Flash Technology VANGUARD FTS 370d User manual

Flash Technology, 332 Nichol Mill Lane, Franklin, TN 37067
www.spx.com/en/flash-technology
[phone]
VANGUARD®
FTS 370d, 370w, 370r
LED Medium Intensity Obstruction Lighting System
Reference Manual
Part Number F7913702
SERIAL NUMBER

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Quick Start Guide FTS 370d/w/r
Warranty activation is required after installation. Call 1-800-821-5825 24/7/365 to activate roduct warranty.
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ITEMS INCLUDED IN THIS SYSTEM
RECOMMENDED ITEMS FOR INSTALLATION
GENERAL INSTALLATION NOTES
System Controller (SC) 370 Flashhead
 •
 
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  
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
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
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
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
 •
 
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 
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 
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
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  
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
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
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   
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 
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
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
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
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
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   
• ATTENTION: System contains circuit boards that are stac sensive. Handling precauons re uired. •
  
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 
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 
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
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
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
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   
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 
• AFTER COMPLETING INSTALLATION, CALL 1-800-821-5825 TO ACTIVATE WARRANTY.* • Before calling, have system serial numbers available for the NOC. IMPORTANT! AFTER COMPLETING HARDWARE INSTALLATION, THE “BINDING” PROCEDURE MUST BE PERFOMED FOR EACH SC 370 INSTALLED. SEE “LOCAL TOWER CONFIG” LOCATED IN SECTION 3 OF THE MANUAL (PN F7913702) FOR DETAILS AND PRODCEDURE.   
 

IMPORTANT! DO NOT INSTALL OR REMOVE WIRES FROM TERMINAL BLOCKS OR PCB’S UNTIL DC VOLTAGE INDICA- TORS ON THE POWER SUPPLIES HAVE BEEN EXTINGUISHED. THIS APPLIES ESPECIALLY TO CONNECTIONS AT PCB1 P1 AND PCB2 P5. IF IT IS NECESSARY TO REMOVE EITHER CONNECTION OR MAKE OTHER WIRING ADJUSTMENTS, POWER THE SYSTEM DOWN AND WAIT 5 MINUTES BEFORE PROCEEDING. •

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
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Each SC 370 must be bonded to the site lightning ground system using AWG #2 wire (minimum) and tested to insure the total resistance is less than 25 ohms or less.
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 
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
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
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

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

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
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
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Ground the flashhead to tower steel using the provided ground lug and AWG #8 (minimum) wire.
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 
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
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


ATTENTION: THE QUICK START GUIDE IS SUPPLIED AS AN AID TO INSTALLING THE FTS 370D/W/R SYSTEM. PLEASE REFER TO THE PRODUCT MANUAL (PN 7913702) FOR ADDITIONAL INFORMATION REGARDING INSTALLATION AND SERVICE OF THIS EQUIPEMT.



Quick Start Guide FTS 370d/w/r
Warranty activation is required after installation. Call 1-800-821-5825 24/7/365 to activate roduct warranty.
Flashhead Cable
Marker Kit (SC 370d Only)

  
Monitoring & Alarming
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
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
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
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
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
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
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 
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
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IMPORTANT: The Marker Interface Enclosure should be mounted at the marker er.
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Refer to the Marker Kit Installaon Diagram (Drawing # 7790104), provided with the marker kit, for complete installaon instrucons and a list of provided materials.
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
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 
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
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 
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

