Kramer Electronics VP-108 - Manual (Page 5)

Overview
3
3 Overview
The high-performance VP-108 1:8 XGA / Balanced Stereo Audio DA is an
8-channel distribution amplifier for VGA/XGA and stereo audio (balanced or
unbalanced) that uses 15-pin HD connectors for the VGA-type signals, and
detachable terminal block connectors for the audio.
In particular, the
VP-108:
Is unique in that each of the eight XGA outputs, and each of the eight
stereo audio outputs, may be individually enabled or disabled 1 , replacing a
switcher which would typically be used in such setups
Is controllable (switching of the outputs) via RS-232 or RS-485 serial
commands transmitted by a touch screen system, PC, or other serial
controller, as well as via external dry contact switches
Stores the output configuration in non-volatile memory so that the
machine will restore its power-down status when power is returned
Uses solid-state electronic switching, and low-noise amplifying circuitry
throughout the unit, and the sync pulses are detected and reconstructed
before amplifying and buffering to the outputs
Has a high video bandwidth, ensuring that each unit remains transparent
even at the highest resolution VGA modes such as XGA
Achieving the best performance means:
Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching, and
elevated noise levels (often associated with low quality cables)
Avoiding interference from neighboring electrical appliances and
positioning your VP-108 unit in a location free from moisture, excessive
sunlight and dust
4 Your VP-108 1:8 XGA / Balanced Stereo Audio DA
Figure 1 and Table 1 define the VP-108 1:8 XGA / Balanced Stereo Audio
DA:
1 Using the REMOTE connector (see section 6.3) or via RS-232 or RS-485