MX862R-2 Manual
Contents
1. aC MX 862R 2 maygcom r ma com HFC Optical Receiver MX862R 2 USER MANUAL Provided by Mega Hertz 800 883 8839 info go2mhz com www go2mhz com CONTENT 1 0 PRODUCT SUMMARY uscccccscscscssseeeeseeeeeeseeeseeeeeeeaeasaseseseeeeenseeeeeeneaeaeas 3 2 0 INSTALLATION iroi roenan ea eaaa aa Ea aaa 3 2 17 Unpacking riesi eirian ae DE E AAEE AAE DEE TAEA RNa es 3 2 2 Receiver Mounting and Power Connection s ssssssrsssrrrssrrrserrnsrrresrrnns 3 2 3 RF CONNGCUON srira nanara 3 2 4 Optic CONNECTION keere aa E AAT AREA AEA Aaa aa Aaa aA aA 4 3 0 RECEIVER CONTROLS INDICATORS AND ALARMS cscseseseseeeeeeeees 5 3 1 The operation of the panel cccccccccceseeseeeeeeeeeeeeeeeeeeeeeeeeeeaetaetaneeaeggs 5 4 0 ANNOUNCEMENTS ise icccss eccccctcccanesedecicecscecies csc tiiecteconcebenteiscvesertedsiwes 7 5 0 ERROR AND REMEDY uccccscscscseeeeeeeeeeeeeeeeeeeeeneneaeeseaeseeeeeneaseeneaeaeasanaas 8 6 0 SPECIFICATIONS wicsccsccccscscscceccvececceses occesesedsecsccevesecasecececseseeeceseees 8 9 7 0 GUARANTEE AND REPAIR ITEMS cececscscscseseeeeeseeeeeeeseseeeeeeeeeeeaeas 10 Page 2 of 10 1 0 2 0 PRODUCT SUMMARY The MX862R 2 CATV Fiber Optic receivers are designed high reliability with optical AGC high level RF output ease of use easy to read LED indicators and suitable for high level applications INSTALLATION 2 1 Unpacking Inspect the shipping boxes for any obvious damage2. STATUS to save amended IP 192 168 000 016 The default control mode is AGC When the OMI modulation menu displays RF Mode AGC press A key and the menu will display RF Mode AGC AGC flicker Then press W the menu will display RF Mode Manual and the change from AGC to MGC has been completed If you want to change the current control mode back into AGC press A key when the current menu displays RF Mode Manual then the menu will display RF Mode AGC AGC flicker Then press Y the change from Manual to AGC will be complete and the menu will display RF Mode AGC Page 6 of 10 4 0 ANNOUNCEMENTS A Received power the received power should be between 12 2dBm 1 to 0 is optimal received power too low also may continue to operate but CNR will rapidly deteriorate Received power too high will cause CTB CSO deterioration When received power gt 3dBm 2mW may damage optical receive module B RF output level optical receiver s RF output level related to receive power and optical receiver s RF drive level that is modulation coefficient Received power to increase or reduce 1 dB optical receiver of the RF output level would increase or decrease 2 dB 1 2 Optical receiver RF drive level to increase or reduce 1 dB optical receiver RF output level would increase or decrease 1 dB 1 1 When received power is 2dBm RF output level is 35dBmV 1dB RF working output level can modulate through ATT1 Note for high o
3. all the fiber optic connectors need protective covers during transportation In order to ensure the insertion loss amp return loss the end face of the fiber optic connector is polished Connector should be clean Dust will affect the transmission quality When not using the fiber optic connector please place the protection cover over the connector Clean all fiber patch cords before connecting to the receiver Cleaning Guidelines Fiber Patch cord connectors Remove the fiber connectors dust cap and wipe the fiber connector tip with a dry lint free cloth such as Kim wipes Inspect for scratches or debris on connector surface by using a microscope ie 100x or 200x Fiber Bulkhead connectors Compressed air may be used to clean fiber bulkhead connectors Use compressed air with at least the following specifications Non residue inert gas for precision dust removal Ultra filtered to lt 0 2 microns Recommended for optical systems Using compressed air as listed above remove the bulkhead dust cover and hold the can of compressed air about 6 inches from the connector After spraying a few short bursts into the bulkhead the connector should be clean and ready for connection If compressed air is not available the receiver fiber bulkhead connector may be cleaned by a 2 5 mm cotton swap or connector plate may be removed to clean the internal fiber patch cords Slowly remove the optical connector plate from the rear
4. d When BGD702 working in high current 435mA such as the units installation of grounding is poor electrostatic may lead to damaged module may need to be returned for factory maintenance c Check FL EQ ATT1 or red RF adjustment knob on top of the unit s chassis 3 RF output level too high causing the distortion index to be deteriorated a Check received optical power to determine if too high such as gt 3dBm you should install an optical attenuator b Check the head end optical receiver s RF drive level whether too high Optical receiver s RF drive level determines the modulation it also determines the system index CNR CTB CSO Designing should meet optical receiver manufacture requirement c Manufacture presented RF drive level Si when in full channel NTSC 77ch PAL D 59ch When system transfer N channel practice RF drive level SiN should amend as follows SiN Si 10Lg 77 N NTSC 77ch SiN Si 10Lg 59 N PAL D 59ch d If received optical power and optical receiver RF drive level are all normal optical receiver RF output power can modulated through ATT1 or red RF adjustment knob on top of the units chassis Page 8 of 10 6 0 Specifications Optic feature Performance wavelength 1310 1550 Input power Working mode Return wave loss Optical connector 5 3 Optical AGC 255 SOC RF feature Link feature General feature Bandwidth Output level Flatness Output le
