Model 3000 Long Range L-Band Fiber Optic Link Installation Guide
Contents
1. Adjusts the link gain down When this button is held down the gain decreases 2 dB per second With FIBER OPTIC TRANSMITTER MODULE P N LASER P N WAVELENGTH MODULE S N LASER S N each momentary push of the button gain decreases 0 5 dB Gain Switch Three Position Switch When set to FIX the unit s gain is fixed at an optimum level for the case of low optical loss and a RF Input level of 20 dBm When set to ACG the unit is utilizing its automatic gain control This maintains optimum per formance across the allowable input range When set to MAN the gain can be adjusted over a range of 46 5 dB using the Up and Down buttons 75 Ohm F Conn RF input for 75 Ohm signals 50 Ohm SMA Conn not shown RF input for 50 Ohm signals Optical Out FC APC or SC APC connector Transmitter optical output Invisible laser radiation emitted from this connector Avoid direct eye contact with the beam Power Connector Connects the unit to Model PS3000 20 Volts DC 1 5 Amp power supply This connector also contains the summary fault line Figure 3 Stand alone Transmitter Dimensions in parentheses are in millimeters IOM3000 Revision 5 4 Model 3000 Long Range L Band Fiber Optic Link User Manual 3RU Receiver Module Description FRONT PANEL 3000 RECEIVER mM FOW A 1 39 5 85 3 Thumbscrews 2 Places Used to secure the module top and bot tom to the 3RU chassis RF Test Poin2. Max Units Notes 3RU Rack mount Configuration Module Weight Tx or Rx 8 oz 227 g Module Dimensions Tx or Rx 5 06 x 1 39 x 12 00 in 129 x 35 x 305 mm Stand alone Configuration Module Weight Tx or Rx 2 Ibs 0 91 kg Module Dimensions Tx or Rx 4 36 x 1 26 x 11 50 in 111 x 32x 292 mm Environmental Characteristics Min Typ Max Units Notes Operating Temp Range DWDM 0 40 C Operating Temp Range 10 55 ge Storage Temp Range 40 60 C Humidity RH non condensing 5 95 Specification Notes 1 Force does not recommend applying multi wavelength 3000 systems with DSF dispersion shifted fiber Severe FWM four wave mixing nonlinearities will result 2 In CWDM and DWDM systems Force recommends keeping the launch power per wavelength below 9 dBm to avoid SBS Stimulated Brillouin Scattering 3 The units may be ordered for 75 Ohm or 50 Ohm operation 4 DWDM values will be slightly higher Contact Force Inc for exact specifications IOM3000 Revision 5 4 4 Model 3000 Long Range L Band Fiber Optic Link User Manual 5 6 7 8 9 The specification for intermodulation distortion IMD represents the inherent RF performance of the 3000 system This value is typical for short fiber runs Figure 1 shows the typical IMD performance of the 1550 nm CWDM and DWDM units at distances to 100 km Consider Dispersion Compensation Uncorrected Corrected 0 20 40 60 80 100 Fiber Distance km Fi
3. 14 Table 2 Transmitter RF Level LED Modes 14 Transmitter DSP Circuit 14 Receiver Operation 15 Receiver Gain Sequence and User Controls 15 Figure 8 Receiver Gain and Attenuator Structure 15 Table 3 Receiver and Attenuator Control vs Selected Mode 15 Fixed Gain Mode 16 Automatic Gain Control AGC Mode 16 Manual Gain Control Mode 16 RF Level LED and RF Test Point 16 Table 4 Receiver RF Level LED Modes 16 Receiver DSP Circuit 17 Table 5 Receiver Optical Level LED Status 17 Figure 9 Photo Test Point 17 SNMP Capabilities 18 Table 6 Monitoring Capabilities for the Model 3000 18 Table 7 Transmitter Specific Monitoring Capabilities for the Model 3000 18 Table 8 Receiver Specific Monitoring Capabilities for the Model 3000 18 Table 9 Control Capabilities of the Model 3000 Transmit ter and Receiver 19 Summary Fault Alarms 19 Table 10 Summary Fault Alarms 19 Troubleshooting 19 Problems and Comments 19 Cleaning 20 Warranty and Return Policy 21 Warranty 21 Force Obligations 21 Exclusions 21 Product Return Policy 24 Products Returned for Credit Non Distributor 22 Products Returned for Repair or Replacement 22 Active Product Under Warranty 22 Obsolete Product Under Warranty 22 Active Out of Warranty 22 Obsolete Product Out of Warranty 23 Receiving an RMA for Returns 23 Repair Service 23 Shipping and Handling Precautions 23 Storing the Unit 23 IOM3000 Revision 5 4 Model 3000 Long Range L Band Fiber Optic Link User
4. 2 dB per second With each momentary push of the button the gain will increase 0 5 dB Volts DC 1 5 Amp power supply This connector also contains the summary fault line Figure 2 Stand alone Receiver Dimensions in parentheses are in millimeters IOM3000 Revision 5 4 Model 3000 Long Range L Band Fiber Optic Link User Manual Stand alone Transmitter Description Mounting Holes 0 16 Diameter 4 Places Used to mount the unit during installation RF Test Point 20 dB from RF input Monitors the RF level See page 14 for details Install a 50 Ohm termination when not in use RF Level Tri colored LED Indicates the RF level input See LED Functions page 11 for details Laser Test Point Monitors the laser current 1 V 20 mA Nominal laser current is approximately 50 mA See page 14 Transmitter DSP Circuit Laser Temp RGB LED The LED s color indicates the laser oper ating temperature See LED Functions page 11 for details TEC Test Point Monitors the DWDM laser s TEC See page 14 DWDM versions only LNB Power Green LED When LNB power is installed this LED lights to indicate that the unit is providing 18 Volts DC See LED Functions page 11 for details Gain Adjust Up Button Adjusts the link gain up When this button is held down the gain increases 2 dB per second With each mo mentary push of the button the gain increases 0 5 dB Gain Adjust Down Button
5. A multi colored laser temperature LED LASER TEMP indicates the laser operating temperature When the laser is cold the LED illuminates blue at normal room temperature it will be green and at elevated temperatures it will be red This is a multi color device so the hues will vary between these colors depending on the actual room temperature If there is a laser fault the LED will flash The color of the LED still represents the laser temperature The DSP also monitors the transmitter s operating temperature and operating voltages In the 3RU configura tion if there is a fault in the operation of the monitored functions that are beyond the DSP control it will send an alarm signal to the chassis fault monitor connector A fault condition is defined as a normally closed dry contact closure Receiver Operation Connect the receiver to the optical fiber before the transmitter is powered to limit any exposure to the invisible laser output The 3RU receiver module has been designed to be hot swappable and has built in protection against over and under voltage conditions and short circuits by folding back power to limit the affects on any adjacent module s operation The module power will reset when the condition is corrected Receiver Gain Sequence and User Controls The overall structure of the receiver is shown in Figure 8 This drawing details the gain and attenuator struc ture of the receiver and describes the operation of the various gain m
