LP-OLAT & LP_OLAR Manual
Contents
1. 75 for 75 Ohm F connector RECEIVER PART NUMBERS LP OLAR X4000 75 FA LaserPlus Advanced L Band Receiver 4GHz PIN Detector 75 Ohm F Connector FC APC LP OLAR X4000 75 SA LaserPlus Advanced L Band Receiver 4GHz PIN Detector 75 Ohm F Connector SC APC LP OLAR X4000 50 FA LaserPlus Advanced L Band Receiver 4GHz PIN Detector 50 Ohm SMA Connector FC APC LP OLAR X4000 50 SA LaserPlus Advanced L Band Receiver 4GHz PIN Detector 50 Ohm SMA Connector SC APC LP OLAR X4000S 75 FA LaserPlus Advanced L Band Receiver 4GHz APD Detector 75 Ohm F Connector FC APC LP OLAR X4000S 75 SA LaserPlus Advanced L Band Receiver 4GHz APD Detector 75 Ohm F Connector SC APC LP OLAR X4000S 50 FA LaserPlus Advanced L Band Receiver 4GHz APD Detector 50 Ohm SMA Connector FC APC LP OLAR X4000S 50 SA LaserPlus Advanced L Band Receiver 4GHz APD Detector 50 Ohm SMA Connector SC APC 025 000580 Rev X1 www olsontech com 212. B m zd n H ow Figure 10 shows how the overall gain of the Advanced L Band link varies as the transmitter and receiver gain and optical loss vary For simplification the horizontal axis shows the total of the transmitter and receiver gain The RF gain changes 2dB for each 1dB of optical loss The curves shown in Figure 10 are for a normal sensitivity PIN based receiver The curves in Figure 10 will all shift upward about 7dB to 20d B when a high sensitivity APD based receiver is used The variation depends on the receiver optical input level See Figure 19 for more de tails 025 000580 Rev X1 www olsontech com 12 35 EE EG od Optical Loss 20 End ti End Link Gain dB n 45 0 10 20 30 40 50 Tx Rx Gain Setting dB Figure 10 Advanced L Band Link Gain NOISE FIGURE Like link gain noise figure is affected by the transmitter and receiver gain settings as well as the optical loss The relationship is somewhat more complex however Figures 11 and 12 show how the noise figure varies at 3dB optical loss and 15dB optical loss 3dB Optical Loss Constant Noise Figure Contours dB 15dB Optical Loss Constant Noise Figure Contours dB 0 Receiver Gain Setting dB Receiver Gain Setting dB 20 25 20 15 10 2 0 a 20 15 10 i Transmitter Gain Setting dB Transmitter Gain Setting dB Figure 11 Noise Figure at 3dB Loss Figure 12 Noise Figure at 15dB Loss 025 000580 Rev X1 www olsont
3. SMF 28 or Equiv gt 55dB SC APC Standard FC APC Optional 1270 1610nm 15 to 3dBm 22 to 3dBm D5 C4 DFB DFB CWDM 5dBm 4dBm 1310nm ZZ 2dB to 20dB 1dB to 20dB 8dB to 27dB 7dB to 26dB EX DFB DWDM 10dBm yY 7dB to 25dB 13dB to 32dB zz 47 49 51 53 57 59 61 for each of the available ITU grid CWDM wavelengths yy 22 23 45 46 for each of the available ITU grid DWDM wavelengths Availability of some DWDM channels 1s limited at times 025 000580 Rev X1 www olsontech com 18 S1 S2 J1 J2 J3 dd D1 D2 D3 S1 S2 J1 J2 J3 J4 D1 D2 D3 CONNECTIONS amp CONTROLS TRANSMITTER Refer to Figure 1 for clarification of terminology Hexadecimal rotary switch Changes the gain in 1dB steps from 0 dB to 15dB The 0 setting corresponds to OdB gain The F setting corresponds to 15dB gain See Table 2 for more details The bottom position switches the gain from HI to LO by switching in OdB or 10dB at tenuation See Table 2 for more details A ground point for a Digital Volt Meter DVM probe Optical Output Laser Power test point for a DVM probe Output is 1 Volt mW RF Input 50 Ohms or 75 Ohms Located on back of the unit Laser Power Green when laser output is OK Dark when laser fails RF Level Red if RF level is too high Yellow if RF level is too low and Green if RF level is within normal limits Laser Temperature DWDM Laser Models Only Green in
