Download X64 Xcelera-CL PX4 User`s Manual

Configuration Micro-switches
Three sets of 4 switches are used for user configurations not controlled by software. The following figure
is a typical view of each switch set, shown with the individual switch set in the OFF position. Following
the figure, each of the three switch sets is described. Refer to the board component layout for their
positions.
ON
OFF
1
2
3
4
SW1, SW2, SW3 Component View
SW1: General Inputs Signal Switch Point
For each general input, select the threshold voltage detected as a logic high signal. See "Note 1: General
Inputs Specifications" on page 94.
SW1
Switch Number
Assigned to
1
general input 1
2
general input 2
3
general input 3
4
general input 4
OFF Position
Logic Transition at
~2 volts
(preferred for differential
signals)
ON Position
(default)
Logic Transition at
~10 volts
SW2: Trigger Inputs Signal Switch Point
For each trigger input, select the threshold voltage detected as a logic high signal. See "Note 3: External
Trigger Input Specifications" on page 95.
SW2
Switch Number
Assigned to
1
trigger input 1
2
trigger input 2
3
NA
4
NA
X64 Xcelera-CL PX4 User's Manual
OFF Position
(default)
Logic Transition at
~2 volts
(preferred for differential
signals)
ON Position
Logic Transition at
~10 volts
Technical Specifications  85