Artel FiberLink 1900 Series User manual
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MANUAL
Optic IRIG Transmission System
Installation and Operations
Manual
FiberLink
1900 Series
Page 2 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Contents
Introduction ..............................................................3
Quick Installation Guide ...................................................4
Technical Specications ...................................................5
Theory of Operation ......................................................8
Functional Block Diagram .................................................8
Installation Instructions for XA-1900 and XA-1903..........................9
Installation Procedure ................................................9
Installation of XA/RA-1900 in 6000A Chassis...........................9
Signal and Power Connections........................................9
Operating Pointers ..................................................10
Installation Instructions for RA-1900 ......................................12
Installation Procedure ...............................................12
Installation of XA/RA-1900 in 6000A Card Cage.......................12
Signal and Power Connections.......................................13
Operating Pointers ..................................................14
IRIG System Conguration................................................15
Interface Troubleshooting ................................................16
Overall System Checkout and Troubleshooting Techniques ................16
Maintenance.............................................................18
Contents
Page 3FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Introduction
The FiberLink XA-1900 IRIG Fiber Optic Transmitter is designed to convert wide band IRIG
analog signals into modulated light for transmission over ber optic cables. The transmitter
employs linear, intensity modulation and is suitable for use with most optical bers. The
XA-1900 employs a single ended, unbalanced input which is compatible with all IRIG
input formats. There is only one operating control on the XA-1900 series. This is an input
attenuator, designed to allow input signals larger than the normal 1 volt rms level to be
accommodated. The XA-1903 is a 10 channel optical output version of the XA-1900 and is
designed for IRIG signal distribution applications.
The RA-1900 IRIG Fiber Optic Receiver is the companion receiver for the XA-1900 and
XA-1903. It converts the modulated light from a ber optic cable back into an exact
replica of the original transmitted signal. The RA-1900 is intended for driving single ended,
unbalanced loads in accordance with IRIG standards. There is only one operating control on
the RA-1900 series. This is an output level control and is used to compensate for the optical
attenuation of the ber being used.
Introduction
NOTE:
This manual references the following discontinued items:
XR-1900 - No longer in production, no inventory is available.
MCR-1000A - No longer in production, no inventory is available.
Page 4 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Technical Specications | Precautions
Quick Installation Guide
The following is a quick installation guide for the FiberLink XA-1900 and RA-1900. It is
intended for users familiar with the installation of ber optic transmission systems to get
“up and running” in minimal time. For additional details, or for installation of the XA-1903
please consult the balance of this manual.
Standalone Version
Rackmountable Versions
The FiberLink XA/RA-1900 are available in card versions that t the FiberLink 6000A rack-
mountable card cage. See ordering information on page 6 of this manual.
The FiberLink XA/RA-1900 box version may also be used with an existing MCR-1000A rack-
mountable card cage, which is no longer in production. AP-1000 Mounting brackets are
available for systems with existing MCR-1000A card cages.
Optical Conector IRIG Input or
Output BNC
Power
Connector
Note that Pin D is Connected
to the Housing
Pin B* = +15 to +24 VDC
Pin A* = 14 to 18 VAC 50/60 Hz
Pin D = DC or AC Common
XA-1900A
Test Point
Not used on
RA-1900A
*Use either AC (Pin A)
*or DC (Pin B). DO
*NOT USE BOTH!
RA-1900A
Output Level
Adjustment
Not used on
XA-1900A
or
Page 5FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Technical Specications
General Specications
Number of Fibers XA-1900 & RA-1900: 1 ber
XA-1903: 10 bers
Operating Temperature -20 to +60 Degrees C
Operating Power (per unit) +15 to +25 volts DC @ 250 mA or
14 to 18 volts AC, 50/60 Hz
Dimensions XA-1900 & RA-1900:
5 W x 1.25 H x 2.5 L (inches)
127 W x 32 H x 64 L (mm)
XA-1903:
19 W x 1.75 H x 6.5 L (inches)
483 W x 45 H x 165 L (mm)
Weight XA-1900 & RA-1900:
Approx. 1 lb; 0.45 kg
XA-1903:
Approx. 3 lbs; 1.36 kg
Optical Connectors ST: Multimode, ST or FCPC: Single Mode
Indicator LEDs Box: None
Card Transmitter: Power, IRIG present, Alarm
Card Receiver: Power, IRIG present, Alarm
Optical Wavelength MM: 850 nm & 1310 nm
SM: 1310 nm
Optical Fiber 50 or 62.5 micron (MM) multimode ber,
8/10 micron (SM) single mode
System Delay < 5 uSec; Measured from a Transmitter input to a
Receiver output with 1 meter of ber. Does not
include any additional length of ber. Consult
ber cable manufacturer for specic propagation
delay. An approximate ber cable propagation
delay is approximately 5 uSec/km.
