OCEM LSDS Instruction manual

Document UT-MT-0728 Page 1 of 14
Via della Solidarietà n°2 1
40056 Valsamoggia Loc. Crespellano
BOLOGNA ITALY
Edition 13 11 2018 Suspended edition 09 09 2013
a division of Energy Technology srl
Via della Solidarietà 2/1, 40056 Valsamoggia Bologna) - Italy
THIS COPY IS NOT SIGNED SINCE IT IS FILED AND DELIVERED BY MEANS OF THE AUTOMATIC KNOWLEDGE MANAGEMENT SYSTEM (IT CAN BE SIGNED ON REQUEST). THIS DOCUMENT AND THE DATA CONTAINED HERE IN, IS
PROPRIETARY PROPERTY AND SHALL NOT BE DUPLICATED, USED OR DISCLOSED – IN WHOLE OR IN PART – FOR ANY PURPOSE WITHOUT WRITTEN CONSENT OF OCEM.
LED STANAG LUMINOUS DISTANCE SIGNS
LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION
AND MAINTENANCE
Compiled by: Nicola Marabini Approved by: Piero Scaramagli
N° Attachments: Copy n°:

Document UT-MT-0728 Page 2 of 14
Edition 13 11 2018
LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
EDITIONS
Date
09 09 2013 First Issue
REVISIONS
Index Date Description Edited b Approved b
01 13 11 2018 Spare parts update.
Address update.
EBER MMAZ

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
INDEX
1GENERAL ......................................................................................................................... 4
2CLASSIFICATION OF SIGNS ............................................................................................... 4
2.1 Types ............................................................................................................................... 4
2.2 Legend Sizes ................................................................................................................... 4
2.3 Part Number Identification ............................................................................................ 5
3MAIN FEATURES ............................................................................................................. 5
3.1 Environmental Data ........................................................................................................ 5
3.2 Electrical Data ................................................................................................................. 5
3.3 Luminance Data .............................................................................................................. 6
3.4 Description of the Signs .................................................................................................. 6
3.4.1 Main Structure ...................................................................................................... 6
3.4.2 Panel for Faces ...................................................................................................... 7
3.4.3 LEDs Luminous Source .......................................................................................... 7
3.4.4 Electronic Board .................................................................................................... 8
4INSTALLATION .............................................................................................................. 10
5MAINTENANCE ............................................................................................................. 13
5.1 Periodical Checks .......................................................................................................... 13
5.2 LEDs Luminous Source Replacement ........................................................................... 13
5.3 Electronic Equipment Replacement ............................................................................. 13
5.4 Troubleshooting ........................................................................................................... 14
6LIST OF RECOMMENDED SPARE PARTS .......................................................................... 14
INDEX OF FIGURES
Figure 1 – Overall dimensions ........................................................................................................... 7
Figure 2 – Wiring diagram ................................................................................................................. 9
Figure 3 – Flange installation with anchor bolts ............................................................................. 11
Figure 4 – Concrete foundation ...................................................................................................... 12
INDEX OF TABLES
Table 1 – Type of signs ...................................................................................................................... 4
Table 2 – Characters .......................................................................................................................... 4
Table 3 – Environmental Data ........................................................................................................... 5
Table 4 – Electrical data .................................................................................................................... 5
Table 5 – CCR Total Load ................................................................................................................... 6
TabLe 6 – Luminance Data ................................................................................................................ 6

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Edition 13 11 2018
LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
1GENERAL
The internally illuminated LSDS signs are designed to provide to the pilot the following different
indications by day and by night:
a) the runway distance remaining from the runway end in thousand of feet;
b) the position of the pendant cables for arrester hook engagement;
c) the position where the pendant cables must be used to stop in case of failed take-off.
Colours may be White or Yellow on Black back ground; signs are available as single or double
faced.
The signs described in this manual are manufactured to be used on airport series circuits,
through isolating transformers, powered by 5-step (2.8A - 6.6A), 3-step (4.8A-6.6A), 1-step (6.6A)
Constant Current Regulators.
Consult STANAG Specs 3316 and or national military rules for sign features and use.
2CLASSIFICATION OF SIGNS
The signs described in this manual are designed and manufactured in accordance with the
requirements of STANAG 3316, the design being in compliance with FAA AC 150 5345-44 Specs
too.
2.1 T pes
Runwa Distance signs White number on black background
Arrester Cable signs Yellow disk on black background
Arrester Cable Use signs (for failed take-off) White “X” on black background
Table 1 – T pe of signs
2.2 Legend Sizes
Height of numbers: 1000 mm
Width of the numbers: 600 mm max (number "4") - 200 mm min (number "1")
Diameter of the disk: 1000 mm
Height of "X": 1000 mm
Width of "X": 1000 mm
Table 2 – Characters

