Black Box Network Cables AC455A TX R2 User Manual

JANUARY 2001  
AC455A-TX-R2  
AC456A-RX-R2  
Fiber Link—Transmitter  
Fiber Link—Receiver  
VIDEO IN  
FIBER  
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AC/DC+  
2
GROUND/DC-  
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AC  
CUSTOMER  
SUPPORT  
INFORMATION  
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX  
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746  
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018  
 
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NORMAS OFICIALES MEXICANAS (NOM)  
ELECTRICAL SAFETY STATEMENT  
INSTRUCCIONES DE SEGURIDAD  
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de  
que el aparato eléctrico sea operado.  
2. Las instrucciones de seguridad y operación deberán ser guardadas para  
referencia futura.  
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de  
operación deben ser respetadas.  
4. Todas las instrucciones de operación y uso deben ser seguidas.  
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca  
de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..  
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que  
sean recomendados por el fabricante.  
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea  
recomendado por el fabricante.  
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá  
a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser  
referido a personal de servicio calificado.  
9. El aparato eléctrico debe ser situado de tal manera que su posición no  
interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,  
alfombra o superficie similar puede bloquea la ventilación, no se debe colocar  
en libreros o gabinetes que impidan el flujo de aire por los orificios de  
ventilación.  
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor  
como radiadores, registros de calor, estufas u otros aparatos (incluyendo  
amplificadores) que producen calor.  
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del  
tipo descrito en el instructivo de operación, o como se indique en el aparato.  
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12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización  
del equipo no sea eliminada.  
13. Los cables de la fuente de poder deben ser guiados de tal manera que no  
sean pisados ni pellizcados por objetos colocados sobre o contra ellos,  
poniendo particular atención a los contactos y receptáculos donde salen del  
aparato.  
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las  
recomendaciones del fabricante.  
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas  
de energia.  
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea  
usado por un largo periodo de tiempo.  
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean  
derramados sobre la cubierta u orificios de ventilación.  
18. Servicio por personal calificado deberá ser provisto cuando:  
A: El cable de poder o el contacto ha sido dañado; u  
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o  
C: El aparato ha sido expuesto a la lluvia; o  
D: El aparato parece no operar normalmente o muestra un cambio en su  
desempeño; o  
E: El aparato ha sido tirado o su cubierta ha sido dañada.  
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TRADEMARKS USED IN THIS MANUAL  
Any trademarks mentioned in this manual are acknowledged to be the property of  
the trademark owners.  
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Contents  
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
2.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
2.2 Additional Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
3.1 Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
3.2 Signal Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
3.3 Optical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
3.4 Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
3.5 System Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
4. Transmitter and Receiver Optical Indicators. . . . . . . . . . . . . . . . . . 16  
5. Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
5.1 Try This First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
5.2 Calling Black Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
5.3 Shipping and Packaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
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1. Specifications  
Video Signal  
Video Direction—TXRX  
Number of Video Channels—One  
Standards Supported—Monochrome: EIA and CCIR; Color: NTSC, PAL,  
SECAM  
Video Input Signal—1.0 V p-p nominal composite video  
Input Impedance—75  
Video Output Signal—1.0 V p-p nominal composite video, unity gain, 2%  
Output Impedance—75 Ω  
Signal-to-Noise Ratio—>54 dB at maximum optical attenuation  
Video Bandwidth—10 Hz to 10 MHz  
Video Resolution—800 TV lines  
Differential Phase—<3°  
Differential Gain—<3%  
Tilt—0°  
Input Coupling—Capacitative  
Output Coupling—Sync tip clamped  
Video Interconnection  
Recommended Maximum Distance—Video Equipment to AC455A-TX-R2:  
<100 ft. (30 m); AC456A-RX-R2 to Video Equipment: <100 ft. (30 m)  
Recommended Cable Type—RG59 “U” cable (part number ETN59-BNC)  
Video Termination—The last video component in the video line must be  
terminated with 75 .  
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Control Data Signal  
Data Directions—Control: RXTX; Response: TXRX  
Data Formats—All major up-the-coax formats, including American Dynamics,  
®
Baxall, Burle, Elbex (sync and control), Panasonic (PTZ and VD2), Pelco™,  
Robot, Sensormatic, VCS format, Vicon™, Videoalarm™, and others.  
