BW Broadcast rds2+, Техническое руководство

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BW Broadcast Technical Manual
Page 23
Further Features
2.9 FURTHER FEATURES
2.9.1 Bypass Relay
The RDS encoder board includes a bypass relay providing an alternative way for the MPX signal on power supply
failure (applies to loopthrough connection mode only).
2.9.2 LED Indication
Two LED diodes are used to indicate operating status of the RDS encoder:
2.9.3 External Program Switch
External program switch input allows you to select one of two program banks available by an external device. This
device can be a simple switch or a device with digital output. The PROGRAM parameter must be set to 0 to enable this
feature. The program input is level controlled, the switch shut-off or logical 1 selects the Program 1, the switch
closure or logical 0 selects the Program 2.
Alternatively the switch input can be used for selecting a text message or for control of other RDS service or setting.
For more details see chapter 11.7 - Conditional Command.
2.9.4 External TA/EON1TA Switch
External TA/EON1TA switch input allows you to control the Traffic Announcement parameter by an external
device. This device can be a simple switch or a device with digital output. The TA input is level or edge activated, as
specified by the TATMOUT command.
• If level controlled, the switch closure or logical 0 activates the TA (sets to 1). The switch shut-off or logical 1 deactivates
the TA (sets to 0).
• If edge activated, any logical level change activates the TA. Then the TA is deactivated after the time specified by the
TATMOUT command.
The TATMOUT command doesn’t affect the EON1TA switching. If EON1TA is controlled using the external switch,
the control is always based on the level.