6. Manual Product Specifications Optical and RF Characteristics SM Fiber Min Typ Max Units Notes Tx Optical Output Power 2 3 4 dBm CWDM DWDM Optical Output 3 dBm l2 Rx Optical Input Power 15 3 dBm Optical Loss Range 0 18 60 dB km Conventional Wavelength 1280 1310 1340 nm Conventional Wavelength 1520 1550 1580 nm Impedance 75 Ohms 3 Impedance 50 Ohms 3 VSWR Tx 75 Ohm 1 1 2 VSWR Rx 75 Ohm 1 1 4 Frequency Range standard 950 2150 MHz Flatness 950 2150 MHz 1 25 1 75 dB 4 Flatness any 36 MHz 0 25 dB 4 Intermodulation Products 55 dBc 5 ney Figure 20 dBm in max optical 46 JB 6 ne Figure 50 dBm in max optical 19 dB 6 a 36 MHz 30 km 1310 nm 20 dBm 37 dB CNR 36 MHz 50 km 1550 nm 20 dBm in 37 dB ii Signal Range small aperture total 50 20 dBm 7 ae Signal Range large aperture total 30 0 dBm 7 AGC Output Signal Range total power 25 10 dBm Rx Automatic Fixed Gain Control 15 dB 8 Rx Manual Gain Control 46 5 dB 9 IOM3000 Revision 5 4 3 Model 3000 Long Range L Band Fiber Optic Link User Manual Electrical Characteristics Note 10 Min Typ Max Units Notes 3RU Rack mount Configuration Power Supply Voltage 20 Volts DC Tx Supply Current DWDM Tx w LNB 0 7 A RX Supply Current 0 25 A Stand alone Configuration Power Supply Voltage 20 Volts DC 11 Power Supply Current 1 5 A Physical Characteristics Min Typ
7. Pasternack PE7078 The amplitude will be reduced an additional 6 dB so the test point will be approximately 26 dB below the transmitter input level Pasternack Enterprises can be found at www paster nack com Transmitter DSP Circuit The transmitter uses a powerful DSP system which monitors and controls key operating parameters In addi tion switches LEDs and test points provide the user flexibility and visual aid during setup and operation The DSP circuit monitors and controls the laser operation by controlling the laser current RF drive OMI operating temperature and in the case of dense wavelength division multiplexing DWDM lasers the ther mal electric cooler current TEC I and the operating wavelength The units contain test points to monitor the laser current LASER I and the thermal electric cooler current TEC I The laser current is scaled at 1 Volt DC and equals 20 mA with a full scale reading of 100 mA Nominal laser current is approximately 50 mA The IOM3000 Revision 5 4 14 Model 3000 Long Range L Band Fiber Optic Link User Manual TEC I test point is nominally centered at 1 5 Volts DC when the temperature of the laser is at or near room temperature and will vary 1 Volt depending on the laser temperature and the current required to maintain the correct wavelength The DSP will shut down the laser current and TEC circuit if the operating conditions go outside of programmed limits to protect the laser from damage
8. conforms to the Electromagnetic Compatibility Requirements in accordance with European Community directive 89 336 EEC 11 Force Inc provides the Model PS3000 power supply for use with the stand alone transmitter and receiver which ships with the units IOM3000 Revision 5 4 5 Model 3000 Long Range L Band Fiber Optic Link User Manual Installation and Operation General Installation Instructions Installation of the Model 3000 normally requires only verification of signal inputs and outputs Locate the equipment in an area that provides adequate lighting and is relatively free from dust The 3RU configuration requires rear access for installation and maintenance Do not install the equipment near sources of excessive heat such as furnace outlets or above heat producing units such as large power supplies and tube type equip ment Slots and openings in the rear panel are provided for ventilation To protect from overheating these openings must not be blocked Observe temperature and relative humidity requirements specified on page 4 Stand alone Receiver Description FIBER OPTIC RECEIVER MODULE P N WAVELENGTH MODULE S N mamoow 1 26 l 32 H l F RCE nspa sburg VA 24073 Made in USA Mounting Holes 0 16 Diameter 4 Places Used to mount the H Gain Adjust Down Button Adjusts the link gain down When this stand alone units during installation button is held down the gain will decrease 2 dB per se
9. not cover fuses batteries and lamps Modifications or alterations of Force products including but not limited to installation of non Force equipment or computer programs except as authorized by Force will void this warranty Removal or breaking of the seals on the product will also void the warranty In addition cost of repair by unauthorized persons within the warranty period of the product will not be cov ered by Force Incorporated Such repairs will void the warranty Force Incorporated makes no other representation or warranty of any other kind express or implied with respect to the goods whether as to merchantability fitness for a particular purpose or any other matter Force Incorporated s liability shall not include liability for any special indirect or consequential damages or for any damages arising from or attributable to loss of use loss of data loss of goodwill or loss of anticipated or actual revenue or profit or failure to realize expected savings even if Force Incorporated has been advised of the possibility of such damages This warranty constitutes Force Incorporated s entire liability and the cus tomer s sole remedy for defects in material and workmanship Product Return Policy Customers will be permitted to return products for credit repair or replacement only after receiving authori zation from the Customer Service Manager CSM and only with a valid Return Material Authorization IOM3000 Revisio
10. APC or FC APC Optical Output N A Optical In SC APC or FC APC N A Optical Input RF Test Point SMA RF Level Monitor RF Level Monitor LED Functions Location Name Color Condition Green RF input is within the normal operating range Transmitter RF Level Red RF input exceeds normal operating range Orange RF input is below normal operating range Blue Laser is cold Green Laser is at room temperature Red Laser is above normal operating temperature Transmitter Laser Temp Software has detected a malfunction in the laser servo Blinkin controller and the laser output can no longer be stabi 9 lized or the laser itself has malfunctioned The color still indicates the laser temperature Green LNB power is installed and providing 18 Volts DC Dark LNB power is installed and the LNB circuit is drawing Transmitter LNB Power Blinking once per Second more than the maximum rated current The applied load is close to the rated maximum current and the circuit shuts down and then repeatedly tries to restore power RF output is within the normal operating range greater Green than 25 dBm and less than 10 dBm total RF output RF output exceeds normal operating range less that 25 dBm total RF output OR optical modulation index OMI Receiver RF Level Orange has decreased to a level that affects the system perfor mance transmitter RF input is below the rated minimum level or RF input signal has been lost Red RF output is below normal o
11. Control Reset Initiates a hardware reset on the board Initiates a hardware reset on the board Summary Fault Alarms Table 10 lists the different conditions that cause the summary fault to trigger The summary fault is routed to the back plane for rack mounted systems and routed out of the power connector for stand alone systems refer to IOM3000C for detailed information A fault condition is defined as a normally closed dry contact closure Table 10 Summary Fault Alarms Transmitter Summary Faults Receiver Summary Faults System Over Temp System Over Temp RF Input High RF Output High RF Input Low RF Output Low Laser Power Failure Optical Input High Laser Over Temp Optical Input Low Troubleshooting Common problems include lack of continuity in the optical fiber lack of power reversed power stand alone units only or improper input levels The units are designed to work with a 75 Ohm system or a 50 Ohm system depending on the model ordered A number of indicator LEDs on the units may assist in troubleshooting These allow the user to quickly assess the nature of any major unit malfunctions Problems and Comments Problem Check Comments If the unit is receiving power chassis Power On LED is green check the No optical power out of transmitter transmitter Laser Temp LED If this is 3RU Rack mount Configuration LED is dark the laser may be in danger of overheating Remove power from t
