Artel FiberLink 7240 User manual

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MANUAL
RGB, Stereo Audio, Ethernet and
Two Way Data over Fiber
Installation and Operations
Manual
FiberLink
7240 Series

Page 2 FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Contents
Welcome .................................................................3
Features ..................................................................3
Package Contents.........................................................3
Technical Specications ...................................................4
Installation Instructions ...................................................6
Video Pin Out .............................................................7
Alarm Switch Settings.....................................................9
System Switch Settings...................................................10
Indicator LEDs ...........................................................11
Operating Pointers .......................................................13
Troubleshooting .........................................................13
Maintenance and Repairs ................................................14
Contents

Page 3FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Welcome
The FiberLink 7240/7241 transmitter/receiver pair transmits a single channel of RGBHV, stereo
audio, bi-directional data and bi-directional ethernet signals all over one single mode or
multimode ber. The system’s transparent 10Base-T support enables communication between
a local device, such as a projector or media controller, and a local area network (LAN) server.
The data channel supports RS-232, RS-422 and RS-485 protocols. Units are available in free-
standing box versions or as card versions that t within the rackmountable 6000A card cage.
Features
• All digital processing and transmission delivers crystal clear signals and no color pixel
skewing
• Transmitter/receiver pair for RGBHV, stereo audio and one way data also available
• Low audio/video skew, <300 uSec
• Card or box version. Card ts within model 6000A card cage
• Transparent bidirectional 10Base-T support enables communication between a local
device, such as a projector or a media controller, and a local area network (LAN) server
• Transparent bidirectional data channel supports RS-232, RS-422 and RS-485 protocols.
• FiberLink 7242 & FiberLink 7243 models support one way RS-232 and RS-422
Package Contents
• One FiberLink 7240 and 7241
• This User’s Manual
Welcome | Features | Package Contents

Page 4 FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Model Part Number Specication
Unit Type Part Number
Transmitter Box 7240-BxS
Transmitter Rack Card 7240-CxS
Receiver Box 7241-BxS
Receiver Rack Card 7241-CxS
ST Connectors are provided for use with single mode or multimode ber
X: 3 = MM ber (1310 nm; 850 nm for return path)
7 = SM ber (1310 nm; 1550 nm for return path)
Video Specications
Input Impedance RGB: 75 Ohms; H&V: Hi-Z
Input Level RGB: 714 mV p-p; H&V: 3 to 5 V p-p
H Sync Frequency Range 31.5 to 60 kHz
V Sync Frequency Range 30 to 85 Hz
Number of Video Channels Supported 1 RGBHV
RGB Format Supported RGB with separate H and V
Signal Connectors HD-15F
RGB Processing 24 bits, no compression or scaling
Audio Specications
Number of Audio Channels 2, unbalanced
Frequency Response +0/-0.5 dB, 20 Hz to 20 kHz
Input Impedance >24 k Ohms
Output Impedance <1 Ohm
Maximum Audio Level +10 dBu
THD+N 0.005%; 20 Hz - 20 kHz
SNR (A-Weighted) 95 dB
Channel Phase Dierential +/-0.1
o
Crosstalk Min. 95 dB (1 kHz)
Signal Connectors 3.5mm Stereo jack
Audio to Video Di. Delay (skew) <300 uS
Technical Specications
Technical Specications

Page 5FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Data/PTZ
Protocols Supported RS-232, RS-422, RS-485 2-wire,
RS-485 4-wire
Data Rate DC to 115 Kb/s
Signal Connectors Removable terminal block
Ethernet
Port 10Base-T, RJ-45 connector, Auto-MDIX
Speed 10 Mb/s EthernetOptical Specications
Optical
Operating Wavelength 1310nm; 850nm on return path - MM
1310nm; 1550nm on return path - SM
Optical Fiber 62.5/125 microns MM,
50/125 microns MM or
8-10/125 microns SM
Optical Connector ST
Class I Laser Product complies with FDA performance standard for laser products, Title 21,
Code of Federal Regulations, Sub-Chapter J
Miscellaneous
Operating Temp. Range -20 to +50 degrees C
Operating Power 9-24 Volts AC or [email protected]tts (max.)
Loss Budget and Maximum Transmission Distance
Wavelength Loss Budget (in dB) Distance
1310/850nm - MM 0-10 0-350 meters
1310/1550nm - SM 0-15 0-30 km
*Distance specications are only approximate and are not guaranteed. Operating loss
budget must not be exceeded.
Technical Specications
Technical Specications
The transmitting element in the FiberLink 7240 and 7241
transmitter unit contains a solid state Laser Diode located
in the optical connector. This device emits invisible infrared
electromagnetic 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 sucient intensity to cause
instantaneous damage to the retina of the eye. Direct
viewing of this radiation should be avoided at all times!