        
    Refer to instrucons provided with the marker kit for detailed installaon informaon.
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  
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FTS 370d/w/r Revision 10 – 1/09/2015 a
FTS 370d/w/r INSTALLATION CHECKLIST
System Controller (SC) 370
The SC 370 is mounted away from radio frequency interference (RFI).
The SC 370 is mounted upright.
Lightning protection is grounded to the site grounding system.
2 AWG (min.) is used from the SC 370 grounding lug to the site lightning grounding system (tested for 1ohm or less).
The bend radius for all ground wires is greater than 8" (avoid bending ground wires if possible).
Important! It is recommended that all exposed ground connections are coated with a corrosion inhibitor (NO-OX or
equivalent).
There are no holes punched or drilled in the top or sides of the enclosure.
Airflow can properly circulate around the enclosure (allow 8” min. of unused space on both sides).
Room allowed for door access (multi-unit installations).
The input power (and frequency for AC systems) matches the voltage specified on the unit’s data label.
The SC 370 designated as System 1is connected to the top flashhead and programmed as AOL.
The flashhead cable is connected to TB2, and corresponds to the internal wiring diagram.
Electrical connections, and inside cabinet hardware mounts have been double-checked for tightness before powering up.
All wire connections are installed properly into the terminal blocks (TB1 and TB2).
ALL PCB connectors are securely plugged into the board (Phoenix Connectors).
All PCB connector wires are properly inserted and screws are tightened.
RS 485 Data cables are installed on PCB1 J4 and routed between System Controllers (multi-unit installations).
Fuse holders for fuses F1 & F2 are secured in the closed position.
The “Binding Procedure” has been performed on each SC 370 installed in the system.
(See Section 3 “Local Tower Config” for special instructions regarding the binding procedure.)
PCB1 Intensity select switch is in the “Auto” position on the System Controller (s).
Flashhead CABLE
Flashhead cable is NOT spliced except at the marker interface enclosure, if installed.
Flashhead individual conductor insulation has not been nicked.
A service loop for the flashhead cable is placed at the base of the tower near the System Controller (5 feet).
Service loop is attached to the H-Frame or Wall vertically.
The flashhead cable is properly secured to the tower so the insulation won’t become cut or damaged with wind and time.
Using the Flash Technology’s two supplied tapes and the 2-3-4 layer method, secure the cable to the tower (Not
exceeding 5’ in-between)
A service loop is placed just below the beacon.
Service loop is secured at (2) points to the tower structure using the 2-3-4 tape method.
The flashhead cable is not pulled tight against sharp edges.
1-3” of space should be between the cable and tower leg flanges or obstructions.

b Revision 10 – 1/09/2015 FTS 370d/w/r
Flashhead
The LED beacon is wired correctly.
The wires are positioned so no arcing can occur and wire colors match the terminal designations, and flashhead cable
is secured in the terminal block.
The dome nut of the beacon’s cable strain relief is tightened for cable support and to prevent moisture intrusion.
Drip loop is present for the LED beacon.
The LED beacon is securely closed with both latches in place.
The LED beacon at the top of the tower has a lightning rod(s) provided at least 36” above the top of the beacon, and a
minimum of 18” away from the beacon.
The LED beacon is level (Use separate leveling tool).
8 AWG (min.) insulated ground wire is used from the LED beacon grounding lug to the tower structure.
The LED beacon is mounted in an FAA approved location (No obstructions; allowing a 360° view of the beacon).
Marker Interface Junction Box (SC 370d only)
The Marker Interface Enclosure is mounted at the marker tier level.
Flash Technology provided hardware used for mounting the Marker Interface Enclosure (4 points of contact to Universal
Mounting brackets).
Both latches are secured to prevent water intrusion.
Marker Interface Enclosure is grounded to the tower.
8 AWG (min.) insulated ground wire is used from the Marker Interface Enclosure grounding lug to the tower structure.
Side marker cable connections match all PCB labels (Connections are polarity sensitive, correct wiring is critical).
Service loop for the flashhead cable to the ground is present near the base of the Marker Interface Enclosure.
Service loop for the flashhead cable to the flashhead is present near the base of the Marker Interface Enclosure.
MARKERS (Steady-burning Red LED sidelights, side-markers, or obstruction lights L-810)
Only Flash Technology provided 24 Volt DC Marker Fixtures are installed.
The dome nuts of the cable strain reliefs are tightened for cable support and to prevent moisture intrusion.
Drip loop is present at the marker fixtures.
PHOTODIODE (PHD 512)
The PHD 512 is connected to PCB2 (Surge Board) P-6 (White and Black wires correspond to the label on board).
The PHD 512 is mounted vertically to prevent water entry.
The PHD 512 cable is protected through conduit so it will not be stepped on or damaged.
The PHD 512 is facing north and no artificial lights (security lights, street lights, lighted signs, or direct sunlight) will affect
its operation.
ALARMS and ALARM WIRING
NO alarm LEDs are lit on PCB1 of the SC 370.
The display located on PCB1 of the SC 370 is showing “Status OK” along with the correct configuration of the system type
installed (Dual or White with the correct number of beacons, and markers if applicable).
A Lighting Inspection has been performed via the User Interface Panel.
Call 1-800-821-5825 if additional TECHNICAL or INSTALLATION assistance is needed.