MTBF XA-1900: 195,000 hours
RA-1900: 181,000 hours
XA-1903: 74,000 hours
Plastic Material UL-94 V0 or V1 Standard
Page 6 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Technical Specications
Number
Part Number Description of Fibers
XA-1900-1 Transmitter, 850 nm, Multimode, Box, ST 1
XA-1900-C1S Transmitter, 850 nm, Multimode, Card, ST 1
XA-1900-3 Transmitter, 1310 nm, Multimode, Box, ST 1
XA-1900-C3S Transmitter, 1310 nm, Multimode, Card, ST 1
XA-1900-7 Transmitter, 1310 nm, Single Mode, Box, FCPC 1
XA-1900-7-ST Transmitter, 1310 nm, Single Mode, Box, ST 1
XA-1900-C7S Transmitter, 1310 nm, Single Mode, Card, ST 1
RA-1900-1 Receiver, 850 nm, Multimode, Box, ST 1
RA-1900-C1S Receiver, 850 nm, Multimode, Card, ST 1
RA-1900-3 Receiver, 1310 nm, Multimode, Box, ST 1
RA-1900-C3S Receiver, 1310 nm, Multimode, Card, ST 1
RA-1900-7 Receiver, 1310 nm, Single Mode, Box, FCPC 1
RA-1900-7-ST Receiver, 1310 nm, Single Mode, Box, ST 1
RA-1900-C7S Receiver, 1310 nm, Single Mode, Card, ST 1
XA-1903-1 Transmitter, 850 nm, Multimode, ST 10
XA-1903-3 Transmitter, 1310 nm, Multimode, ST 10
XP-1000A 115 volts AC, 50/60 Hz plug-in adaptor
XP-1001 230 volts AC, 50/60 Hz plug-in adaptor
AP-1000 Adapter Plate for use with the MCR-1000* card cage
• Please note that the card versions of these products are compatible with the model 6000A card
cage used with most FiberLink products and uses 1 slot.
• Box versions require the XP-1000A power supply, not included.
• The XA-1903 is a 1RU 19” rackmountable enclosure with internal power supply.
* Box versions can be adapted for use with the discontinued MCR-1000 rack by ordering the
AP1000 adapter plate.
Ordering Information
Page 7FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Theory of Operation
Data Specications
Number of Channels 1
Number of Outputs per Channel XA-1900 & RA-1900: 1, XA-1903: 10
IRIG Compatibility A through H
System Bandwidth (+0, -3 dB) 20 Hz to 100 kHz
Input/Output Load Impedance 600 Ohms nominal
Input/Output Signal Voltage 1 volt rms
Signal/Noise Ratio 67 dB typical
Noise Floor (full bandwidth) 1.3 mv rms maximum
Wavelength Loss (dB) Distance (Km)
850nm MM 0-10dB 0-3.5 (62.5u)
850nm MM 0-10dB 0-4 (50u)
1310nm MM 0-13dB 0-10 (62.5u)
1310nm MM 0-13dB 0-12 (50u)
1310nm SM 0-13dB 0-20
* For system to operate properly, operating loss budget must not be exceeded.
Operating Loss Budget & Maximum Usable Distance*
Page 8 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Installation Instructions for XA-1900 and XA-1903
Theory of Operation
The FiberLink XA-1900 converts an incoming time code signal into a varying current that
intensity modulates the transmitting LED located in the optical connector on the unit.
The modulated light is then applied to a ber optic cable.
The RA-1900 detects the light coming from a ber optic cable by a photodiode located in
the optical connector on that unit. The small current produced by the photodiode is
amplied and applied to a driver stage. This stage provides the proper output voltage to
drive the required load. The output level adjustment is used to set the output audio to the
proper level.
Transmit
LED/LD
LED/LD Driver
Input Buer Amp
IRIG
Output
IRIG
Input
Attenuator
XA-1900 IRIG Transmitter Block Diagram
RA-1900 IRIG Receiver Block Diagram
IRIG
Output
Output DriverCurrent/Voltage
Converter
IRIG Output Level
Receive
Photo-
Diode
600
Page 9FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Transmit
LED/LD
IRIG
Output
Installation Procedure
The FiberLink XA-1900 is supplied pre-aligned for use with an input signal of 1 volt rms. It
may be put into service by simply making the appropriate signal and power connections.
