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ES10/ES26

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Document status: released

Operating Manual

rev. 01, 03.11.08

7.5 Changing SBS Threshold

The picture below shows, how to change the SBS suppression (threshold) between 13.0 and
19.0 dBm for the

ES10XL/ES26XL

(be aware that the ES10L has a fixed SBS threshold of 16

dBm). It is important to understand, that the SBS setting has a major impact on the transmission
performance, especially for very long fiber transmission (e.g. 100 km) and high frequencies (860
MHz). Please refer to 5.3.7. The SBS suppression can be adjusted in 0.5dB steps (calibrated).
From NEC application software release 1.11 the adjustment can be carried out in 0.1 dB-steps,
which are in this case interpolated, the 0.5 dB steps are still calibrated.

Fig. 7.5.1

: Changing the SBS threshold of the ES10XL/ES26XL

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Summary of Contents for ES10L

Page 1: ...ES10L ES10XL Optical CATV Transmitter 1550 nm and ES26XL Optical CATV SAT IF Transmitter 1550 nm Operating Manual Rev 01 November 2008 ...

Page 2: ...ore putting into operation All operation steps should be carried out in the prescribed sequence Improper putting into operation can cause serious danger for persons or damage the devices INVISIBLE LASER RADIATION DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS CLASS 1M LASER PRODUCT MAXIMUM OUTPUT POWER 15 6 mW WAVELENGTH 1550 nm IEC 60825 1 08 2001 ...

Page 3: ...ithout limitation the loss of production or profit arising from any cause whatever even if BKtel communications GmbH has been advised to the possibility of such damage or damages or even if such damage or damages is alleged to arise from negligent acts omissions or conduct of BKtel communications GmbH or its employees The liability of BKtel communications GmbH is expressly limited to the replaceme...

Page 4: ...ion for b versions 28 4 4 EMS Service Interfaces 30 4 5 Front Panel 31 4 6 Rear Panel 31 4 7 Power Supply and Fan Modules 32 4 8 Labeling 34 5 OPERATING THE ES10 ES26 35 5 1 Handling Optical Components 35 5 2 Power Up Sequence 39 5 3 Setting appropriate Operating Conditions 39 5 4 LED Display 44 5 5 Push Button LCD Display 45 6 CONTROLLING A NEC 49 6 1 Communicating with the NEC 49 6 2 Devices Upd...

Page 5: ...nging SAT IF OMItotrms ES26 only 79 7 11 Setting SAT IF Gain ES26 only 80 7 12 Changing SAT IF AGC Mode ES26 only 81 7 13 Setting SAT IF Slope ES26 only 82 7 14 Changing ITU Frequency 83 7 15 Changing Optical Output Power Mode 84 7 16 Changing Regulation Mode 85 7 17 Changing I O Port s Mode 86 7 18 Setting an Alarm Warning Mask for I O Port 0 89 7 19 Changing RF Input Alarm Mode 90 7 20 Setting C...

Page 6: ... 104 Document status released Operating Manual rev 01 03 11 08 11 RELEASES 102 11 1 ES10 ES26 Hardware Releases 102 11 2 ES10 ES26 Software Releases 103 11 3 Network Element Controller Releases ES10 ES26a Versions 104 ...

Page 7: ...g Manual rev 01 03 11 08 DOKUMENT STATUS Document Operating Manual ES10 and ES26 Revision Date Responsible Remarks 00 31 07 2008 Illies Document created 01 03 11 2008 Illies NEC appl SW release 2 4 2 CSO regulation mode revised Alarm Warning Flags revised ...

Page 8: ...unit for CATV and SAT IF ES26 I O ports Not for ES10L types Power supply fan module 100 VAC 240 VAC Power supply fan module 36 VDC 60 VDC Power supply fan module 24 VDC Power supply fan module Fan only module SC APC optical connector 8 angle default SC APC optical connector 9 angle option FC APC optical connector JDS standard default FC APC optical connector NTT standard option E2000 0 1 dB optica...

Page 9: ...NMP Ethernet RS485 I O ports 1 only XL Wavelength X 15xx xx 1548 1560nm 15xx xxnm ITU Wavelength Optical connector 1 2 3 4 5 E2000 SC APC FC APC NTT FC APC JDS SC APC with shutter RF input opt output F R On front side On rear side OEM Version 0 OEM BKtel OEM Version Power supply 230 230 48 48 24 24 230 48 24 230 48 2 x 100 240 VAC 2 x 36 72 VDC 2 x 23 5 24 5 VDC 1x 100 240 VAC 1 x 36 72 VDC 1 x 23...

Page 10: ...er length exceeding 50 km is proposed This version offers a SBS threshold which can be adjusted between 13 and 19 dBm a very narrow linewidth laser 0 3 MHz output powers of 2 8 5 85 version or 2 10 dBm 100 version ITU grid compatible wavelength which can be adjusted by 100 GHz an 10 100 Ethernet Webserver and SNMP interface for EMS NMS element network management systems Future proof operation is a...

