ETS-Lindgren 2188 Turntable - Manual (Page 8)

Model 2188 Turntable
©ETS-Lindgren—January, 2006
Rev. B—P#399771
8
1.2. Model 2188 Options
1.2.1. Model 2090 Series Positioning Controller
The Model 2090 Series Multi-Device Positioning Controller is
designed for use with ETS-Lindgren positioning devices
such as antenna towers, turntables, reverberation paddles,
multi-axis positioners, etc. to accomplish a variety of tests for
EMC compliance, antenna pattern measurements, and
more.
The Controller allows the user to synchronize the
simultaneous, yet independent movement of two primary
devices such as towers or turntables in either manual or
remote GPIB modes while controlling the on/off operation of
up to four auxiliary devices. The unit includes a GPIB bus
and is compatible with most popular software. Firmware
revision 3.11 or higher required.
Each primary device is interfaced to the controller through a
bi-directional fiber optic interface using a proprietary
command protocol. Auxiliary devices use a single fiber optic
signal to control simple on/off operation. The fiber optic
control lines that attach devices to the unit eliminate
extraneous RF interference signals that can normally be
conducted through wire signal cables.
The front panel of the Model 2090 provides the interface for
two separate and complete device controllers, each with
identical displays and function keys. The function keys let
the user configure device specific parameters, adjust limit
and position settings and control device motion. Numeric
displays and status indicators are provided for each device
interface to show positioning and operational information as
well as device parameter settings. In addition to the two
primary device interfaces, an auxiliary control interface for
four auxiliary devices is present. This interface provides
keys and indicators to allow the user to manually toggle the
auxiliary devices on or off.