When input voltages in excess of the normal 1 volt rms level are to be accommodated, the
following procedure (in particular, steps 2, 3, and 4) should be followed:
1. It will be necessary to have a source of +15 to +25 volts DC or 14 to 18 volts AC 50/60
Hz. Be certain to make all connections carefully and check that the correct pins are
being used.
2. Turn the input attenuator , located in the white plastic bushing between the electrical
connectors on the XA-1900, fully clockwise (10 - 15 turns will be (adequate). In the
XA-1903, this attenuator is located on the internal P/C board, near the input BNC
connector, and is labeled R1. When using the XA-1903, also set the rear panel input
switch to the 600 ohm position.
3. Apply power and, with no signal applied, connect an oscilloscope between the test
jack, located next to the optical output connector and the case of transmitter for the
XA-1900, and on the P/C board for the XA-1903. Any of the points labeled TP1, TP2,
TP3, TP4 or TP5 may be used. The oscilloscope will show the current owing through
the transmitting LED, which exactly corresponds to the signal being transmitted.
4. Apply the signal to be transmitted and slowly turn the attenuator until the signal
appears on the scope. Now continue to turn the attenuator until a maximum
peak-to-peak amplitude of 0.8 volts is obtained. This point constitutes full modulation.
If the signal level is increased further, distortion and clipping will occur. The best level
is just below the clipping point.
5. Once this adjustment has been made, the transmitter is ready for operation.
Installation of XA-1900 and RA-1900 in the 6000A Card Cage
The 6000A rack-mountable chassis is a 20 slot, 3RU chassis. The XA-1900 and RA-1900 are
available in card versions that t the 6000A rackmount chassis. The adjustment Potentiom-
eters are located on the front of the XA-1900 and RA-1900 cards.
The XA-1900 and RA-1900 cards take advantage of the Alarm function of the 6000A chassis
when using the 6020A ALARM Card. To activate the ALARM function, locate the ALARM
switch on the printed circuit board and set Position 1 to ON. The transmitter ALARM func-
tion will detect loss of input signal. The receiver ALARM function will detect loss of signal or
loss of optical input.
Installation Instructions for XA-1900 and XA-1903
Page 10 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Installation Instructions for XA-1900 and XA-1903
Signal and Power Connections
The XA-1900 box may be powered from an external AC or DC power supply.
Pin connections are as follows:
The transmitting element in the transmitter unit may
contain a solid state Laser Diode located in the optical
connector. This device emits invisible infrared electromag-
netic radiation which can be harmful to human eyes. The
radiation from this optical connector, if viewed at close
range with no ber optic cable connected to the optical
connector, may be sucient intensity to cause
instantaneous damage to the retina of the eye. Direct
viewing of this radiation should be avoided at all times!
PIN For DC Operation For AC Operation
A No Connection 14 to 18 volts 50/60Hz
B +15 to +25 volts No Connection
D DC Common AC Common
E No Connection No Connection
H No Connection No Connection
PIN Function
Center Pin Signal
Outer Shell Signal return and ground
Please note that AC and DC common is connected to the enclosure.
The mating power connector for this system is an Amphenol 126-223 or equivalent.
For operation from 115 VAC 60Hz, a Artel Video Systems XP-1000A plug-in adapter may be
used. This adapter is supplied with the appropriate connector installed.
Signal connections are made via a standard BNC type signal connector.
Pin connections are as follows:
Page 11FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Operating Pointers
Driving Signal: The input to the XA-1900 is an AC coupled 600 ohm impedance. It can be
driven by any source including lines with DC levels (below 4 volts) present. The signal return
is connected to case ground and power ground.
The XA-1903 may be switched between the 600 ohm impedance level and a high imped-
ance level. The high impedance level is used to connect additional XA-1903 units to form
a distribution system. When this feature is desired, connect the original IRIG signal to the
input BNC connector of the rst XA-1903 and the output BNC connector of that unit to the
input BNC connector of the second XA-1903 and so on until all XA-1903 units have been
connected. Then set all impedance switches to the high impedance position except for the
last XA-1903, which should be set for 600 ohms.
Power Supplies: The power input to the XA-1900 box is designed to accept AC or DC
voltages. In order for proper operation, the AC level should not drop below 14 volts rms or
the DC level, below 15 volts DC. As long as this criteria is met, unregulated sources may be
used. To prevent damage, voltages higher than 18 volts AC or 25 volts DC should not be
applied. Suitable voltages can be obtained from various low voltage transformers or from a
FiberLink XP-1000A, 115 to 14 VAC plug-in adapter.
Note that one side of the DC input or AC input is connected to the case.
The XA-1900 and RA-1900 card versions derive their power from the 6000A chassis.
The XA-1903 operates from 115/239 VAC 50/60 Hz internal power supply.
