MUL‐1550TX‐1000‐XX User Manual
Contents
1. Menu 6 RF Mode Selectable menu Displays the current RF mode either AGC or Manual If RF Mode AGC is displayed the unit is in Automatic Gain Control mode If RF Mode Manual is displayed the unit is in Manual Gain Control mode MGC To change the RF Mode see section 4 3 2 below Menu 7 RF LVL Read only menu displays the RF input level Menu 8 Unit temp Read only menu displays the unit temperature in C Menu 9 5V monitor Read only menu displays the actual output voltage from the 5V supply There will be an alarm red blinking LED if the output voltage exceeds 0 5V Menu 10 5V monitor Read only menu displays the actual output voltage from the 5V supply There will be an alarm red blinking LED if the output voltage exceeds 0 5V Menu 11 24V monitor Read only menu displays the actual output voltage from the 24V supply 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 7 miim Multicom 1550nm Optical Transmitter MUL 1550TX 1000 XX Menu 12 IP Selectable menu Displays the IP address for the SNMP Network Interface Menu 13 SUB Selectable menu Displays the subnet IP address for the SNMP Network Interface Menu 14 GW Selectable menu Displays the default gateway address for the SNMP Network Interface Menu 15 TR1 Selectable menu Displays the default trap address 1 for the SNMP Network Interface Menu 16 TR2 Selectable menu Display2. oD MULTICOM Multicom 1550nm Optical Transmitter MUL 1550TX 1000 XX Sehect T h WOM RF Te EPA gt Low FY Gaal WUNUONENONNREENNNGNY 4 T Miotulatign Depth i ws i i AC Mac Cal User Manual v 2 www multicominc com 800 423 2594 407 331 7779 1076 Florida Central Parkway Longwood FL 32750 a y Multicom 1550nm Optical Transmitter Sf MUL 1550TX 1000 XX SAFETY NOTIFICATION The Multicom 1550nm Optical Transmitter is classified as Class 1M per IEC EN 60825 1 A2 2001 This product complies with FDA CDRH 21 CFR 1040 10 and 1040 11 except for deviations pursuant to Laser Notice No 50 dated 26 July 2001 Viewing the laser output with certain optical instruments for example eye loupes magnifiers and microscopes within a distance of 100 mm may pose an eye hazard Laser power up to 26 mW at 1550nm could be accessible if optical connector is open or fiber is broken Lasers are Powered ON whenever the unit is powered CAUTION Use of controls adjustments and procedures other than those specified herein may result in hazardous laser radiation exposure IMPORTANT SAFEGUARDS Multicom strongly advises you to read the following safety instructions prior to installing and operating this equipment e Read These Instructions First All safety and operating instructions should be read before installing or operating this equipment e Retain This Instruction Manual Safety and operat
3. properly or set to off A red flashing LED indicates a system alarm A With the power source turned on power switches are located at the rear of the unit and the unit working properly the digital panel will display the Multicom Model Number of the unit and KEY OFF The Laser LED 2 will be red B In order to protect the laser there is a time delay function After turning the laser on with the front panel Laser On button the LED will display KEY ON and the laser will start to operate after about 2 seconds The laser LED will turn from red to green and the LCD display will become brighter C To conserve power the LCD display will go dark after five minutes when idle 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 6 miim Multicom 1550nm Optical Transmitter MUL 1550TX 1000 XX 4 2 Start up Main Menu Pressing the A and F buttons will scroll through the menu sequence below Pressing the Select button when the LCD displays medit allows the entry to be edited as described in section 4 3 1 Menu 1 Model and S N Read only menu displays the Model Number and Serial Number of the unit Menu 2 Output Read only menu displays the output power in dBm Menu 3 Laser current Read only menu displays the laser current in mA Menu 4 Laser temp Read only menu displays the laser temperature in C Menu 5 TEC heating Read only menu displays the TEC cooling in A
