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1.6.6.2 Control Outputs
Digital Amplifier has got also eight programmable logic outputs. Control outputs are open collector outputs and they
have +24VDC output that can be used to drive directly +24V relays. Each output can control a maximum load of 300mA.
Outputs can be used to control lights, alarm bells, start audio substation etc.
Details of the control input/output programming is described in the AlphaAnnounce Software Configuration on page
33.
1.6.7 Data Connections
1.6.7.1 RS-232 Port
Service port.
1.6.7.2 USB-A Port
USB port for external USB-memory containing WAV formatted alarm and info messages. Also USB-RS232/485 adapters
can be connected when connection to external system is needed. Through USB-HUB multiple devices can be connected
simultaneously.
1.6.7.3 USB-B Port
Delivery includes USB-AB cable that is used for connection to PC. Configuration made with Configuration Software
is loaded to system through Digital Amplifier with address 1 which will resend configuration to all other units through
System bus.
1.6.7.4 Internal USB-A Port
Digital Amplifier contains one internal USB port which can be used when USB-memory is needed to store out of sight.
When USB-memory is connected to both internal and external port, internal port is always primary.
1.6.8 Configuration of the System
Configuration and commissioning of the system requires that correct version of configuration software is installed to PC
and Digital Amplifier USB drivers are installed correctly.
Details of how to setup and use program is described in the AlphaAnnounce Software Configuration on page 33.
1.6.8.1 Device Address
Setting of device address has been described in Setting the Address on page 18. Digital Amplifier with address 1 is
the master unit for the system. In case where there are two or more units attached to system, the device with address 2
can be programmed to act as reserve master for the system. It takes control if master unit fails (Master Change Over).
1.6.8.2 PC Connection
1. Connect USB cable between PC and front panel USB connector
2. Switch on the powers
3. After start-up of the device open Configuration Software
4. When you are building new system, use setup wizard to create new system template
5. If you are making changes to old system open project file. If you don't have project file, open any project and
download configuration from Digital Amplifier to PC.
6. Active connection between PC and Digital Amplifier is shown on status bar with text "Digital Amplifier Connected"
7. Configuration must be uploaded to Digital Amplifier before changes takes place
Note Internal clock must be set with Configuration Software to get correct timestamps to action and fault log.
Also Time based events won't activate correctly if internal clock is not set.
19 | AlphaAnnounce Digital Amplifier
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