Detection Area—In even fields, the control signal is imposed on lines 8 through  
19. In odd fields, the control signal is imposed on lines 9 through 20.  
Pulse Amplitude—50 mV to 2 V  
Genlock Sync Signal  
Sync Direction—RXTX  
Detection Area—Can be imposed on all lines outside the control area  
Sync Amplitude—Up to 6 V  
Optical  
Wavelength—850 and/or 1300 nm  
Optical Mode—Multimode  
Optical Budget—13 dB minimum  
Operating Distance at 850 nm—Operating distance is approximate, and will be  
affected by the type and number of splices in the fiber and by the exact type of  
fiber used. Maximum: 10,000 ft. (3048 m)  
Emitter Type—LED  
Fiber Size—62.5 µ  
Modulation Type—Frequency modulation  
Gain Control—Fully automatic (AGC)  
Transmitter Launch Power—> -17 dBm (1300 nm)  
Transmitter Sensitivity—< -27 dBm (850 nm)  
Receiver Sensitivity—< -26 dBm (1300 nm)  
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Receiver Launch Power—> -14 dBm (850 nm)  
Agency Compliance  
Emissions—FCC Part 15; ICES-003 (Canada); AS/NZS 3548 (Australia/NZ); CE  
EN55022; CE EN50082-1, including EN61000-4-2 ESD, EN61000-4-3 Radiated  
Immunity, EN61000-4-4 Electrical Fast, Transient Burst (EFT) Immunity,  
EN61000-4-5 Power Surge Immunity, EN61000-4-6 Conducted Disturbances  
Immunity, EN61000-4-11 Voltage Dips, Short Interruptions and Voltage  
Variations  
Immunity—ENV50204 Radiated, Pulsed Magnetic Field Immunity  
Product Safety—No standards required, since the Fiber Link is DC-powered by  
SELV (Safety Extra-Low Voltage)  
Controls  
Alarm Disable—Removable jumper on receiver cards  
LEDs  
Video In (bicolor)—Shows presence of good video signal  
Level/Loss (bicolor)—Shows presence of good optical signal  
COMMAND—Shows activity on PTZ control channel  
RESPONSE—Shows activity on response channel  
SYNC—Shows activity on genlock channel  
Connectors  
®
Signal Input—Optical: ST ; Video: BNC  
Signal Output—Optical: ST; Video: BNC  
Power Input—Standalone units: 3-pin detachable screw terminal connector;  
Rack units: Direct rack connection  
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Electrical  
Input Voltage—AC455A-TX-R2: 12 to 16 VAC, 12 to 14 VDC; AC456A-RX-R2:  
13.5 to 16 VDC  
Input Power Frequency—50 to 60 Hz  
Current Requirement—AC455A-TX-R2: 300 mA; AC456A-RX-R2: 380 mA  
Power Consumption—6 W  
Heat Equivalent—0.3 BTU/min., 0.09 cal/min.  
NOTE  
The heat equivalent represents the conversion of all input power to heat.  
The actual heat generated will be less.  
Environmental  
Temperature—Operating: 32 to 122°F (0 to 50°C); Storage: -40 to +185°F (-40 to  
+85°C)  
Mechanical  
Enclosure—Transmitter: 4 x 4 (10 x 10 cm); Receiver: 501R  
Construction—Aluminum enclosure with black semigloss paint finish  
Mounting Method—(4) No. 6 (3-mm) screws  
Size—AC455A-TX-R2: 1.2"H x 4.6"W x 4.7"D (3 x 11.7 x 11.9 cm), including  
connectors; AC456A-RX-R2: 1.2"H x 6.3"W x 9.8"D (3.2 x 16.2 x 24.9 cm),  
including connectors  
Weight—AC455A-TX-R2: 0.7 lb. (0.3 kg); AC456A-RX-R2: 1.6 lb. (0.7 kg)  
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2. Introduction  
2.1 Description  
The Fiber Link supports the transmission of video from a camera to a monitoring  
station and a data signal back to the camera over one multimode fiber. A single  
coaxial cable at each end of the link is used to connect the appropriate equipment  
to the system. In up-the-coax systems, video signals travel in one direction and  
control signals travel in the other direction for full-duplex operation. Video is  
transmitted from the camera back to the control center over coaxial cable. In  
conventional coax systems, signals travel in only one direction at a time. Control  
signals to operate the pan-tilt-zoom (PTZ) functions are transmitted from the  
control station out to the receiver/driver at the camera station. The Fiber Link is a  
single-fiber link that uses two different wavelengths (850 and 1300 nm) for two-way  
transmission.  
