Crown Audio IQ-P.I.P.-SMT - Manual (Page 28)

Page 28
IQ P.I.P.–SMT
Fig. 4.14 The Internal AUX Circuit
AUX
CONNECTOR
GND
+15 V
Not Used
1
3
2
AUXILIARY
EQUIPMENT
110 VAC
SOLID
STATE
RELAY
(C 7308-7) + –
Fig. 4.15 A Sample AUX Output Circuit
used to sense the presence of an in-
put signal across pins 1 (ground) and
2 (+). A 2.5 to 15 VDC signal at the
input will be interpreted as a logic
“high” and will be communicated to
the Crown Bus where a host com-
puter or drone can act upon it. A sig- nal less than 2.5 VDC is interpreted
as a logic “low.”
Note: A negative sig-
nal can also be used as a logic low
because the signal is internally
clamped to protect the internal cir-
cuitry.