Chapter 1: Introduction 
VM-1 User Guide  3 
•  One Ethernet connection for panel programming and diagnostics 
•  Live voice and prerecorded audio messaging 
•  Two-way firefighter telephone communication 
•  Connection to a VM-1 life safety network using copper, fiber optics, or both 
(maximum network size may not exceed 24 nodes) 
Overview of panel controls and indicators 
Figure 1: VM-LCD User Interface 
 
(1)  Display 
(2)  System status indicators (see Figure 4 on page 5 for details) 
(3)  Common Controls keypad (see Figure 5 on page 6 for details) 
(4)  Cursor keypad (see Figure 6 on page 7 for details) 
(5)  Alphanumeric keypad (see Figure 7 on page 7 for details) 
(6)  Normal display screen (see Figure 2 on page 4 for details) 
(7)  Off-normal display screen (see Figure 3 on page 4 for details)