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MIL-E-63300A(AR)
a.  Turn on conditions.  A resistance change from 3.9 x 103
ohms + 5% to 10 x
ohms + 5% that occurs after electronic arm
at any one of the four inputs of the tripline-sensor interface
circuit shall cause the turn on of the detonator firing circuit.
b.  Non-turn on conditions.  A resistance change from a short
( <10 ohms) to 10K ohms ( 5%) at each input of the tripline sensor
interface circuit before electronic arm shall not cause the turn-on
of the detonator firing circuit at or after electronic arm. A
resistance change from a short ( < 10 ohms) to 3.9K ohms ( 5%) at
each input of the tripline sensor interface circuit after electronic
arm shall not cause the turn-on of the detonator firing circuit.
3.4.4 Primary Time Base (PTB) oscillator check.  The oscillator
check circuit shall initiate the turn on of the detonator firing
circuit when the PTB oscillator period becomes greater than the test
time base oscillator period.  This requirement shall be tested as
specified in 4.5.12.
3.4.5 Detonator fire signal output energy.  The electonic
assembly shall provide energy to fire the piston actuator, or the
pressure cartridge, or the detonator when required as described in
this specification.  The output energy shall be such that a minimum
of three (3) volts shall be measured no more than forty (40)
microseconds after a fire output signal is generated, and a minimum
of two (2) volts is measured at a minimum time of one hundered
twenty (120) microseconds after the fire output signal is
generated.  Voltages shall be measured at the applicable output
terminals across a 3.9 ohm ( 5%) resistive load.  This requirement
shall be tested as specifiedin 4.5.13.
3.4.5.1 Piston actuator firing circuit.  When turned on, the
piston actuator firing circuit output signal shall remain on for
only one PTB clock counts, that is, a time interval equal to one PTB
oscillator period.
3.4.5.2  Pressure cartridge firing circuit.  When turned on, the
pressure cartridge firing circuit output signal shall remain on for
only one PTB clock count.
3.4.5.3 Detonator firing circuit. When turned on, the
detonator firing circuit output signal shall remain on for as long
as the electronic assembly is functionally operational or is
intentionally reset.
5

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