THOMSON DD10, Руководство по установке

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7. Description of the Interface Diamond digital
120
The switches T47, T48, T49, T56, T57, T58, T67 and T68 on the EBox controller
RY1917 or RY1601 enable defining the mode of operation for the GPI inputs.
Position ”2” (to the right) is intended for the following application:
At the two connectors, the opto coupler internal LED is made available (including
drop resistor 1kOhm). With this type of control, a ground potential isolation is be-
tween mixer and controlling device. However, the controlling device has to imprint
a current in the LED i.e. a simple contact is not suited in this case.
Controller External Mixer Ebox
GPI IN / OUT
1k
10k
VCC
ILCT6
IL
U L
anode
cathode
U
L
min 3 V
U
L
typ 5 V
U
L
max. one 24 V
I
L
(UL=5V) 4 mA
I
L
(UL=24V) 24 mA
GPI input
(isolated)