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User's Manual (MUT)
Mod. V993 B Dual Timer
03/03/2004
3
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00114/00:V993x.MUTx/03 V993B_REV3.DOC
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9
3. Operating Modes
3.1.
Installation
The V993 B board is provided with the P1 connector only, so it is suitable for both
standard VME 6U and VME V430 crates.
CAUTION
ECL INPUTS ARE SUSCEPTIBLE TO DAMAGE FROM ESD
(ELECTROSTATIC DISCHARGE). TO PREVENT THE RISK OF DAMAGING,
THE USER SHOULD NEUTRALIZE ANY STATIC ELECTRIC CHARGE BUILT UP
ON THE BODY (e.g. TOUCHING AN EARTHED OBJECT) BEFORE
HANDLING THE ECL CONNECTORS
CAUTION
ALL CABLES MUST BE REMOVED FROM THE FRONT PANEL BEFORE
EXTRACTING THE BOARD FROM THE CRATE!
3.2. Timer
triggering
The board has two sections housing one triggered pulse generator each. Each section
produces an adjustable width pulse when triggered. The trigger START signal can be
sent as external NIM/ECL signal on the relevant START connectors or by pulling towards
right the START/RESET switch (see § 2.4). Note that output pulses are not retriggerable:
the START signal/switch is inactive as long as the output status is true.