Page 11: ...s for the Webserver interface can be set using the push buttons at the front panel or the RS232 local set up port at the rear side An additional RS485 master interface has been implemented at the ES10XLa ES26XLa to poll other equipment like EDFAs or optical switches which are connected to the local RS485 management bus There are optionally one general purpose I O port and 4 input only ports availa...

Page 12: ...ops for operating the laserdiode at constant optical output power as well as at constant temperature by means of a thermoelectric cooler The ES10XL has been designed for DWDM applications and allows tuning the operation frequency wavelength by 100 GHz in steps of 50 GHz The laserdiode operating current is controlled in order to compensate for ageing effects The temperature of the laserdiode is con...

Page 13: ...ernal working temperature is reached the bias point of the electrooptical modulator is evaluated by one of two methods 1 Channel controlled A detector circuit measures CSO and CTB distortions to optimize the bias point of the electrooptical modulator For a proper operation of the detection circuit at least two TV carriers with a frequency spacing of 24 MHz have to be present Using this standard so...

Page 14: ...ce HTTP and SNMP Ethernet 10 100 Base T supporting SNMP and Webserver HTTP protocols for interfacing to a EMS or NMS General purpose I O interface The ES10L XLb is equipped with two RS485 slave interfaces for interfacing to an EMS or NMS Additionally there are two output ports available for simple alarm or warning messaging Plug in power supply fan modules for different input voltages are availabl...

Page 15: ...e BKtel RS485 protocol are polled The received data is then translated into SNMP and HTTP and can be accessed via the Ethernet interface The NEC is able to poll up to 48 devices on the RS485 bus On the optional I O ports 1 5 warnings alarms collected from all polled devices can be accessed The application software of the NEC can be updated easily in order to support new devices An overview of soft...

Page 16: ...eivers For an actual overview please refer to www bktel com or contact BKtel directly All of these connected devices only provide RS485 slave interfaces since the NEC of the ES10XLa ES26XLa is the dedicated RS485 bus master polling all other devices The NEC SNMP Proxy Agent within the ES10Xla ES26XLa polls all devices and translates this information to Ethernet HTTP and Ethernet SNMP 3 3 1 Webbrow...

Page 17: ...tment of the selected device 3 3 2 NMS Communication The embedded network element controller NEC E or NEC E in BK mechanics provides an HMS compliant SNMP protocol for communication with the server of a central umbrella network management system NMS SNMP MIBs are available on request The NMS can deal with the complete set of device management features by SNMP MIB because all management functions a...

Page 18: ...velength adjustable 100 GHz XL Version Electrooptical modulator with 2 optical outputs Automatic RF gain control cw video manual mode 2 10 dBm output power XL 100 Version Adjustable SBS threshold up to 19 dBm to increase transmission distance XL Version Front panel RF test point 20 dB Dual hot plug in power supply modules for 100 240 VAC 48 VDC 24 VDC Web and SNMP Interface a Version RS232 RS485 c...

Page 19: ...t in 2 dB penalty of CNR for carrier frequencies 80 110 MHz and 4 dB penalty for band I 47 68 MHz carrier frequencies Electrical Properties CATV RF frequency Range MHz 47 862 Frequency response flatness dB 0 75 Nom Input level per TV channel dBµV 80 Input level range per carrier dBµV 78 96 for OMI 5 per CATV carrier True RMS input level range dBm 16 2 for ALC correctly working Slope range dB 2 cab...

Page 20: ...1 Performance Characteristics SAT IF CNR dB 27 Intermodulation products dBc 35 including intermodulations due to CATV signal Spurious signals dBc 38 Measurement conditions as described in table Test Condition under row Tx Rx moreover 36 QPSK modulated SAT IF signals with carrier frequencies in the range of 1000 2600 MHz and 27 MHz IF bandwidth are used Test Configurations Booster EDFA 2 1 st Fiber...

Page 21: ... Input level range per carrier dBµV 78 96 for OMI 5 per CATV carrier True RMS input level range dBm 16 2 for ALC correctly working Slope range dB 2 cable equivalent 8 cable equalization RF impedance Ω 75 Return loss dB 20 47MHz 1 5dB octave minimum 15 RF monitor test point level dB 20 0 8 0 2 862 MHz 1 3 dB 1GHz Performance Characteristics Transmitter version C42 B52 D59 D84 N77 Channel plan CENEL...

Page 22: ...ns Booster EDFA 1 st Fiber Length In Line EDFA 2 nd Fiber Length RX Tx Rx no no no no 0 dBm Link 1 no 35 km no no 0 dBm Link 2 16 dBm 65 km no no 0 dBm Link 3 13 dBm 52 km 13 dBm 52 km 0 dBm Rx with 7 pA Hz input noise current density EDFAs with 5dB noise figure RF input level at 80 dBµV TV channel ...

