FM VERSION DESCRIPTION | ENG | |
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11.10 DIGITAL DATA PORT
These inputs can be used to dynamically alter two RDS flags (TA and M/S) and to enable Split operating mode in response to logic signal transitions.
INPUT 1 is used to carry external network ‘split’ command (ref to Section 13).
INPUT 2 is used to dynamically alter M/S RDS flag. Input enabling will cause LED 2 on Front Panel to light.
INPUT 3 is used to dynamically alter TA RDS flag. Input enabling enabling will cause LED 3 on Front Panel to light.
The following table displays internal connection of Digital Port and how to provide (f.i.) an external TTL command to Input # 1.
PIN | DESCRIPTION |
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1 | Cathode of photocoupler input 1 (split) | IN | |
2 | Cathode of photocoupler input 2 (M/S) | IN | |
3 | Cathode of photocoupler input 3 (TA) | IN | |
6 | Anode of photocoupler input 1 | (split) | IN |
7 | Anode of photocoupler input 2 | (M/S) | IN |
8 | Anode of photocoupler input 3 | (TA) | IN |
PIN | DESCRIPTION | DIRECTION |
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9 | GND | / |
10 | GND | / |
11 | GND | / |
12 | GND | / |
15 | + Vcc | OUT |
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Pins 9, 10, 11, 12 are linked together and provide an insulated GND connection.
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