Revision A • 6/06
H
A
R
R
I
S
C
O
R
P
O
R
A T
I
O
N
2-3
2 Installation
cord, will have to be changed for overseas opera-
tion. Both supplies operate from 90 to 240 VAC
on 50 or 60 Hz power.
The 50-27 in-line supply comes standard on the
NetWave-8 and NetWave-16 consoles. It has a
captive six-foot DC cable, so it must be located
near the right rear corner of the console. It is typi-
cally set on the wire tray or within the cabinet (it
can be tie wrapped to a vertical wall to save space).
This supply will get warm under normal use as it
uses free air space for ventilation, so it must never
be covered or enclosed.
The 99-1205 Universal 48-volt Supply comes
standard on the NetWave-24. It requires 2 RU of
rack space within the console cabinetry, typically
located below and to the left or right of the con-
sole. It is the same supply used with VistaMax card
frames and consoles. A detachable 15-foot DC
cable (90-1858-1) connects this supply to the
NetWave console.
Either supply must be installed such that the
keyed 48-volt supply cable is not under any ten-
sion when routed through the cabinet. The 48-
volt cable locks into a keyed power connector on
the right rear corner of the NetWave chassis.
A 90-1995 Power Coupler (optional) is avail-
able to add a redundant power supply for on-air
consoles. The main and redundant power supplies
plug into its special Y-cable, which then plugs into
the console. It hangs below the countertop.
AC GROUNDING NOTE:
Do not
defeat the IEC power cord “U” safety
ground in any way, as this may create
a potentially dangerous condition to
the operator.
GROUNDING AND SHIELDING
Terminate the facility’s technical ground wire
for the console into a crimped ring tongue termi-
nal suitable for a #8 stud. Fasten the ground wire
to the NetWave chassis using the #8 chassis screw
behind the Link connector.
When all system components share a common
ground potential (by using isolated ground AC out-
lets tied individually back to the main technical
ground), the audio cable shields can be connected
at both the console and the peripheral ends.
If isolated ground AC outlets are not used, con-
nect the cable shields at the console end only. Do
not connect the shields on the peripheral device
end. Ensure the peripheral devices connect to a
clean ground through their power cords or through
separate ground wires to the facility’s technical
ground.
GROUNDING NOTE:
The Power Sup-
ply chassis connects to the AC mains
safety or “U” ground wire.
AUDIO GROUND NOISES:
Buzz
pickup is generally electrostatic—such
as capacitive coupling between an au-
dio line and an AC power line. To avoid
audio ground noises, do not route au-
dio wires in the same wireway as an
AC power line.
NOTE:
Strong electromagnetic fields
from peripheral equipment using
switching power supplies may impair
NetWave performance, so keep these
products as far away as practical from
the console’s location.
Technical Ground Connection Point,
NetWave Chassis, right rear view
Tie a 14-16 AWG
ground wire to this
screw using a ring
tongue fastener