FTS 370d/w/r Revision 10 – 1/09/2015 i
Front Matter
Abstract
This manual contains information and instructions for installing, operating and maintaining
the FTS 370d, 370w and 370r LED Medium Intensity Obstruction Lighting Systems with the
following input voltages: 120-240V AC, 24V DC and 48V DC. All model variants support
optional IR (infrared) output.
Copyright
Copyright © 2015, Flash Technology, Franklin, TN, 37067, U.S.A.
All rights reserved. Reproduction or use of any portion of this manual is prohibited without
express written permission from Flash Technology and/or its licenser.
Trademark Acknowledgements
Flash Technology and Vanguard are registered trademarks of SPX Corporation.
All other trademarks and product names mentioned are properties of their respective
companies, and are recognized and acknowledged as such by Flash Technology.
Applicable Specifications
This equipment meets or exceeds requirements for the following FAA Types: L-864/865, L-
865, L-866/885, L-866 and L-885.
Disclaimer
While every effort has been made to ensure that the information in this manual is complete,
accurate and up-to-date, Flash Technology assumes no liability for damages resulting from
any errors or omissions in this manual, or from the use of the information contained herein.
Flash Technology reserves the right to revise this manual without obligation to notify any
person or organization of the revision.
In no event will Flash Technology be liable for direct, indirect, special, incidental, or
consequential damages arising out of the use of or the inability to use this manual.
Warranty
With proper installation and with normal operating conditions, Flash Technology warrants all
components of the LED lighting system for 5 years from the date of shipment from Flash
Technology.
Parts Replacement
The use of parts or components, in this equipment, not manufactured or supplied by Flash
Technology voids the warranty and invalidates the third party testing laboratory certification
which ensures compliance with FAA Advisory Circulars 150/5345-43G, 150/5345-53D, and
Engineering Brief No. 67D. The certification is valid as long as the system is maintained in
accordance with FAA guidelines (FR doc. 04-13718 filed 6-16-04).

ii Revision 10 – 1/09/2015 FTS 370d/w/r
Personnel Hazard Warning
Dangerous Voltages
Dangerous line voltages reside in certain locations in this equipment. Also, this equipment
may generate dangerous voltages. Although Flash Technology has incorporated every
practical safety precaution, exercise extreme caution at all times when you expose circuits
and components, and when you operate, maintain, or service this equipment.
Avoid Touching Live Circuits
Avoid touching any component or any part of the circuitry while the equipment is operating.
Do not change components or make adjustments inside the equipment with power on.
Dangerous Voltages Can Persist with Power Disconnected
Under certain conditions, dangerous voltages can be present because capacitors can retain
charges even after the power has been disconnected.
Protect yourself — always turn off the input (primary) power and wait five minutes for
storage capacitors to drain their charge. Then check the system controller’s TB2 output
terminals with a voltmeter for any residual charge before touching any circuit element or
component.
Do Not Depend on Interlocks
Never depend on interlocks alone to remove unsafe voltages. Always check circuits with a
voltmeter. Under no circumstances remove or alter any safety interlock switch.

FTS 370d/w/r Revision 10 – 1/09/2015 iii
Table of Contents
Front Matter ........................................................................................................................................ i
Personnel Hazard Warning ................................................................................................................ ii
Table of Contents..............................................................................................................................iii
List of Figures.....................................................................................................................................v
List of Tables .................................................................................................................................... vi
Section 1 – Introduction and Operation..............................................................................................1
Introduction.....................................................................................................................................1
System Overview........................................................................................................................1
Specifications..............................................................................................................................2
SC 370.............................................................................................................................................4
Operation Overview....................................................................................................................4
PCB1 Controller Board...............................................................................................................5
FH 370d/w/r..................................................................................................................................11
Marker Interface Enclosure...........................................................................................................12
MKR 370 ......................................................................................................................................13
Section 2 – Mounting and Installation..............................................................................................14
Controller Installation...................................................................................................................14
Verify the Installation...............................................................................................................14
SC 370 Access ..........................................................................................................................14
Mounting...................................................................................................................................14
Mounting Adapter Panel...........................................................................................................14
Wiring.......................................................................................................................................15
Input Power...............................................................................................................................15
Photodiode Wiring....................................................................................................................15
Photodiode Mounting................................................................................................................15
Cellular Antenna.......................................................................................................................16
GPS Antenna.............................................................................................................................17
Communication Cable Kit ........................................................................................................19
WiFi Option Antenna Installation.............................................................................................19
Dry Contact Alarm Outputs......................................................................................................21
Marker Interface Enclosure...........................................................................................................23
Wiring Procedure......................................................................................................................23
Flashhead Installation ...................................................................................................................25
System Wiring Diagram Notes (D1 & D2)...................................................................................39
System Wiring Diagram Notes (E1 & E2) ...................................................................................41
System Wiring Diagram Notes (Catenary)...................................................................................43
Section 3 – Information Display.......................................................................................................55
Navigating the Information Display .............................................................................................55
Ctrl Type.......................................................................................................................................56
Site Tower Config.........................................................................................................................56
Local Tower Config......................................................................................................................60
Monitoring Config........................................................................................................................62
Monitoring Status..........................................................................................................................64
Local Diagnostics..........................................................................................................................64
Lighting Inspection (LI)................................................................................................................66
Mode Override..............................................................................................................................67
System Reboot..............................................................................................................................67