4. UDI j l UWIDIY oo9udo LS USMS IDUUI9SPDXSH Joy luu Jeyijduy By zs m AS LLOZ AeW v J9AI928M pueg 1 YV1O d71 wesbeig 12019 JOJO UUOD SISSDUO GP eq JOHUOIN BAS PLYAO 18A91 pLUdO er u eq Figure 6 Receiver Block Diagram 10 www olsontech com 025 000580 Rev X1 RF PERFORMANCE The specifications are cited for gt 55dB optical return loss Figures 8 and 9 show the typical frequency response of the Advanced L Band link The transmitter and receiver gain settings have little effect on the gain flatness Response 2dB per Division 11 0 400 800 1200 1600 2000 2400 2800 3200 3600 4000 Frequency MHz Figure 8 Typical Link Tx Rx Frequency Response ob Pe EEN LI AE ME EEN EE EE PN CL LL EEN EEN EEN EE Gain dB N de TEIT le EN EN EN EE EN EEN EN N EN EN EN EN ENE 0 EN EN EE EE EE EEN EN EN EE EE EE 0 10 20 30 40 50 60 70 80 90 100 Frequency MHz Figure 9 Low Frequency Response 025 000580 Rev X1 www olsontech com 11 LINK GAIN The overall gain of the Advanced L Band link is affected by the gain setting of the transmitter the gain setting of the receiver and the optical loss Table 2 shows how the gain of the trans mitter and receiver can be set Table 2 Transmitter and Receiver Gain Settings Setting Setting Gain Setting Setting Gain of wm op o m ia e m m e ME N o ME N
5. ode rd oe ed en da nent it EL da EU EK a Dao en D ont 13 TRANSMITTER 8 RECEIVER 1dB COMPRESSION PERFORMANCE 14 TRANSMITTER amp RECEIVER IP2 amp IP3 PERFORMANCE enne 15 TRANSMITTER 8 RECEIVER RF LEVEL DETECTOR PERFORMANCE 16 OPTICAL PERFORMANCE 8 0 ti GN eN eN bw EHE VN Ge ween ed SEN Ge GE GN EE E DES PO GE KEN ei die 18 CONNECTIONS AND CONTROLS TRANSMITTER oes sees ees eek ee Re Ke Ke REK EE N EE KERK EE ee 19 CONNECTIONS AND CONTROLS RECEIVER oos ees een eek eek eek eek ee ee Ek eke ke ke Ke ke E ee ee 19 NS TALLA HON ese ei ei E aes du dv web de dus dre eee tue 20 Opucal COMME LORS DE ee ath De ae n had li De bis De le de 200 Cleaning Optical Connectors sees sesse ee ee ee ee ee ek ee ek ee ee ee ne ee ee ee ns 200 ke ao bb a tr t tk OE EE A eo N 200 ORDERING INFORMATION 1 1 ees eek ek eek eek eek eek EE KEER EER REK EER EER KERKE RE RE REK AE KEER AAK EER AAK EA ee 21 Transmitter Part Numbers iii heme ese sse inse esse nens 21 Receiver Part Numbers see see see see ee ee ee ee hehe sese se ne ee ee esse ee ee ee ee ee 21 025 000580 Rev X1 www olsontech com 2 SAFETY Safety Precautions The optical emissions from the units are laser based and may present eye hazards if 1mprop erly used NEVER USE ANY KIND OF OPTICAL INSTRUMENT TO VIEW THE OP TICAL OUTPUT OF THE UNIT Be careful when working with optical fiber
6. transmitter optical output power using a Digital Volt Meter DVM J1 is a ground J3 gives an indication of the laser power The scale factor is 0 1 V mW J2 is the optical output D1 indicates that the Laser Power is OK It will be green if the laser control circuitry is be having normally If the laser or control circuitry fails then D1 will turn red D2 indicates the input RF Level Figure 2 indicates the thresholds at which D2 will switch D2 will be yellow if the RF level is below the low threshold red if the RF level is above the high threshold and green if the RF level is between the low and high thresholds For most applica tions if D2 is green then the RF level is in the optimum range J4 is the RF Input It is a high frequency F Type Female 756 Connector Alternately a 50Q SMA connector can be provided D2 LED Behavior RF Level dBm 0 5 10 15 20 29 Transmitter Gain Setting dB Figure 2 RF Level D2 Behavior 025 000580 Rev X1 www olsontech com 6 RECEIVER DESCRIPTION The OLAR L Band Receiver can handle 10MHz to 4 000MHz RF signals The receiver includes a 25dB digital gain control Optical input power ranges from 15 to 3dBm in the wavelength range of 1270 1610nm The receiver offers high sensitivity for an expanded optical link budget from 22dBm to 3dBm Built in test points LED indicators and alarms allow the receiver to be easily set up and maintained LP OLAR Optical Input D 3 Optical
