pinout	List 4.00 each	0.04 lbs/each $3.69 each	Enter Qty each

Super-Bee Crimp Connectors

Fast and reliable way to connect multiple 22-24 gauge low-voltage wires.
Just insert the wires and crimp with a standard faston crimper or pliers.
No need for stripping the wires -- hundreds of tiny teeth pierce the insulation. Solid or stranded.
Used extensively in the security/alarm industry for decades!
Only at HomeTech...where we bring you more, of the best!
Also available with sealant inside for damp locations (902).

EL-900 B Connectors, Plain, Yellow	List 1.00 bag/10	0.0192 lbs/bag/10 $0.95 bag/10	Enter Qty bag/10
EL-900 B Connectors, Plain, Yellow		0.4813 lbs/bag/250 $9.95 bag/250	Enter Qty bag/250
EL-902 B Connectors, Gel, White		0.03 lbs/bag/10 $1.10 bag/10	Enter Qty bag/10
EL-902 B Connectors, Gel, White		0.75 lbs/bag/250 $12.475 bag/250	Enter Qty bag/250

UY & UR
Telco Splices

Fast and reliable way to connect two (UY) or three (UR) 22-24 gauge low-voltage wires.
Just insert the wires and crimp with a standard pair of pliers.
No need to strip the wires -- Insulation displacement technology
Used extensively in the telecom industry for decades!

EC-703005 UY Connector Connects 2 telephone wires	List 5.95 box/25	0.02 lbs/box/25 $4.95 box/25	Enter Qty box/25
EC-703006 UR Connectors Connects up two 3 phone wires	List 5.95 box/25	0.06 lbs/box/25 $4.95 box/25	Enter Qty box/25

Suttle
Authorized Reseller

1542AM50
Radio Interference Filter

Used in place of a surface mounted jack assembly to eliminate AM/Fm and CB radio broadcast interference in phones caused by nearby transmitting antennae.

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