4. ally and the front panel display will show the cause of the fault Select the MGC mode if Your application has a desired variation of the input level to be passed onto the receive end of your link Your application has an input that is too high a level or too low a level to allow AGC to control it In MGC mode The input level to the laser can be adjusted manually by turning the OMI Optical Modulation Index adjustable potentiometer 14 until the level is within the NOM range on the Modulation Depth bar graph 11 5 0 OPERATION NOTICE Changes to IP and RF Mode settings will be retained on power down up Use only Single Mode Fiber SMF optic cable 9 125uM Multi Mode Fiber MMF is incompatible with the equipment and will result in unacceptable performance and possible damage to the equipment All fiber splices should be fusion type splices Avoid mechanical or compression type connections For optimum performance fiber runs should be made directly from the transmitter to the receiver Minimize the use of adapters patch panels and additional points of failure and signal loss The 1550nm Optical Transmitter is shipped optimized for SBS Stimulated Bernouli Scattering suppression at a distance of approximately 5 km or less and a maximum fiber input level of 17 dBm optical power When using the unit with optical amplifiers use only fiber rated with high SBS suppression capabilities and do not exceed the power or distan
5. ce limitations For special applications contact the factory In order to ensure return loss is maximum use only SC APC connectors Clean and inspect connectors and fiber endfaces prior to installation and every plug in out cycle Use only industry approved methods materials and solutions for cleaning 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 9 Pi Multicom 1550nm Optical Transmitter LD MUL 1550TX 1000 XX e Do not turn on the transmitter alone or without a protector cover at the unit connector end otherwise the laser can do harm especially to eyes This is especially critical because the laser is invisible e Always turn off the laser prior to making connections to the transmitter Failure to do so may cause irreparable damage to the laser and transmitter 6 0 WARRANTY AND REPAIR The Multicom 1550nm Optical Transmitter has a one year warranty and is subject to Multicom s standard warranty terms There are no user serviceable components inside the unit The warranty is void if the unit is opened or is damaged due to misuse 7 0 PRODUCT SPECIFICATIONS Specifications Values Notes Power supply Volt AC 90 265 Power consumption W s Size WxDxH in inches 19x14 25x1 75 Interface port RJ45 RS232 Wavelength am 1530 1563 Optical connector SC APC RF bandwidth MHz 45 1000 Flatness dB 075 075 RF connector main input Ftype 79 channel load bac
6. ing instructions must be retained for future reference e Ventilation Do not block or cover openings in this equipment These are provided for ventilation and protection from overheating Maximum operating ambient temperature is 122 F 50 C e Power Sources The Multicom 1550nm Optical Transmitter must have a grounding resistance of lt 4 ohms All power must be provided via a three wire grounded power supply and cord The mains circuit should be a dedicated unswitched supply Keeps the unit away from high voltage or other interference creating devices such as motors compressors etc e Grounding or Polarization This equipment is equipped with a polarized AC line plug This plug will fit into the power outlet only one way This is a safety feature Do not defeat the safety purpose of a polarized plug This equipment must installed and grounded per NEC regulations A CAUTION For continued protection against risk of fire replace circuit breakers fuses if necessary with one of only the same type and rating A Optical Output Safety The Optical Transmitter units may emit harmful invisible laser radiation if powered on and the case is opened or the beam path is exposed 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 2 a y Multicom 1550nm Optical Transmitter NI MUL 1550TX 1000 XX Table of Contents 1 0 PRODUCT DESCRIPTION 2 0 PRODUCT FEATURES 3 0 1550nm OPTICAL TRANSMITTER LAYOUT 3 1 Fron
7. k to back CSO dB 57 at Od Bm receive power CTB dB o O B Product Series Part Output Power MUL 1550TX 1000 06 MUL 1550TX 1000 10 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 10
8. s the default trap address 2 for the SNMP Network Interface 4 3 Unit Configuration Instructions 4 3 1 Changing IP Address Settings To change the IP address in any of these menu items 1 Use the A and F buttons to scroll to Menu 12 16 2 Pressing the Select button when medit is displayed puts the menu in edit mode and allows the IP address to be changed 3 Use the Select button when shift is displayed to move the curser through the octets of the IP address 4 Stop in the field that you want to change 5 Press the appropriate button to A increase the number V decrease the number or m save the entry 4 3 2 Changing RF Mode Settings Menu 6 The default RF Mode is AGC The LCD screen displays the current RF Mode To change the RF Mode 1 Use the Select button to scroll to Menu 6 RF Mode 2 Pressing Select when medit is displayed puts the menu in edit mode and allows the RF mode to be changed 3 Press the appropriate button to change the setting to either AGC or MGC followed by the Select button to msave the entry 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 8 miim Multicom 1550nm Optical Transmitter MUL 1550TX 1000 XX If the RF input level is too high there will be an alarm red blinking LED turn off power supply and turn on again If any fault occurs there will be alarm red blinking LED the microprocessor will shut down the laser power automatic