iv Revision 10 – 1/09/2015 FTS 370d/w/r
System X Firmware ......................................................................................................................67
USB Firmware Update..................................................................................................................68
Information Display Alarms .........................................................................................................68
Section 4– Web Interface..................................................................................................................70
Web Interface (Optional)..............................................................................................................70
System Access via WiFi ...............................................................................................................70
Lighting Inspection (LI)................................................................................................................71
Mode Override..............................................................................................................................72
Auxiliary Input..............................................................................................................................72
Event Log......................................................................................................................................73
Configuration................................................................................................................................73
Section 5 – Maintenance and Troubleshooting.................................................................................77
Safety ............................................................................................................................................77
Preventive Maintenance................................................................................................................77
Storage ..........................................................................................................................................77
RFI Problems................................................................................................................................77
Diagnostic Test .............................................................................................................................77
Component Testing.......................................................................................................................77
Troubleshooting............................................................................................................................78
Component Removal and Replacement........................................................................................81
Section 6 – Recommended Spare & Replaceable Parts....................................................................83
Customer Service..........................................................................................................................83
Ordering Parts...............................................................................................................................83
SC 370 Parts..................................................................................................................................83
FH 370 Parts .................................................................................................................................83
Marker Interface Parts...................................................................................................................83
System Parts..................................................................................................................................83
Appendix A: Vanguard (v3.1) SNMP V2c INFORM TRAPs ........................................................90
Appendix B: Vanguard Modbus Specification Map (V8)...............................................................94
Appendix C: Return Material Authorization (RMA) Policy .........................................................105

FTS 370d/w/r Revision 10 – 1/09/2015 v
List of Figures
Figure 1-1 – SC 370 (AC)......................................................................................................... 4
Figure 1-2 – PCB1 Controller Board........................................................................................ 5
Figure 1-3 – Information Display and User Interface............................................................... 6
Figure 1-4 – Alarm Interface & Mode Indicator Connections ................................................. 8
Figure 1-5 – PCB 3 with GPS................................................................................................. 10
Figure 1-6 – FH 370d/w/r....................................................................................................... 11
Figure 1-7 – Marker Interface PCB ........................................................................................ 12
Figure 1-8 – MKR 370............................................................................................................ 13
Figure 2-1 – Antenna Mounting Bracket with PHD 512, Cellular and GPS Antennas.......... 18
Figure 2-2 – Antenna Types ................................................................................................... 18
Figure 2-3 – WiFi Antenna Installation.................................................................................. 20
Figure 2-4 – SC 370 Flashhead Cable Connection................................................................. 21
Figure 2-5 – Marker Interface Wiring .................................................................................... 24
Figure 2-6 – Flashhead Leveling ............................................................................................ 25
Figure 2-7 – Flashhead Cable Terminal Block....................................................................... 26
Figure 2-8 – SC 370 Mounting and Outline ........................................................................... 27
Figure 2-9 – SC 370 Mounting and Outline (Stainless Steel Option) .................................... 28
Figure 2-10 – Adapter Mounting Panel Mounting and Outline (Optional)............................ 29
Figure 2-11 – Photodiode Mounting and Outline................................................................... 30
Figure 2-12 – Flashhead Dimensions and Mounting Outline................................................. 31
Figure 2-13 – MKR 370 Mounting and Outline..................................................................... 32
Figure 2-14 – Marker Interface Mounting and Outline.......................................................... 33
Figure 2-15 – Marker Interface Mounting and Outline (Stainless Steel Option) ................... 34
Figure 2-16 – Typical E1/D1 Component Locations.............................................................. 35
Figure 2-17 – Typical E2/D2 Component Locations.............................................................. 36
Figure 2-18 – Typical Catenary Component Locations.......................................................... 37
Figure 2-19 – Typical D1 & D2 System Wiring Diagram...................................................... 38
Figure 2-20 – Typical E1 & E2 System Wiring Diagram ...................................................... 40
Figure 2-21 – Typical Catenary System Wiring Diagram...................................................... 42
Figure 2-22 – SC 370 (AC) Internal Wiring (Standard System)............................................ 44
Figure 2-23 – SC 370 (AC) Internal Wiring (with Smart Board Option)............................... 45
Figure 2-24 – SC 370 (AC) Internal Wiring (with Modem Option)....................................... 46
Figure 2-25 – SC 370 (AC) Internal Wiring (with Modem & WiFi Options)........................ 47
Figure 2-26 – SC 370 (AC) Internal Wiring (with WiFi Option)........................................... 48
Figure 2-27 – SC 370 (DC) Internal Wiring (Standard System)............................................ 49
Figure 2-28 – SC 370 (DC) Internal Wiring (with Smart Board Option)............................... 50
Figure 2-29 – SC 370 (DC) Internal Wiring (with Modem Option)....................................... 51
Figure 2-30 – SC 370 (DC) Internal Wiring (with Modem & WiFi Options)........................ 52
Figure 2-31 – SC 370 (DC) Internal Wiring (with WiFi Option)........................................... 53
Figure 2-32 – Marker Interface Enclosure Wiring Diagram .................................................. 54
Figure 3-1 – Information Display........................................................................................... 55
Figure 6-1 – SC 370 (AC) Component Locations.................................................................. 84
Figure 6-2 – SC 370 (DC) Component Locations.................................................................. 86