5. panel and disconnect each fiber connector from the bulkhead mounted on the plate Clean each fiber connector according to section A of the fiber cleaning guidelines 2 Connect the optic patch cord with output 1 port on real panel CAUTION Use caution when handling fibers Do not exceed fiber manufacturers pulling tension or bend radius specifications when removing fiber bulkhead connector plate Page 4 of 10 Receiver Controls Indicators and Alarms This section of the manual will give an overview of the available menus in the MX862R 2 series optic receiver and their descriptions All instructions in Section 2 0 refer to the representation of the front panel shown in the diagram below The user scrolls through the menus using the push bottoms found on the front panel these are located just to the right of the LCD screen RX1 RF Test Low NOM High Re TTT TLL Temp Modulation Depth Powert a A v Status MGC ATT Power2 AGC AGC Optical Receiver 3 1 The operation of the panel 3 1 1 Open menu A Plugin 110V power supply B Turn on power switch in the rear panel Unit enters the self check mode after validating it enters working status and will display Forward optic receiver RX1 Status lamp Red RX2 Status lamp Red TEMP Status lamp Green POWER1 Status lamp Green AGC Status lamp Green If the equipment operates with dual power supply status indicator of POWER2 is in g
6. reen If the status is changed from AGC to MGC its status indicator turns to green 3 1 2 Start up main menu Press STATUS button will display below menu in sequence Menu 1 S N Read only menu indicates the serial number Menu 2 INPUT Read only menu indicates the input optical power Page 5 of 10 Menu 3 UNIT TEMP Read only menu indicates the system temperature Menu 4 RF LVL Read only menu indicates the RF input level Menu 5 RF MODE Current RF mode display AGC Manual If it appears RF Mode AGC while it was in the state of AGC If it appears RF Mode Manual while it was in the state of MGC Menu 6 5V Reads Read only menu display the voltage 5V Menu 7 5V Reads Read only menu display the voltage 5V Menu 8 24V Reads Read only menu display the voltage 24V Menu 9 IP Adjustable list display the IP address of SNMP optional Menu 10 Subnet Adjustable list display the address of net mask optional 3 1 3 Menu assistant manual Press STATUS key for 1 or 2 seconds to amend the address menu that you wish to change press STATUS for 1 or 2 seconds to choose the amend location push STATUS currently value 1 press STATUS to the end of the address to enter into save and exit For example amend IP setup menu IP 192 168 000 015 if changing 5 to 6 use STATUS key to choose the place of 5 then press STATUS key to change 5 to 6 then press
7. s Unpack the unit from all packaging boxes Inspect the appearance of the unit for any shipping damages Document and inform the shipping company and your local representative as seen in section 1 2 of the damages Save the shipping boxes and their inserts for any future reshipment for upgrade or repair 2 2 Receiver Mounting and Power Connection Place the unit into a 19 inch wide rack or cabinet Make sure to leave a 1 75 inch about 4 5cm space above and below the unit Climate O0 C 50 C 32 F 122 F temperature range We recommend 25 C 77 F environment temperatures Humidity not higher than 95 in a dust free environment Equipment powered by AC or optional DC voltage Request of power supply AC input 94 245VAC 50 60Hz DC input 36 60VDC floating Power consumption Maximum 50W The DC power supply of the equipment must be the SELV supply stipulated as CAN CSA C22 2 No 950 95 standard The unit should be grounded grounding resistance lt 4 According to international standards Before connecting circuit please use spec 20AWG and larger electrical wire to connect the grounding screw on the bottom and the grounding frame When use DC input power supply the equipment chassis must be grounded 2 3 RF connection Connect the RF cable amp the connector on RX rear panel RF connector is F type plug The resistance is 75Q Page 3 of 10 2 4 Optic connection 1 For your protection amp safety
8. utput models there is an additional RF level control lt red know gt on top of receiver lt top of chassis gt that should be used to adjust the RF output level C CTB and CSO RF output level too high will cause CSO and CTB index to experience deterioration Output level increase 1dB CTB deteriorates 2dB CSO deteriorates 1 5dB D When properly adjusted the optical receiver RF output level should ensure the distortion index CTBs 65dB CSO lt 60cB Page 7 of 10 5 0 ERROR AND REMEDY 1 No RF output a Check the power supply of the unit to determine whether it is normal b Insert optical connector if the RX Low is showing a red light or no optical power you should use an optical power meter to measure the optical power of the optical cable output connector If optical power is normal it may not be seated well into the optical connector this unit adopts SC APC or optical receiver module may be damaged If damage is suspected you should contact Maxcom and return for factory maintenance c Insert optical connector if the RX Low is still showing a green light and optical power is within normal range you may check FL EQ ATT1 or red RF adjustment knob on top of the units chassis 2 RF output level too low lt 20dBmvV a Check received optical power to determine if too low lt 12dBm b If optical power is normal you may check all connections If all are normal power double module BGD702 may be damage
9. vel adjustable 45 862 53 lt 0 5 0 20 MGC Reflect loss Output impedance Test channel CNR gt 16 750MHz 75 PAL D 60ch 252 10Km fiber 1dBm receive CTB CSO Network management interface option Power supply RJ45 RS232 support IE and SNMP 110VAC Power Consume Work temp Storage temp Relative humidity lt 50 single power work 5 65 Machine temp Control automatically 40 85 5795 Size W x D x H 19x10x1 75 483x254x44 mm Page 9 of 10 7 0 GUARANTEE AND REPAIR ITEMS 1 Each unit is packaged with a Products Qualification label with the series number providing one year s guarantee 2 In case of Red indicator LED blinking Alarm Please return for repair User should not open the top cover for repair or warranty will be voided r axycom Provided by Mega Hertz 800 883 8839 info go2mhz com www go2mhz com Page 10 of 10
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