7. Dias INC LaserPlus Model LP OLAT LP OLAR Advanced L Band Series 10 4 000 MHz OPERATING MANUAL LP OLAT LP OLAR Optical Optical Laser puca Opti Input Es ptical Laser n a ower RF e Level Opt Power WimW Mute E OfflOn Gain Ja yo Loi 24926 Highway 108 Sierra Village CA 95346 Phone 800 545 1022 Fax 209 586 1022 025 000580 Rev X1 E Mail sales 20lsontech com 05 05 11 TABLE OF CONTENTS Table oT CODIODIS aio OE OE gn EE OO EE OE OT 2 siet tj tj th w OE N EE OE EE EE OE EE 3 Safety died de EE EE EO OR n ak N NE 3 Laser Sale PrO COU sins ip NR N gin ak san cesa eus EEN Ee ea cea en Ee Ke n l a ee 3 GENERAL FEATURES is eise ede N dee wf ee kit eN RO ERGE WENE a ee oe 4 TRANSMITTER DESCRIPTION cccccccsscsscnsceecnecnecnecnscneeneeneeeceeeseeseeseeseeseuseuusaueueenseneenes 5 Transmitter Control Overview sesse see ee ee ee eee ee ee ee ee ee nenne ee ee ee ee ee 5 RECEIVER DESCRIP HON ia esse esse ES ee ee ee ee ee ie ie N He DE UE ie SUE 7 Receiver Control OVErvie Ve ES Ge GE Ga er ae ak kar ee ask e este 7 TRANSMITTER BLOCK DIAGRAM esse nna anana ek asa asa Ke Ke Ke REK EE N AE KAAK EER AAR RA KEER EER EER REK REK Re Ee EE 9 RECEIVER BLOCK DIAGRAM a kt We ew ee wee ni 10 RF PERFORMANCE ccccsecseccecceccecceccecceeceecuecuecuecnscuscuecuecneeneenecueccecceeceeceeceecuecuecueenecens 11 dj GAIN ME EE EE tenn EE EE EE N 12 NOISE FIGURE issie eed ed
8. Level D2 Power o Di Level Opt Power J3 1ViImW S2 Mute ai a ottion Gain p Lo Hi ozs Figure 3 Annotated Front amp Rear View of Receiver RECEIVER CONTROLS OVERVIEW Figure 3 shows the front and rear panels of the receiver On the front of the transmitter the user can change the gain of the transmitter over a 25dB range using S1 amp S2 Higher gain allows the transmitter to be used with lower level RF sig nals and vice versa S1 is a 16 position hexadecimal rotary switch The 0 setting 1s mini mum gain and the F setting is the maximum gain Each position is equal to a 1dB gain change So the gain of the F setting compared to the gain of the 0 setting will be 15dB higher The bottom switch of S2 is a high low gain setting When it is in the Lo position the incremental gain is OdB When it is Hi position the gain increases by 10dB To set the 025 000580 Rev X1 www olsontech com 1 transmitter for minimum gain set S1 to 0 and the bottom switch of S2 to the left To set the transmitter for maximum gain set S1 to F and the bottom switch of S2 to the right The top switch of S2 also allows the final RF amplifier to be switched on or off Mute When the receiver output is Muted the RF output level typically drops by 30dB Note that the RF Level detector discussed later still functions as though the receiver is not muted J1 amp Ja allow easy
9. P OLAT Transmitter carries 1OMHz to 4 000MHz RF signals over single mode optical fiber Model LP OLAT includes an adjustable 25dB digital gain control Laser power options include 4dBm 2 5mW DFB CWDM 5dBm 3mW DFB or 10dBm 10mW DFB DWDM Built in test points LED indicators and alarms allow the transmitter to be easily set up and maintained LP OLAT Optical D3 lid Input Temp r se 7 in as j Lo Hi Figure 1 Annotated Front amp Rear View of Transmitter TRANSMITTER CONTROLS OVERVIEW On the front of the transmitter the user can change the gain of the transmitter over a 25dB range using S1 amp 2 Higher gain allows the transmitter to be used with lower level RF sig nals and vice versa S1 is a 16 position hexadecimal rotary switch The 0 setting is mini mum gain and the F setting is the maximum gain Each position is equal to a 1dB gain change So the gain of the F setting compared to the gain of the 0 setting will be 15dB higher The bottom switch of S2 is a high low gain setting When it is in the Lo position the incremental gain is OdB When it is Hi position the gain increases by 10dB To set the transmitter for minimum gain set S1 to 0 and the bottom switch of S2 to the left To set the transmitter for maximum gain set S1 to F and the bottom switch of 82 to the right 025 000580 Rev X1 www olsontech com 5 J1 amp Ja allow easy measurement of the