12. E by the user is saved to flash memory after 30 seconds of button inactivity The saved value will be restored upon a power cycle of the unit or re entering AGC mode Manual Gain Control Mode In the manual mode MAN the UP DOWN buttons control the gain over a 46 5 dB range in 0 5 dB steps The user may optimally set the receiver gain by following the steps below 1 Ensure the optical cables are clean and connected 2 Ensure that the desired RF input is applied to the transmitter 3 Switch the receiver mode control to AGC This allows the system to calculate the optimum level applied to Attenuator E 4 Press and hold the Gain UP button until the RF Level LED just turns red 5 Now repeatedly tap the Gain DOWN button until the RF Level LED goes solid green At this point the RF level is 10 dBm 6 Finally tap the Gain Down button ten more times This will set the receiver output RF level to 15 dBm 7 Switch to manual mode After 30 seconds of button inactivity the settings are saved to flash memory Upon a power cycle these settings are restored RF Level LED and RF Test Point Details of the receiver RF Level LED modes are shown in Table 4 Table 4 Receiver RF Level LED Modes Orange Green Red RFout opm OR 10 dBm gt RFou gt 25 dBm AND RF oy gt 10 dBm OMI Failure OMI in Range The RF TEST point allows the user to monitor the RF output from the receiver reduced by 20 dB attenua tion without distu
13. FIBER END FACE Many fiber optic installations experience degraded performance due to dirty optical connector end faces Download http Avww forceinc com techbull optical connector cleaning pdf for complete instructions IOM3000 Revision 5 4 20 Model 3000 Long Range L Band Fiber Optic Link User Manual Warranty and Return Policy Warranty Force Incorporated standard products are warranted to be free from defects in materials and workmanship meeting or exceeding factory specified performance standards for a period of three 3 years from date of pur chase Force Obligations Force will at its discretion and expense repair any defect in materials or workmanship or replace the product with a new product Force will upon receipt of the return evaluate the product and communicate to the cus tomer the nature of the problem and determine if the claim falls under warranty coverage If during the warranty period Force is unable to repair the product to the original warranted state within a rea sonable time or if subcomponents of the unit have been obsoleted or discontinued then Force has the option to provide an equivalent unit Exclusions This warranty does not extend to any product that has been damaged due to acts of God accident misuse abuse neglect improper system design or application improper installation improper operation or mainte nance or connection to an improper voltage supply The Force warranty does
14. G OPTICAL BROADCAST SYSTEMS Model 3000 Long Range L Band Fiber Optic Link Installation Guide and User Manual IOM3000 Revision 5 4 June 2006 Laser Safety Warning The optical emissions from the units and connected optical fiber are laser based and may present eye haz ards Follow all safety precautions SE INVISIBLE LASER RADIATION Invisible laser radiation 3 AVOID DIRECT EXPOSURE TO BEAM pinittod Teainy Mile connecta Indium Gallium Arsenide Phosphide 100 mW max power output Class IIIR Laser Product This product complies with applicable BRH standards under the Radiation Control for Health and Safety Act of 1968 Technical Support If you encounter any kind of problem after reading this manual contact your local distributor or a Force Inc Applications Engineer To reach technical support On the Web http www forceinc com USA 800 732 5252 TEL 540 382 0462 By Fax 540 381 0392 By Email csr sales forceinc com By Phone Monday through Friday 8 00 am to 5 00 pm EST 825 Park Street Christiansburg VA 24073 USA 800 732 5252 TEL 540 382 0462 FAX 540 381 0392 csr sales forceinc com www forceinc com 2006 by Force Inc Force reserves the right to make changes to the product described in this document in the interest of product improvement Model 3000 Long Range L Band Fiber Optic Link User Manual Contents Laser Safety Warning 1 Technical Supp
15. Revision 5 4 12 Model 3000 Long Range L Band Fiber Optic Link User Manual Transmitter Gain Sequence and User Controls The overall structure of the transmitter is shown in Figure 6 This drawing details the gain and attenuator structure of the transmitter and describes the operation of the various gain modes gt Shutdown Bias RF Test Point 20 dB ALaser A Attenuator A Attenuator B RF Input RF In Level Detector AGC RF Level Detector RF Level LED Red RF Input High Orange RF Input Low Green RF Input in Range Blinking Exceed Optimum OMI Figure 6 Transmitter Gain and Attenuator Structure Table 1 3000 Transmitter and Attenuator Control vs Selected Mode Mode Range Attenuator A Attenuator B FIX Mode Fixed at Factory Settings Fixed at Factory Settings AGC Mode Automatic Software Control Automatic Software Control MAN Mode User Control Full Range User Control Full Range Attenuation Range 0 31 dB 0 15 5 dB A In the FIX gain mode Attenuators A and B are set to factory determined values appropriate for 20 dBm transmitter RF input level and low optical loss B Inthe AGC gain mode Attenuators A and B are controlled by software They are adjusted to try to achieve the optimum OMI for the laser As the RF input level increases the software increases the atten uation to keep the laser OMI optimum C Inthe MAN gain mode Attenuators A and B are controlle
16. arate multiple units that are packaged together 2 Care should be taken not to drop or strike the units in any way especially around the optical connectors 3 The units should never be submersed in any liquid SEVERE SHOCK HAZARD Storing the Unit If a unit is to be out of use for an extended period of time the following steps should be taken to ensure the preservation of the unit 1 The storage temperature range is 40 C to 60 C Allow time for unit to restore to room temperature and dry out before power is applied 2 A low humidity environment is preferable for long term storage 3 All connectors should be covered with active device receptacle caps IOM3000 Revision 5 4 23
17. ce Ing PS3000 Wall mount Power Supply 20 Volts DC 1 5 Amps Stand alone unit alone Versions Items Required Stand alone Configuration Qty Mfr P N Description AR Force Inc 3001BR NN Remote SNMP Module i 4 40 or 6 32 Panhead Mounting Screws with Lock Washers and 4 per unit Any Any Nuts 1 Any Any Straight Screwdriver AR Ay Any Ko um Single mode Fiber with Appropriate Optical Connec Items Required 3RU Configuration Qiy Mfr P N Description AR Any Ay Standard EIA 19 Rack with Earth Ground rack mount configura tion only AR Force Inc 3000CB NN 3RU Rack Chassis AR Force Inc 3000UX NN 3RU Power Supply AR Any Any Three wire Ground IEC Power Cord AC Versions AR AR AR 14 AWG Stranded Copper Wire UL 1061 300V 80 C DC Ver sions AR iy ey 9 125 um Single mode Fiber with Appropriate SC APC or FC APC connectors Inspection Remove the units from their shipping container Any in shipment damage that may have occurred should be visually apparent Look for bent or damaged connectors or mounting brackets Claims for damage incurred in shipment should be made directly to the transportation company in accordance with their instructions Save the shipping cartons until installation and performance verification are completed Stand alone Module Installation The stand alone modules may be mounted in any orientation on most flat dry surfaces Secure panhead screws through mounting holes provided a
