Specifications

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SS 4.1 MLR Installation and Operation Manual
INSTALLATION
Inspection
Please examine your SS 4.1 MLR carefully for any damage that may have been sus-
tained during shipping. If any damage is present, please notify the shipper immediately
and retain the packaging for inspection by the shipper. The package should contain the
SS 4.1 MLR, a modular cable with 9-pin “S9” female D-sub adapter, a 7.5 to 12 VDC
wall transformer and a quick start guide. Manuals may be downloaded from our web site.
Installation
Surge Protection
The SS 4.1 MLR has built-in resistance to voltage changes; we recommend that you
use a power surge protector or line conditioner on the incoming AC line. Lightning
strikes and/or other high voltage surges may damage your SS 4.1 MLR and con-
nected equipment if it is not properly protected. For lightning protection devices,
check out www.polyphaser.com and www.itwlinx.com.
UPS Standby Power System
We recommend that you connect your SS 4.1 MLR to a UPS system. A UPS helps
minimize the risk to the SS 4.1 MLR and provides power during a power outage.
NOTE: If power is lost, the last selected channel is passed to the output.
Installation/Operation
Input selection push buttons
Each push button represents an input to be routed to the switcher’s output, along
with the mute and enable push button. Each push button has an associated LED indi-
cator, which will illuminate when that particular channel is selected. When a chan-
nel is selected, the previous channel is deselected (interlock). The enable (safety)
push button can be enabled to require the user to hold down the enable push button
while selecting any of the other front panel push buttons, the enable LED is illumi-
nated when this function is enabled.
LED indicators
• “PWR” LED: Illuminates when power is applied and blinks when serial data is
active.
• “PIP” LED: Flashes to indicate PIP activity.
• “SS”: Silence Sensor indicator LED.
• “Enable” LED: Illuminates when the front panel enable push button option is
enabled.
• Channel and Mute LED’s illuminate when the input channel is selected.
Power
Connect the 2.1mm barrel type power connector into the unit and the 7.5 to 12 VDC
universal switching power supply with domestic connector into a 120 Vac 50-60 Hz
power source. Never use any type of power supply other than the specified/supplied
power supply.
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product updates and
additional information.