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Digital Alert Systems
General Purpose Input/Output (GPIO)
The EAS platform comes standard with two General Purpose Input (GPI) contact closures and two
General Purpose Output (GPO) relays. The connector is located on the back panel, a 7-pin pluggable
terminal connector is provided.
GPO relay outputs are programmable. Triggering can be filtered against specific alert FIPS Groups and EAS
Group codes. Events that can trigger a GPO relay include:
• Remain closed during EAS audio playout
• Momentarily closed at start of EAS audio playout
• Momentarily closed at start of an alert that has been decoded but not forwarded,
• Remain closed if an alert is held or delayed pending a GPI action.
The EAS device comes with two General Purpose Input (GPI) contact closures. They can be programmed
to trigger a variety of actions, such as:
• Issue a Required Weekly test
• Trigger origination of an alert header/attention signal, pausing for voice dub
of the audio message, followed by trigger of the EOM audio
•
Review of audio portion of an active alert
•
Active alert acknowledgment
•
Forwarding of a monthly test with original audio
•
Re-enabling of active alert forwarding capability
Additional Expansion GPIO Options
For installations that require additional GPIs and GPOs, there are several options available that will
expand the standard capabilities. An internal GPIO card may be installed in the PCI expansion slot to
enable eight additional GPIs and eight additional GPOs. If the PCI expansion slot is unavailable, several
network-connected GPIO devices, such as the R190A Remote LAN Hub Controller / Net GPIO, are
options. The DASDEC platform can mix and match any combination of internal and network-connected
GPIO devices.
Revision 1.0
GPIO Terminal Connector
DASDEC-III Hardware/Installation Guide
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