10. dicates good red bad CONNECTIONS amp CONTROLS RECEIVER Refer to Figure 3 for clarification of terminology Hexadecimal rotary switch Changes the gain in 1dB steps from 0 dB to 15dB The top position is used to MUTE the RF output by removing power form the final am plifier stage The bottom position switches the gain from HI to LO by switching in OdB or 10dB attenuation A ground point for a Digital Volt Meter DVM probe Optical Input Optical Input Power test point for a DVM probe Output is 1 Volt mW RF Input 50 Ohms or 75 Ohms Located on back of the unit RF Level Red if RF level is too high Yellow if RF level is too low and Green if RF level is within normal limits Power indicator Green when normal Optical Input Level Red if RF level is too high Yellow if RF level is too low and Green if level is within normal limits 025 000580 Rev X1 www olsontech com 19 INSTALLATION Optical Connectors There are many optical connectors on the market There are also different ways the end of the optical connector is polished typically Flat and Angle The L Band link is only offered with SC APC and FC APC types of connectors Angle Polish Connector One of the most common errors encountered in the field is the use of the wrong type of connectors The most common is using SC PC or SC UPC Flat with SC APC Angled The connectors will fit together but the optical loss will be high performance is totally unpredic
11. eceiver RF Level Detector for a normal sensitivity PIN based receiver To use the chart measure the voltage out of the RF Level Detector then use the chart to estimate the total RF Level out of the receiver Contact the factory for the response of a high sensitivity APD based rteceiver Output Volts 50 45 40 35 30 25 20 15 RF Output Level dBm Figure 18 Receiver RF Level Detector Behavior 025 000580 Rev X1 www olsontech com 16 Pd m TD D cm tc Go gt ke x E o Na a TT PTT N LLLLLLLLLLLEN LETT ETT TT TTT a 26 24 22 20 18 16 14 12 10 8 Rx Optical Input dBm Figure 19 Gain Advantage APD vs PIN Receivers al x ka HYE els gt TD w Aa se 2 a MEI in 30kHz BW dB D oO yo 26 24 22 20 18 16 14 12 10 8 6 Rx Optical Input dBm 2 IN Figure 20 SNR Advantage APD vs PIN Receivers 025 000580 Rev X1 www olsontech com 17 Item Optical Fiber Tx Rx Optical Return Loss Tx Rx Optical Connector Rx Wavelength Normal Sensitivity PIN based Rx Optical Input Power High Sensitivity APD based Rx Optical Input Power Tx Model Tx Laser Type Tx Output Power Tx Wavelength Tx Normal Sensitivity Rx Link Optical Budget Tx High Sensitivity Rx Link Optical Budget TABLE 3 OPTICAL PERFORMANCE D4 DFB 4dBm 1550nm 1dB to 19dB 7dB to 26dB Specification Single Mode 9 125um Corning
12. ech com 13 TRANSMITTER amp RECEIVER 1dB COMPRESSION PERFORMANCE Figures 13 and 14 show the 1dB compression behavior of the transmitter and receiver In Figure 13 it can be seen that the 1dB compression behavior of the transmitter is highly dependent on the gain setting of the transmitter The Figure shows the behavior at Maximum Gain 25dB Maximum 10 Gain 15dB and Minimum Gain 0dB The corresponding 1dB compression points are 12 5dBm 2dBm and 12 5dBm varying almost exactly dB per dB as the gain changes TAN CNET BEA ER Gain dB NN EE EER MEEN LLLI 30 25 20 15 10 5 0 9 10 RF Input Level dBm Figure 13 Transmitter 1dB Compression Behavior Figure 14 shows the 1dB compression behavior of the receiver output The test conditions are minimum transmitter gain maximum receiver gain and 3 5dBm optical input The 1dB compression point is 11 7dBm Gain dB 8 0 9 0 10 0 11 0 12 0 Rx RF Output Level dBm Figure 14 Receiver 1dB Compression Behavior 025 000580 Rev X1 www olsontech com 14 TRANSMITTER amp RECEIVER IP2 amp IP3 PERFORMANCE Figure 15 shows the IP2 and IP3 performance of the transmitter The test conditions were with maximum transmitter gain minimum Rx gain and OdBm receiver optical input The dark blue dark green and red lines are actual data The light blue light green and yellow lines are extrapolated Under these conditions the IP2 is 6 5dBm and the IP3 is 9 5dBm N
