Section 5 – Recorder Setup

Event Message: Enter a message in the entry box (up to a maximum of 20 characters) that will be appended to the alarm/event log message if the check box to the left is checked. This message will also be appended to the email if the notify box is checked (see above).

Audio File: The recorder can play a .wav file (PCM type only) instead of the standard alarm sound. These audio files must be saved in the system internal memory (SD Card). The drop down box shows available files. Select the file to be played or none to use the default sound.

Contact: This is the relay output contact that will be activated when the alarm is true. You need to have an optional digital I/O board in the system which needs to be set up correctly. The contact has to be enabled. If no contact output is required, set this to None. If you need to set up the contact, press the Setup button alongside the contact number to get to the Digital Output Setup window.

5.5Digital Input/Output

The Digital Input/Output features require an optional card which is plugged into the rear of the recorder. This card will have some combination of up to 12 relays (outputs) and 6 opto-isolated inputs, depending on model number. Check the specifications of the card you have for the output ratings and type of the relays and the input voltage of the opto-isolated inputs.

In order to make use of the Digital Input/Output capabilities of the recorder, these need to be setup and initialized before use. Setup can be done through the Utility Setup Menu when defining or editing widgets.

The status of the digital outputs is indicated by the icon on the Task Bar which also doubles as the Alarm Reset button. The Alarm Reset button will drop out any contacts that are latched and no longer in alarm, or any alarm that is set to drop out on reset. The status is indicated as follows:

- Relay outputs all reset – safe condition

- One or more relay outputs active – alarm condition

The relay outputs can be configured in a number of ways. It is up to the user to ensure that connection and external circuitry agree with what is set up in the relay configuration menus. The output types are as follows:

Normal: The relays are normally not energized but will energize in an alarm condition and return to normal when the alarm clears, or will clear when the Acknowledge button is pressed if this option is set.

Latching: The relays are normally not energized but will energize in an alarm condition and will NOT return to normal when the alarm clears, until the Acknowledge button is pressed or unless the Acknowledge button is pressed if this option is set.

Reflash: The Reflash option programs the relays to momentarily open and reclose each time an additional alarm that is programmed to close the contacts is acquired.

Failsafe: This is an option that can be applied to each relay output. The Failsafe option allows the relay outputs to function as Failsafe Contacts. This reverses the logic so a contact which is normally OPEN will be energized normally CLOSED. The Failsafe contact will drop out in the event of a power failure and indicate an alarm.

The digital inputs are opto-coupled led types. They typically operate from 3 to 12 volts DC but can be wired for higher input voltages. Each input has an isolated positive (+) and negative (-) connection. Check the information that came with the card for further details.

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Omega Speaker Systems RD8300 manual Digital Input/Output
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RD8300 specifications

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