vi Revision 10 – 1/09/2015 FTS 370d/w/r
List of Tables
Table 1-1 – Physical Specifications....................................................................................................2
Table 1-2 – Performance Specifications.............................................................................................3
Table 1-3 – Status & Alarm LEDs......................................................................................................7
Table 1-4 – Alarm Interface & Mode Indicator Connections.............................................................8
Table 3-1 – Controller Display Buttons............................................................................................55
Table 3-2 – Top Level Menu Options...............................................................................................55
Table 3-3 – Information Display Status and Alarm Definitions.......................................................68
Table 3-3 – Information Display Status and Alarm Definitions (continued) ...................................69
Table 5-1 – Troubleshooting – Initial Inspection .............................................................................78
Table 5-2 – Troubleshooting – System Voltage...............................................................................78
Table 5-3 – Troubleshooting - Flashhead.........................................................................................79
Table 5-4 – Troubleshooting – L810 Side Markers (SC 370 Information Display).........................79
Table 5-5 – Troubleshooting – Marker Interface Box......................................................................80
Table 5-6 – Troubleshooting – GPS Synchronization......................................................................80
Table 6-1 – SC 370 (AC) Replacement Parts...................................................................................85
Table 6-2 – SC 370 (DC) Replacement Parts...................................................................................87
Table 6-3 – FH 370 Replacement Parts............................................................................................88
Table 6-4 – Marker Interface............................................................................................................88
Table 6-5 – System Replacement Parts ............................................................................................89
Table A-1 – Critical INFORMs........................................................................................................91
Table A-2 – Warning INFORMs......................................................................................................92
Table A-3 – Informational INFORMs..............................................................................................93

