LOGIC COMPONENT
TECHNOLOGY GUIDE
NEXSYS™ LOGIC Component Technology by Applied Avionics provides electrical system design engineers with the opportunity to create
additional avionics system functionality and system integration, replacing the need for software modifications and oversized, single-function
hardware. LOGIC components can be packaged inside of VIVISUN® lighted pushbutton switches or a NEXSYS LOGIC Module. With over 1,000,000
distinct mix-and-match combinations of specific components, LOGIC Component Technology offers unparalleled design flexibility in a variety
of standard enclosures. The online Part Configurator makes specifying the exact combination of parts required for any application accurate and
quick, and can deliver a complete part number on demand. LOGIC components have all been designed and tested in accordance with DO-160.
Component Design Flexibilty
IT
G
Electronic Latch
OR
CT
ELE
NS
Voltage Sensor
Pulse/Timer
Solid State Relay
Diode Pack
NEXSYS
Mix-and-Match inside of
NEXSYS™ LOGIC Modules
Defined Logic
Terminal Block
L O G I C & I N T E R FA C E
Data Sheet: DS-LCT-15
www.appliedavionics.com
C TORS
DETE
S&
Electronic Rotary
VIVISUN
Mix-and-Match inside of VIVISUN®
LED and Incandescent
Switches and Indicators
SE
RO
NI
W
CS
IN
CH
LO G I C C O M P O N E N T O V E R V I E W
LO G I C C O M P O N E N T T E C H N O LO G Y
Sensors & Detectors
Electronic Switching
EL1, EL2
Electronic Latch (8-pin)
Pulse/ Timer (8-pin)
• U
ses an internal electronic flip-flop to replace
Magnetic or Solenoid Switches
• Set, Reset and Toggle Capabilities with builtin Blink circuitry
• Provides a significant weight, power and
reliability improvement over traditional
electromechanical latching options.
• EL1 powers up in RESET state with BLINK off;
EL2 powers up in SET state with BLINK active
• Ability to reset to an off or “safe” position on
power up
• Local, Remote and Lockout Control
• See Data Sheet DS-EL1-12
• Dual channel, edge detecting, one-shot pulse
generators each producing a timed output
signal that can be active high or low with
specified time intervals from 125 ms to 20
seconds
• Replaces external one-shot pulse generators,
timers and time delay relays
• Responds to any reciprocal transition such as
“Weight On/Off Wheels” or “Open/Close”
• Channels may be connected in series for
custom timing options
• See Data Sheet DS-PT1-12 for complete
information and additional coding parameters
PT1
Voltage Sensor (4-pin)
Electronic Rotary (8-pin)
ER1
• A
llows a single illuminated pushbutton
switch to cycle through up to 4 latched states
• Holds the existing latched state until either
the next increment input (high to low
transition) or a remote reset occurs
• Sink up to 2 amps with a resistive load
• Accepts reset from an external input for
external override
• Maintain operational status with power drop
to 200ms
• See Data Sheet DS-ER1-11
VSD1
Solid State Relay (4-pin)
SSR1H,SSR2H
SSR1M,SSR2M
SSR1L,SSR2L
• N
ormally open (SSR1H, SSR1M, SSR1L) and
normally closed (SSR2H, SSR2M, SSR2L)
options available
• Switch power or ground up to 0.75 amps
normally open and 0.25 amps normally closed.
• Convert logic level input to 28 VDC aircraft
power
• Provide signal polarity reversal (High to Low
or Low to High)
• SSR activates when an input voltage of 4 to
6 VDC (SSR1L, SSR2L), 8 to 18 VDC (SSR1M,
SSR2M) or 18 to 32 VDC (SSR1H, SSR2H) is
applied
• Provide output switching up to 32 VDC or
28 VAC rms
• See Data Sheet DS-SSR1-11
• Monitor DC under-volt or over-volt condition
and deliver a discrete output signal
• Set point range from 2 VDC to 50 VDC, 1V
increments
• Output selectable as active low or open
(high impedence)
• Units can be combined with an Electronic
Latch to create a wide hysteresis voltage
sensor with separate pull-in and drop-out
voltages.
