8.5 LEGACY CONTROL PANELS
• 500-3x-10 series formed the original series. The electronics is modular based. These
panels fall outside the scope of this manual but any technical queries may be addressed
to Trilogy Communications.
• 500-3x-3x series were supplied from 1996 until late 2000. See section 8.5.2. The
associated expansion panels are from the 500-40-0x series. See section 8.5.4.
• The simple 1U, 12 key panel, type 500-39-30 which has no alphanumeric displays. See
section 8.5.6 for details.
• Many variants from the 500-3x-50 series have now been discontinued. However, some
models are still current so information is provided in section 5.5
• A simplified version of the 500-42-50 which has no active displays and other reduced
facilities. The part number is 500-44-50: See section 5.7.
8.5.1 LEGACY CONTROL PANEL FACILITY COMPARISON TABLE
A series of additional connectors provide the following facilities, on the panel types indicated
in the table.