FTS 370d/w/r Revision 10 – 1/09/2015 1
Section 1 – Introduction and Operation
Introduction
FTS 370d and FTS 370w are LED
Medium Intensity Obstruction Lighting
Systems. FTS 370d series are Dual
Lighting Systems (red/white) for L-
864/865 applications. FTS 370w series
are White Lighting Systems for L-865
applications.
FTS 370 series lighting systems may also
be configured for Catenary operation.
Catenary lighting systems require three
levels (tiers) of lights. One tier is installed
at each of the following three locations:
top of the structure, lowest point of the
catenary and half way between the upper
and lower levels. Each level must be lit to
provide 360-degree coverage. The flash
rate is 60 flashes per minute in all modes
and the flash sequence is as follows:
middle – top – bottom.
FTS 370d Catenary series are Dual
Lighting Systems for L-866/885
applications. FTS 370w Catenary series
are White Lighting Systems for L-866
applications. FTS 370r series are Red
Lighting Systems for L-885 Catenary
applications only.
System Overview
The FTS 370d, FTS 370w and FTS 370r
LED Lighting Systems have been
designed for long life, reducing the need
for service. Ease of installation and
service is enhanced by simple wiring,
setup, and diagnostics. Increased safety is
provided with operating voltages of less
than 60VDC.
Each Lighting System consists of one or
more SC 370d, SC 370w or SC 370r, here
after referred to as SC 370, power and
control unit(s) and its associated
flashhead. Each flashhead requires its
own SC 370. A maximum of six (6) SC
370s and associated flashheads may be
connected to form one lighting system.
Optional GPS synchronization is available
if additional SC 370s are required.
The light source for the flashhead is
comprised of LEDs (Light Emitting
Diodes). The LED control circuitry and
drivers are located in the flashhead.
Power Line Communication is utilized as
the communication link between the SC
370 and the flashhead; simplifying
installation and minimizing the number of
conductors required. Installation of FTS
370d systems (L-864/865) requiring L-810
markers is simplified by requiring only
one cable run for both markers and
flashhead. The flashhead may be located
up to 600’ (cable length) from the
controller.
Any SC 370 in the lighting system may be
configured as the control unit which is
referred to as System 1. This unit provides
overall system control including mode
control, synchronization, and alarm
collection and notification. Robust and
highly reliable communication between
multiple SC 370 units is provided by RS-
485.
SC 370 systems may be ordered
configured for operation by AC or DC
input power. AC systems are not sensitive
to input power phase and have an
operational voltage range of 120-240
VAC, 50/60 Hz with no modification
necessary to the input power module. DC
powered systems are available configured
for 24 or 48 VDC. The DC input voltage
must be specified when ordering.
This manual provides guidance and
recommendations for the installation,
operation, and troubleshooting of the
lighting system. Please read this document
in its entirety before installation.

2 Revision 10 – 1/09/2015 FTS 370d/w/r
Specifications
Table 1-1 – Physical Specifications
Equipment Model Physical Specifications
SC 370 System Controller (Standard):
Dimensions H x W x D (millimeters)
Weight (kilograms) 23.82 x 17.25 x 8.51 in (605 x 438.3 x 216.2) 39 lb (18.1)
SC 370 System Controller
(Stainless Option):
Dimensions H x W x D (millimeters)
Weight (kilograms) 23.00 x 17.13 x 6.44 in (584.2 x 435.1 x 163.6) 40 lb (18.1)
Marker Interface (Standard):
Dimensions H x W x D (millimeters)
Weight (kilograms) 16.1 x 10.5 x 4.91 in (408.9 x 266.7 x 124.8) 10.1 lb (4.6)
Marker Interface (Stainless Option):
Dimensions H x W x D (millimeters)
Weight (kilograms) 13.75 x 11.05 x 4.36 in (349.3 x 280.7 x 110.7) 11.7 lb (5.3)
FH 370 Flashhead:
Dimensions H x D (millimeters)
Weight (kilograms)
Aerodynamic Wind Area (cm2)
7.5 x 15.75 in (190.5 x 400)
26.3 lb (11.9)
99.13 in2(639.5)
MKR 370:
Dimensions H x D (millimeters)
Weight (kilograms) 8 x 2 in (203.2 x 50.8) 1 lb (0.45)
PHD 512 Photodiode:
Dimensions H x W x D (millimeters) 3.06 x 2.58 x 1.02 in (77.7 x 65.5 x 25.9)

FTS 370d/w/r Revision 10 – 1/09/2015 3
Table 1-2 – Performance Specifications
Parameter FAA Lighting Type
L-864 and L-865 L-866 and L-885
Flash Intensity (nominal):
Day (White) 20,000 ± 25% ECD 20,000 ± 25% ECD
Night (Red) 2,000 ± 25% ECD 2,000 ± 25% ECD
Night (White), White Backup 2,000 ± 25% ECD 2,000 ± 25% ECD
Flash Rate:
Day (White) 40 flashes per min. 60 flashes per min.
Night (Red) 20/30/40 flashes per min. 60 flashes per min.
Night (White), White backup 40 flashes per min. 60 flashes per min.
Primary Power 120V - 240V AC, 50/60 Hz (3A - 1.5A Peak) +/- 24 V DC (16.8 – 31.2 V) (16A Peak)
+/- 48 V DC (33.6 – 62.4 V) (8A Peak)
Power Consumption (±5%):
Day (White)
Night (Red)
Night (White) / White Backup
FTS 370 / FTS 370 IR
80 W 70 W
40 W 40 W
40 W 40 W
FTS 370 / FTS 370 IR
110 W 100 W
50 W 50 W
50 W 50 W
Environmental
Complies with FAA specifications in AC 150/5345-43G
for continuous operation which includes the following:
Temperature:
Storage/shipping: -67° to 130° Fahrenheit (F)
-55° to 55° Celsius (C)
Operating: -40° to 130° F
-40° to 55° C
Humidity: 95 percent relative humidity.
Flashhead cable length 6 - 600 ft.

