Bell Control Technical Data 3700: Difference between revisions

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 === AX Systems ===
-The 485 input connector is pinned out 1 for 1 the same as the AX tower connector. When multiple panels are used, parallel the data cable to all panels.
+The 485 input connector is pinned out one to one the same as the AX tower connector. When multiple panels are used, parallel the data cable to all panels.
-* REMOVE R3 and R4 from bottom of interface if not the end of the 485 line!
-Four wires are enough as STATUS is not used at this time (Summer 2023), except for wireless and optical interfaces.
+Four wires (two twisted pairs) are enough unless AX STATUS mode is used (not implemented at the time of this writing).
+# STAT+ (status from the panel to the controller)
+# STAT-
+# 12V+  (used to power the isolated inteface in the controller)
+# 12V-
+# DATA+ (control data from the controller)
+# DATA-
 === LX Systems ===