Page 23: ...er CATV carrier True RMS input level range dBm 16 2 for ALC correctly working Slope range dB 2 cable equivalent 8 cable equalization RF impedance Ω 75 Return loss dB 20 47MHz 1 5dB octave minimum 15 RF monitor test point level dB 20 0 8 0 2 862 MHz 1 3 dB 1GHz Performance Characteristics Transmitter version C42 B52 D59 D84 N77 Channel plan CENELEC 42 PAL B G PAL D 59 PAL D 84 NTSC 77 Number of cha...

Page 24: ...d Optical fiber standard single mode 9 125 µm RF connector F female front or rear side mounted Control interface a version Ethernet 10 100 interface only XL version b version RS485 232 interface Power Supply Dual redundant hot pluggable 3 Versions are available 100 240 VAC 36 72 VDC or 23 5 24 5 VDC Power Consumption W W ES10XL 56 63 1 2 power supply unit s equipped ES26XL 60 68 1 2 power supply u...

Page 25: ...ow IN LED loss of input power LED red nominal output power LED green lack of output power LED yellow loss of output power LED red OUT LED standby operation LED dark Table 4 1 1 Meaning of LED display The table beyond shows the condition triggering the LEDs on the front panel The Module LED summarizes the condition of the transmitter and information of the SAT input The IN and Out LEDs provide deta...

Page 26: ...bserver HTTP interface The schematics of these ports are given below Fig 4 2 1 Schematics of I O port Fig 4 2 2 Schematics of input only port Notes The maximum voltage applied to all ports should be not below GND level and should not exceed 5 VDC The input level for input high should be 1 6 V the input level for input low has to be 0 8 V The input only port and the open drain output port have a pu...

Page 27: ... Function in ES10XL ES26XL a versions only Pin Number of mini DIN connector Comments GND 2 Ground 5 1 VDC 5 voltage under no load condition 1 Max 80 mA protected by a serial Fuse 6 Ohms Input Output No 0 from hardware release 2 0 and software release 2 0 5 Used for redundancy switching feature input port or as alarm output port Input Output No 1 7 Either Input or Output configurable by Software In...

Page 28: ...sed to display a warning or an alarm if 1 one of the up to 50 RS485 polled devices or 2 the ES10 ES26 or 3 at least one of the input ports I O 2 5 which has been set to indicate a warning or an alarm exhibits a warning or an alarm For details please refer to 6 7 All I O ports can be addressed and configured via the Ethernet Webserver HTML interface or via SNMP In order to not degrade the EMI perfo...

Page 29: ...3 N A Input only No 3 8 N A Input only No 4 4 N A Input only No 5 6 N A Table 4 3 1 Mini DIN connector pin assignment of I O ports Notes On pin 1 there is a 5 1 VDC supply voltage available for feeding an external interface box which e g could contain optocouplers or relays etc the current sinked from this port should not exceed 80 mA In order to not degrade the EMI performance of the ES10 ES26 a ...

Page 30: ...d to software download the NMS server firmware in case the NMS server crashes during software updates when reprogramming application flash software over Ethernet Note The local setup process can only be executed when the device starts up After startup this interface has no function yet but in the future will be used for modem connections 4 4 3 BK device bus interface RS485 master a versions only T...

Page 31: ...eld for local set up of transmitter 6 7 Optical connectors optionally available on rear side 4 6 Rear Panel The rear panel is described in the following list Item Function 1 RF input optional located on front panel 2 3 Optical fiber outputs optional located on front panel 4 Not used in ES10 ES26 cover 5 I O ports 6 RS485 interface RJ 45 female a versions master b versions slave 7 RS232 interface S...

Page 32: ...plug in technology with neither harm the equipment nor having any impact on the operation of the transmitter in case of a properly working backup power supply 50 60Hz 100 240VAC AC LINE INPUT CE SV19 1HE 230V PS004999 Ä06 327827 Fig 4 7 1 100 240 VAC power supply and fan modules 4 7 2 48 VDC module Fig 4 7 2 shows the 48 VDC power supply and fan module There is a 48 VDC cable terminal in order to ...

Page 33: ... K LED is lightening green provided that the power supply module is working properly The power supply and fan modules might be exchanged during operation hot plug in technology with neither harming the equipment nor having any impact on the operation of the transmitter in case of a properly working backup power supply Fig 4 7 3 24 VDC power supply and fan modules 4 7 4 Fan only module For applicat...

Page 34: ...ig 4 8 1 Fig 4 8 2 reveals the characteristics of the device with all options ref to chapter 2 Fig 4 8 3 specifies the MAC address if applicable In case of questions please specify all these information when communicating with BKtel or sales representatives Fig 4 8 1 Device label with product number and serial number Fig 4 8 2 Label with product number and all characteristics ref to chapter 2 Fig ...