18. cond With RF Test Point 20 dB from output connection Monitors the RF each momentary push of the button the gain will decrease 0 5 dB level See page 14 for details Terminate with provided 50 Ohm I Gain Switch Three Position Switch When set to FIX the unit s termination when not in use gain is fixed at an optimum level for the case of low optical loss RF Level Tri colored LED Indicates the receiver RF output level and a RF Input level of 20 dBm When set to ACG the unit is See LED Functions page 11 utilizing its automatic gain control This maintains optimum per AGC Detect Test Point Monitors the RF level with an optimum formance across the allowable input range When set to MAN setting of approximately 1 7 Volts DC See page 14 the gain can be adjusted over a range of 46 5 dB using the Up and Optical Level Tri colored LED Indicates the receiver optical sig Down buttons nal operating parameters See LED Functions page 11 J 75 Ohm F Conn RF output for 75 Ohm signals Photo Test Point Indicates the received optical signal level over K 50 Ohm SMA Conn not shown RF output for 50 Ohm signals a5 V range See Receiver DSP Circuit page 17 for details L Optical In FC APC or SC APC connector Receiver optical input Gain Adjust Up Button Adjusts the link gain up When this button M Power Connector Connects the unit to the Model PS3000 20 is held down the gain will increase
19. configurations Transmitter LED Power up Sequence On power up the LASER TEMP LED will illuminate blue while the RF LEVEL and LNB POWER LEDs will remain unlit Within one second the LNB POWER LED will turn green provided that the optional LNB power circuitry is installed and operating properly Be aware that the LNB POWER LED will be green whether or not the transmitter is providing current to an LNB load Approximately two seconds after initial power up the LASER TEMP LED will go dark momentarily and then both the LASER TEMP and RF LEVEL LEDs will relight The colors of these two LEDs indicates the suitability of the RF input signal and the laser temperature A flashing RF LEVEL indicates that the optimum optical modulation index OMI has been exceeded A flashing LASER TEMP LED indicates either an excessive OMI level or a laser circuit con trol loop failure The significance of the LED colors and of flashing LEDs is described on page 11 Receiver LED Power up Sequence There are nine possible color combinations that a receiver s two front panel LEDs may assume on power up all of which may be valid under the right conditions In the simplest case that in which the receiver is not opti cally connected to a transmitter both LEDs will illuminate orange It becomes much more difficult to predict the initial states of the LEDs if the receiver is connected to a transmitter In this situation the transmitter s RF input level the gain control mod
20. d by the user The software accepts commands from the UP and DOWN buttons and translates those commands into specific attenuator settings The transmitter has three main modes of operation which are controlled by the unit s rocker switch It con trols the system mode and the amount of RF gain required to drive the laser based optical output Three choices are fixed gain FIX automatic gain control AGC and manual gain control MAN operation The UP DOWN buttons are used to adjust the gain settings In manual mode the user has 46 5 dB of adjustment Protection circuits are included to protect the laser from RF overdrive conditions and resultant laser failures Fixed Gain Mode The FIX mode is factory set to provide the optimum optical modulation index OMI with the maximum RF drive levels It is intended for short fiber runs only lt 2 km In this mode the transmitter expects an RF input level of 20 dBm The optical loss is assumed to be less than 1 dB which will give the receiver an RF output level of 15 dBm assuming that the receiver output level trim is set a 0 dB receiver mode is set at FIX In the case of 1 dB of optical loss switch the receiver from AGC to FIX and tap the Gain UP button four times to achieve a 15 dBm RF output In the case of 2 dB of optical loss switch the receiver from AGC to FIX and tap the Gain UP button eight times to achieve a 15 dBm RF output Figure 7 illustrates the FIX mode 3000 Tx C 3000 Rx
21. el gt 15 dBm Optical Level gt 3 dBm The photo current test point PHOTO I delivers 0 to 5 Volts DC and can be used to monitor the optical input signal level Figure 9 shows the typical behavior of the PHOTO I test point During installation the PHOTO I can be used to optimize the optical signal by peaking the voltage reading to obtain the best carrier to noise ratio The RF LEVEL LED illuminates orange when the RF detector input is below the optimum level green when at the optimum level very narrow range in AGC mode reflecting its hysteresis and red when over the optimum level 5 45 4 35 3 25 2 15 4 05 0 PHOTO Photo Current Test Point Volts 0 0 5 1 1 5 2 2 5 3 Receiver Optical Input Power mW Figure 9 Photo I Test Point The AGC DETECT test point can be used to monitor the RF level The optimum set point is 1 85 Volts DC This voltage varies somewhat from unit to unit With no RF input the AGC DETECT test point typically drops below 1 20 Volts DC An RF TEST point 50 Ohm SMA connector can be used with external equip ment to monitor the module RF output attenuated by 20 dB This test point should be terminated with the provided 50 Ohm SMA termination when not being monitored by external test equipment The DSP also monitors the receiver operating temperature and operating voltages In the 3RU configuration if there is a fault in the monitored functions t
22. es of both the transmitter and receiver and the optical loss between the trans mitter and receiver must all be considered when deciding what states the receiver s LEDs should assume on power up Although it is possible to obtain usable electrical signals from a receiver when the received optical power is outside the normal operating range i e when the OPT LEVEL LED is not green it cannot be guar anteed that the performance of the link will meet the published specifications In any case the DSP will set the LEDs to their appropriate states based on the link conditions within two seconds of application of power to the unit The significance of the LED colors are described on page 11 Transmitter Operation Connect the transmitter module to the optical fiber before applying power to the unit This limits any exposure to the invisible laser output The 3RU transmitter module has been designed to be hot swappable and has built in protection against over and under voltage conditions and short circuit conditions internally or on the RF input cable The power will fold back to limit the effects on adjacent modules and the module and optional LNB power will be reset when the condition is corrected The module may be ordered to provide 18 Volts DC at 350 mA to the RF input connector The LNB power is independent of the module power system and there is a front panel LED that illuminates green when the LNB power is installed and operational IOM3000
