User Manual

Overview
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3
3 Overview
The VS-81SP is a bi-directional switcher for stereo audio speaker signals on
terminal block connectors. It can switch any one of eight pairs of input
signals to one output pair or one input pair to any one of eight output pairs.
The VS-81SP has the following features:
• 8 x 1 input/output stereo connections with bi-directional
functionality
• The ability to cascade up to seven units to increase the number of
inputs or outputs
• The ability to handle both high-impedance (100/70V) and
low-impedance (8/4Ω) signals
• Control from the front panel, or via RS-232/RS-485 serial
commands transmitted by a touch screen system, PC, or other
serial control device, as well as via an infrared remote controller,
or via remote contact-closure switches
To achieve the best performance:
• Use only good quality connection cables
1
• Avoid interference from neighboring electrical appliances that
may adversely influence signal quality and position your Kramer
VS-81SP away from moisture, excessive sunlight and dust
to avoid interference,
deterioration in signal quality due to poor matching, and elevated
noise levels (often associated with low quality cables).
Caution – No operator-serviceable parts inside unit.
Warning – Use only the Kramer Electronics input power
wall adapter that is provided with this unit
2
.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
4 Your VS-81SP 8 x 1 Loudspeaker Switcher
Figure 1 and Table 1 define the unit.
1 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com
2 For example, part number 2535-000251