Page 35: ...tch cord in a sliding matter into the female connector of the device 3 Save the dust caps Please proceed in the reverse order for disconnecting optical links WARNING Do not stare into the laser beam of view directly with optical instruments In order to prevent uncontrolled emission of laser beams close the optical line connector immediately after opening the connection using the dust caps designed...

Page 36: ...age to your eyes Therefore always switch the equipment off for this kind of work Use a measuring device to ensure that there is no laser beam emission from the fiber NOTICE Do not touch the surface with your fingers when cleaning Plug pins with imprinted grooves on the front must only be daubed clean using a brush Dust or fluff can be blown away using the rubber bellows or dust free compressed air...

Page 37: ...he connector shaft on the moistened part of the cloth pressing lightly Let the cleaning fluid work into the dirt for a short time 4 Move the connector to and fro on the moistened part of the cloth turning slightly and pressing lightly Slide the front surface of the connector or connector shaft from the moist to the dry area without breaking the surface contact with the cloth so that no cleaning ag...

Page 38: ...connected Extremely dirty bushings must be replaced 3 3 1 Disconnect the optical connector or remove the dust cap from the bushing 2 Dissolve both screws of each optical connector Caution Extract the connector very carefully 3 Disconnect the internal optical connector inside the device and clean it as described in the proceeding section Caution Do not extend the connector by more than 1 cm from th...

Page 39: ... input signal applied the output power may vary about 1 dB on both outputs since the CSO control loop in channel controlled mode which fixes the bias point of the modulator and consequently the output power only works precisely with a RF input signal applied After this procedure the LEDs should monitor the status of the transmitter 5 3 Setting appropriate Operating Conditions 5 3 1 Optical output ...

Page 40: ... 10 64 64 10 10 10 10 10 10 log 10 75 108 Where PVSB is the level of the analogue TV carriers in dBµV NVSB is the number of analogue TV carriers LVSB is 0 dB for unmodulated carriers test and 4 dB for modulated carriers real video NFM is the number of audio radio carriers LFM is the audio radio level referred to the level of the analogue TV carriers e g LFM 4 dB N64QAM is the number of 64QAM modul...

Page 41: ...aintain the requested optical modulation index as described This index should be high in order to result in good noise behavior Yet too high modulation index causes bit errors which come up due to overmodulation clipping of the transmitter Therefore an optimum optical modulation index exists which is given in the table above The ES10 ES26 is factory adjusted to achieve a BER of max 10 9 with most ...

Page 42: ...table are required to obtain a stable performance In pilot controlled mode RF input signal is not required for internal bias point adjustment because the transmitter uses an internal pilot control The pilot frequency is outside the transmitted RF frequency range in order not to target user s signals 5 3 4 Applying an appropriate RF SAT IF input signal For proper operation of ES26 SAT IF input an a...

Page 43: ... mW in standard single mode fibers With electronic measures the coherency of the light can be degraded which increases the SBS threshold that means the optical power which leads to strongly perturbing SBS effects destroying the CNR and CSO performance especially in the lower transmission frequency band If the SBS threshold is increased another effect the SPM self phase modulation arises This effec...

Page 44: ...ower supply 1 or power supply 2 failure Laser cooler current 90 In this case the temperature of the transmitter is too high Improve thermal heat flow in order to decrease the operating temperature Laser bias current 130 The laser has degraded In case of a fan or power supply failure the power supply fan unit has to be replaced BKtel offers fans as regular spare parts too Urgent alarms MODULE LED r...

Page 45: ... code and the parameters can be changed without entering a code Keys default usage ESC key The ESC key is used mainly to cancel operations or to switch back a menu level ENTER key The ENTER key is used mainly to execute operations or to enter into a new menu level The Cursor keys are used to select a menu entry or to toggle between possible parameters The Cursor keys are used to change letters in ...

Page 46: ... server Keycode Change the LCD keycode Properties Show server properties like software and hardware releases Date Time Adjust the server s real time clock Reset Server Software reset the server Rescan RS485 Re Search for RS485 devices on the bus Logout Logout from LCD and return to Root Screen NMS Server IP Settings NOTE Don t forget to Save Settings after a change Save Settings Save the changed I...

Page 47: ...Laser Frequency Change or show the lasers ITU optical frequency DWDM only Slope Change or show RF slope for CATV input SAT Slope Change or show SAT RF slope for SAT input AGC Mode Change or show the AGC mode SAT AGC Mode Change or show the SAT AGC mode Optical Output Power Change or show optical output power CSO Regulation Mode Change or show the CSO regulation mode I O Port Mode Change or show th...