The control signals are transmitted during the vertical blanking period of the  
video signal. In addition to video and control, the Fiber Link provides for the  
transmission of response signals from the camera station to the control station. It  
also provides for transmission of embedded genlock sync if genlocking is a feature  
of the particular control system used. It works with all major brands of up-the-coax  
systems.  
The Fiber Link features extensive LED diagnostics, with input/output indicators  
for video, command, response, genlock sync, and optical signal strength.  
Table 2-1. Available Models  
Model  
Enclosure  
Type  
Fiber  
Size  
Number Maximum Wavelength  
of Fibers Attenuation  
Transmitter 4 x 4 (10 x 10 cm) 62.5µ  
1
13 dB  
850/1300 nm  
Receiver 501R 62.5µ  
1
13 dB  
850/1300 nm  
2.2 Additional Features  
• Operating distances of 10,000 feet (3048 m) make possible expanded, simpler  
systems.  
• Built-in automatic gain control compensates for optical loss within a system.  
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Video and  
response  
Video and  
response  
Receiver  
Transmitter  
One coaxial  
cable  
One coaxial  
cable  
One fiber  
Figure 2-1. Typical Application.  
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3. Installation  
To install the Fiber Link, you will physically install the modules, connect the  
optical fiber, connect the input and output electrical signals, and connect power to  
the fiberoptic modules. Then you’ll verify correct system operation.  
3.1 Physical Installation  
The Fiber Link is a standalone module. Install Fiber Links in dry locations  
protected from extremes of temperature and humidity.  
1. Determine where you want to install the module, and make sure that there’s  
adequate space at both ends for making various cable connections and  
reading the diagnostic LEDs.  
2. The Fiber Link has mounting holes for four No. 6 screws (3-mm screws).  
Standalone Enclosures:  
CAUTION  
Make sure that the enclosure is not connected to any power source.  
Look inside the enclosure to determine the location of the socket for the edge  
connector on the card. Orient the card so that it will seat in the socket, and slide it  
into the card guides in the enclosure until the edge connector at the back of the  
card seats in the socket. Seating may require gently pressing on the ends of the  
card’s front panel.  
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BNC  
Video In, Level/Loss LEDs  
Fiber  
Command Out, Response In,  
Sync Out LEDs  
Power  
connection (see  
Figure 3-2)  
Figure 3-1. Standalone Transmitter.  
3.2 Signal Connections  
All fiberoptic links convert electrical signals into a light signal at the transmitter  
and convert the light back to electrical signals for output at the receiver. The  
electrical signal connections to the Fiber Link consist of a single BNC connector  
on the transmitter and receiver.  
CAUTION  
Make sure all the peripheral equipment that is to be connected to the  
fiber unit is turned off.  
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NOTE  
Use RG59/U coaxial cable (part number ETN59-BNC) between the video  
equipment and the fiber units. The video equipment and the fiber unit  
should be no more than 100 ft. (30.5 m) apart.  
Terminate the coaxial cable with a female BNC and connect it to the fiber unit.  
Repeat for both ends of the link.  
3.3 Optical Connections  
The standard optical connector on the Fiber Link is ST. Connect the  
preterminated fiber to the two fiber units.  
3.4 Power Connections  
All standalone modules are equipped with removable screw-terminal connectors  
for power input.  
1. Identify the power connector and remove it from the module.  
2. Make sure the power supply is not connected to any power source, and strip  
approximately 14 inch (0.6 cm) of insulation from the ends of the cable.  
3. While observing correct polarization of the cable (see Table 3-1), insert one  
lead into one of the screw sockets and tighten the screw. Repeat for the other  
conductor. Confirm the security of the connection with a light pull on the  
cable.  
Table 3-1. Pin and Connector Functions  
Pin No.  
Function  
Connector  
Function  
Video, Data, and Genlock Sync  
3
2
1
+12 to 16 VDC BNC  
Alarm/+5 VDC  
Ground  
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POWER  
+12~16VDC 3  
ALARM/+5VDC 2  
GROUND 1  
Figure 3-2. Electrical Connection.  
4. Seat the connector in its position in the fiber unit.  
5. Plug the power supply into a suitable outlet.  
3.5 System Power  
Power up the peripheral equipment. You’ll need to verify system operation. You  
can do this by observing video on the monitor at the receiver end, or by operating  
all of the pan-tilt-zoom functions controlled by the up-the-coax data signal. If any  
feature of the system does not perform as expected, refer to Table 4-1 for a  
explanation of how to diagnose system faults using the built-in LEDs.  
