CRITICALPOINT 700/800MHZ BDA/DAS/BBU V3 USER MANUAL
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Rev. 1-0-2 Rev. Date: 11-1-2024
6.6 DRY-CONTACT AND EXTERNAL ALARM WIRING
Dry Contact Alarms:
The V3 BDA/MU and RU have 8 dry contact outputs, each one supports either Normally Open or Normally
Closed operation. The user can configure each of the 8 dry-contact alarm outputs through the software GUI.
There are default alarm configurations in the software GUI that match the annunciator front plates that are
included with the unit. Furthermore, for non-standard/custom alarm configurations, the user can select which
internal device alarms will trigger each dry-contact alarm output. In the Fiber DAS configuration, RU alarms
are also mirrored and generated at the BDA/MU Dry Contacts such that the entire system of alarms can be
summarized at the BDA/MU. EOL (End-of-Line) Resistors can be installed across the Dry Contact Alarm
terminals. The Phoenix Alarm Connectors are removable for ease of wire installation.
Table 34: V3 BDA/MU/RU Dry Contact Ratings
External Alarms:
The V3 BDA/MU/RU has 5 external alarm inputs which can accept dry contact outputs from external devices.
These external alarm contacts carry 5VDC and the polarity is indicated by the “+” and “-“ marks on the
terminals. The external alarms can be setup in the software GUI to trigger from a Normally Open or Normally
Closed device trigger. Furthermore, the external alarm inputs can be configured to trigger one or more of the
dry-contact alarm outputs. Additionally, any of the external alarm inputs can be configured to control the RF
and shut down the RF amplifiers through the software. This allows for a quick RF Shut Down by a simple
push of a button (Example EPO Switch). The External Alarm 5 is pre-configured from the factory as the “Door
Open Alarm”. If the user does not wish to use the Door Open Alarm or requires the External Alarm 5 for a
different device, the Door Alarm wires must be removed. Please ensure the device is completely powered
down before making this wire connection. Install the new device wires in External Alarm 5 and reconfigure
accordingly in the software GUI.
Figure 184: V3 BDA/MU/RU Dry-Contact Output and External Input Alarms Connection
8 x Dry-Contact
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