23. gure 1 Typical IMD Performance vs Fiber Length Intermodulation distortion IMD is tested by injecting two 38 dBm tones at frequencies of 1000 MHz and 1001 MHz into a transmitter set in AGC mode using a short length of fiber This assures a 30 OMI at the laser The specification for IMD represents the performance of the 1310 nm units at any fiber dis tance and the performance of 1550 nm CWDM and DWDM units at distances shorter than 20 km At dis tances greater than 20 km the IMD increases with fiber length as the laser chirp interacts with the fiber dispersion The IMD increases steadily with distance At distances greater than 40 km Force recommends that only one polarization be transmitted unless dispersion compensation is used At distances greater than 60 km Force recommends that the use of dispersion compensation be considered Contact Force Inc Application Engineers to have your specific application analyzed The noise figure is given for minimum and maximum power at maximum optical loss Small aperture or large aperture is specified when the unit is ordered In AGC FIX mode receiver output levels may be user adjusted over a dynamic range from the set point 5 dB to 10 dB in 0 5 dB increments In manual gain control mode receiver output levels may be adjusted within a dynamic range of 46 5 dB in 0 5 dB increments Fixed and manual gain control specifications do not account for optical loss over time or temperature 10 This product
24. hat is beyond DSP control it will send an alarm signal to the chas sis fault monitor connector A fault condition is defined as a normally closed dry contact enclosure IOM3000 Revision 5 4 17 Model 3000 Long Range L Band Fiber Optic Link User Manual SNMP Capabilities The 3000 series boards are capable of Simple Network Management Protocol SNMP monitoring and control over an Internet Protocol IP network when used with a SNMP enabled power supply Model 3000UB NN or Model 3000UD NN refer to IOM3000C for more information or Model 3001BR NN Remote SNMP Mod ule contact the factory for more information Refer to SNMP manager software MIB browser for more infor mation Table 6 lists the monitoring capabilities of the 3000 transmitter and receiver Table 7 and Table 8 give information on SNMP monitoring specific to the transmitter and receiver Table 6 Monitoring Capabilities for the Model 3000 Common Serial Number Lists the serial number of the addressed card Displays the number of seconds the addressed card has been running since Uptime Time power up Model Displays the model number Slot ID Displays the slot number of the board Firmware Version Lists the firmware version Fault Status Tx Rx System Over Temp System Over Temp Laser Over Temp RF Input High RF Input High RF Input Low RF Input Low Laser Power Failure Optical Input High Laser Under Temp Optica
25. he unit immediately If the transmitter Laser Temp LED is green contact Force Inc for additional instructions Verify that the power connections are firmly made and verify the integrity of the power cord Be sure that that the Check transmitter power connection primary power source has not been inadvertently turned off and that no No optical power out of transmitter fuses have blown in the unit or at the Stand alone Configuration power source If the unit is receiving power check the Laser Temp LED If this is LED is dark If the transmitter Laser Temp LED is the laser may be in danger of over green contact Force Inc for additional heating Remove power from the unit _ instructions immediately If reducing the gain of the transmitter does not rectify the issue the transmitter may be in need of factory repairs Con tact Force Inc for additional instruc tions Flashing Laser Temperature LED on the Laser Power Failure or Exceeded Allow transmitter able OMI reduce gain IOM3000 Revision 5 4 19 Model 3000 Long Range L Band Fiber Optic Link User Manual Problem Check Comments Flashing RF Level LED on the transmit ter only Exceed optimum OMI reduce gain If reducing the gain of the transmitter does not rectify the issue the transmitter may be in need of factory repairs Con tact Force Inc for additional instruc tions No op
26. he link gain up When this button is held down the gain increases 2 dB per second With each mo mentary push of the button the gain increases 0 5 dB Gain Adjust Down Button Adjusts the link gain down When this BACK PANEL 75 OHM K 50 OHM H L S LS button is held down the gain decreases 2 dB per second With each momentary push of the button gain decreases 0 5 dB Gain Switch Three Position Switch When set to FIX the unit s gain is fixed at an optimum level for the case of low optical loss and a RF Input level of 20 dBm When set to ACG the unit is utilizing its automatic gain control This maintains optimum per formance across the allowable input range When set to MAN the gain can be adjusted over a range of 46 5 dB using the Up and Down buttons 75 Ohm F Conn RF input for 75 Ohm signals 50 Ohm SMA Conn not shown RF input for 50 Ohm signals Optical FC APC or SC APC connector Transmitter optical out put Invisible laser radiation emitted from this connector Avoid direct eye contact with the beam Backplane Connection Inserts into the backplane of the rack chassis allowing the chassis to provide power to the module Figure 5 3RU Transmitter Front and Rear Panels Dimensions in parentheses are in millimeters 3RU Chassis Description The Model 3000 transmitter and receiver each occupy one slot in the Model 3000 3RU rack chassis which can house one or tw
27. he optimal transmitter gain in manual mode first apply the desired RF input to the transmitter when the mode is set to AGC The system will determine the optimum settings Then switch from AGC to MAN mode This will set the initial manual settings to those the DSP calculated in AGC mode After 30 seconds of button inactivity the new manual settings are saved to flash memory If a power cycle occurs the system upon power up will restore the last saved settings RF Level LED and RF Test Point Details of all of the transmitter RF Level LED modes are shown in Table 2 Table 2 Transmitter RF Level LED Modes Tx Gain F Rai Mode Version Orange Green Blinking Green Red gt 50 dBm amp RF input conditions o Small Aperture lt 50 dBm 2 20 dBm fargreen nnd OMI gt 20 dBm ds opti Large Aperture gt 30 dBm 4 oe ve i ae Alaa gt 0 dBm Small Aperture lt 50 dBm E s Never gt 20 dBm AGC amp Fix SSE Large Aperture gt 30 dBm zO abe Never gt 0 dBm The RF TEST point allows the user to monitor the RF input to the transmitter reduced by 20 dB attenuation without disturbing the signal path The RF TEST connector should be terminated with the provided 50 Ohm SMA termination at all times when not in use In order to monitor the signal at the RF TEST connector using 75 Ohm equipment Force Inc recommends using a male SMA to male SMA adapter Pasternack PE9069 and a 50 Ohm SMA female to 75 Ohm F female matching pad
