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D331AT Sync & Gate Module


This module is designed to deliver repetitive bursts of pulses. The bursts can last a set duration of time and can be repeated with a set repetition interval.  If the duration time is set too long so that a second repetition command is requested during a burst, it is ignored, the requested burst duration is completed and an error is indicated.

Full external control and monitoring is provided for both the gate (repetition and duration) and pulse (frequency and width) function.

The left-hand side of this module provides the front panel power switch, power-on/fault bi-colour LED, synchronising sockets, single pulse button and indicator for the GATE waveform.

The right-hand side of this module provides control of the gating function so that bursts of pulses can be delivered at accurately set intervals (repetition) for accurately set periods (duration). The pulse frequency and width would be set by a D332T - Pulse.

  
Power
Switch: Mounting for the rod that activates the switch in the PSU. Push on, push off.
Error/On: Red/Greed LED
 
GATE Repetition
Total Range : 1 - 1100 seconds
Divider: Internal jumper for total range 0.1 - 110 seconds
Control: 10-turn (3600o) dial control with lock
marked 1 - 11 turns sub marked in 1/10 and 1/50 turn.
Accuracy: +1% through dial range.
Multiplier: x1, x10, x100
 
GATE Duration
Total Range: 0.1 - 110 seconds
Divider: Internal jumper for total range 0.01 - 11 seconds
Control: 10-turn (3600o) dial control with lock
marked 1 - 11 turns and sub-marked in 1/10 and 1/50 turn
Accuracy: +1% through dial range
Multiplier: x0.1, x1, x10
 
Warning Indicator
Error:  Red LED that illuminates if the Repetition is set too high for the set Duration.
 
GATE Synchronization
Ext. Input: TTL input for external control of the Gate signal
triggers at +1.5V
Maximum input +15V
Selector: EXT. - External control of Gate Repetition and Duration
INT. - Internal control of Gate Repetition and Duration.
CONT. - Pulses continuously enabled
Indicator: Amber LED, on for Duration of Gate
Sync. Output: TTL output for external monitoring of Train waveform
optionally :- +15V positive pulse by on board jumper.
 
Pulse Synchronisation
Ext. Input: TTL input for external control of the Gate signal
   triggers at +1.5V
   maximum input +15V
   active high
Selector: 1) External control of Pulse Frequency and Width
2) External control of Pulse Frequency (Int Width- D332T)
3) Internal control of Pulse Frequency and Width (D332T)
Single: Push button to give single output pulse irrespective of any other settings.
Sync. Output: TTL output for external monitoring of Pulse waveform
optionally :- +15V positive pulse by on-board jumper.
Connectors: Ext. Input and Sync Output sockets are Lemo type RA00250 Mating plugs and leads are available.


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