EnBOX User’s Manual
Introduction
11
Figure 2:
rear view of a EnBOX unit
Two D-Sub DE-9 connectors for the absolute encoders (RESOLUTE) and two
D-Sub DA-15 connectors for relative encoders (TONIC) are placed on the front side.
Two LEDs designated with “R” (relative) and “A” (absolute) show which encoders
are selected in firmware (see “ENC_SEL” command).
A blue “Status LED” is used to signal the correct operation of the device.
During normal operation of the EnBOX unit the “Status LED” is blinking with a
frequency of 0.5Hz – i.e. the LED changes its status every 2 seconds – on the other
hand, if a fault condition arises, the LED blinks with a higher frequency than 2 Hz.
The power connector, power switch, two LEDs, LEMO connectors for I/O
triggers, interlock and general I/O connector, a standard RJ45 Ethernet connector and
an SFP connector are placed on the rear panel of the device.
The blue “CFG” led shows that the unit’s FPGA is correctly configured (in
this case the LED is turned on). The green “DC OK” LED indicates that the internal
sections are correctly powered.
The three LEMO connectors for I/O triggers are also placed on the rear panel.
Two of them act as inputs (annotated as “IN 1” and “IN 2”) and one acts as an output
(annotated as “OUT”). The connectors are reserved for future use.
Ethernet and SFP
communication
interfaces
Power Switch
Power and
Configuration
LEDs
Trigger
connectors
Power
connector
Interlocks and
general
input/output
connector
Reset
button
