Siemens BACnet ATEC 125-5050 - Manual (Page 12)

Chapter 1 – Product Overview
12
Siemens Industry, Inc.
BACnet ATEC Owner's Manaul
125-5050, Rev. AA 4/20/2010
Communication Wiring
The controller connects to the field panel by means of a Floor Level Network (FLN)
trunk. Communication wiring connects to the three screw terminals on the controller
labeled “+” (positive), “-“(negative), and “S” (Shield). See the following figure.
Controller LED Indicators
The controller has six Light Emitting Diode (LED) indicators (see the figure Siemens
BACnet ATEC ).
Controller LEDs.
LED Type Label
(if present)*
LED
Number
Indication
DO LED 3 - LED 5 3 - 5 Indicates the ON/OFF status of the DO
associated with it. A glowing LED indicates
that the DO is energized.
Transmit TX 0 Indicates, when flashing, that the controller is
transmitting information to the field panel.
Receive RX 1 Indicates, when flashing, that the controller is
receiving information from the field panel.
BST
”Basic Sanity
Test”
BST 2 Indicates, when flashing ON and OFF once
per second, that the controller is functioning
properly.
* Some LED labels and numerals may be hidden by the controller cover.
See also
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Chapter 1 – Product Overview [ 9]