13. measurement of the transmitter optical output power using a Digital Volt Meter DVM J1 is a ground J3 gives an indication of the Optical Input Power The scale factor is 1 0 V mW J2 is the optical input D1 indicates the RF Output Power level D2 indi cates the input RF Level Figure 2 indicates the thresholds at which D2 will switch D2 will be yellow if the RF level is below the low threshold red if the RF level is above the high threshold and green 1f the RF level is between the low and high thresholds For most applications if D2 is green then the RF level is in the optimum range Table 1 shows the behavior of the Re ceiver D2 LED J4 is the RF Output It is a high frequency F Type Female 75 Connector Alternately a 50Q SMA connector can be provided Table 1 Receiver D2 LED Behavior RF Output Level D2 LED Color gt 37dBm and lt 22dBm reen Red Note This holds true even if the Receiver output is Muted 025 000580 Rev X1 www olsontech com 8 JOMOd 18507 JJnO4 18507 SAS1 j l uno j JOLOSUUOD SISSOUD AG Gr Nb oinjoJeduue 10 181007 LS USMS DWIDEBPOXEH Hol S 4 ni doo OH K OJJUO UPS 9 1OMOd OSD Ac ende Jeyijduav JOM iil Jeou Ol u NO qH LLOZ AeW Jepiwsuesj pueg 1 1V710 d71 ureuBeiq 490 g VAN e NAL da Figure 5 Transmitter Block Diagram www olsontech com 025 000580 Rev X1 rf punog La 98A3 da a vr indino Jy ISAS j l
14. of the LNB and connect the LNB output to the RF input of the transmitter Adjust the transmitter and receiver gain as required Connect the RF out of the receiver to the distribution amplifier or TV set top receiver Apply power to both modules the system should now be operational 025 000580 Rev X1 www olsontech com 20 ORDERING INFORMATION TRANSMITTER PART NUMBERS LP OLAT X4013 D5 xx SA Transmitter 4GHz 1310nm 5dBm 3mW DFB Laser SC APC LP OLAT X4013 D5 xx FA Transmitter 4GHz 1310nm 5dBm 3mW DFB Laser FC APC LP OLAT X4015 D4 xx SA Transmitter 4GHz 1550nm 4dBm 2 5mW DFB Laser SC APC LP OLAT X4015 D4 xx FA Transmitter 4GHz 1550nm 4dBm 2 5mW DFB Laser FC APC LP OLAT X40zz C4 xx SA Transmitter 4GHz CWDM Wavelengths 4dBm 2 5mW DFB Laser SC APC LP OLAT X40zz C4 xx FA Transmitter 4GHz CWDM Wavelengths 4dBm 2 5mW DFB Laser FC APC LP OLAT X40yy E10 xx SA Transmitter 4GHz DWDM Wavelengths 10dBm 10mW DFB Laser SC APC LP OLAT X40yy E10 xx FA Transmitter 4GHz DWDM Wavelengths 10dBm 10mW DFB Laser FC APC NOTES 1 The zz in the CWDM number may be 47 49 51 53 55 57 59 61 for each of the eight available ITU grid CWDM wavelengths 2 The yy in the DWDM number may be 22 23 45 46 for each of the available ITU grid DWDM wavelengths Note Availability of some DWDM channels is limited at times 3 The xx in the part number is the impedance xx 50 for 50 Ohm SMA connector xx
15. ote that these will increase dB per dB as the transmitter gain is lowered Level dB 20 18 16 14 12 10 8 6 4 2 RF Input Level dBm Figure 15 Transmitter IP2 amp IP3 Behavior Figure 16 shows the IP2 and IP3 performance of the receiver The test conditions were with minimum transmitter gain maximum Rx gain and 3 5dBm receiver optical input The dark blue dark green and red lines are actual data The light blue light green and yellow lines are extrapolated Under these conditions the IP2 is 20dBm and the IP3 is 12dBm Note These values are read off of the vertical axis These will not change significantly as the receiver gain changes Rx Output Level dB 50 25 00 25 50 75 100 125 15 0 17 5 20 0 Tx RF Input Level dBm Figure 16 Receiver IP2 amp IP3 Behavior 025 000580 Rev X1 www olsontech com 15 TRANSMITTER amp RECEIVER RF LEVEL DETECTOR PERFORMANCE Figures 17 and 18 show behavior of the transmitter and receiver RF Level Detectors Figure 17 shows the behavior of the transmitter RF Level Detector at Maximum Gain 25dB Maximum 10 Gain 15dB and Minimum Gain 0dB To use the chart first determine the transmitter gain and measure the voltage out of the RF Level Detector Then use the chart to estimate the total RF Level in to the transmitter Output Volts 45 35 25 15 5 5 RF Input Level dBm Figure 17 Transmitter RF Level Detector Behavior Figure 18 shows the behavior of the r
