Installation Solutions Modules
MARC 70 Switching and Interface Modules provide system engineers and installers with simple to install,
PMA certified solutions to previously complex installations. MARC 70 modules can be mounted individu
-
ally in the SRU 1 or grouped in the SRU 5 and SRU 10 multi-module enclosures. No matter which mounting
method you choose, servicing the module is as easy as pulling one out and inserting another. And as with all
SANDIA aerospace
products they are back by a three year no hassle warranty.
Special Interface Modules
SA 3/SA 3L/SA 3NVG
Regulator/Dimming Module
Provide .5 amps of annunciator drive
(1 amp short term for test purposes).
The SA-3 and SA-3L provide two lev-
els of brightness for day and night set-
tings. The SA-3 is used with incandes
-
cent lamps, the SA-3L is for use with
LED lamps. The SA-3NVG provides
a third level of display brightness for
NVG applications
. FAA-PMA
SA 15
Inverter Module
The SA 15 signal inputs in order to
provide common annunciator switch-
ing. The SA 15 has 14 inverter out
-
puts. PMA Pending
SA 24
Diode Isolation Module
Provides 23 lines of diode ground-in-
ground-out isolation. Internal FET al
-
lows simultaneous test of all lines to
ground. Requires 28Vdc in for test.
FAA-PMA
Choice of Enclosures
SRU 1
Single Card Enclosure
SRU 5
Five Card Enclosure
SRU 10
Ten Card Enclosure
Mil Qualified Switching Modules
SR 623
The SR263 has two, six pole nitrogen
filled relays. The two relays can be
activated simultaneously or individu-
ally. FAA-PMA
SR 343
The SR 343 has three, four pole nitrogen
filled relays. The three relays can be
activated simultaneously or individu-
ally. FAA-PMA
SR 623
The SR 623 has six, two pole ni
-
trogen filled relays. The six relays
are activated individually. FAA-
PMA
GA Switching Modules
SR 34
The SR 34 uses three, four pole sealed
relays to provide 12 lines of switch-
ing. Coil current 60mA. PMA Pend
-
ing
SR 54
The SR 54 is a twenty pole relay unit
ideally suited for switching the HSI
between GPS and VOR/LOC func
-
tions. Coil Current 120mA. PMA
SR 64
The SR 64 is a multi-purpose relay
module that provides 24 lines of
switching. Coil current 120mA.
FAA-PMA Pending
3700 Osuna Rd. NE
Albuquerque, NM 87109
www.sandia.aero
SANDIA aerospace
R3-0912-1000
Summary of Contents for MARC-70
Page 14: ...Page 11 3 2 1 SRU 1 Outline Dimensions Figure 3 1 SRU 1 Outline Dimensions ...
Page 20: ...Figure 3 4 SA 3 SA 3L Schematic and Pinout Page 17 ...
Page 21: ...Figure 3 5 SA 3 NVG Schematic and Pinout Page 18 ...
Page 22: ...305147 00 Figure 3 6 SA 15 Invertor Module Rev A Page 19 ...
Page 23: ...Figure 3 7 SA 24 Diode Isolation Test Module Page 20 ...
Page 25: ...Page 22 Figure 3 9 SR 54 20 Pole Switching Module ...
Page 27: ...Figure 3 11 SR 343 12 Pole Switching Module Page 24 ...
Page 28: ...305147 00 Figure 3 12 SR 623 12 Switching Module Page 25 ...
