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|  M, L-N-81604C(AS)
I
Para 3.5.1.9.1b(1)
(cont)
indicated by +3.8 1.4 volts d-c and the nor- *
mal operating temperature state shall be indi-
cated by +0.25 0.25 volts d-c when looking
*
into an open circuit.
(2)
Servo No-Go - The true state of this signal
indicates a malfunction in the servo amplifier
circuitry in the IMU. The true or No-Go state
shall be indicated by +0.25 0.25 volts d-c,
while the Go condition shall be indicated by *
+3.8 1.4 volts d-c when looking into an
open circuit.
(3)
Spin Supply No-Go - The true state of this
signal indicates a malfunction of the gyro
spin circuitry. Its operating conditions
are the same as the Servo No-Go conditions
and characteristics.
.
(4)
Quantizer No-Go - The true state of this
signal indicates a malfunction of the
quantizer circuitry. Its operating condi-
tions are the same as the Servo No-Go condi-
tions and characteristics.
c.
Standard Response Outputs
up to 25 output lines which will present the d-c
voltage or logic level responses to the recom-
mended stimulus pattern. The normal output of
each response line for any stimulus combination
shall be either +5 VDC, 0 VDC, -5 VDC, or analog
d-c outputs between -15 and +15 volts.
The tolerances on IMU responses to ideal stimuli
shall not require measurement to an accuracy more
precise than 0.25 percent. The IMU may be designed
so that some of the standard response output lines
monitor power supply voltages properly divided to
present +5 VDC or -5 VDC on the output line.
-15 VDC (Memory) Monitor - This signal shall
(1)
be an analog test point output indicating
the -15 volts d-c is being input to the IMU
*
memory module. The -15 volts shall be divided
*
down to a -5 volt d-c output within the IMU.
*
The range on this output signal for a Go or
true condition shall be -5.35 to -4.85 volts
*
d-c when looking into an open circuit.
*
94
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