28. l Input Low Table 7 Transmitter Specific Monitoring Capabilities for the Model 3000 Parameter Description Laser Status Attenuator s Laser Status Reports the attenuation of the addressed card Laser Temp Reports the laser temperature Board Temp Reports the system board temperature Laser Wavelength Reports a code that maps to a laser wavelength RF Level Status Parameter Lists the RF Level status of the addressed card Within Spec High Table 8 Receiver Specific Monitoring Capabilities for the Model 3000 Low Board Temp Attenuator s RF Level Status Optical Level Status Description Reports the system board temperature Reports the attenuation of the addressed card Lists the RF Level status of the addressed card Within Spec High Low Lists the Optical Status of the addressed card Low High Within Spec IOM3000 Revision 5 4 18 Model 3000 Long Range L Band Fiber Optic Link User Manual Table 9 lists the controlling capabilities of the transmitter and the receiver Table 9 Control Capabilities of the Model 3000 Transmitter and Receiver Parameter Transmitter Control Receiver Control Laser Control Decreases the output of the laser N A Attenuators ATTEN MAN FIX AGC ATTEN MAN FIX AGC Control N A N A Cc Control N A N A B Control N A N A D Control N A N A E N A Control
29. n 5 4 21 Model 3000 Long Range L Band Fiber Optic Link User Manual RMA number The criteria determining whether a product is covered under this policy are described below and RMA numbers will be issued only under these guidelines For Return Requests that do not comply with the following criteria the CSM must have approval from the VP Operations or designee prior to issuing an RMA number Products Returned for Credit Non Distributor Customers will be allowed to return product for credit only under the following conditions e Products are current standard Force products as per the price list e Products are in new unused and undamaged condition and are in the original packaging e Products were originally shipped to the customer requesting Return Authorization e Request for return is for a valid reason as determined by Force Inc e Products were shipped to the customer less than 3 months prior to return request e Customer receives proper Return Material Authorization prior to returning the product e Customer pays return freight and insurance if requested by Force Inc Customers will be issued a credit for the original selling price of the product less a 20 restocking charge after verification that the product meets the criteria as stated above Payment to customers with no outstanding bal ance will be made 30 days after requested by customer Products Returned for Repair or Replacement Force s response to a customer prod
30. n buttons 75 Ohm F Conn RF output for 75 Ohm signals 50 Ohm SMA Conn not shown RF output for 50 Ohm signals Optical In FC APC or SC APC connector Receiver optical input Backplane Connection Inserts into the backplane of the rack chassis allowing the chassis to provide power to the module Figure 4 3RU Receiver Front and Rear Panels Dimensions in parentheses are in millimeters IOM3000 Revision 5 4 Model 3000 Long Range L Band Fiber Optic Link User Manual 3RU Transmitter Module Description FRONT PANEL 3000 TRANSMITTER Thumbscrews 2 Places Used to secure the module top and bot tom to the 3RU chassis RF Test Point 20 dB from RF input Monitors the RF level See page 14 for details Install a 50 Ohm termination when not in use RF Level Tri colored LED Indicates the RF level input See LED Functions page 11 for details Laser Test Point Monitors the laser current 1 V 20 mA Nominal laser current is approximately 50 mA See page 14 Transmitter DSP Circuit Laser Temp RGB LED The LED s color indicates the laser oper ating temperature See LED Functions page 11 for details TEC Test Point Monitors the DWDM laser s TEC See page 14 DWDM versions only LNB Power Green LED When LNB power is installed this LED lights to indicate that the unit is providing 18 Volts DC See LED Functions page 11 for details Gain Adjust Up Button Adjusts t
31. nge L Band Fiber Optic Link User Manual C Inthe MAN gain mode Attenuators C and D are controlled by the user The software accepts commands from the UP and DOWN buttons and translates those commands into specific attenuator settings The user has no control of Attenuator E in the MAN mode It is set to 0 dB The receiver has three modes of operation which are controlled by the unit s rocker switch The modes are fixed gain FIX automatic gain control AGC and manual gain control MAN operation The UP DOWN buttons are used to adjust the gain settings Fixed Gain Mode In the fixed mode the gain has been set to work with a transmitter using the optimum optical modulation index OMI and zero optical loss to provide the optimum receiver operating point nominally 15 dBm output for intermodulation distortion IMD products The buttons serve as a user adjustment after the control point The UP DOWN buttons allow the user to adjust for 5 dB additional output to 10 dB less output in 0 5 dB steps Any change to Attenuator E by the user is saved to flash memory after 30 seconds of button inactivity The saved value will be restored upon a power cycle of the unit or re entering to FIX mode Automatic Gain Control AGC Mode In AGC mode the DSP controls the gain to maintain the optimum RF output for IMD products over the opti cal dynamic range of 18 dB The UP DOWN buttons operate in the same fashion as in FIX mode Any change to Attenuator
32. o power supplies A DB 25 connector on the rear of the chassis may be used for fault monitor ing These summary faults are detailed on page 19 See IOM3000C for chassis specifications and details 3RU Power Supply Description Four power supply modules may be specified for use with the 3000C 3RU Chassis The Model 3000UC NN power supply provides universal AC power to the units installed in the chassis The Model 3000UB NN sup plies universal AC power and adds SNMP or web based system monitoring capability Model 3000UE NN provides 48 Volts DC and the Model 3000UD NN is the SNMP version also providing 48 Volts DC See page 18 for details on monitoring the system via the SNMP interface IOM3000 Revision 5 4 Model 3000 Long Range L Band Fiber Optic Link User Manual Regardless of the model ordered one or two power supplies may be accommodated in the 3RU chassis The power supplies feature a green Power On LED that indicates when the chassis is receiving power A ground point on the front panel provides a common ground for all modules installed in the chassis The power supplies meet UL and CE requirements See IOM3000C for specifications and details Items Provided The following is a list of items provided with each Model 3000 Qty Mfr P N Description AR Force Inc 3000TX Transmitter Module with Factory installed Laser Cartridge AR Force Inc 3000RX Receiver Module AR Any Any Active Device Receptacle Caps 1 per stand For
