6808 Manual  — P/N LS10146-001SK-E:C  09/28/2017 17
Before You Begin Installing
* Regulated/special application when used for releasing.
3.5  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.
Terminal Block 5 AC INPUT B AC input (hot) 120 VAC, 60 Hz 3.3 A
Earth Earth Ground N/A N/A
W AC input (neutral) 120 VAC, 60 Hz 3.3 A
Terminal Block 6 TROUBLE NC Normally closed relay contact 24 VDC 2.5 A, resistive
COM Common terminal
NO Normally open relay contact
RELAY 1 NC Normally closed relay contact 24 VDC 2.5 A, resistive
COM Common terminal
NO Normally open relay contact
RELAY 2 NC Normally closed relay contact 24 VDC 2.5 A, resistive
COM Common terminal
NO Normally open relay contact
NAC1* – Notification Appliance 
Circuit/Auxiliary power
24 VDC 3.0 Amp NAC or Aux 
power 
+
NAC2* – Notification Appliance 
Circuit/Auxiliary power
24 VDC 3.0 Amp NAC or Aux 
power 
+
NAC3* – Notification Appliance 
Circuit/Auxiliary power
24 VDC 3.0 Amp NAC or Aux 
power 
+
NAC4* – Notification Appliance 
Circuit/Auxiliary power
24 VDC 3.0 Amp NAC or Aux 
power 
+
P8 EXT. Comm
Cellular 
Connection
B Cellular Transmitter input
A
S+ 55 mA, 95 mA
S-
P10 Data Network Used for SK-NIC 24 VDC 21 mA
Terminal No.
Label
Description
Rating
Group Individual Voltage Current
Table 3.1  Terminal Descriptions and Electrical Specifications
High voltage AC power terminal
SLC loops SLC In/Out Terminals
POTS reporting 
input/output 
Phone line circuits, Ring Tip Telco, Phone 
Terminals
Notification circuits NAC 1-4
SBUS SBUS Out Terminals, Cellular communication
Relay circuits Trouble, Relay 1, Relay 2 Terminals