Honeywell 5820XL manual Wiring Specifications, Sc+

						Before You Begin Installing
Terminal # and Label		Description			Rating		Earth Ground
							Faults
				Voltage		Current
37	Ring	Phone Line 1 Telco Ring
38	Tip	Phone Line 1 Telco Tip		N/A			0Ω
39	Ring	Phone Line 1 Premises Ring
40	Tip	Phone Line 1 Premises Tip
41	Ring	Phone Line 2	Telco Ring
42	Tip	Phone Line 2	Telco Tip	N/A			0Ω
43	Ring	Phone Line 2	Premises Ring
44	Tip	Phone Line 2	Premises Tip
45	SC-	SLC Programming Terminal ( - )		32 VDC	150 mA		0Ω
46	SC+	SLC Programming Terminal ( + )		32 VDC	150 mA

3.4Wiring Specifications

Induced noise (transfer of electrical energy from one wire to another) can interfere with telephone communication or cause false alarms. To avoid induced noise, follow these guidelines:

•Isolate input wiring from high current output and power wiring. Do not pull one multi- conductor cable for the entire panel. Instead, separate the wiring as follows:

High voltage	AC power, Terminals 1-3
SLC loops	Terminals 33-36
Audio input/output	Phone line circuits, Terminals
	37-44
Notification circuits	Terminals 4-15
SBUS	Terminals 16-23
Relay circuits	Terminals 24-32

•Do not pull wires from different groups through the same conduit. If you must run them together, do so for as short a distance as possible or use shielded cable. Connect the shield to earth ground at the panel. You must route high and low voltages separately.

•Route the wiring around the inside perimeter of the cabinet. It should not cross the circuit board where it could induce noise into the sensitive microelectronics or pick up unwanted RF noise from the high speed circuits. See Figure 3-1for an example.

•High frequency noise, such as that produced by the inductive reactance of a speaker or bell, can also be reduced by running the wire through ferrite shield beads or by wrapping it around a ferrite toroid.

151209 3-3