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
2.3 Part Number Identification
LSDSD1 – 1 – 02 - 70
Basic P/N:
Use Code:
D = Runway Distance Sign
B = Arrester Cable Sign
X = Use of Arrester Cable in
Case of Failed Take-Off
Number of Faces:
1 = Single Face
2 = Double Face
Number of Modules:
Alwa s installed:
02 = Tether (2)
70 = Bird Spikes
3MAIN FEATURES
3.1 Environmental Data
Temperature From -40°C to +55°C
Weather All outdoor conditions, exposure to: driving rains, snow and icing, salt-
laden atmospheres, relative humidity from 5 % to 95 %.
Wind Speed 322 km h ICAO Aerodrome Design Manual Part 6 Frangibility
Radio Interference None
Table 3 – Environmental Data
3.2 Electrical Data
The luminous signs are powered by series circuits through isolating transformers, meeting FAA
Specs FAA L830-L831, in the following ratings:
TRANSFORMER RATING
2.8 A-6.6 A 4.8 A-6.6 A 6.6 A
200 W 150 W 100 W
Table 4 – Electrical data

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
The power required to CCR per each sings is:
CCR Total Load
2.8 A-6.6 A 4.8 A-6.6 A 6.6 A
190 VA 110 VA 80 VA
Table 5 – CCR Total Load
3.3 Luminance Data
The luminance of the sign faces is practically constant for any value of the series circuit current
from 2.8 A through 6.6 A.
COLORS AT 6.6 A (cd/m
2
)
YELLOW WHITE
190 350
TabLe 6 – Luminance Data
NOTE: the electrical and luminous data are referred to constant current regulators and
isolating transformers manufactured and/or distributed b OCEM. The data ma change
with constant current regulators and/or transformers manufactured b other Companies.
3.4 Description of the Signs
The signs practically include the following sections:
a) main structure
b) panels for faces
c) LEDs luminous source
d) electronic boards.
3.4.1 Main Structure
The main structure principally consists of a bearing bottom structure, two sides, one top cover
and assembling-supporting components.
Bottom structure, sides and top cover are made of extruded aluminium profiles, realized
according to our design.
Each module is supported by four mountings, each including a leg, a breakable coupling and a
floor flange. All these components are cast aluminium.
The signs are equipped with a single top cover, locked to the main structure by means of four
hexagonal knob. The main structure is matt black outside painted.

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
Figure 1 – Overall dimensions
3.4.2 Panel for Faces
The panels for faces are made of high performance methacrylate 5 mm thick.
The legend is obtained by means of adhesive coloured translucent films applied to the internal
side of the panel.
3.4.3 LEDs Luminous Source
Each sign is illuminated by two luminous sources.
LEDs are high efficiency type, white colour with average life 60.000 hours.

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
The positioning of the LEDs has been determined through photometric tests so to meet the
illumination values as required by STANAG 3316.
3.4.4 Electronic Board
For the power supply from the series circuit through the isolating transformer each sign is
equipped with a current converter completely assembled on an encapsulated electronic board.
By varying the current of the CCR in the range 2.8 - 6.6 A, the power supply board provides a
constant current to each luminous source. This allows a constant luminance regardless the step
of the CCR.
For the electrical connection to the isolating transformer the sign is equipped with a two-pole
cable lead with L-823 plug, 1650 mm long.
A flexible plastic pipe of suitable length is provided for cable protection; the pipe has to be fitted
inside a coupling (included in the supply) with G 2” threaded lower section.
An external power disconnecting ON-OFF switch is provided to break all electrical connections to
the sign for safe maintenance.
See Figure 2 for the wiring diagram of each type of sign.

