Using The Alarm; Relay - Kentrox DataSMART T3/E3 IDSU Installation Manual

Using the alarm relay
24 Chapter 3: Initial installation and power up
The DataSMART T3/E3 IDSU provides an external alarm relay switch that you can use to
trigger an external alarm device. This switch provides normally-open and
normally-closed positions.
Wire the alarm relay as follows:
1
Prepare three 14 to 22 AWG (1.63 to 0.64 mm) wires to terminate in the alarm relay
plug. Strip 0.125 in. (3.2 mm) of the insulation from the plug end of each wire. Do
not strip more than 0.25 in. (6.4 mm).
2
Connect the COMM wire to position 2 of the plug.
3
Connect the N (normally open) wire to position 3 of the plug.
4
Connect the NC (normally closed) wire to position 1 of the plug.
Alarm relay output must be enabled through the user interface, once you have connected a
control device. Use the EAR command.
The ACO button on the front-panel is used to cutoff the external alarm relay once it has
been triggered.
ACTV
LOOP
FEL SEND
XMT
RCV
ACO
ALARM
T X D R X D
ACO button
PLCP
NEI
FEI
DATA PORT
CA TA