• See Data Sheet DS-VS-14 for complete
information and additional coding parameters
Logic & Interface
Defined Logic (8-pin)
DL1, DL2,
DL3, DL4
• B
oolean AND, OR, NOT (Inverter) and
Exclusive OR capability
• Replaces power or ground drop-out relays,
and traditional diode and relay logic devices
• Available as 2 input Exclusive OR (DL1), dualchannel 2 input (DL2), 4 input with 2 cascaded
levels (DL3) and 4 input decoder (DL4)
• See Data Sheet DS-DL-13 for complete
information and additional coding parameters
Diode Pack (4-Pin)
DIODE
PACK
Mechanical Switching
Single & Double Break Switches (3 or 4-pin)
DP2C, DP2M
• H
igh reliability snap action switches that are
MIL-PRF-8805/101
• Silver (silver with gold flash) or Gold (gold
PUSHBUTTON
plated) contacts
LATCH
• Single Break or Double Break option
• Gold switch contacts required when used in a High Capacity body containing an 8 pin device
• 2 independent diodes per component
• Can be configured with two commercial
diodes (DP2C) or two military diodes
(DP2M)
• Increases design flexibility
• See Data Sheet DS-DP-13
Terminal Block (4-Pin )
TERMINAL
BLOCK
TB4
LCT-2
• Rated at 5 amps
• Can occupy unused switch poles to increase
design flexibility
• 10 pin external terminal block also available
• See Data Sheet DS-DP-13
C O M P O N E N T C O N F I G U R AT I O N S
LO G I C C O M P O N E N T S
LOGIC Module
H J&K L
{8-pin}
{4-pin}
O - Open
Uses Connector
Plug 18-440
LOGIC Modules can contain up to four, 4-pin
LOGIC components and up to two, 8-pin
LOGIC components in the four positions (H,
J, K and L). 8-pin LOGIC components will
occupy two of the available positions.
NEXSYS
{8-pin}
LOGIC Module
H&J K&L
HJ K L
High Capacity Body
Uses Connector
Plug 18-440
High Capacity bodies with LOGIC can contain up to four,
4-pin LOGIC components; one, 8-pin LOGIC Component
or up to three, electromechanical switches in the four
positions (H, J, K and L). 8-pin LOGIC components will
occupy the middle two available positions.
H J&K L
{8-pin}
{SW}
{4-pin}
O - Open
HJ K L
VIVISUN
VIVISUN
High Capacity Body with
Standard Square Cap
High Capacity Body with
Large Rectangular Cap
Compact Body
Uses Connector
Plug 18-442
Compact bodies with LOGIC can contain
two, 4-pin LOGIC components; one,
4-pin LOGIC component and one
electromechanical switch in each
position (A and B).
{SW}
{4-pin}
O - Open
A
B
VIVISUN
VIVISUN
Compact Body with
Standard Square Cap
Compact Body with
Large Rectangular Cap
Part Configuration
Our online Part Configurator allows customers to easily and accurately
specify all aspects of a new part and generate complete, ready-to-order part
numbers. The Part Configurator is available anytime and will allow you to:
• Configure LOGIC Modules, including LOGIC component
configurations and LOGIC Module mounting options.
www.appliedavionics.com/configurator
• Configure LED and Incandescent Switches and Indicators, including
the configuration of LOGIC components and electromechanical
switch poles. Additionally, you will be able to specify full details of the
illuminated cap including size, legend, color, display type, voltage,
dimming controls and enclosure options.
