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11: RS232 SERIAL PORT (DB9)
Serial data port utilizing a DB9 female connector.
For connection to system control systems such as
Crestron and AMX. Mates with C13 power cord
connector. Determine the correct operating volt-
age from the DATA PLATE and connect to an ap-
propriate power source using an approved power
cord.
12: ETHERNET PORT (RJ45)
For interconnections to personal computers (and/or
routers) to facilitate SP3 software updates and also
for control functions through audio system controls
(Crestron, AMX, etc.) and computer control appli-
cations.
13: TOSLINK DIGITAL AUDIO OPTICAL INPUTS
The SP3 offers two assignable TOSLINK optical in-
puts. These can be designated to any input using
the OS menu ("Other Settings")on the LCD screen.
Please note that if you choose to assign an optical
input to an input with a coaxial input, the coaxial will
be over-ridden and the optical input signal will be
used by the SP3.
The pro model replaces the two TOSLINK connec-
tors with a single AES/EBU Digital connector.
14: TRIGGER INPUTS & OUTPUT
Four 3mm two-conducter phone jacks with the tip
being positive and the sleeve being negative. A
voltage of between 3 and 12V on the trigger input
will turn the SP3 on. Removing the trigger voltage
will cause the SP3 to turn off. The input voltage can
be of either polarity, that is, the phone plug tip can
be positive and the sleeve negative, or visa versa
The three outputs can be programmed to go either
high (+12Vdc, ±0.6V) or low (gnd) when specified
inputs are selected. These assignments are found
in the SOURCE menu (SOURCE MISC TRIG-
GERS).
A delay can also be specified (in the SYSTEM
MISC TRIGDELAY menu) to delay the time when
the trigger output goes to the chosen state (high or
low) after an assigned input has been selected. See
also Refer to the Menu Tree on page 14
15: USB 2.0 TYPE A INPUT
Used as a digital audio input an as a control input
for certain audio control systems.
16: AUXILIARY INFRA-RED INPUT
A 3mm two conductor phone jack which will accept
a hardwired DC voltage that is the electrical equiva-
lent of the optical signal generated by an infrared
emitter in a remote control. This will primarily used
as by infra-red remote control extenders. The tip
is positive, the sleeve is negative and the signal lev-
el should be 5vdc max. (Positive or "1") and 0v or
ground (negative or "0")
17: AES/EBU BALANCED DIGITAL INPUT
Two 3 pin female XLR jacks for digital audio inputs
conforming to the Audio Engineering Society/Eu-
ropean Broadcasting Union standard formalized
as the IEC 60958 standard using 110 Ohm shielded
twisted pair wire.
18: SINGLE ENDED (UNBALANCED) 7.1
SURROUND SOUND INPUTS
Eight RCA jacks for connecting single-ended analog
surround signals to the SP3; Front-Left, Front-Right,
Front-Centre, Left Surround, Right-Surround, Back-
Left, Back-Right & Sub-woofer.
19: BALANCED ANALOG INPUTS
Four XLR female jacks (2 left/right pairs) referred to
as Balanced Input #1 and Balanced Input #2. These
inputs conform to the EIA RS-297 standard wherein
pin #1 is ground (chassis & shield), pin #2 is positive
and pin #3 is negative.
20: BALANCED ANALOG AUDIO 7.1 + 2
SURROUND SOUND OUTPUTS
Ten 3-pin XLR male connectors conforming to the
EIA RS-297 pinout (pin #1 = ground, pin #2 = posi-
tive and pin #3 = negative). In addition to the usual
eight 7.1 outputs (Front-Left, Front-Centre, Front-
Right, Surround-Left, Surround-Right, Surround-
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