Page 6 FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Installation Instructions
The FiberLink 7240 and 7241 come ready for immediate use. There are indicator LEDs on
the units for monitoring purposes.
The following instructions describe the typical installation procedure:
1. Connect the video source to the video input HD connector on the transmitter unit.
2. Connect the video display device to the video output HD connector on the receiver unit.
3. Connect ber optic cable between the 7240 transmitter and 7241 receiver.
4. Connect the audio input signals to the stereo jack on the transmitter unit and connect
speakers or ampliers to the stereo out jack on the receiver.
5. Connect 10Base-T ethernet cables into the RJ-45 connectors located on the transmitter
and receiver units.
6. The data protocol has been preset as RS-232. If RS-422 or RS-485 (2 or 4-wire) are preferred,
please refer to instructions beginning on page 10. If connecting more than one Pure
Digital FiberLink unit on one data line (daisy-chaining) while in either RS-422 or RS-485
4-wire modes, you must set the unit to the RS-485 4-wire multidrop mode.
7. Connect the data cables to the terminal blocks located on the 7240 and 7241 units.
8. Apply power to both Pure Digital FiberLink units. For box versions using DC power
connections, refer to Figure 1.
9. When power is applied, the green POWER LED will light, indicating the presence of
operating power. TheVIDEO LED will given an indication as described on Pages 11 and 12.
10. The green AUDIO LED will give an indication as stated on Page 11 and 12.
11. The green DATA LED will give an indication as stated on Page 12.
12. The RJ45 connector green and yellow LEDs will give indications as described on Page 11.
13. The system should now be operational.
Note that the rack card version has an additional red LED for indicating the presence of an alarm
condition (loss of signal). Refer to the table on Page 9 for alarm enables.
Installation Instructions

Page 7FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Video Pin Out
Video Pin Out Transmitter Receiver
1 Red Red
2 Green Green
3 Blue Blue
4 N/C N/C
5 Ground Ground
6 Ground Ground
7 Ground Ground
8 Ground Ground
9 N/C N/C
10 Ground Ground
11 N/C N/C
12 N/C N/C
13 Hor. Sync. Out Hor. Sync Out
14 Vert. Sync Out Vert. Sync Out
15 N/C N/C
Video Pin Out
System Connections
The input and output connections for the FiberLink 7240 and 7241 units are as follows:
Audio Connector Transmitter & Receiver: 3.5mm stereo jack
Video Connector Transmitter & Receiver: HD-15F connector

Page 8 FiberLink 7240 Series User’s Manual
FiberLink 7240 Series Data Input/Output Connectors
Data Input/Output Connectors
Data terminal block positions 1 through 5 can be used as data inputs or outputs, depend-
ing on the protocol selected. Refer to the following chart:
.RS-232
Position 1 Signal to be transmitted
Position 3 Signal being received
Posting G Signal Common
RS-422/RS-485 4-wire (point-to-point or multidrop)
Position 1 Signal to be transmitted (+)
Position 2 Signal to be transmitted (-)
Position 3 Signal being received (+)
Position 4 Signal being received (-)
Posting G Shield Ground
RS-2485 2-wire
Position 1 Signal being transmitted or received (+)
Position 3 Signal being transmitted or received (-)
Posting G Shield Ground

Page 9FiberLink 7240 Series User’s Manual
FiberLink 7240 Series Alarm Switch Settings
Alarm Switch Settings
Transmitter Card Version Only
Switch Alarm Indication On O
Position
1 Loss of Video Enabled Disabled
2 Loss of Signal Enabled Disabled
Receiver Card Version Only
Switch Alarm Indication On O
Position
1 Loss of Signal Enabled Disabled
2 Loss of Video Enabled Disabled
Note: “Loss of Video” refers to either loss of horizontal or vertical sync. “Loss of Signal”
refers to the absence of an optical signal.

Page 10 FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Protocol 1 2 6 7 8 9
RS-232 O O O O O O
RS-422/485 (4-wire point-to-point O On O O On On
RS-485 (4-wire mulitdrop) On On O O On On
RS-485 (2-wire auto xmit/receive) On O On On On O
Data Input/Output Plug-In:
Switches 1, 2, 6, 7, 8 and 9 are used to select the desired protocol. Positions for these are as
follows:
Switches 3, 4 and 5 are used only in the RS-485 configurations to select the auto time
interval that the unit will wait before switching back to the receive mode (tri-state).
The following table indicates switch positions for RS-485 protocol.
Baud Rate Time 3 4 5
2400 4.73 mS On O O
4800 2.20 mS On On O
9600 1.10 mS On On On
19.2K 620 uS O On O
38.4K 300 uS O On On
57.6K 180 uS O O On
76.8K 150 uS O O O
Switch position 8: When switch is on, then 120 Ohm termination is applied to data input.
Switch position 9: When switch is on, then 120 Ohm termination is applied to data output.
System Switch Settings
The data interface circuit used in this product has external switches that are used to
configure the various signal options. These are preset to RS-232 at the time of shipment. If
changes are required, the positions of these switches must be changed in accordance with
the table below:
System Switch Settings

