NCM NCM-1550-EM30, Operating Manual

Page 1: ...NCM 1550 EM30 1550nm Externally Modulated Optical Transmitter Operating Manual...

Page 2: ...Power Module 9 3 4 Menu Operation 9 3 4 1 Main Menu 9 3 4 2 Display Menu 10 3 4 3 Set Menu 11 3 4 4 Alarm Menu 12 3 4 5 AGC Mode 12 3 4 6 MGC Mode 12 3 4 7 Frequency Adjust ITU in DWDM 13 3 4 8 SBS S...

Page 3: ...al 2 5 5 WEB Network Management 23 6 Maintenance and Troubleshooting 25 6 1 Cleaning Fiber Optic Connectors 25 6 1 1 Cleaning Patch Cord or Pigtail Fiber Optical Connectors 25 6 2 Troubleshooting 26 6...

Page 4: ...event of problems 1 2 Product Description NCM 1550 EM30 series optical transmitter is a 1550nm DFB laser externally modulated transmitter It is specially developed for the CATV signal that satisfies...

Page 5: ...ue can be set up to 19dBm The optical modulator has a two way optical signal output Parts of that signal are routed to an InGaAs photodiode This detection of the optical signal has two functions 1 Det...

Page 6: ...ptical Power dBm 2 7 2 8 2 9 2 10 SBS Threshold Value dBm 13 19 Continuously adjustable Laser Linewidth MHz 0 3 2 2 Model Test Indicators Test Model C42 D59 D84 D84 Channel Plan CENELEC42 PAL D59 PAL...

Page 7: ...y EDFA with 5dB noise figure RF input level at 80 dB V TV channel 2 4 Technical Data Sheet Item Unit Technical Parameters RF range MHz 47 1003 RF flatness dB 0 75 RF return loss dB 16 RF input impedan...

Page 8: ...panel optional 12 Optical output interface A or on the rear panel optional 13 Optical output interface B or on the rear panel optional 3 1 1 Indicator Description Power indicator One power supply LED...

Page 9: ...module 3 Fan 4 RF input port or on the front panel optional 5 RS232 interface 6 LAN interface 7 Optical output interface A or on the front panel optional 8 Optical output interface B or on the front...

Page 10: ...V Power Module 1 Mounting screws 2 Positive terminal block 3 Negative terminal block 3 4 Menu Operation 3 4 1 Main Menu Displayed parameters Comments Boot display 1 Disp Parameters Menu one Display pa...

Page 11: ...e RF CSO CSO monitor voltage 12V Read 12V monitor voltage RF Source The current RF signal source LASER Laser status Laser Cooling Cooling current SBS Module Temp SBS module temperature OMI rms Total m...

Page 12: ...e Set AGC Set MGC Set RF adjusted value Adjustable range 0 15dB with MGC mode Adjustable range 3 3dB with AGCmode Set SBS Suppression Set SBS value Range 13 19dBm 0 5dB stepping Set ITU Set optical wa...

Page 13: ...12V voltage is high low 24V Status HIGH LOW The 24V voltage is high low Laser OFF The laser is off CSO Initialization failed The CSO initialization is failed Power invalid LEFT RIGHT The left right p...

Page 14: ...nce and the wavelength distance is very similar to linear relationship 50GHz frequency distance reflects to wavelength is very approximate to 0 4nm width As the same 100GHz frequency distance reflects...

Page 15: ...rce Attention Avant de brancher le syst me sur la source d alimentation consulter les directives d installation Warnung Vor dem Anschlie en des Systems an die Stromquelle die Installationsanweisungen...

Page 16: ...3 3 Connecting the Optical Fiber Cables NCM 1550 EM30 has two output optical connectors 1 Verify the matched NCM 1550 EM30 fiber cable connector type according to the ordering information 2 Verify th...

Page 17: ...l 4 3 5 Connecting Power The NCM 1550 EM30 is available in an AC power model or DC power model After mounting the NCM 1550 EM30 in a rack follow the power connection procedure below for the model that...

Page 18: ...onnect 2 TX 3 RX 4 No Connect 5 GND 6 No Connect 7 No Connect 8 No Connect 9 No Connect The serial communication uses the standard NRZ form 1 starts bit 8 data bits 1 stop bit and the baud rate is 384...

Page 19: ...our equipment As follows Press the OK button shows the configuration page of serial port As follows Change the serial port configuration to 38400 baud rate 8 data bits no parity bit 1 stop bit no data...

Page 20: ...es to connect the RS232 port with the computer port Open the Windows Hyper Terminal which you have set up Then turn on the power you will see the page as follows Enter the password to enter the config...

Page 21: ...ure the SNMP group name List system default parameters or user updated parameters Restore the factory default values Specific using as follows help This command shows current application program versi...

Page 22: ...t exist SNMP Trap does not send to these two addresses community This command configures the read only group name and read write group name Group name is the concept of SNMP agreement like the passwo...

Page 23: ...ween network devices exchange easier It is part of the TCP IP protocol group SNMP enables the end users to manage network performance find and solve network problems and arrange for future network upg...

Page 24: ...face as follows Type the user name admin and the password 123456 factory default enter the following interface There are 3 sub interfaces 1 About1550 interface Mainly described the basic information o...

Page 25: ...Update column can update the parameters The steps to change the parameters find the item in the Item column select the new parameter values in the New column and click the corresponding Update button...

Page 26: ...ical connector can do more harm than good Never spray a clean air product onto the surface of an optical connector Spraying air onto an optical connector can cause condensation on the connector surfac...

Page 27: ...one of the contents The laser is off Contact Customer Service RF indicator is flash red RF IN Status LOW HIGH RF input is low high Verify the optical transmitter is operating within the proper input...

Page 28: ...call our technical support hotline 86 0571 82576002 18967160936 3 The site maintenance of the fault equipment must be operated by professional technicians to avoid worse damage Special notice If the...