Optional Expansion Gpio; Serial Port Wiring - Digital Alert Systems DASDEC II User Manual

Examples of events that can trigger a GPO relay are EAS audio or NTSC video play-out of an alert, or when an alert has
been decoded but not forwarded, or when an alert is held or delayed pending a GPI action.
The DASDEC II comes with two General Purpose contact closure inputs. GPIO input 1 can be programmed to trigger
forwarding of an un-forwarded alert or hold/delay the play-out of an active alert. Depending on the DASDEC II option
licensing, GPIO input 2 can be programmed to a variety of actions, such as (1) issue a Required Weekly test; or (2) to
trigger origination of an alert header/attention signal, pausing for voice dub of the audio message, followed by trigger of
the EOM audio; or (3) review of audio portion of an active alert; or (4) active alert acknowledgment; or (5) re-enabling of
active alert forwarding capability; or (6) forwarding of a Monthly test with original audio.
See Chapter 4.11 Setup > GPIO: Setup General Purpose IO Options

2.4.1 Optional Expansion GPIO

The DASDEC II supports three different Networked GPIO hardware options. These modules provide a very
convenient and practical way of adding programmable relays and inputs to a DASDEC II system. The DASDEC
II supports the Titus Technology WR-300 module with four relays (the same hardware as the Monroe Electronics
rack mounted R190 Hub Controller), and the Control-by-Web Web-Relay Quad with four relays (the same
hardware as the Monroe Electronics rack mounted R190A Hub Controller) and Control-by-Web Web-Relay Dual
module with two relays and two low voltage driven inputs. Web Relay Dual inputs require applied 3 to 12 VDC
(some industrial models 11 to 28VDC).
See Chapter 4.10.5 Setup > Net Alerts > Net GPIO.
2.5

Serial Port Wiring

The DASDEC II is equipped with one RS232 serial port on the back panel. In addition, one USB connection can be used
with a USB/serial port expander to provide up to four (4) more RS232 serial ports. The USB port expander requires an
FDTI chipset for compatibility. Digital Alert Systems can provide compatible adapters.
The serial ports are used to connect to and drive a variety of video character generators and BetaBrite LED signs. The
DASDEC II supports a wide variety of serial protocols, including the most commonly used protocols in legacy EAS
equipment such as TFT Standard and Sage Generic.
For configuration of serial port protocols, see Chapter 4.7 Setup > Video/CG.
Each serial port has the same PC pin-out as described below.
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Digital Alert Systems: DASDEC User Manual