661: Difference between revisions

661 (view source)

No change in size , 22 February 2015

253

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 for routing trigger and timing signals between the two units?
-Some 661s have a 39 pin Bendix connector on the rear panel, perhaps to allow the 661 to be interfaced to low speed data acquisition equipment or a computer.  This is essentially a pass-through from J2 & J3, the secondary multi-pin connectors on the vertical & horizontal plug-ins.  These connectors carry switch position information (number, magnitude & units) and clock & gate pulses. Not all plug-ins had this 2nd connector; the [[5T1A]] does, while the [[5T3]] does not.
+Some 661s have a 41 pin Bendix connector on the rear panel, perhaps to allow the 661 to be interfaced to low speed data acquisition equipment or a computer.  This is essentially a pass-through from J2 & J3, the secondary multi-pin connectors on the vertical & horizontal plug-ins.  These connectors carry switch position information (number, magnitude & units) and clock & gate pulses. Not all plug-ins had this 2nd connector; the [[5T1A]] does, while the [[5T3]] does not.
 The 661 has a 137°F [[thermal cutoff]].