Instruction manual

2-3
• Ground Fault Detection Section.
Monitors Inputs and outputs for 600K Ohms minimum in relation to ground.
• A dual-tone tone generator with 2 field selectable sounds (Code 3 Tone, Slow Whoop) that sound
when there is a Digital Voice Section Failure in alarm condition.
• Full supervision with on-board diagnostics and trouble reporting circuits for:
Audio NAC circuit wiring  open and short conditions
Ground Fault detection
Strobe NAC circuit wiring  open and short conditions
PTT Microphone  open or not installed condition
Amplifier operation
Digital Voice Section
Input voltage/low battery
• Form C relay trouble contacts for external notification.
• Built in sounder to indicate trouble, with a trouble silence switch to silence it. If the trouble is not
corrected in 20 minutes, the sounder will reactivate. (Trouble Silence Switch does not change the
state of the Form C Trouble relay.)
• Remote reporting via output contacts for system trouble or alarm activation.
Section 2-2 - Enclosure and Configuration
See Chapter 8 for Technical Specifications
Section 2-3 - Nominal Electrical Data
See Chapter 8 for Technical Specifications.