EnBOX User’s Manual
Introduction
9
1.
Introduction
This chapter describes the general characteristics and main features of the CAEN
ELS EnBOX - Dual Encoder Readout Box.
1.1
EnBOX overview
The CAEN ELS EnBOX is a stand-alone readout device that must be used to
interface the BEST system with RENISHAW TONiC™ and RESOLUTE™ in-air or
UHV encoders. The EnBOX provides a TCP/IP server to obtain data from encoders,
to configure the device and to check the operational status. The SFP interface on the
back provides a communication link to transmit the measurement data to the CAEN
ELS BEST Central Unit over an optical fiber connection.
The EnBOX provides a BiSS® interface to communicate with RENISHAW
RESOLUTE™ encoders and quadrature encoder readout logic to interface with
RENISHAW TONiC™ encoders. Please note that any monitoring instrument using
the same two communication protocols can be read by an EnBOX unit. Contact
CAENels or S.RI.Tech for details in case of need to interate devices different from the
RENISHAW encoders mentioned above.
The EnBOX front-end, composed of interface circuitry and power supply
circuitry is galvanically separated from digital and chassis ground.
The EnBOX has two integrated power supply circuits (one power supply is
dedicated to "REL 1" and "ABS 1" connectors and one to "REL 2" and "ABS 2"
connectors). Each power supply circuit can provide up to 3W of power at 5V rail.
This is more than enough to power RENISHAW RESOLUTE™ encoders which
require 1.25W and RENISHAW TONiC™ encoders which require just 1W of power.
The EnBOX is housed in a light, robust and extremely compact metallic box
that can be placed either close to the encoders or next to the BEST central control
unit.