33. odes ae PD RF Test Point Attenuator C Attenuator D Attenuator E 20 dB RF Level LED RF Level Red RF Input High Detector Orange RF Input Low Green RF Input in Range Figure 8 Receiver Gain and Attenuator Structure Table 3 Receiver and Attenuator Control vs Selected Mode Mode and Range Attenuator C Attenuator D Attenuator E User can adjust FIX Mode Fixed at Factory Settings Fixed at Factory Settings 5 10 dB AGC Mode Automatic Software Control Automatic Software Control a MAN Mode User Control Full Range User Control Full Range Fixed at O dB Attenuation Range 0 31 dB 0 15 5 dB 5 10 dB A Inthe FIX gain mode Attenuators C and D are set to factory determined values appropriate for 20 dBm RF input level to the transmitter and low optical loss The user still has control of Attenuator E which allows the output level to be increased by 5 dB or lowered by 10 dB B Inthe AGC gain mode Attenuators C and D are software controlled Attenuators C and D are adjusted in the receiver to try to achieve a 15 dBm RF level at the input to Attenuator E It s very important to note that the 15 dBm controlled value is not the output of the receiver it is the input of Attenuator E The user still has control of Attenuator E which allows the receiver RF output level to be increased by 5 dB or lowered by 10 dB relative to the 15 dBm controlled value IOM3000 Revision 5 4 15 Model 3000 Long Ra
34. ort 1 Product Specifications 3 Optical and RF Characteristics 3 Electrical Characteristics Note 10 4 Physical Characteristics 4 Environmental Characteristics 4 Specification Notes 4 Figure 1 Typical IMD Performance vs Fiber Length 5 Installation and Operation 6 General Installation Instructions 6 Stand alone Receiver Description 6 Figure 2 Stand alone Receiver 6 Stand alone Transmitter Description 7 Figure 3 Stand alone Transmitter 7 3RU Receiver Module Description 8 Figure 4 3RU Receiver Front and Rear Panels 8 3RU Transmitter Module Description 9 Figure 5 3RU Transmitter Front and Rear Panels 9 3RU Chassis Description 9 3RU Power Supply Description 9 Items Provided 10 Items Required Stand alone Configuration 10 Items Required 3RU Configuration 10 Inspection 10 Stand alone Module Installation 10 3RU Module Installation 10 3RU Connections 11 Stand alone Connections 11 LED Functions 11 Initial Power up 12 3RU Configurations 12 Stand alone Configurations 12 LED Power up Sequence All configurations 12 Transmitter LED Power up Sequence 12 Receiver LED Power up Sequence 12 Transmitter Operation 12 Transmitter Gain Sequence and User Controls 13 Figure 6 Transmitter Gain and Attenuator Structure 13 Table 1 3000 Transmitter and Attenuator Control vs Se lected Mode 13 Fixed Gain Mode 13 Figure 7 Model 3000 In FIX Gain Mode 13 Automatic Gain Control AGC Mode 14 Manual Gain Control Mode 14 RF Level LED and RF Test Point
35. perating range greater than 10 dBm total RF output Green Optical level is within normal operating range Receiver Optical Level Orange Optical level is below the optimum operating level Red Optical level exceeds the optimum operating level IOM3000 Revision 5 4 11 Model 3000 Long Range L Band Fiber Optic Link User Manual Initial Power up 3RU Configurations 1 Locate the chassis and units in the proper environment as described in IOM3000C 2 Clean the optical connectors Download http Avww forceinc com techbull optical connector cleaning pdf for complete instructions 3 Connect the transmitter and receiver optical ports to the optical cable 4 Connect the companion Teleport equipment as required 5 When all cable connections have been made apply power to the unit The green Power LED on the power supply front panel should light See below for the normal LED power up sequence Stand alone Configurations 1 Connect the transmitter and receiver optical ports to the optical cable 2 Clean the optical connectors Download http www forceinc com techbull optical connector cleaning pdf for complete instructions 3 Connect the transmitter and receiver optical ports to the optical cable 4 Connect the companion Teleport equipment as required 5 When all cable connections have been made connect the power connector to the power source See below for the normal LED power up sequence LED Power up Sequence All
36. rbing the signal path The RF TEST connector should be terminated with the provided 50 Ohm SMA termination at all times when it is not being used In order to monitor the signal at the RF TEST connector using 75 Ohm equipment Force Inc recommends using a male SMA to male SMA adapter Pas ternack PE9069 and a 50 Ohm SMA female to 75 Ohm F female matching pad Pasternack PE7078 The amplitude will be reduced an additional 6 dB so the test point will be approximately 26 dB below the receiver output level Pasternack Enterprises can be found at www pasternack com IOM3000 Revision 5 4 16 Model 3000 Long Range L Band Fiber Optic Link User Manual Receiver DSP Circuit The receiver uses a powerful DSP system which monitors and controls key operating parameters In addition there are switches LEDs and test points to provide the user flexibility and visual aid during setup and opera tion There are two LEDs and three test points that are useful in setting up the receiver The optical level OPT LEVEL LED gives a visual indication of the optical input by illuminating orange below 15 dBm optical input green when between 15 and 3 dBm and red above 3 dBm input The hysteresis built into the optical level LED helps prevent the LED from chattering Details of the receiver Optical Level LED modes are shown in Table 5 Table 5 Receiver Optical Level LED Status Orange Green Red Optical Level lt 15 dBm 3 dBm gt Optical Lev
37. requesting RMA numbers for any reason will be instructed as to how and where to ship the prod ucts being returned and will be directed to show the RMA number on all external packaging and documenta tion The CSM is responsible for providing any necessary instructions to the customer to ensure proper handling of the retuned material Upon receipt of the product all Force personnel are to process the return as per SP002 Handling of Customer Returns Contact the factory at USA 800 732 5252 or TEL 540 382 0462 to request an RMA Repair Service For equipment repair or technical assistance contact Customer Service 800 732 5252 USA or 540 382 0462 A Returned Material Authorization RMA number must be issued by Customer Service before the return of a failed unit Units should be returned in their original shipping carton if available Always include a complete description of the failure or observed anomalies and include the unit s model number and serial number which are located on the product label Shipping and Handling Precautions The units are in general very rugged and can withstand the stresses of most shipping and handling circum stances However the following precautions should be taken 1 When the units are shipped they should be wrapped in a protective material such as bubble wrap to pro tect against excessive jarring and to prevent damage to the external finish of the units Always use packing material to sep
38. return for rework or repair in accordance with Force s warranty policy Active Out of Warranty Force will accept return of product under this category as long as the sale of the product occurred less than five 5 years prior to the return request The product serial number should aid in determining the age in cases where information is not in the data base Rework or repair will be in accordance with Force s warranty policy and will include an evaluation charge which will be quoted to the customer prior to the return of the product The evaluation charge is 20 of the current list price of the product or a minimum of 250 whichever is greater The customer will either need to provide a purchase order number with approved credit or a credit card number before receiving an RMA number Force cannot guarantee its ability to repair or rework the IOM3000 Revision 5 4 22 Model 3000 Long Range L Band Fiber Optic Link User Manual product If costs to repair the product exceed the evaluation charge the customer will be notified of such charges and instruction to proceed with repairs will be indicated either by a P O number or credit card autho rization Obsolete Product Out of Warranty Force is not obligated to accept requests for product under this category The CSM with prior approval from Operations will be responsible for approving return requests for products falling under this category Receiving an RMA for Returns Customers
