Honeywell SPZ-8000 Maintenance Manual page 87

Honeywell #$(!!ib.cE
Pin Name
Remarks
J1B-A1O
JIB-A2
JIB-A3
JIB-J9
JIB-A7
JIA-J9
JIA-A7
JIB-F3
JIB-E3
JIB-D2
JIB-D3
JIB-E1
JIB-A15
JIB-J15
JIA-E6
JIA-E7
JIB-G1
JIA-G9
Remote Test
IRU Orient 1
IRU Orient 2
I
SDI No. 2
SDI
No.
3
t
SDI
fro.
4
J
Align Annunciator
Nav Ready Annunciator
Warn Fault Annunciator
Attitude Annunciator
No Air Annunciator
Batt Fail Annunciator
On Batt Annunciator
Miscompare No. 1
Miscompare No. 2 }
IRU Valid
Charger Inhibit
Gnd = IRU output self-test
Open = normal operation
Handles Handles Handles Handles
Aft Forward Left Riqht
A2: open
gnd
open
gnd
A3: open
open
gnd gnd
IRU 1 IRU 2 IRU 3
B-J9
open gnd gnd
B-A7 gnd
open
gnd
A-J9 open open gnd
A-A7 open open gnd
1
Output logic:
Valid condition- Gnd
Invalid condition- open
1
Load capacity: 250 mA
These outputs are only active on IRU
No. 3 or the AHRS. The third unit
compares itself with IRUS No. 1 and 2
via ASCB. Aground on JIA-E6 =
miscompare between IRUS 1 and 3. A
ground on JIA-E7 = miscompare between
IRUS 2 and 3. The following are the
eight parameters which are compared:
pitch and roll angles; pitch, roll and
yaw rates; and longitudinal, lateral and
normal accelerations. The threshold
levels for these paramete s are:
An les 23deg.,
!1
[
Rates a 0.3 + R1 +
R2 /64 deg/sec Accel. z 0.1 +
AA1 +
AA
1/6 Ig
Open = invalid
28 V dc = valid (0.25 A max)
Inhibits the battery charger during the
power-up battery test.
Open = charger not inhibited
28Vdc=
charger inhibit (0.25 A max)
Inertial Reference Unit
Input/Output Information
Table 2-2 (cent)
22-14-00
Page 106
Aug 15/91
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