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4. Transmitter and Receiver Optical  
Indicators  
All transmitters and receivers have five active LEDs. See Figure 4-1.  
Level/Loss indicators are used in determining received optical power. The LED  
will glow in varying intensities of green depending upon the amount of optical  
power received. Any amount of green illumination, from barely visible to bright,  
indicates that sufficient light is a the receiver or transmitter. Red indicates  
insufficient optical power is being received, suggesting that the fiber is open or that  
the transmitting link is inoperative.  
The VIDEO indicators are used to monitor the presence of valid video signals.  
When a valid signal is being transmitted or received, the VIDEO LED will glow  
green; if no signal is present, the LED will glow red.  
A Red VIDEO LED suggests that the camera is either off or inoperative. It could  
also mean that the coaxial cable from the camera to the module is defective, or  
that the fiber link from the transmitter to the receiver is not functional.  
The COMMAND indicator monitors outgoing PTZ Control Data Pulses, while  
the RESPONSE LED shows return signals from the camera, when applicable.  
The SYNC LED indicates Genlock Synchronization Pulses, when applicable.  
Table 4-1. Diagnostic LED Indicators  
Indicator  
Display  
What It Means  
LEVEL/LOSS  
Green (varying) Sufficient light is at the receiver.  
Red  
Optical power not being received. Fiber  
open, or transmitter or receiver inoperative.  
Check fiber loss, connectors, and splices (if  
any).  
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Table 4-1 (continued). Diagnostic LED Indicators  
Indicator  
Display  
What It Means  
VIDEO (TX)  
Green  
Video coax input to link is good. Note that  
even a totally black screen is a valid video  
signal.  
Red  
Video coax input to link is not good. Check  
the camera and the coax into the link.  
VIDEO (RX)  
Green  
Red  
Valid video signal received. Note that even a  
totally black screen is a valid video signal.  
No video signal received. Check the camera  
and coax. Check the LEVEL/LOSS  
indicator. If the LEVEL/LOSS indicator is  
green, check the video indicator on the TX  
unit.  
COMMAND  
RESPONSE  
Green  
Dark  
Indicates PTZ command transmission  
(>250 mV).  
No activity, or command being transmitted is  
<250 mV.  
Green  
Dark  
Indicates response from camera >250 mV.  
No response from camera or signal is  
<250 mV, may indicate a problem with the  
camera. This function is not commonly  
available in all systems.  
SYNC  
Green  
Dark  
Indicates transmission of Genlock  
Synchronization signals (>2V), where  
applicable.  
No Genlock signal being sent, or signal is  
<2V.  
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COMMAND OUT  
RESPONSE IN  
SYNC OUT  
VIDEO IN  
LEVEL/LOSS  
Figure 4-1. End View of Standalone Module.  
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5. Troubleshooting  
5.1 Try This First  
If you encounter problems using the Fiber Link:  
1. Check to make sure the power is properly connected to the modules.  
2. Then verify that the fiber is good.  
3. Check the video status indicators. If they’re lit, power and video are present.  
NOTE  
Even a totally black picture is a valid input.  
4. If you still cannot find the source of the problem, call Black Box Technical  
Support at 724-746-5500. Before calling, have the following information  
available:  
• Product code (AC455A-TX-R2, AC456A-RX-R2) of the Fiber Link.  
• A listing of the diagnostic indicators and their respective color/condition.  
5.2 Calling Black Box  
If you determine that your Fiber Link is malfunctioning, do not attempt to alter or  
repair the unit. It contains no user-serviceable parts. Contact Black Box at  
724-746-5500.  
Before you do, make a record of the history of the problem. Black Box  
Technical Support will be able to provide more efficient and accurate assistance if  
you have a complete description, including:  
• the nature and duration of the problem.  
• when the problem occurs.  
• the components involved in the problem.  
• any particular application that, when used, appears to create the problem or  
make it worse.  
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5.3 Shipping and Packaging  
If you need to transport or ship your Fiber Link:  
• Package it carefully. We recommend that you use the original container.  
• If you are shipping the Fiber Link for repair, make sure you include its power  
supply. If you are returning the Fiber Link, make sure you include this manual  
as well. Before you ship, contact Black Box at 724-746-5500 to get a Return  
Materials Authorization (RMA) number.  
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© Copyright 2001. Black Box Corporation. All rights reserved.  
1000 Park Drive  
Lawrence, PA 15055-1018  
724-746-5500  
Fax 724-746-0746  
 

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