4 Revision 10 – 1/09/2015 FTS 370d/w/r
SC 370
Operation Overview
An internal view of the SC 370 is shown
in Figure 1-1. Component layout
diagrams with part names and numbers are
shown in Figures 6-1 (AC) and 6-2 (DC).
Internal wiring diagrams are shown in
Figures 2-22 – 2-26 (AC) and 2-27 – 2-31
(DC).
Input power is connected to terminal block
TB1. Mounted on TB1 is a Metal Oxide
Varistor (VR1) which reduces line surges
and transients. Input power fuses F1 and
F2 are also mounted on TB1. Disconnect
power from the SC 370 before servicing
the fuses or MOV. Fuse holders are
hinged on the lower side. Pull down and
open the side cover to access the fuse.
Power supplies located in each SC 370
unit convert input power to the correct DC
operating voltages for the system.
The control PCB (PCB1) supervises
system operation. A User Interface with
alphanumeric display and pushbuttons
provides system configuration and alarm
notification.
Note: Shown with Modem, WiFi and GPS options. Printed Circuit Board colors may vary.
Figure 1-1 – SC 370 (AC)

FTS 370d/w/r Revision 10 – 1/09/2015 5
OLED
Display Control
Interface
Manual
Override
Alarm
Interface
& Mode
Indicator
Connections
Auxiliary
Input
& PCB Input
Power
PCB1 Controller Board
PCB1 controls and monitors operation of
the SC 370 and its associated flashhead.
Each section of PCB1, outlined in the
photo below, is discussed in the following
subheadings.
Figure 1-2 – PCB1 Controller Board
Important! Do not install or remove
wires from terminal blocks or PCB’s
until DC voltage indicators on the
power supplies have been
extinguished. This applies especially to
connections at PCB1 P1 and PCB2 P5.
If it is necessary to remove either
connection or make other wiring
adjustments, power the system down
and wait 5 minutes before proceeding.
Status &
Alarm LEDs
PCB 3
(Optional)
J4 RS 485
Communication
Cable Connection
P1 Photodiode
& PLC Input
(See Important
Note Below)
PCB1 P1 PCB2 P5

6 Revision 10 – 1/09/2015 FTS 370d/w/r
N
ote:
Manual override can only be activated by the unit programmed as System 1. The
Manual Mode switch is disabled in subordinate units.
PCB1 Information Display and User Interface
A multi-line OLED (Organic Light-
Emitting Diode) display provides system
status, alarm and programming
information. Three pushbuttons located to
the immediate right of the display provide
the user interface for the system. The top
and bottom buttons move the cursor
position (*) up and down on the display.
The center button selects the action at the
cursor position. The information display
defaults to show the current system status
as well as the basic configuration for the
unit. See Section 3 for a detailed
description for all menu functions of the
information display. See Table 3-3 for a
complete list of alarms provided by the
information display.
Figure 1-3 – Information Display and User Interface
Manual Override
The Manual Mode
switch provides
temporary control of the
system’s operating
mode. When the manual
mode switch of the unit
programmed as System 1
is moved to either MAN DAY or MAN
NIGHT, the display reads “M-DAY” or
“M-NIGHT” respectively and the
corresponding Mode LED blinks. Manual
mode expires 30 minutes after initiating
the mode override. Each change to the
manual mode switch restarts the 30 minute
timer. The Manual Mode switch must be
moved after power up to activate mode
override. The switch has no effect if it is
set to Day or Night before power up.
Status and Alarm LEDs
Twelve Status and Alarm LEDs are
provided for immediate visual reference of
the current status of the unit. Table 1-3
describes the function of each LED.

