Modular Couplers & Adapters

Click any of the links below for quick access to each style of the Modular Couplers and Adapters category:
	Couplers		Two-Line Adapter
	Modular "T" Adapters		Triplex Adapter
	Modular “Y” Adapters		Retrofit Plug

159MC

Couplers
159MC-4	4-conductor coupler, reverse wiring	image
159MC-6	6-conductor coupler, reverse wiring
159MC-8A	8-conductor coupler, straight through wiring	image
159MC-8B	8-conductor coupler, reversed wiring
Colors (-xx):	Gray = (48), Ivory = (50)

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Modular "T" Adapters

276A4

Modular "T" Adapters
267A4	2 for 1 adapter - designed for connecting two telephones or equipment to an existing modular jack	diagram	image
267A6	Similar to 267A4 - 2 additional contacts are wired parallel to each other in the jack but are not connected to the 4 conductor plug	diagram	image
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	diagram	image
267C	Ideal for combining voice and data transmission through a single jack	diagram
267E	Provides modular connection for 2-6 conductor line cords wired to a 6 conductor modular plug	diagram	image
468A	Designed to permit quick connection of one telephone and one automatic dialing device to the same line without changing existing installation RJ31X	diagram	image
464	Used for operator training purposes where two headsets can be plugged into the 464 for student and instructor use. Designed to plug into a standard console headset jack	diagram	image
400B	Provides auxiliary power to telephones - labeled phone and power	diagram
400D	Allows the spare pair from multi-line electronic telephone wiring to provide tip and ring to a single line set	diagram	image
400E	Used to split eight conductor premise wiring into two 4-conductor modular outputs	diagram
400S	Two 8-conductor jacks wired to a single 8-conductor plug	diagram
Colors (-xx):	Ivory = (50)

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450B

Modular "Y" Adapters
450A	Used to split an 8-conductor plug ended cord for output in two 4-conductor jacks	diagram
450B	Allows a 4-conductor plug-ended cord to be output in two 6-position, 2-conductor jacks	diagram	image
Colors (-xx):	Ivory = (50)

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Two-Line Adapter
174	Consists of a modular jack and two plug-ended 6' line cords
Colors (-xx):	Ivory - (50)

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173

Triplex Adapters
173	Provides modular plug-in connections for Line 1, Line 2, Line 1 & 2 respectively. Allows simultaneous connection of single line modular telephone sets to Line 1 and Line 2 while the 2-line circuit may be extended with a 3rd modular jack	diagram	image
173A	Allows connection of three single-line phones to a single modular outlet	diagram
Colors (-xx):	Ivory = (50)

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Retrofit Plug

152MRL

Retrofit Plug
152MRL-4	4-conductor, 6-position, screw terminal	diagram	image
Colors (-xx):	Ivory = (50)

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