Page 11FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Transmitter and Receiver LEDs
LED Status Denition
Power On Indicates that correct power has been applied.
RJ45 Green O No Ethernet link detected
LED: On Ethernet link connection established
RJ45 Yellow O or On No activity
LED: Blinking 10Base-T activity detected
Transmitter LEDs
LED Status Denition
Video O No video detected on the input.
Blinking Indicates either H or V sync detected at the
input, but not both
Steady Indicates both H and V sync detected on the
input
Audio O No audio detected by the transmitter unit
Blinking Indicates audio detected by the transmitter unit
Data O No data detected to or from the transmitter unit
Blinking Indicates active data detected to or from the
transmitter unit
Alarm On Loss of video data (rack card only)
Indicator LEDs
The stand-alone box versions of the FiberLink 7240 and 7241 units have four integral
indicator LEDs that are used to monitor the state of the units.
The rack card versions of these products have an additional red indicator LED that lights
when an alarm condition exists. The rack card unit also provides an output to drive a model
6020 Alarm Sensing Module which provides an audible tone and activates a set of contacts
for external signaling purposes.
The status of the LEDs are as follows:
Indicator LEDs

Page 12 FiberLink 7240 Series User’s Manual
FiberLink 7240 Series Indicator LEDs
Receiver LEDs
LED Status Denition
Video O No video detected over ber and, as a
result, no video present on the output.
Blinking Indicates either H or V sync detected at the
input, but not both
Steady Indicates both H and V sync detected over
the ber and, as a result, video present on
the output
Audio O No audio detected over ber and, as a result, no
active audio detected by the receiver unit.
Blinking Indicates audio detected over ber and, as a
result, active audio detected by the receiver unit.
Data O No data detected to or from the receiver unit
Blinking Indicates active data detected to or from the
receiver unit
Alarm On Loss of video or optical signal (rack card only)

Page 13FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Optical Fiber
The 7240 and 7241 transmitter/receiver pair is available in versions that operate with most
multimode (MM) and single mode (SM) optical fibers. Be certain that the correct size fiber is
being used for the particular transmitter/receiver combination.
Also, remember to check the attenuation and bandwidth of the fiber optic cable. The
system will only operate properly if these specifications fall within the range of the system’s
loss budget.
Troubleshooting
Multimode fiber optic cable contains an optical fiber with a light carrying “core” that is only
.0025 inches (62.5 microns) in diameter. Single mode fiber optic cable has an even smaller
“core,” only .00032 to .0004 inches (8-10 microns). This is smaller than a human hair!
Therefore, any minute particles of dirt or dust can easily block the fiber from accepting
or radiating light. To prevent this from happening, always use the provided dust caps
whenever optical connectors are exposed to air. It is also a good idea to gently clean the
tip of an optical connector with a lint-free cloth moistened with alcohol whenever dust is
suspected.
The status of the VIDEO and AUDIO indicator LEDs should provide the first clue as to the
origin of an operational failure. If these are o, it usually means that the fiber is broken or
has too much attenuation. Next, be certain that the input and output signal connections
are correct.
Data Circuit
Even when installed exactly as directed, it is possible that the data function may fail to
operate properly when using the FiberLink 7240/7241 units in the RS-485 2-wire auto
transmit/receive mode. If this problem occurs, it may be that your units are attempting
to interface with other manufacturers’ products that have resting states opposite to the
way in which your FiberLink units have been programmed. (No standard exists.) You can
compensate for this condition by simply switching the polarities of the (+) and (-) pins. To
do this, first swap the Tx (+) and Tx (-) pins with one another and then do the same for the
Rx (+) and Rx (-) pins. Make sure to do this on both the transmitter and receiver units.
If, aer reviewing the above possibilities, the system is still not operating, please contact
the Customer Service Department for further assistance.
Operating Pointers | Troubleshooting

Page 14 FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Maintenance and Repairs
The FiberLink 7240 and 7241 have been manufactured using the latest semiconductor
devices and techniques that electronic technology has to oer. The units have been
designed for long, reliable and trouble-free service and are not normally field repairable.
Should diiculty be encountered, Communications Specialties 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 the optical
connectors are free of dust or dirt that could interfere with light transmission and that
electrical connections are secure and accurate. DANGER! Always turn o the power to the
7240 /7241 transmitter and receiver before removing the optical fiber from either unit!
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 phone call.
Maintenance and Repairs

Page 15FiberLink 7240 Series User’s Manual
FiberLink 7240 Series

• 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
[e-mail]
[e-mail]
www.artel.com
All specifications subject to
change without notice. ©2016
Updated 02/16/2016
CS200-123409-00_D