Revision A • 6/06
H
A
R
R
I
S
C
O
R
P
O
R
A T
I
O
N
2-21
2 Installation
Each digital output is an AES-3 compatible sig-
nal. AES-3 outputs cannot connect directly to an
S/PDIF input. To do this requires a signal trans-
lation interface.
UNBALANCED CONNECTIONS
Although all analog inputs and outputs are
active and balanced, unbalanced consumer or
“semipro” equipment can be connected to the con-
sole. For best results, connect an unbalanced de-
vice through an IHF-PRO match box and keep
the unbalanced cable lengths as short as possible.
If a match box is not available, connect an un-
balanced device directly to a NetWave input us-
ing the following illustration.
When an unbalanced device must be connected
to a NetWave balanced analog output, and an IHF-
PRO match box is not available, do not tie the
low (-) and shield pins together to “unbalance” the
signal. The low output pin must always be left float-
ing when unbalancing a NetWave output, as shown
in the following illustration.
S/PDIF Signals
Digital devices with only an S/PDIF digital out-
put can connect to a NetWave input, but only if a
249 ohm resistor is used to impedance match the
S/PDIF cable. Install the resistor on the MOD IV
housing per the following illustration.
An unbalanced-to-balanced line transformer can
alternately be used to interface an S/PDIF signal.
Note 1:
A signal conversion interface must be
used to connect an AES/EBU output to a S/PDIF
input.
Note 2:
Some S/PDIF signals may not work with
the NetWave’s inputs, even with the additional load
resistor or a transformer, because of nonstandard
levels or protocols in the S/PDIF product.
NETWAVE SAMPLE RATE
NetWave uses the professional audio sample rate
of 48 kHz for all its internal audio mixing and
routing. Each digital input has an integral sample
rate converter to convert incoming sample rates
from 25 to 50 kHz to the console’s internal 48
kHz sample rate.
The console’s digital outputs are normally
sample rate converted to 44.1 kHz, but each can
be set for 48 kHz output through settings on the
multi-switches on the Monitor & Output board
(page 2-10 covers the switch settings).
When the console is used in a stand-alone ap-
plication, the console cannot be locked to an ex-
ternal time reference. If this is required, then the
NetWave must be networked with a VistaMax sys-
Connecting an S/PDIF Device to
a NetWave AES/EBU Input
249 ohm resistor
From
S/PDIF
Device
Console
AES/EBU
Input
Signal
Shield
3
2
1
Connecting an Unbalanced Stereo Device
to a NetWave Analog Input
Console
Balanced
Input
From the
Unbalanced
Device
R
L
Shields
3 6
2 5
1 4
Console
Balanced
Output
To the
Unbalanced
Device
R
L
Shields
Connecting an Unbalanced Device
to a NetWave Analog Output
(Nominal Output is -2 dBu)
(Make no connections to pins 2 & 5)
3 6
2 5
1 4