Page 48: ...t related to beginning of life value Module Temperature Shows internal temperature 24V 3 3V 5V 10V 2 5V Shows actual voltage of internal power supplies Reg State Shows the regulation state of electrooptical modulator For actualization of values just go back to the ES10 ES26 menu and enter again Limits limit values of above mentioned parameters for warning and for alarming state Parameters and orde...

Page 49: ...485 master interface using the integrated Ethernet webserver HTTP interface In case of the ES10XLa ES26XLa the NEC E is embedded and a connection between NEC E and ES10 ES26 has been established internally In order to enable the communication of an ESxb with a NEC the RS485 slave port of the ESxb has to be connected with the RS485 master port of the NEC The NEC Ethernet interface has to be connect...

Page 50: ...s equipment is currently displayed in the main window of the browser At the same time Status is highlighted in the main window That means the main window currently displays the status of the ES26XLa By selecting a different menu in the main window Parameters Voltages Settings Limits Limits 2 and Properties of the ES26XLa can be selected For location of a device connected to the NEC the flag in fro...

Page 51: ...g Manual rev 01 03 11 08 Fig 6 1 2 Log in to the NEC server In order to change values within the equipment recognized by the NEC it is necessary to login to the NEC server Otherwise it will only be possible to view all the values however not to change them ...

Page 52: ...s depending on the actual Windows language setting After login two additional menu buttons appear in the menu Devices Devices update and Configure Slots In the main window a button RescanAll allows to research the network for newly connected devices Please note that new BK devices should be automatically detected by the server when inserted into the RS485 bus but if there are problems then this bu...

Page 53: ...3 104 Document status released Operating Manual rev 01 03 11 08 6 2 Devices Update Using this menu button an update of the selected devices firmware is possible as can be seen in Fig 6 2 1 Fig 6 2 1 Devices update menu ...

Page 54: ... assign a slot number to the specific device The number range is from 1 to 48 Number 49 is reserved In case no numbers are assigned number 50 and above are automatically used In case the device is a BKtel product mounted in a BBT00x subrack the slot number is detected and assigned automatically For details see the operational manual of the BBT00x Fig 6 3 1 Configure slots menu ...

Page 55: ...age 55 104 Document status released Operating Manual rev 01 03 11 08 6 4 Server Properties Selecting the menu Server the sever properties are displayed as shown in the following figure Fig 6 4 1 Server properties ...

Page 56: ...as passed At the same time the previous shown event with filled exclamation mark is scratched out Red flags show urgent alarms The meaning of filled or unfilled flags is the same as with the exclamation mark Orange flags show warnings The meaning of filled or unfilled flags is the same as with the exclamation mark All events are shown with time stamps the equipment causing the event the serial num...

Page 57: ...t The number of trap packets which have been sent by the NEC Rem Trap packets are counted example In case of 4 registered trap receivers the counter is increased by 4 for each trap event Traps pending The number of trap packets which the NEC E has still to send Traps discarded The number of trap packets the NEC E has discarded The counter is incremented in case of any discarded trap that means in ...

Page 58: ...tionally general purpose I O ports for remote control functions ref to 4 2 By selecting this item in the Server Menu a display as shown below will appear Fig 6 7 1 Display of I O ports menu In the I O mode column the mode of both the I O port and all 4 input only ports ref to 4 2 can be set The picture below shows the available options for the I O port ...

Page 59: ...ment status released Operating Manual rev 01 03 11 08 Fig 6 7 2 Available modes of operation for the I O port The options for the input ports are shown in the picture below Fig 6 7 3 Available modes of operation for input ports ...

Page 60: ...put will become active with any alarm Alarm limits for the ES10XLa can be set in limit menus of ES10XLa available for port 1 Output on any warning Output will become active with any warning Warning limits can be set in limit menus of ES10XLa ES26XLa available for port 1 Table 6 7 1 Modes of the I O ports All ports can be set to be either active low or active high A description of the I O port func...

Page 61: ... RF input level of ES10 ES26 is extremely low alarm Active Active Optical input power level of OVxxxxb is low warning ES10 ES26 has no warnings or alarms Inactive Inactive Optical input power level of OVxxxxb is low warning ES10 ES26 has no warnings or alarms I O 2 is set to alarm on input I O 2 receives an alarm Inactive Active Optical input power level of OVxxxxb is very low alarm ES10 ES26 has ...

Page 62: ...the NEC is quite high in order to avoid too much communication traffic The new parameters in the different blocks are executed by clicking on the change button of the individual block There are three levels of login priorities defined Username Factory Default Password Description technical technical In this level all parameters are allowed to be changed except the update and server administration ...

Page 63: ...he IP trap receiver addresses for up to 4 trap receivers and to change the trap community strings for trap receiver 1 and trap receiver 2 to 4 Additionally all traps can be disabled enabled Furthermore the inventory traps might be disabled or enabled A further button allows selecting the SCTE HMS alarm generation Disable all traps Enable all traps Enable and resend all traps this function is helpf...