16. s Fibers can cause painful injury if they penetrate the skin Laser Safety Procedures ALWAYS read the product data sheet and the laser safety label before powering the product Note the operation wavelength optical output power and safety classifications If safety goggles or other eye protection are used be certain that the protection is effective at the wavelength emitted by the device under test BEFORE applying power ALWAYS connect a fiber to the output of the device BEFORE power is applied Power must never be applied without an attached fiber If the device has a connector output attach a connector that 1s connected to a fiber This will ensure that all light is confined within the fi ber waveguide virtually eliminating all potential hazard NEVER look at the end of the fiber to see if light is coming out NEVER Most fiber optic laser wavelengths 1310 nm and 1550 nm are totally invisible to the unaided eye and will cause permanent damage Shorter wavelengths lasers e g 780 nm may be visible and are very damaging Always use instruments such as an optical power meter to verify light output NEVER NEVER NEVER look into the end of a fiber on a powered device with ANY sort of magnifying device This includes microscopes eye loupes and magnifying glasses This WILL cause a permanent and irreversible burn on your retina Always double check that power is disconnected before using such devices If possible completely disconnect
17. table and both connectors may be permanently damaged Cleaning Optical Connectors Fiber optic connectors should be clean and capped so one can usually remove the cap and make the connection without cleaning the connector If there 1s any doubt 1t 1s good practice to clean the optical connectors before making the connection ALWAYS be certain that the fi ber optic connectors have no light before cleaning or inspecting Once the connection 1s made there should be no need clean the connector as long as the connector remains connected Use caution when handling the connectors Any grease from your finger scratches or small pieces of dust or dirt can strongly affect performance To clean a connector use a lint free wipe such as Kimwipes or cotton swab moisten with alcohol and gently wipe the tip of the connec tor Let the connector air dry completely or use dry compressed air to dry When making the connection be sure the key 1s aligned with the bulkhead connector With SC connectors gently press in until the connector clicks in to place Mounting It is suggested that the modules be mounted with the RF and Optical connectors mounted down to prevent moisture from entering the connectors For outdoor or high humidity envi ronments always use a watertight enclosure Connect the optical fiber to both the transmitter and receiver Insure the optical loss to the receiver 1s less than the maximum allowed Verify the proper RF level out
18. the unit from any power source If you have questions about laser safety procedures please call Olson Technology before powering your product 025 000580 Rev X1 www olsontech com 3 GENERAL FEATURES The LaserPlus LP OLAT Advanced L Band Transmitters and the LaserPlus LP OLAR Ad vanced L Band Receivers form a feature rich L Band Fiber Optic Distribution System in a very compact package The wide bandwidth as low as 1OMHz and as high as 4 000M Hz al lows for a wide variety of communications applications including L Band satellite antenna remoting trunking radio telemetry tracking and time and frequency reference distribution The extended frequency range to 4 000M Hz and digital gain adjustment range of 25dB in the transmitter and a digital gain adjustment range of 25dB in the receiver allow these products to accommodate additional transponders including European and multiple satellite commu nications applications The enhanced bandwidth also facilitates stacked LNB applications to accommodate additional transponders containing enhanced DBS services HDTV local channels etc over single mode fiber for DBS distribution CONFIGURATION The transmitter and receiver are housed in rugged compact standalone enclosures that plug into the Olson Technology Inc LaserPlus platform Up to fifteen modules can be plugged into a single LaserPlus chassis LP DLAR 025 000580 Rev X1 www olsontech com 4 TRANSMITTER DESCRIPTION The L
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