FTS 370d/w/r Revision 10 – 1/09/2015 7
Table 1-3 – Status & Alarm LEDs
Note: See Table 3-3 for a complete list of alarms provided by the information display.
LED
Indication
DAY ALARM
Red to indicate one or more of the following conditions:
1. The connected beacon is experiencing a failure in Day mode.
2. The beacon is not communicating with the SC 370. The Day Alarm will
be accompanied by the Night Alarm and the Comm. Alarm in this instance.
NIGHT ALARM
Red to indicate one or more of the following conditions:
1. The connected beacon is experiencing a failure in Night mode.
2. The beacon is not communicating with the SC 370. The Night Alarm
will be accompanied by the Day Alarm and the Comm. Alarm in this
instance.
3. Beacon IR failure. Activation of Night Alarm due to IR failure requires
that “IR Enable” and “IR Alarm Is Night Alarm” are set to “Yes”. See
Section 3 “Site Tower Config.” for additional information.
MARKER ALARM
Red to indicate one or more of the following conditions:
1. One or more L-810 markers have failed.(FTS 370d L-864/865 only)
2. The marker interface board is not communicating with the SC 370.
The Marker Alarm will be accompanied by the Comm. Alarm in this
instance.
PHOTODIODE Red when more than 19 hours have passed since the system has
changed modes via the photodiode input.
COMM ALARM
Red to indicate a communications failure in one or more of the following
conditions:
1. One or more connected units (Systems 2 – 6) are not communicating
with System 1.
2. The connected beacon is not communicating with the SC 370. The
Comm. Alarm will be accompanied by the Day Alarm and Night Alarm.
3. The connected marker tier is not communicating with the SC 370. The
Comm. Alarm will be accompanied by the Marker Alarm.
GPS SYNC More than one hour has passed since the unit received a GPS Sync.
pulse.
DAY MODE Green continuous when unit is in DAY mode, blinking when the unit is in
manual DAY mode.
RED NIGHT Green continuous when unit is in RED NIGHT mode, blinking when the
unit is in manual RED NIGHT mode.
WHITE NIGHT Green continuous when unit is in WHITE NIGHT mode, blinking when the
unit is in manual WHITE NIGHT mode.
485 TX Red blinking when the unit is sending data to other units in the system.
485 RX Red blinking when the unit is receiving data from other units in the system.
FLASH Active only if GPS is enabled. Blinks approximately once per minute when
SAT lock is achieved.

8 Revision 10 – 1/09/2015 FTS 370d/w/r
Alarm Interface & Mode Indicator Connections
Dry contact alarm connections, located on
PCB 1, are available regardless of any
additional monitoring method used. The
available dry contact alarm outputs are
listed in Table 1-4 and shown in Figure
1-4. Each contact may be wired as
normally open or normally closed. The
contacts are labeled to indicate their state
with the system powered on without an
alarm present.
Mode indicator contacts are available on
P4 terminals 10 – 12. When powered on,
an open contact between COM and NO
indicates the system is operating in Night
mode and a closed contact indicates the
system is operating in Day mode. An
open contact between COM and NC
indicates the system is operating in Day
mode and a closed contact indicates the
system is operating in Night mode. The
mode indicator contacts do not
differentiate between manual and
automatic operation as determined by the
Manual Mode Switch.
Figure 1-4 – Alarm Interface & Mode Indicator Connections
Table 1-4 – Alarm Interface & Mode Indicator Connections
Connector Alarm Terminal Function
P3 Day
Alarm
COM (1)
NO (2)
NC (3)
Common
Closes to indicate an alarm in day mode.
Opens to indicate an alarm in day mode.
P3 Night
Alarm
COM (4)
NO (5)
NC (6)
Common
Closes to indicate an alarm in night mode.
Opens to indicate an alarm in night mode.
P3 Marker
Alarm
COM (7)
NO (8)
NC (9)
Common
Closes to indicate a marker alarm.
Opens to indicate a marker alarm.
P4 Photo- Diode
Alarm
COM (1)
NO (2)
NC (3)
Common
Closes to indicate a photodiode alarm.
Opens to indicate a photodiode alarm.
P4 GPS Sync.
Alarm
COM (4)
NO (5)
NC (6)
Common
Closes to indicate a Sync Alarm.
Opens to indicate a Sync Alarm.
P4 Comm.
Alarm
COM (7)
NO (8)
NC (9)
Common
Closes to indicate a Comm. failure.
Opens to indicate a Comm. failure.
P4 Mode COM (10) NO (11)
NC (12)
Common
Open indicates Night mode. Closed indicates Day mode.
Open indicates Day mode. Closed indicates Night mode.
P3
P4