LCT-3
Q U A L I F I C AT I O N L E V E L S
LO G I C C O M P O N E N T S
Typical Qualification Level Summary *
Test Description
Specification
Section
Category
Reference Levels
Altitude
RTCA/DO-160
MIL-STD-202
MIL-STD-810
4
105C
500
F2 & A2
B
Procedure II
-15,000 feet, +55,000 feet
(some units +70,000 feet)
Temperature
RTCA/DO-160
MIL-STD-810
4
501/502
F2
Procedure III
-55°C and +85°C
(Illuminated Indicator rated at +71°C)
Temperature Variation
RTCA/DO-160
MIL-STD-202
MIL-STD-810
5
107
503
S2
A
1
5 cycles -55°C /+85°C
High Temperature Survival
(Non-operating)
MIL-STD-202
108A
A
+85°C, 96 hours (Switch Module)
+125°C, 96 hours (Electronic Unit only)
Liquid Thermal Shock
MIL-STD-202
107
BB
15 cycles -65°C, +125°C
(Electronic Unit Only)
Humidity
RTCA/DO-160
MIL-STD-202
6
106
B
N/A
240 hours, +65°C, > 90% RH
Operational Shock and Crash Safety
RTCA/DO-160
MIL-STD-202
MIL-STD-810
7
213
516
B
B
Procedure IV
20 G Sawtooth,
75 G Half-Sine
75 G Half-Sine
Acceleration
RTCA/DO-160
MIL-STD-202
MIL-STD-810
7
212
513
B
A
Procedure III
20 G, 3 axis
Vibration
RTCA/DO-160
MIL-STD-202
8
204
R,U
B
10-2000 Hz, 10 G
10-2000 Hz, 15 G
Explosive Atmosphere
RTCA/DO-160
MIL-STD-202
9
109C
E
B
Waterproofness Seal
RTCA/DO-160
MIL-PRF-22885
10
4.7.20
R
Splashproof
15 gal/min
(sealed switches)
Sand and Dust
RTCA/DO-160
MIL-STD-202
12
110
D
N/A
Silica media
Fungus Resistance
RTCA/DO-160
MIL-PRF-22885
13
3.5.2
F
N/A
Compliance by material selection
Salt Fog
RTCA/DO-160
MIL-STD-202
14
101
T
A
96 hour tests
Magnetic Effect
RTCA/DO-160
15
Z
1° deflection, < 0.3 m
Power Input Aircraft Power
RTCA/DO-160
MIL-STD-704
16
N/A
A or B
N/A
EL1, EL2, VSD1: 50ms dropout
PT1, DL1, DL2, DL3, DL4: 200ms dropout
Spike
RTCA/DO-160
MIL-STD-461
17
CS106
A
Spike 1
Power, 600 V, 10 us, 50 ohm
400 V, 5 us, 5 ohm
Audio Frequency
Conducted Susceptibility
RTCA/DO-160
MIL-STD-461
18
CS101
Z
Curve 1
Power Input, 4 V P-P, 1-150 KHz
Induced Signal Susceptibility
RTCA/DO-160
19
CW
20A RMS, 350-800 Hz
5400 V/m, 120 A/m
RF Conducted Susceptibility**
RTCA/DO-160
MIL-STD-461
20
CS114
Y
Curve 5
300 mA, 10 kHz-400 MHz
DO-160 Frequency Set
RF Radiated Susceptibility**
RTCA/DO-160
MIL-STD-461
20
RS103
Y
200 V/m
200 V/m, 2 MHz-18 GHz
DO-160 Frequency Set
RF Emissions
RTCA/DO-160
MIL-STD-461
21
CE102
P
Damped Sinusoidal Transient**
RTCA/DO-160
MIL-STD-461
22
CS116
B3K33
N/A
Waveform 3, 600 V, 1 MHz, 10 MHz
0.01 - 100 MHz, 1 - 10 A
Lightning Induced Transient**
RTCA/DO-160
MIL-STD-461
22
CS115
B3K33
N/A
Waveform 5A, 750 V, 120 us
30 ns, 5 amp
Dielectric Withstanding
MIL-STD-202
301
N/A
1000 VAC - Connections to case
Electrostatic Discharge
RTCA/DO-160
25
N/A
15,000 V, 150 pf, 330 ohms
* Actual qualification levels vary by component. See specific component data sheet for actual qualifications.
** Stated EMC performance based on tests performed on an individually monitored component using unshielded cables as defined by the applicable EMC test document. The EMC performance of an installed system using LOGIC components can be dependent on the actual installation environment and interconnection method.
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International Sales Offices
Applied Avionics, Inc. Telephone: 1-817-451-1141
Fax: 1-817-654-3405
3201 Sandy Lane
Toll-Free:1-888-848-4786
Fort Worth, TX 76112
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© 2015 APPLIED AVIONICS, INC. DS-LCT-15 REV 1.0