Specifications

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9
SS 4.2 Installation and Operation Manual
INSTALLATION
Mounting:
The SS 4.2 is designed to be rack mounted in a standard 19” rack. It should be
mounted in an area that is accessible from the rear and preferably away from sources
of heat. We recommend before permanently installing the SS 4.2, you bench test and
become familiar with the operation of the unit.
Power Supply Connection:
Install the 16.5 Vac @ 600ma power supply connector into the power receptacle on
the SS 4.2. When ready, plug the power supply into the appropriate AC receptacle.
Connecting The Audio Inputs, Outputs, Status Inputs And OC/Relays:
The input channels are numbered from 1 through 4 on the rear panel from left to
right. The SS 4.2 interfaces to your audio equipment through depluggable (Euro)
screw terminals. Follow the legends for the desired audio input and output connec-
tions, which appear on the rear side of the printed circuit board and also on the lay-
out drawing on the last page of this manual. 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 operation, 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.
The input impedance is 20K
ΩΩ
, 600
ΩΩ
terminations may be installed on the
connector.
CAUTION!
In no case should
either the + or - out-
puts be connected to
ground.
Installation of the SS
4.2 in high RF environ-
ments should be per-
formed with care.
Shielded cable is sug-
gested for all control,
audio inputs and out-
puts. All shields should
be tied to the “EGND”
terminal on each chan-
nel. The station ground
should be connected to
the chassis ground
screw (CH1) located
behind J1 as viewed
from the rear. For
lightning protection
devices, check out
www
.polyphaser.com
and www.itwlinx.com.
Remote Mode DIP Switches
SW13-7 Function
OFF Remote Control
ON PIP enabled
Power-up Mode DIP Switches
SW13-8 Function
ON Last Source Selected
OFF Program via front panel
SS 4.2 Front Panel switch operation
Action Result
1. Push Channel
Button in the
“OP-1” area
Channel is connected to output 1. To mute the
active channel, simultaneously hold down the
mute switch and the desired input channel.
1. Push Channel
Button in the
“OP-2” area
Channel is connected to output 2. To mute the
active channel, simultaneously hold down the
mute switch and the desired input channel.