Each System 4100 unit is wired in parallel from a central power supply using 16 AWG wire as the bus wire, with two pair telephone wire pigtails spliced in at each unit location.  Each two-pair telephone wire pigtail should be terminated with an RJ-11 plug for connection to the unit.  Connect the two pair telephone wire to pins 3 and 4 on the RJ-11 plug. The power supply is the only component of the system that needs to be plugged into a 110V/220V outlet. (See Hardwire Instructions)

Following are instructions for the installation of each wall mount System 4100 unit. You may contact our Customer Service Department at 1-800-899-4741 if you have any questions.

	1.	Mark eight bracket screw holes. The edges of the opening should be a minimum of ¾ in. from any stud.
	2.	.Mark four corners of hole to be cut.  This hole should be 7 in. by 7 in.
	3.	Draw outer lines of hole to be cut.
	4.	Cut hole.
	5.	Drill holes.
	6.	Insert bracket front into hole.
	7.	Insert bracket back into hole.
	8.	Secure bracket front to bracket back using the four long screws provided.
	9.	Connect wire to RJ-ll port and insert unit into bracket.
	10.	Secure outer plate with four short screws provided.