Page 64: ... 5591 1 as demanded by HMS MIB and with Trap Type COLD START As demanded by HMS MIB the hmsColdStart Trap is sent with the ENTERPRISE OID scteHmsTree 1 3 6 1 4 1 5591 1 and with Trap Type ENTERPRISE SPECIFIC Specific Trap Type 0 HMS Notifications enabled 1 disabled All messages of type Notification are sent as Trap and are inserted in the SNMP SCTE HMS tables Since HMS does not recognize Notificat...

Page 65: ...e IP address of a receiving modem e g ISDN router could be used instead of the IP address of a real trap receiver Timeout A timeout time between 30 and 600 seconds might be specified in order to detect a link error The NEC E is waiting the specified time for replies on the sysDescr SNMP Get Requests After this time all pending traps are sent regardless of a reply has arrived or not Important In th...

Page 66: ...ng the Webserver software upload menu as shown below Fig 6 10 1 Server update menu A Server software update might be required if new equipment has to be supervised by the NEC connected to the RS485 master interface or if the changes to the WebBrowser or SNMP Ethernet interfaces have to be implemented Note The buttons occur in different languages depending on the actual Windows language setting ...

Page 67: ... 1 Config save menu A table of the controlled devices with model name alias name serial number and slot number is displayed Devices can be marked for configuration saving using last column of the table Pressing the Generate Config file button a file with the settings of the selected devices is generated and stored in the flash memory of the NEC To save the file locally the button Save generated Co...

Page 68: ... Restore from the available configurations can be selected by model name alias name serial number and slot number The Restore button starts the restoration In the last column it can be selected if the equipment should also take over the aliasname and slotnumber In this way the device can be completely recovered in its settings In this manner it is easy to configure a replacement unit or restore th...

Page 69: ...hould be transferred to another device e g in a different system the mark has to be deselected Only the configuration settings are then applied the aliasname and slotnumber of the device is not altered Using the Upload Config file button a local file can be loaded into the NEC memory and further on be used for restoring configuration settings as described ...

Page 70: ...g a mark and a description There are several marks filled or unfilled used to show all events A green flag indicates that the transmitter is working properly An orange flag shows a warning A certain parameter is out of the nominal range The reason for that should be checked and solved as soon as possible A red flags show an urgent alarms An immediate action is required to fix the failure An exclam...

Page 71: ...menu displays the most important values of the transmitter for operation Fig 7 2 1 Parameters menu of ES10 ES26 For proper operation the black vertical bars should meet the green fields Note The scaling of the green and yellow fields might be different in order to obtain a good reading especially of the green field ...

Page 72: ... Voltages The voltages menu displays all internal supply voltages like shown below Fig 7 3 1 Internal voltages menu of ES10 ES26 For proper operation the black vertical bars should meet the green fields Note the thresholds for alarms are not adjustable by the user but are factory settings only ...

Page 73: ... This menu allows changing some basic adjustments of the ES10 ES26 Note Some of the settings require certain hardware and software releases Please refer to the manual supplied with the transmitter if some options are different or missing compared to this picture Fig 7 4 1 Settings menu of ES10 ES26 ...

Page 74: ... important to understand that the SBS setting has a major impact on the transmission performance especially for very long fiber transmission e g 100 km and high frequencies 860 MHz Please refer to 5 3 7 The SBS suppression can be adjusted in 0 5dB steps calibrated From NEC application software release 1 11 the adjustment can be carried out in 0 1 dB steps which are in this case interpolated the 0 ...

Page 75: ... 2 0 the RF OMItotrms OMIrms in the figure beyond is shown in In previous software releases RF OMItotrms was shown relative in dB to a nominal value The display in enables an easy comparison e g with the graphs as shown in 5 3 For that reason ES10 application software release 1 12 and later supports this feature Notes 1 OMI nominal refers to a factory setting and cannot be changed by the user 2 RF...

Page 76: ...in of ES10 ES26 ES10 application software release 2 0 and later supports this feature Notes 1 The RF gain setting is only relevant in AGC on mode 2 The setting range for RF gain might change slightly from device to device due to production tolerances 3 Changing the RF gain changes the input sensitivity of the ES10 ES26 in AGC off mode 0 dB is the nominal RF gain Setting the RF gain to e g 2 dB imp...

Page 77: ...ting Manual rev 01 03 11 08 7 8 Changing AGC Mode The transmitter can be operated in manual AGC off as well as an automatic gain controlled AGC on mode For details please refer to 5 3 1 Fig 7 8 1 Selecting the RF AGC mode of the transmitter of ES10 ES26 ...

