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10
SS 16.4 Installation and Operation Manual
INSTALLATION
Mounting:
The SS 16.4 is designed to be rack mounted in a standard 19” rack, (2 – RU). It
should be mounted in an area that is accessible from the rear and preferably away
from sources of heat. We recommend that you bench test and become familiar with
the operation of the unit before permanently installing the SS 16.4.
Power Supply Connection:
Install the 7-pin “DIN” connector into the DIN receptacle on the SS 16.4. Mount
the “LUMP” in a convenient location. When ready, plug the “Lump in the Line” AC
cord into the appropriate AC receptacle.
Connecting The Audio Inputs, Outputs, PIP, remote control inputs and
OC/Relays:
The SS 16.4 interfaces to your audio equipment through depluggable rear panel
screw terminals. Refer to the supplied connection template. Remove each screw
terminal, strip each conductor, insert the conductor into the terminal and screw down
the capture screw. The terminals accommodate wire sizes from 16 - 28 AWG solid
or stranded wire. Connections may be made to the + and - inputs for balanced oper-
ation, or to the + input and grounding the - side for unbalanced input operation.
Connections can be made to the + and - outputs for balanced operation, or to the +
output and ground for unbalanced output operation.
It is recommended that all cables connected to the SS 16.4 be looped through ferrite
cores to suppress RF. Surge protection with RF filtering such as the Tripp Lite “ISO-
BAR 4” is also suggested for the power transformer. The purchase of an inexpen-
sive uninterruptible power supply (UPS) will provide back up in case of power out-
ages. Check out our web site for lightning protection links.
Adjusting Input and Output Levels:
Once the input and output connections have been made, the input levels can be set.
The switcher is factory set for unity. Maximum input levels should be limited to +
27dbu. Should input levels need to be changed, they are accessible from the rear
panel. Each input trimmer has one adjustment per channel. Output adjustments
must be made internally on the main circuit board. The controls are labeled “Output
Levels”.
NOTE:
Refer to the grid and
rear panel diagram on
page 19.
CAUTION!
Never connect either
the + or - outputs to
ground. The input
impedance is high,
600
Ω
terminations may
be installed on the con-
nector.
Installation of the SS
16.4 in high RF envi-
ronments should be
performed with care.
Shielded cable is sug-
gested for all control,
audio inputs and out-
puts. All shields should
be tied to the “CHAS-
SIS GROUND” termi-
nal. The station
ground should be con-
nected to the chassis
ground screw (CH1)
located behind J1 as
viewed from the rear.
For lightning protec-
tion devices, check out
www.polyphaser.com
and www.itwlinx.com.
