
Sentinel CX
Sentinel CX Sensor Station IM Rev. 1.2 Page 7 of 7
Sensor Connector Ratings
Voltage: 9-11.2 VDC
Current: 2 Amps max through single relay connector (2 Amps max total across 4 connectors.
CAUTION
When utilizing ‘Wet’ contacts, the maximum power that can be drawn by the
annunciators is 2A.
The Smart Wireless® CXT is also available with ‘Dry’ relay contacts (Figure 7). Dry relay Contacts allow
the user to control annunciators that operate off an exterior power source that relies on the controller to
provide only contact closure to apply voltage to the annunciator. The relays are rated for 10A @
30VDC/250VAC. It is important to note that the ‘Dry’ contact feature utilizes a common return for all
annunciators.
Relay PCA
NC
COM
NO
FAULT
NC
COM
NO
ALARM 3
NC
COM
NO
ALARM 2
NC
COM
NO
ALARM 1
Enclosure
ALARM 2 (Green) 3
Alarm Connector
(Pin 2 is not used)
ALARM 3 (Orange) 4
FAULT (Blue) 6
ALARM 1 (White) 1
COM (Black) 5
1
1
2
3
4
5
6
Figure 7 External Alarm Connector Pin out for ‘Dry’ alarm contacts
1.8 Power Switch
Power to the SmartWireless CX is controlled by a power switch located on the bottom of the enclosure
(Figure 1). Pressing this switch while the power is off will turn the CX on. Pressing the switch while the
power is on will turn the power off. When the power to the CX is on, the green LED indicator on top of the
enclosure will be illuminated.
1.9 Power Connector
The internal battery inside the SmartWireless® CXT controller can be recharged by connecting 24VDC to
the power connector on the side of the enclosure (Figure 1). A VAC/24VDC battery charging adapter is
included with every CX.
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