Page 2 of 7 SLX Series
CONNECTIONS:
VIDEO
(CONT.)
16x2 CONFIGURATIONS:
The 16x2 systems also offer dual outputs. Outputs “AUX” and “OUT 1” located in the center of the input BNCs
provides video for channel 1. The two BNCs located on the panel without input BNCs provide channel 2 video outputs.
32x1 CONFIGURATIONS:
On a 32x1 configuration the following video connections are required. On the secondary video switch module (17-
32) connect Output “B” to the primary video switch module (1-16) “AUX”. This provides the path for inputs 17 to 32 to
the secondary switch circuitry of the primary switch module. Use “OUT” of the primary video switch module for video
output to the destination equipment. Output “A” of the secondary switch module is not used.
32x2 CONFIGURATIONS:
A 32x2 system has two sets of boards configured similar to the 32x1 system. The secondary switch connections
are made by looping the “B” outputs of the secondary switch module (17-32) to the “AUX” connector of the primary
switch module (1-16). The “OUT” connectors of the primary switch modules are used to switch video to the destination
equipment.
LOOPING CONFIGURATIONS:
The “looping” modules have slightly different markings to designate the outputs and secondary switch
interconnection BNCs. In a 16x1 or 16x2 looping video configuration the BNC labeled “Output” is connected to the
destination equipment. The BNC connector labeled “AUX” provides a bridged output in these systems.
Video signal interconnections for the looping 32 input configurations are made in the following manner. The
secondary video switch module (17-32) has two BNC output connectors. Connect the BNC labeled “Output” on the
secondary video switch module (17-32) to the BNC labeled “AUX” on the primary video switch module (1-16). The
BNC labeled “Output” on the primary video switch module is the output to the destination equipment.
Typically the video inputs are Sync Tip Clamped (STC) on composite video systems. Jumper W2 provides this. To
AC couple the inputs, move the jumper from W2 to W3 (Multi-Channel Systems).
AUDIO:
Audio signal connections are made via the detachable three position screw terminals. Each of the inputs and
output(s) has their own detachable connector. This provides a convenient means of wiring a given input or output
without disturbing the other audio interfaces. Each of the balanced audio connections; (+), (C) and (-); are marked on
the detachable connectors.
The primary audio switch module used for inputs 1-16 has a single input connector labeled “Inputs 17-32.” This
input comes from the output of the secondary audio switch module for inputs 17-32, if present. The system output
connector will always be on the primary audio switch module.
The Analog audio connections are a high impedance bridging input. This allows the inputs to be bridged from one
switch module to the input of a second switch module in a two (2) output system, i.e. SLX-162 and SLX-322 systems. If
it is desired to have the incoming signal terminated into a 600
Ω
load, it is necessary to add a 600
Ω
, 1/2 Watt resistor
across the (+), (-) terminals of the input connector. When bridging the inputs, the 600
Ω
load should only be attached to
the last connector in any given audio bridge.
The Digital audio connections are transformer coupled 110
Ω
impedance in and out per AES-3 1992 standard.