Optical Fiber: Versions of the XA-1900 and XA-1903 are available to drive most multimode
(MM) and single-mode (SM) optical bers. The specic models are identied by a sux at
the end of the model number as follows:
Fiber Size Connector 850nm 1310nm
50u, 62.5u MM ST -1 -3
8/10u SM ST or FCPC - -7
Page 12 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Installation Procedure
The RA-1900 is provided with a single control that will have to be adjusted prior to putting
the unit in service. This control is used to compensate for existing optical cable attenuation.
Since optical cable attenuation is a function of the ber optic cable used, the receiver will
have to be re-adjusted, with the actual ber optic cable used in the system as follows:
1. Apply power and signal to both the RA-1900 to be used as well as the matching
XA-1900 or channel being used on the XA-1903. For alignment purposes, the input
signal to the transmitter should be a 1 KHz, 1 volt rms sine wave.
2. Connect the ber optic cable from the transmitter to the receiver, and a 600 ohm load
resistor to the output connector of the receiver.
3. Connect an oscilloscope across the 600 ohm load resistor.
4. Adjust the output level control until 1 volt rms is obtained.
5. This completes alignment of the receiver.
Installation of XA-1900 and RA-1900 in the 6000A Card Cage
The 6000A rack-mountable chassis is a 20 slot, 3RU chassis. The XA-1900 and RA-1900 are
available in card versions that t the 6000A rackmount chassis. The adjustment Potentiom-
eters are located on the front of the XA-1900 and RA-1900 cards.
The XA-1900 and RA-1900 cards take advantage of the Alarm function of the 6000A chassis
when using the 6020A ALARM Card. To activate the ALARM function, locate the ALARM
switch on the printed circuit board and set Position 1 to ON. The transmitter ALARM func-
tion will detect loss of input signal. The receiver ALARM function will detect loss of signal or
loss of optical input.
Installation Instructions for RA-1900
Page 13FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Signal and Power Connections
The RA-1900 may be powered from an external AC or DC power supply.
Pin connections are as follows:
Installation Instructions for RA-1900
The transmitting element in the transmitter unit may
contain a solid state Laser Diode located in the optical
connector. This device emits invisible infrared electromag-
netic radiation which can be harmful to human eyes. The
radiation from this optical connector, if viewed at close
range with no ber optic cable connected to the optical
connector, may be sucient intensity to cause
instantaneous damage to the retina of the eye. Direct
viewing of this radiation should be avoided at all times!
PIN For DC Operation For AC Operation
A No Connection 14 to 18 volts 50/60Hz
B +15 to +25 volts No Connection
D DC Common AC Common
E No Connection No Connection
H No Connection No Connection
PIN Function
Center Pin Signal
Outer Shell Signal return and ground
Please note that AC and DC common is connected to the enclosure.
The mating power connector for this system is an Amphenol 126-223 or equivalent. For
operation from 115 VAC 60Hz, a FiberLink XP-1000A plug-in adapter may be used. This
adapter is supplied with the appropriate connector installed. Signal connections are made
via a standard BNC type signal connector.
Pin connections are as follows:
Page 14 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Operating Pointers
Output Signal: The output of the RA-1900 is designed to drive load impedances of 600
ohms or more. The RA-1900 employs an unbalanced output conguration with signal
return connected to case ground and power ground. Attempting to drive lower impedance
loads may result in distortion and low output levels.
Power Supplies: The power supply considerations for the RA-1900 are the same as for the
XA-1900.
Optical Fiber: Versions of the RA-1900 are available to drive most multimode (MM) and
single-mode (SM) optical bers. The specic models are identied by a sux at the end of
the model number as follows:
Installation Instructions for RA-1900
Fiber Size Connector 850nm 1310nm
50u, 62.5u MM ST -1 -3
8/10U SM ST or FCPC - -7
Page 15FiberLink 1900 Series User’s Manual
FiberLink 1900 Series IRIG System Congurations
IRIG Time Code
Generator
Fiber Cable
IRIG in
XA-1900
IRIG out
RA-1900
IRIG Time Code
Generator
Fiber Cable 1
IRIG in
XA-1903
Fiber Cable 2
Fiber Cable 10 IRIG out
RA-1900
IRIG out
RA-1900
IRIG out
RA-1900
l
l
l
IRIG Point to Point Example
IRIG Point to Muilti-Point Example
Page 16 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Interface Troubleshooting
Some troubleshooting pointers to consider when this system is not operating properly are:
XA-1900, XA-1903
1. Is operating power present and connected to the proper pins on the power connec-
tor?
