Introduction; Matrix Switching And Zone Expansion; Ir And Rf Remote Control And Keypad Operation; Computer Control Systems - Vaux Electronics Lattis 1600 Series Owner's Manual

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 simply use "Y-cables" to split to two or three
Lattis inputs, or a "Distribution-Amp" (DA) may be used to buffer each source for driving multiple Lattis Matrix
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 and RF Remote Control and Keypad Operation

Lattis Matrix Switchers may be operated by hand-held Vaux RC-16-IR infrared (IR) remote controls. When used
with an optional RC-RFX1 receiver, the Lattis models may also be operated using a radio-frequency (RF) remote,
the RC-16-RF. 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. Vaux programmable keypad systems may also be used to control Lattis
switchers. 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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