LCD-160 P/N 51850:A 09/26/2003 11
Features and Specifications System Overview
Diagnostic LED Indicators
LED indicators 11 through 14 aid in troubleshooting the LCD-160 and are visible to the installer
only. Figure 1 shows the locations of the diagnostic LED indicators. Table 3.1 lists and describes
the function of each of these diagnostic LED indicators. LED Indicators 1 through 10 indicate
system status and are visible to the user. See “Status LED Indicators” on page 25 for information on
LED indicators 1 – 10.
Table 3.1 Diagnostic LED Indicators
Reference LED Name
Color Description
LED11 STATUS Green Blinks when the LCD-160 is on.
• Installer/Troubleshooting only.
LED12 RECEIVE Green Blinks when data is received from the panel.
• Installer/Troubleshooting only.
LED13 TRANSMIT Green Blinks when data is transmitted to the panel.
• Installer/Troubleshooting only.
LED14 MICROFAIL Yellow Illuminates if the microcontroller fails.
• Installer/Troubleshooting only.