Title: Hardware Installation Guide.pdf
When the controller is reading the database, LEDs 1-4 will simultaneously flash once every two seconds. When the controller is saving the card database, LEDs 1-4 will simultaneously flash in a progressively faster pattern until completion. The final pattern may be so fast that it is hard to distinguish from constant on. Saving large databases can take several seconds.The LED patterns used for Heartbeat, Host communication, and downstream communication will be suspended during the save/restore and will return to normal once the save/restore is complete.134 — revision 6Hardware Installation Guide26UL Listed InstallationsFor UL installations, the following must be observed:All field wiring terminals are suitable for single wire only.RS-485 is “Not Evaluated by UL” and therefore cannot be used in UL installations.Environmental for UL installations: -Temperature: -10 to +49°C (14 to 120°F) operating Humidity: 85+/-5% at 30+/-2°C (86°F)revision 6 — 135