9. t Panel Layout 3 2 Rear Panel Layout 4 0 CONTROLS INDICATORS AND ALARMS 4 1 Front Panel Operations 4 2 Start up Main Menu 4 3 Unit Configuration Instructions 4 3 1 Changing IP Address Settings 4 3 2 Changing RF Mode Settings 5 0 OPERATION NOTICE 6 0 WARRANTY AND REPAIR 7 0 PRODUCT SPECIFICATIONS 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 3 oy Multicom 1550nm Optical Transmitter LA MUL 1550TX 1000 XX 1 0 PRODUCT DESCRIPTION Multicom s 1550nm Direct Modulated Optical Transmitter delivers high performance signal transmission of NTSC PAL ATC QAM and related digital information for CATV and or telephony applications It is based upon custom high linearity optically isolated DFB Distributed Feedback lasers specifically designed for multi channel AM video applications The built in control circuits provide an exceptionally low noise and inter modulation characteristics Automatic output power control coupled with temperature Stabilization provided by a thermoelectric cooler ensures maximum performance and longer laser life The units are packaged in slim 1 75 inch high 1RU 19 inch aluminum rack mounted enclosures Each unit is fitted with redundant self contained power supplies with 90 265VAC inputs All internal laser parameters and monitoring functions are under microprocessor control the front panel displays status information related to laser operation temperatures and RF inp
10. ton 11 Modulation Depth bar graph measuring the input level to the laser In AGC mode within input range OMI is always in nominal NOM range In MGC mode OMI can be brought within NOM range by adjusting the OMI potentiometer 14 12 AGC LED Automatic Gain Control mode selected when lit 13 MGC LED Manual Gain Control mode selected when lit 14 OMI Optical Modulation Index adjustable potentiometer only used in MGC mode 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 5 miim Multicom 1550nm Optical Transmitter MUL 1550TX 1000 XX 15 F Connector test point 20dB below RF input signal level 3 2 Rear Panel Layout 1 2 3 4 6 RF INPUT Optic LAN Tai 7 RS232 Power 2 90 265VA 0 60Hz Figure 2 Rear Panel 1 RF Input 2 Fiber Optic SC APC Connection 3 LAN Port SNMP Network interface 4 RS232 Port 5 Power 2 Receptacle 6 Power 1 Receptacle 4 0 CONTROLS INDICATORS AND ALARMS This section of the manual gives an overview of the available menus in the 1550nm Optical Transmitter All instructions in section 4 refer to the image of the front panel Fig 1 The user scrolls through the menus using the push buttons found on the front panel these are located just to the right of the LCD screen 4 1 Front Panel Operations When the status indicators LEDs are green the unit is working properly red LEDs indicate that the specific function is not working
11. ut 2 0 PRODUCT FEATURES e Transmits NTSC PAL ATC and related digital information for CATV and or telephony applications e Available in 6 and 10dBm output levels e High linearity optically isolated distributed AM feedback DFB laser e 45 1000MHz RF input bandwidth e Front panel RF test point 20dB e Operation wavelength 1550nm e Low RF drive levels enabled due to built in RF amplifier and Automatic Gain Control e Microprocessor controlled diagnostics front panel LCD display and controls e Factory installed SNMP network interface e Dual online redundant power supplies 2010 Multicom Inc www multicominc com 800 423 2594 407 331 7779 Page 4 Pra T Multicom 1550nm Optical Transmitter L7 i MUL 1550TX 1000 XX 3 0 1550nm OPTICAL TRANSMITTER LAYOUT 3 1 Front Panel Layout aser O NON e aser Off x NOM RF Test aser A y Select o e K a Low hd High fh E ds LA AA c temp Modviation Pepth Powerl c ct G J aseron Power2 MUL 1550TX 1000 AGC MGC OMI Figure 1 Front Panel 1 Laser On Off button 2 Laser LED Active when lit 3 RF LED Signal detected and within range when lit 4 Temp LED Laser temperature Green LED Within nominal range Red LED Outside of nominal range 5 Power1 LED Source in use when lit 6 Power2 LED Source in use when lit 7 LCD screen see 4 3 for menu operation 8 LCD menu up button 9 LCD menu down button 10 LCD menu SELECT but
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