Crown Audio PSI - Manual (Page 7)

Page 7
IQ–PSI IQ Pocket Serial Interface
Fig. 2.2 Rear View of an IQ–PSI
voltage and receptacle connectors common to their lo-
cale.
Caution: Users of domestic units should use
only the AC power adapter supplied with the unit.
F. AUX Connector
A 3-pin male “Euro-style” connector is provided to con-
trol or send/receive signals from auxiliary equipment.
When the AUX output is turned on, +10 VDC (+9 VDC
if the unit is being run on battery power) is provided
across the ground and output pins. A nominal current
of 10 mA is available. The AUX connector also includes
a high-impedance input that can sense logic signals
across the ground and input pins. A mating 3-pin
“Euro-style” screw-terminal plug is also provided.
G. Crown Bus Connector
A 4-pin male “Euro-style” connector is provided for con-
nection to a single Crown Bus loop. Two pins are used for
output and two pins are used for input. See Section 3.2 for
more information. A mating 4-pin “Euro-style” screw-ter-
minal plug is also provided.
H. Battery Access Panel
Remove this access panel to replace the battery or
change the settings of the baud rate switch or IQ address
switch . To remove the access panel, slide it toward the
serial cable.
Caution: Use only alkaline batteries.
I. Baud Rate Switch (Not Shown)
A 4-segment DIP switch (SW4), located inside the battery
compartment, is used to set the baud rate. Available
baud rates range from 4,800 to 38,400 baud. See Section
3.3.1 for more information.
J. IQ Address Switch (Not Shown)
An 8-segment DIP switch (SW3), located inside the bat-
tery compartment, is used to set the IQ address so mul-
tiple units can be connected to the same Crown Bus
loop. Each
IQ–PSI must have a unique IQ address. Sec-
tion 6 lists the DIP switch settings and their correspond-
ing IQ addresses.
+
–
+
–
INPUT
OUTPUT
IN
OUT
AUX
CROWN BUS
+10 VDC EXT PWR INPUT
12345
6
7
8
1
2
4
8
16
32
64
128
1234
IQ ADDRESS
BAUD RATE THE SWITCHES SHOWN BELOW ARE LOCATED
INSIDE THE BATTERY COMPARTMENT.
MODEL:
IQ-PSI
S/N: VER:
CAUTION:
USE ALKALINE BATTERY ONLY!
ON
(DOWN)
H
38,400
19,200
9,600
4,800