Vaux Electronics 1600 Series Owner's Manual page 3

Introduction
Thank you for selecting a Vaux Lattis Matrix Switcher. These systems have been designed for the utmost in performance and
reliability. There are currently four models in the Lattis Matrix Switcher family:
LE-800A 8-source by 8-zone, audio-only
LE-1600A 16-source by 16-zone, audio-only
The LE-800A, LE-800AV, and LE-1600A systems provides high-fidelity stereo line-level switching, zoned
volume/bass/treble/muting, programmable min/max/mute/initial-volumes, and other customizable features. The systems may be
controlled using infrared remote controls, keypads, and/or RS-232 serial control from a computer or other control system (e.g. AMX,
Crestron...). The source inputs are driven from any line-level source, while the volume-controlled zone outputs connect to power
amplifiers for each stereo zone. In the case of the LE-800AV and LE-1600V, the video switching is line-level composite video, for
NTSC or PAL systems.
Matrix Switching and Zone Expansion
The Lattis Matrix Switcher is a multi-source/multi-zone audio (or audio/video) distribution and control system. A Lattis system
allows multiple audio (or audio/video) sources to be routed to multiple zones (one or more rooms). Each zone of the system has
independent control over source-selection, volume/bass/treble levels, muting, etc.
Multiple Lattis Matrix Switchers may be combined to expand the number of zones. For example, three 16x16 Lattis LE-1600A
switchers may be use to provide a 16-source by 48-zone system. The units are simply programmed to respond to different "Base-
Zones," (1, 17, and 33) allowing contiguous zone numbers from 1 to 48. A Vaux system may expand this way to a total of 255 zones.
The audio sources may be daisy-chained between multiple Lattis Matrix Switchers by ordering the optional ribbon-cable expansion
kit. If your switcher does not have the ribbon-cable option, you may use "Y-cables" to split each channel to multiple Lattis inputs, or
a "Distribution-Amp" (DA) may be used to buffer each source for driving multiple switchers. For video sources (when using a Lattis
LE-800AV or LE-1600V), a DA is not needed since each source has a buffered output which is used to connect to the video input of
the next switcher. With video signals, a Y-cable cannot be used since it is mandatory to maintain proper 75-ohm video line
impedance. You may also mix and match Lattis switchers to provide different features. For example, an 8x8 audio-only LE-800A
may be combined with an 8x8 audio/video LE-800AV, providing eight sources by sixteen zones (eight of these zones have video).
IR Remote Control and Keypad Operation
Lattis Matrix Switchers may be operated by hand-held Vaux RC-16-IR infrared (IR) remote controls. The remote controls allow
selection of A/V source, adjustment of each zone's Volume/Bass/Treble levels, as well as system setup and programming functions.
The Vaux RC-16 remote control is easily programmed to control one specific numbered zone – the remote's zone number may easily
be changed to move the remote to a different room. IR control from multiple rooms will require a wired or wireless IR-Repeater
system, which uses IR sensors in each room. The Vaux RC-16-IR remote may also be used to teach the Vaux control codes (for one
zone) to a third-party hand-held "learning" remote. Additionally, third-party IR-learning keypads may also be employed, using a
Vaux RC-16-IR remote to teach the Lattis commands to the keypad.
Computer Control Systems
The Lattis Matrix Switcher may be completely controlled by an attached computer, or other control system (such as AMX or
Crestron) which communicates over a serial, RS-232 connection. The host computer has complete control over A/V zone switching,
volume/bass/treble levels for each zone, etc. The Lattis system sends messages to the control system confirming actions for not only
RS-232 commands, but also for RF-, IR-, or keypad-generated commands, closing the loop on the whole system. The control system
may optionally poll periodically for system status, or may simply ignore messages for a basic command-only interface. Serial
communication uses the VauxProtocol standard, presented later in this manual.
LE-800AV 8-source by 8-zone, audio/video
LE-1600V 16-source by 16-zone, video-only
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