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
Figure 2 – Wiring diagram

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
4INSTALLATION
a) Take as reference Figure 1 for spacing between breakable couplings.
b) Remove the sign from the relevant packing.
c) The signs are normally installed so that the cable entry is located toward the runway or
taxiway edge. As general rule when facing side B the cable entry is placed on the left side.
d) The concrete foundation for the sign should be flat and levelled. Refer to Figure 4 for
relevant data. The isolating transformer must be placed inside a concrete pit complete
with pipe elbow for the secondary cable passage or inside a steel base complete with
upper plate with G 2” threaded coupling for the plug-socket connection.
e) It is recommended that the anchor bolts, used for the flange anchoring, are mounted
after the completion of the concrete foundation. The anchor bolts have to be walled
accurately as shown in Figure 3 and in manner to assure the parallelism of the centreline
marked on the flange and the sign centreline.
f) Remove the frangible couplings floor flanges from the bottom of the sign by loosening
the locking screws (set screw M8x14).
g) Taking care of the levelling of the floor flanges is very important to ease the installation of
the sign. Place a long carpenter level across the top of the breakable couplings to verify
their alignment and levelling. Do not tighten the flanges anchor nuts, tight (only finger-
tight) until the sign installation is complete. Lower the sign with the legs onto the
frangible couplings and tight the locking screws. Check the sign to be sure that it is
levelled. Shim the floor flanges as required and put drying grout under the flange if
necessary.
NOTE: some vertical adjustment can be obtained by rotating the frangible couplings a turn or
two in the floor flanges.
h) Once the sign has been levelled, tighten the anchor nuts securely. (NOTE: anchor
hardware is not supplied with the sign). Anchor hardware should be corrosion resistant.
i) Pass the cable lead with plug through the coupling for flexible pipe and connect the cable
lead with plug of the sign to the socket of the isolating transformer (be sure that the
cable lead with plug be passed through the coupling for flexible pipe). The plug-socket
connection should be secured inside the pipe elbow by using the suitable pair of plastic
rings or inside the baseplate by using the relevant supporting ring. Screw the coupling to
the pipe elbow or to the baseplate, fit the flexible pipe inside it and provide sealing
between pipe and coupling.
j) After the signs have been installed, turn the circuit on to the lowest step and check to see
that all the signs are lighted.

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
Figure 3 – Flange installation with anchor bolts

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
600 500
250 570 250
2200
3500
251
800
Figure 4 – Concrete foundation

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INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
5MAINTENANCE
ATTENTION!
Never operate on electrical and electronic equipment while the CCR is ON.
5.1 Periodical Checks
Dail Check for burned-out led
Monthl Check for dirty panels
Semi-Annual Check for loose wire connections
Check for cracked or deteriorated wires
5.2 LEDs Luminous Source Replacement
LEDs used in the sign have a long average life. When replacement becomes necessary, follow the
procedure below:
a) Be sure that the series circuit is de-activated (CCR OFF); in any case turn the main switch to
OFF position
b) Loose the four screws of the cover and remove it
c) Disconnect the connectors of the damaged LEDs luminous source and loosen the four nuts at
the angles of the support, then slide and lift the support to extract it from its seat
d) Unscrew the six screws of the damaged LEDs luminous source, replace it and restore the
initial condition
e) Mount the top cover with reverse procedure
f) Turn the main switch to ON position, turn On the CCR and check the correct operation of the
sign.
5.3 Electronic Equipment Replacement
If troubles to the electrical electronic are suspected proceed as follows:
a) Be sure that the series circuit is de-activated (CCR OFF); in any case turn the main switch to
OFF position
b) Remove the top cover by loosening the relevant four screws
c) Check the wiring, the connection to the terminal strips and the continuity
d) If necessary replace the power supply board
e) Mount the top cover with reverse procedure
f) Turn the main switch to ON position, turn On the CCR and check the correct operation of the
sign.

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LED STANAG LUMINOUS DISTANCE SIGNS LSDS
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
5.4 Troubleshooting
Problem Problem cause Solution
The sign is totally or
partially not lighted
Defective LED(s) on luminous
source(s)
Replace the LED(s) luminous
source(s)
Defective isolating transformer Replace isolating transformer
Defective power supply board Replace power supply board
The main switch is left to OFF
position Turn the switch to ON position
Bad connection Check wiring
6LIST OF RECOMMENDED SPARE PARTS
CODE DESCRIPTION
RISLG0001 F189 LEDs luminous source board
RISLG0002 F209 power supply board
RISLG0025 Breakable coupling (x4)
RISLG0006 Cable lead with plug, ON-OFF switch with rubber cap