Specifications
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SS 4x1 III Installation and Operation Manual
INSTALLATION
INSTALLATION GUIDELINES
It is recommended that all cables connected to the SS 4.1 III be looped through fer-
rite cores to suppress RF. Surge protection with RF filtering such as the Tripp Lite
“ISOBAR 4” is also suggested for the power transformer. The purchase of an inex-
pensive uninterruptible power supply (UPS) will provide back up in case of power
outages.
The SS 4.1 III is simple to install. Connections are via pluggable screw terminals.
Installation of the SS 4.1 III consists of seven steps:
1. Inspection
2. Removal of the source termination resistors, if applicable
3. Bench test and option set-up
4. Mount the unit in a rack (RA-1), desktop or wall
5. Connect your equipment to the unit
6. Label the front panel switches
7. Serial operation, if applicable
STEP 1: INSPECTION
Please examine your SS 4.1 III carefully for any damage that may have been sus-
tained during shipping. If any is noted, please notify the shipper immediately.
Retain the packaging for inspection by the shipper. The package should contain the
SS 4.1 III, this manual, 9 VAC @ 1 amp transformer, reversed modular cable, 9-pin
(S9) D-Sub adapter and audio and remote control mating connectors.
STEP 2: SOURCE TERMINATION RESISTOR REMOVAL
Input sources that are not selected are terminated with a 10K W. If you do not want
this load applied across the deselected sources, it may be removed from each chan-
nel. Each channel has a pair of resistors.
EXAMPLE: Channel 1, relays K1 A&B switches the signal; R15 & R21 are the
load resistors. As delivered, all channels are configured with these resistors
installed. To remove the load resistors from a channel, locate via the schematic the
proper resistors for that channel, cut its leads and discard the resistors.
STEP 3: BENCH TEST and OPTIONS
Place each unit on a workspace and connect power to the unit. Check to see if LED
#1 (Switch 1) and the Pwr/Ser LED are lit (Source one is the power-up factory
default). Connect an audio source to stereo input one and a monitoring device to the
output. Verify that audio is present. Repeat the process until each channel’s oper-
ation has been verified.
CAUTION!
Installation of the SS
4.1 III 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 “CH
GND” terminal on
each channel. The sta-
tion ground should be
connected to the chas-
sis ground screw (CH1)
located behind J1 as
viewed from the rear.
For lightning protec-
tion, check out
www
.polyphaser.com
and www.itwlinx.com.
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