SilentKnight 5820XL - Manual (Page 22)

Model 5820XL / 5820XL-EVS Installation Manual LS10061-001SK-E
3-3
3.4 Wiring 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:
• 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 3-1 for 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.
35 SC- L2
SLC IN
Used for Class A installations 0 
36 SC+
37 Ring Phone Line 1 Telco Ring N/A 0

38 Tip Phone Line 1 Telco Tip
39 Ring Phone Line 1 Premises Ring
40 Tip Phone Line 1 Premises Tip
41 Ring Phone Line 2 Telco Ring N/A 0 
42 Tip Phone Line 2 Telco Tip
43 Ring Phone Line 2 Premises Ring
44 Tip Phone Line 2 Premises Tip
45 SC- SLC Programming Terminal
(-) 32 VDC 150 mA 0

46 SC+ SLC Programming Terminal
(+) 32 VDC 150 mA
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
Table 3-1: Terminal Descriptions and Electrical Specification
Terminal # and Label Description
Rating
Earth Ground
Faults
Voltage Current