Axel Falcon 35, Руководство по эксплуатации

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THE ‘SPLIT’ MODE (FM VERSION ONLY)
ENG
Page 40
17.1 HOW TO ACTIVATE THE ‘SPLIT’ MODE (FM VERSION ONLY)
The ‘Split’ mode (available as an option) is activated through a dedicated input on the OPTO INTERFACE
port.
The OPTO-INPUT Port is a 9-pin female Interface (on DB-9 connector) which
provides 2 optoinsulated “trigger” inputs: one for SPLIT mode activation and one
for TA flag switching.
Once enabled, SPLIT activation will cause SPLIT LED on rear panel to light.
The following table displays internal connection of Digital Port.
PIN DESCRIPTION DIRECTION PIN DESCRIPTION DIRECTION
1
Cathode of photocoupler SPLIT input
IN 6 GND /
2
Anode of photocoupler SPLIT input
IN 7 GND /
3 + 5 V via 470 Ohm resistor OUT 8 GND /
4
Anode of photocoupler TA input
IN 9 GND /
5
Cathode of photocoupler TA input
IN
Pins 6, 7, 8, 9 are linked together and provide an insulated GND connection.
A current-l Vdc source is available on pin 3 (+ 5 V via 470 Ohm resistor).
The SPLIT mode may ba activated either by a TTL command or a CLEAN CONTACT
EXAMPLE N° 1 – SPLIT activation by TTL command
OPTO
INPUT
SPLIT
TA
R
+5V
1
5
6
9
1
6
5
9
470 OHM
GND
EXTERNAL
TTL COMMAND
(connector internal view)
external TTL signal must be applied through a 470 Ohm carbon resistor to the SPLIT
photodiode (pins 1 and 2). Max current allowed: 10 mA. Nominal: 5 mA