Page 78: ...rating Manual rev 01 03 11 08 7 9 Setting Slope The ES10 ES26 enables to change the slope of its internal RF amplifier stages The slope equalizer follows a RF cable compensating or RF cable simulating characteristics Fig 7 9 1 Setting the RF gain slope ...

Page 79: ...al rms in order to optimize the transmission performance in terms of noise intermodulation and BER For details please refer to 5 3 Fig 7 10 1 Setting SAT OMItotrms of ES26 The SAT OMItotrms SAT OMIrms in the figure beyond is shown in Notes 1 SAT OMI nominal refers to a factory setting and cannot be changed by the user 2 SAT OMItotrms setting is only relevant in AGC on mode ...

Page 80: ...odulation and BER Fig 7 11 1 Setting SAT RF gain of ES26 Notes 1 The SAT RF gain setting is only relevant in AGC on mode 2 The setting range for SAT RF gain might change slightly from device to device due to production tolerances 3 Changing the RF gain changes the input sensitivity of the ES26 in AGC off mode 0 dB is the nominal SAT RF gain Setting the RF gain to e g 2 dB improves the input sensit...

Page 81: ... released Operating Manual rev 01 03 11 08 7 12 Changing SAT IF AGC Mode ES26 only The transmitter can be operated in non AGC manual as well as an automatic gain control mode Fig 7 12 1 Selecting the SAT AGC mode of the transmitter of ES26 ...

Page 82: ...al rev 01 03 11 08 7 13 Setting SAT IF Slope ES26 only The ES26 enables to change the slope of its internal SAT RF amplifier stages The slope equalizer follows a RF cable compensation or RF cable simulating characteristics Fig 7 13 1 Setting the SAT RF gain slope ...

Page 83: ... rev 01 03 11 08 7 14 Changing ITU Frequency The figure below shows how to change the ITU frequency optical wavelength of the transmitter in steps of 50 GHz up to 100 GHz not available for ES10L Fig 7 14 1 Changing the ITU frequency of the transmitter ES10XL ES26XL ...

Page 84: ... off the optical power but to decrease the optical power below a certain threshold e g 3 dBm in order to enable the supervision of the laser in standby mode and in order to enable the supervision of the fiber link between the ES10 ES26 and the subsequent EDFA or RX 2 ON The transmitter output power is always on default factory setting 3 ON Standby on alarm The transmitter output power is on as lon...

Page 85: ...h ES10 ES26 have to be connected and the master slave settings according to 7 17 have to be chosen Note The requirements for an alarm condition can be set by adjusting the alarms thresholds as explained in 7 18 7 16 Changing Regulation Mode The figure below shows how to change the CSO regulation mode of the transmitter not available for ES10L For details please refer to 3 2 Fig 7 16 1 Changing the...

Page 86: ...ES10 ES26 The I O port No 0 can be set either to be an output port where 4 modes of operation are available active low active high default factory setting redundant master irreversible or redundant master fallback or being an input port which implies the redundant slave mode The table below shows the mode of operation and the impact on I O port No 0 ...

Page 87: ...be connected to the corresponding I O port No 0 of the redundant transmitter which is set into redundant slave mode Redundant master fallback In case of any alarm which arises in case any of the alarm thresholds has been reached or due to an internal error the I O port becomes high In case the alarm condition disappears the transmitter will go back into normal operation which will set the connecte...

Page 88: ...m sleeping stand by mode If the cable between the master ES10 ES26 and the slave is cut or removed the slave device will go from sleeping stand by mode into normal operation due to the internal 100 kΩ pull up resistor If the power supply from the master ES10 ES26 is removed completely the slave device will go from sleeping stand by mode into normal operation immediately Note The slave transmitter ...

Page 89: ... whether a warning or alarm is shown or suppressed on I O port 0 The menu is shown in the picture below Fig 7 18 1 Setting the alarm warning mask for the output port of ES10 ES26 With this feature all warnings alarms of the ES10 ES26 can be either enabled or disabled by the user in relation to the output 0 port If the output mask is applied a notify message will be shown on the status menu screen ...

Page 90: ...eleased Operating Manual rev 01 03 11 08 7 19 Changing RF Input Alarm Mode The figure below shows how to change the RF input alarming mode of the transmitter not available for ES10L Fig 7 19 1 Changing the RF Input Alarming Mode of ES10 ES26 ...

Page 91: ...ot tones By setting the channel spacing to the correct value ref to 5 3 1 the CSO control loop will operate with utmost performance The picture below shows how to set the channel spacing Fig 7 20 1 Setting the channel spacing of ES10 ES26 NTSC channel plans in general provide a 6 MHz spacing PAL D and CENELEC channel plans in general show an 8 MHz spacing In Europe also 7 MHz spacing is used in so...

Page 92: ...ce The ES10 ES26 allows setting an event mask which determines whether a warning or alarm or a notification is shown or suppressed in the Webserver status screen as well as transmitted via the SNMP interface The menu is shown in the two following figures Fig 7 21 1 Setting the event mask for the Webserver and SNMP interface of ES10 ES26 ...

