FunkTronic Major BOS 8a, Руководство пользователя

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Opto-Coupler Input
The Major BOS 8a has an opto-coupler input at connector ST14a . This opto-coupler
input can be programmed with different functions.
a) If this register is encoded to value ´ 00´, the opto-coupler input switches the handset/
headset to the audio-frequency-connection when activated (standard function, see
section Connection to Telephone AF ).
b) The opto-coupler input can also be used to emulate certain key functions
of the switch panel or to enable switching functions for special applications.
To do this the assignment to the radio channels is coded at the 1
st
digit (high-nibble) in
EEPROM register 047 . At the 2
nd
digit (low-nibble) the key function resp. the special
function which is to be emulated, is encoded:
register 047
Opto-coupler input
Special function
00 = control the telephone relais
10 = microphone switching for PTT2
PTT2 transmits via gooseneck microphone, when opto-
coupler is turned on
20 = microphone switching for PTT2
PTT2 transmits by gosoeneck microphone when
opto-coupler is turned off
1
st
digit Assignment to
0 = all activated radio channels
1..8 = radio channel 1..8
2
nd
digit
emulated key / special function
0 = (-no function -)
1 = radio channel (selction)
2 = volume higher
3 = volume lower
4 = loudspeaker ON / OFF
5 = call 2
6 = call 1
7 = transmit (gooseneck microphone)
8 = transmit (microphone of handset/headset)
9 = transmit (external encoder)
A = special functions button
B = transmit (SH or HS-micro), PTT2 selects micro
C = transmit (SH or HS-micro), switching by automatic
headset detection
To activate the opto-coupler input direct current (3V < U < 15V) is necessary that can be obtained
directly from ST14a/2 . For higher ext. switching voltages an additional external dropping resistor
is necessary (internal dropping resistor = 1kohm).