Page 1 of 7 SLX Series
SLX SERIES
RECEIVING:
It is recommended that the SLX Series switcher be inspected upon receipt. Report any damage to the shipping
company and to SIGMA ELECTRONICS, INC. Shipping cartons should be saved for use in the unlikely event that a
return shipment is necessary.
GENERAL:
The Source Select Switchers are ideal for applications utilizing standard bandwidth to high-resolution analog video
signals, mono or stereo analog audio, digital audio and serial digital video. The available configurations of the SLX
Series include 16 or 32 inputs by 1 or 2 outputs. Selection of input-to-output switching is achieved via the integral front
control panel. This control panel allows audio-follow-video, split, or breakaway modes. An additional control panel can
be remotely located if an optional Remote Control Panel has been purchased.
The SLX Series master frame provides a serial port, which will accept RS-232 or RS-422 control data. The SLX
Series Control Protocol section of this manual provides information on the serial port.
The SLX Series switchers are flexible in configurations of video and audio channels. They can be simply a single
video channel, or audio only. Video can be combined with audio in either Mono or Stereo configurations. The system
may be configured for multiple channels of video for YC or RGB applications. Sync pulse signals of -4 Vp-p can also
be switched via specially modified video boards. Many system configurations are provided by Sigma sales literature
but the SLX Series is not limited to those common configurations.
POWER:
Each frame of an SLX Series system contains a power supply to support the modules within that frame. The
number of frames required to build a system will depend upon the number of video and audio channels. The line cord
is configured for the line voltage requirement of the frame, either 115 VAC or 230 VAC.
The same power supply is used in both 1RU and 2RU frames. The only difference in the two configurations is the
metal back panel to accommodate the frame size. The power supply contains a step-down transformer and rectifiers,
which produce three unregulated voltages; +9VDC, +17 VDC, and -17 VDC. Each module within the frame has
regulators, which produce the regulated DC bus voltages for the required circuitry. The module may contain regulators
for +5 VDC, -5 VDC, +12 VDC, and -12 VDC.
FRAMES:
Frames are provided in a 1RU or 2RU size dependent upon the number of modules required to configure the
system. The local control panel is attached to the front of the frame. Each frame within a system contains a power
supply, video modules, and/or audio modules. Only the master frame contains an SCI (system control interface)
module. Control data is looped from the master frame to each of the other slave frames via an external cable that is
supplied with the SLX switcher.
CONNECTIONS:
VIDEO:
Digital and analog video signals connect to the SLX Series by a common method. BNC style connectors are used
for video inputs as labeled on the rear of the unit. Inputs are labeled 1-16 or 1-32 based on the system configuration.
The system, as configured at the factory, provides inputs terminated into a 75
Ω
load or looping. The looping systems
are indicated by the addition of an (L) suffix, i.e. SLX-161 VO(L) supplies 16 inputs with non-terminated BNC loop
through.
The output connectors are located in the center of the video switch module. The output BNC connectors are
marked on the printed circuit board. Depending upon the function of the module, the video BNCs will be marked as
described below.
16x1 CONFIGURATIONS:
The outputs are provided by the “AUX” and “OUT” BNCs. This dual output provides the same video signal on both
BNCs. When a video switch is performed both outputs switch simultaneously.
