FM VERSION DESCRIPTION
ENG
Page 22
11.10 DIGITAL DATA PORT
15-pin female Interface connector provides 3 optoinsulated “trigger” inputs.
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
DIRECTION
PIN
DESCRIPTION
DIRECTION
1 Cathode of photocoupler
input 1 (split)
IN
9
GND
/
2 Cathode of photocoupler
input 2 (M/S)
IN
10
GND
/
3 Cathode of photocoupler
input 3 (TA)
IN
11
GND
/
6 Anode of photocoupler
input 1 (split)
IN
12
GND
/
7 Anode of photocoupler
input 2 (M/S)
IN
15
+ Vcc
OUT
8 Anode of photocoupler
input 3 (TA)
IN
Pins 9, 10, 11, 12 are linked together and provide an insulated GND connection.
A current-l Vdc source is available on pin 15 (+ 12 V via a 1K2 resistor).
Содержание Falcon 15
Страница 2: ......