The NAPCO NetLink NL-MOD-UL is a device that allows the reporting of alarms over a TCP/IP based (Intranet or Internet) network. Alarm reporting, previously performed via Telco only, can now be performed over both a TCP/IP network and/ or Telco, or via the TCP/IP network as a backup. The NLMOD-UL is housed in a separate plastic enclosure, and is connected to the Local Download receptacle for the GEMP816 / P1632 / P1664 / P3200 / P9600 and X255 Napco control panels, and is connected via the parallel inputs with the MA3000 and other file alarm control panels. The NL-MOD-UL is compatible with the following NAPCO control panels: GEM-P816 (version 30 or greater) GEM-P1632 (version 30 or greater) GEM-P1664 (version 30 or greater) GEM-P3200 (version 56 or greater) GEM-P9600 (version 56 or greater) GEM-X255 (version 56 or greater) Not all control panels can be updated by replacing the existing firmware. The following is a list of minimum existing firmware: GEM-P816 (version 30 or greater) GEM-P1632 (version 30 or greater) GEM-P1664: (version 30 or greater) GEM-P3200: (version 20 or greater) GEM-P9600: (version 20 or greater) GEM-X255: (version 4 or greater) The NL-MOD-UL is supported by PCD-Windows Quickloader download software version 5.4 or greater. For the panels listed above, the Quickloader software will support downloading through the Internet or an intranet, as well as the uploading of logs and other data. The NL-MOD-UL includes a small transient protection device (named the NL-ULBD) inside its enclosure. In addition, the NL-MOD-UL is one part of a larger system which includes a software package to allow its configuration before use (the NL-MODCONFIG) and a rack-mountable Receiver (the NLRCV-RMPCUL) to allow the receipt of alarms, status and supervisory data.