39. spol aa O er roau Gain Mode Short Fiber Run Gain Mode lt 2km NOTES 1 The FIX gain mode is recommended for short fiber runs only lt 2 km 2 The receiver RF output level can be adjusted up by 5 dB and down by 10 cB Figure 7 Model 3000 In FIX Gain Mode IOM3000 Revision 5 4 13 Model 3000 Long Range L Band Fiber Optic Link User Manual Automatic Gain Control AGC Mode In the AGC mode the DSP controls the RF drive to maintain the laser optimum OMI by controlling the gain of the device The user can adjust the gain over a dynamic range from the set point 5 dB to 10 dB in 0 5 dB increments When the mode is changed from automatic gain control AGC to manual MAN the attenuator settings that are determined by the DSP in AGC mode are used as the initial settings in MAN mode This enables the user that wants to use MAN mode to let the DSP determine the optimal settings for the current RF input Manual Gain Control Mode In MAN mode the user controls the gain by activating the UP DOWN buttons Each activation of the UP DOWN buttons will raise or lower the gain by 0 5 dB An RF LEVEL LED will light orange when the RF level is low green when the RF level is in the normal operating range and red when the level is too high in this case the laser protection circuits activate The protection includes disabling amp A3 in Figure 6 page 13 When the RF Level LED blinks green the laser OMI exceeds the recommended value To set t
40. t 20 dB from output connection Monitors the RF level See page 14 for details Terminate with provided 50 Ohm termination when not in use RF Level Tri colored LED Indicates the receiver RF output level See LED Functions page 11 for details AGC Detect Test Point Monitors the RF level with an optimum setting of approximately 1 7 Volts DC See page 14 Optical Level Tri colored LED Indicates the receiver optical sig nal operating parameters See LED Functions page 11 for de tails Photo Test Point Indicates the received optical signal level over a5 V range See Receiver DSP Circuit page 17 for details Gain Adjust Up Button Adjusts the link gain up When this button is held down the gain will increase 2 dB per second With each azr ars BACK PANEL momentary push of the button the gain will increase 0 5 dB Gain Adjust Down Button Adjusts the link gain down When this button is held down the gain will decrease 2 dB per second With each momentary push of the button the gain will decrease 0 5 dB Gain Switch Three Position Switch When set to FIX the unit s gain is fixed at an optimum level for the case of low optical loss and a RF Input level of 20 dBm When set to ACG the unit is utilizing its automatic gain control This maintains optimum per formance across the allowable input range When set to MAN the gain can be adjusted over a range of 46 5 dB using the Up and Dow
41. t the base of the module If the unit is placed in a location where tempera tures may exceed 38 C 100 F a good heat sink should be secured The use of silicone thermal pads is recom mended between the module and the plate to maximize heat transfer 3RU Module Installation The modules come pre installed in the 3000 chassis See IOM3000C for chassis details Make sure that ade quate space is available for cabling and safe access for inspection or troubleshooting When replacing modules align the top and bottom of the module with the module guides in the 3RU rack Push the module firmly to engage the rear power plane connector IOM3000 Revision 5 4 10 Model 3000 Long Range L Band Fiber Optic Link User Manual 3RU Connections Connector Name Location Connector Type Transmitter Function Receiver Function 75 Ohm Rear of Module F Type 75 Ohm RF Input 75 Ohm RF Output 50 Ohm Rear of Module SMA 50 Ohm RF Input 50 Ohm RF Output Optical Out Rear of Tx Madule SC APC or FC APC Optical Output N A Optical jen ores SC APC or FC APC N A Optical Input Redes m ered SMA RF Level Monitor RF Level Monitor Stand alone Connections Connector Name Connector Type Transmitter Function Receiver Function Power 5 Pin Weather Tight Power Input Fault Summary Power Input Fault Summary 75 Ohm F 75 Ohm RF Input 75 Ohm RF Output 50 Ohm SMA 50 Ohm RF Input 50 Ohm RF Output Optical Out SC
42. tical power at the receiver Check power at the transmitter If there is power at the transmitter ver ify proper fiber is connected to the receiver and ensure the integrity of the fiber No signal out of receiver RF Level LED is unlit Verify the input signal at the transmitter The transmitter RF Level LED should be green If the LED is dark the signal input has fallen outside of the 1 25 dB range If the transmitter RF Level LED is green the receiver may be in need of repairs Contact the factory for additional instructions Signal out of receiver is distorted Verify input signal at the transmitter The transmitter RF Level LED should be green A larger signal will cause distortion and may destroy the transmitter Verify fiber size Use single mode fiber only Cleaning If the link needs to be cleaned avoid the use of all solvents and use low pressure clean air to remove loose dirt Use low pressure clean air to clear the connectors of any debris Dirty or scratched connector end faces will greatly reduce the unit s performance Do not try to use fluids or high pressure air to clean out the optical ports Foam tipped swabs such as the 2 5 mm Mini Foam Swab offered by Fiber Instrument Sales P N F1 0005 may be saturated with denatured alcohol and inserted into the optical port for cleaning DO NOT INSERT A DRY SWAB INTO THE OPTICAL PORT AS THIS MAY DAMAGE THE
43. uct return request will be based upon whether or not the product is still part of Force s standard product offering and whether or not the product is still under warranty A product will be considered active if it is currently part of Force s standard product offering Active products are denoted in Force s current price list Obsolete products are not considered active A product is considered under warranty in accordance with Force Inc Product Warranty Prior to receiving an RMA number the customer will be asked to discuss the reason for the return with Tech nical Support to try to resolve the problem This discussion will be documented to aid with troubleshooting and repair of the product Any detail the customer can provide will expedite the process once the product is received The criteria denoted above will cause any incoming returns to fall into one of the following categories A The product is currently active and is under warranty B The product is currently obsolete but is still under warranty C The product is active but out of warranty D The product is obsolete and out of warranty Active Product Under Warranty Force will honor the warranty for these products As a result product s should be accepted upon return for rework or repair in accordance with Force s warranty policy Obsolete Product Under Warranty Force will honor the warranty for these products As a result product s should be accepted upon
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