2. Is an IRIG signal present at the input connector of the unit?
3. Is the input attenuator set properly?
4. Is the impedance switch on the XA-1903 set properly?
RA-1900
1. Is operating power present and connected to the proper pins on the power connec-
tor?
2. Is the correct ber optic cable connected between the transmitter and receiver?
3. Is the correct size ber being used for the particular transmitter/receiver combination?
4. Is the attenuation of the ber optic cable within the range of the system’s loss budget
specications?
5. Is an IRIG signal present at the output connector of the unit?
6. Is the output attenuator set properly?
If all of the above is correct and the system is still not operating, please contact
the Customer Service Department for further assistance.
Overall System Checkout and Troubleshooting Techniques
Occasionally, during the installation of a ber optic system, diculties arise that are the
result of factors beyond the control of the installer. It is to simplify the task of the installer
that the following general checkout procedure is included.
A. Check Transmitter or Transmit Section of a Transceiver
1. Is operating power (DC, AC, Voltages) correct?
2. Are the correct pins on the connector or terminal block being used?
3. Is the correct signal level present at transmitter input?
4. Is the optical connector on the transmitting LED clear of any obstruction or minute dirt
particles?
5. Does the fact that the power ground and signal ground of many systems are common,
matter?
Interface Troubleshooting | Overall System Checkout
Page 17FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Overall System Checkout
6. Does the fact that the power ground, signal ground, and case are common cause a
short circuit anywhere in the system?
B. Check Optical Connectors
1. Are the connectors being used the correct size for the ber being used?
2. Are the ends of the connectors free of all dust or dirt? If not, gently clean the tip of the
connector with a clean cloth or gauze moistened with alcohol.
3. Is the ber broken in the connector? A quick inspection with an inexpensive jeweler’s
loop can determine this.
4. Is the ber protruding from the tip of the connector? If so, renishing will be necessary.
C. Check Fiber Optic Cable
1. Is the ber optic cable pulled too tightly around a sharp corner?
2. Is the correct ber size being used with the correct transmitter/receiver combination?
3. Does the ber pass light at all? A small penlight or ashlight can usually be used for
this test.
4. Does the ber have too much attenuation for the system? The attenuation measured
on the reel will always be dierent after the cable is installed.
5. When using very short lengths, less than 10 meters (30 feet), overloading of the
receiver may occur. The shorter the length of the ber, the greater the possibility for
this condition. Be sure there is adequate attenuation in any system. If this seems to be
the case, or if operation with a meter or so of ber is required, contact the factory.
D. Check Receiver
1. Is the operating power (DC, AC, Voltages) correct?
2. Are the correct pins on the connector or terminal block being used?
3. Is the optical connector on the receiver optical port clear of any obstruction or minute
dirt particles?
4. Does it matter that the power ground and signal ground of many systems are
common?
Page 18 FiberLink 1900 Series User’s Manual
FiberLink 1900 Series
Maintenance
The FiberLink XA-1900, XA-1903, RA-1900 have all been manufactured using the latest
semiconductor devices and techniques that electronic technology has to oer. They
have been designed for long, reliable, and trouble free service and are not normally eld
repairable. Should diculty be encountered, Artel Video Systems maintains a complete
service facility to render accurate, timely and reliable service of all products.
The only maintenance that can be provided by the user is to ascertain that optical
connectors are free of dust or dirt that could interfere with light transmission and that
electrical connections are secure and accurate.
All other questions or comments should be directed to our Customer Service Department.
It should be noted that many “problems” can easily be solved by a simple telephone call.
Overall System Checkout | Maintenance
The transmitting element in the transmitter unit may
contain a solid state Laser Diode located in the optical
connector. This device emits invisible infrared electromag-
netic radiation which can be harmful to human eyes. The
radiation from this optical connector, if viewed at close
range with no ber optic cable connected to the optical
connector, may be sucient intensity to cause
instantaneous damage to the retina of the eye. Direct
viewing of this radiation should be avoided at all times!
Page 19FiberLink 1900 Series User’s Manual
FiberLink 1900 Series Warranty
• High performance plug and play products
• Stand alone and card cage versions available
• Solutions for most video, audio, and data formats
• Multimode and single mode versions
• Designed and manufactured in the USA
• Training and installation support available
• 24x7x365 technical support available
Proven Products, Unrivaled
Service, and Great Support
Artel Video Systems Corp.
5B Lyberty Way,
Westford, MA 01886 USA
T: 978-263-5775
F: 978-263-9755
sales@artel.com
customercare@artel.com
www.artel.com
All specifications subject to
change without notice. ©2016
Updated 09/01/2016
CS200-101958-00_M
This manual suits for next models
20
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