Page 93: ...ver and SNMP interface of ES10 ES26 With this feature all warnings alarms of the ES10 ES26 can be either enabled or disabled by the user in relation to the LEDs on the frontpanel the Webserver status screen and SNMP interface If the alarm warning mask is applied a notify message will be shown on the status menu screen ref to 6 9 ...

Page 94: ...ated omi AGC off is higher than the alarm limit 7 RF_SIGNAL_LOSS IF RF INPUT LOW ALARM is disabled and RF signal is lower then typical 17 dBm guaranteed 16 dBm 8 SAT_RF_SIGNAL_LOSS SAT RF signal is lower then 12 dBm 26 BOOTLOADER_RUNNING_NO_APPLIC ATION_FIRMWARE No application firmware loaded f ex After failed firmware update 27 CONNECTION_LOST_NO_RESPONSE_ FROM_DEVICE Device connected to the mana...

Page 95: ...GC on or the calculated omi AGC off is higher than the warning limit 16 3 3V_LOW_WARNING Supply 3 3V is lower than the warning limit 17 3 3V_HIGH_WARNING Supply 3 3V is higher than the warning limit 18 5V_LOW_WARNING Supply 5V is lower than the warning limit 19 5V_HIGH_WARNING Supply 5V is higher than the warning limit 20 5V_LOW_WARNING Supply 5V is lower than the warning limit 21 5V_HIGH_WARNING ...

Page 96: ...s The two limits menus of the ES10 ES26 determine what deviations from the nominal values of some of the operating conditions of the transmitter lead to either warning or alarm messages In order to avoid inadequate changes some settings are factory settings only Fig 7 24 1 Limits menu of ES10 ES26 ...

Page 97: ...n and optical output power can be set by the customer It is recommended to be very careful in setting the alarm thresholds in order to avoid meaningless alarms e g due to temperature changes etc For the output power warning a range of at least 1 dB is recommended Note The settings range for the alarms thresholds for RF input RF gain and OMItotrms might change slightly from device to device due to ...

Page 98: ...ES10 ES26 Page 98 104 Document status released Operating Manual rev 01 03 11 08 Fig 7 24 3 Limits 2 menu of ES10 ES26 Note All settings of the limits 2 menu are factory settings only ...

Page 99: ...aliasname and some user data may be edited The aliasname occurs in the Devices tree of all Webbrowser displays as well as in the LCD Fig 7 25 1 Properties menu of ES10 ES26 The miscellaneous button can be used to request either a reset to factory settings and cold start reset of the transmitter cold start Note Be very careful in executing these reset commands since they force cold start situation ...

Page 100: ...be considered for a proper functioning of the EMS server 1 Physical limitations For the RJ 45 cable a CAT6 or better data cable is recommended The length of the cable should be chosen as short as possible A distance of 10 m should not be exceeded anyway 2 General limitations A maximum of 48 devices can be managed by one NEC 3 In order to get a correct display of the rackview function of the NEC th...

Page 101: ... performance Avoid bending losses of fiber optic cables Since optical transmission on 1550 nm significantly more sensitive to bending losses it is very important to avoid narrow curvatures Use a proper levelled flat RF input signal The flatness of the input signal e g 1 dB will directly result in the same variation of CNR CSO and CTB in this example 1 dB Be careful to understand all nonlinearities...

Page 102: ... of optical transmitter ES10 11 1 2 Hardware Releases for ES10L XL b versions Rel Date Description 3 0 June 2008 First delivered release of optical transmitter ES10 11 1 3 Hardware Releases for ES26XL a versions Rel Date Description 3 0 June 2008 First delivered release of optical transmitter ES26 11 1 4 Hardware Releases for ES26XL b versions Rel Date Description 3 0 June 2008 First delivered rel...

Page 103: ...3 0 June 2008 First delivered release of optical transmitter ES10 ES26 11 2 2 Application Software Releases for ES10 ES26XL b versions Rel Date Description 3 0 June 2008 First delivered release of optical transmitter ES10 ES26 3 1 July 2008 Start up faster 11 2 3 Bootloader Software Releases for ES10 ES26 Rel Date Description 1 5 June 2008 First delivered release of optical transmitter ES10 ES26 ...

Page 104: ...release of optical transmitter ES10 ES26 11 3 2 NEC Application Software Releases for Embedded NEC ESxa versions Rel Date Description 2 4 June 2008 First delivered release of optical transmitter ES10 ES26 2 4 2 Sep 2008 With Firefox 3 no file uploads were possible bug in webserver fixed 11 3 3 NEC Bootloader Software Releases for Embedded NEC ESxa versions Rel Date Description 1 7 June 2008 First ...

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