MDO-240
Contents
1. INMIDAS TEC MDO 240 PDH user s manual Beijing Inmidas Technology Co Ltd http www inmidas com cn Tel 86 010 5 1662447 MDO 240 user manual Content Chapter 1 Prod ct Ov Cry 16 W sessirnar aa A aT A a A T AA R R a 3 GE S EI oe OK Character EEE cnaieatecente tne tena ieee sagem aecetetaceneeetee 3 2 1 Standalone Transceiver MDO 240 8 EL PDE s sssnsggemsgessgemssedsgenng eddemmg edder 3 2 2 In station Rack Card Transceiver MDO 240 8xE1 PDH rrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 4 2 3 In station Multiservice Transmission Platform rrrrrrrrrrrrrrrrrrrrrrrrnnrrrrrnrrrrrnrrnsnrsnsnnsnnnnnsnnsnnnnnnnnnnnnssne 4 Te 2 A Sasa a cetaceans ec cece cetera EE 5 TN DNT e eee ene ene Re ee eee re ae er ee er eee ee 5 3 2 System IDES 0 EEE EN RERE AE EAE A AE AEREA EEE 6 Bde P aenea OET O R E E E E E EEE 6 33 Front Back Panel and Indicator Light occcieccdenedcievenedotedcnedctavenadesadcncdotancbestspasssasusunsecennuedsacapereseeiaveaudolencets 6 3 3 2 In station Multiservice Transmission Platform panel rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrnrrnrnnnnnrrnrnrnrrnnnnnnne 8 PINT 10 Chapter 4 Equipment Installation and Maintenance Input Power 48V Case rrrrrrrnrnnrnrrarnrsrrsrnrrsrrsssssssrsssnenn 11 4 1 Equipment Packaging and Observational Check rrrrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 11 4 2 Equipment Installation sssss2nn2. wall hanging desktop and Rack mount are supported e Wall hanging Installation Processing I Select a flat and firm position for installation 2 Take out the Position setting Hole Card from ss the packing chest and shown on the right punching holes on the ition setting H le Card alignment cross hole distance 120mm either transversely or vertically 3 Insert the expansion bolt P 3mm into the hole 9 4 Screw on suitable nut on the bolt head and align with the position setting hole on the equipment and stick gently Be careful not let the emerged bolt head contact with the circuits peep inside the chassis a Desktop Installation Position setting Processing 44 4 I Upset the equipment as shown in left figure and stick sponge cushions by removing the stick paper on four circular grooves as shown in right figure Stick sponge cushions could be found in accessory box 2 Turn it up and place at proper position avoiding striking Rack Mount Installation POWER SWITCH MONITOR ANTISTATIC FLOORBOARD http www inmidas com cn I Ul QU U I V J LUUL TT Page 12 of 18 MDO 240 user manual Rack Mount MDO 240 Equipments connection 4 3 Overall Installation Place or fix the equipment according to the processing mentioned above Check the fuse seat FUSE to be undamaged amp Connect the power lines firstly determine the positive and negative line is working ground
3. and perfect auxiliary functions such as military mobile telecom electric power road and airline point to point and point to multipoint private wire networks One rack offers up to 12 slots supports 12 24 different optic directions Each slot offers 16 E1 8 E1 or double 4E1 interfaces I network management and office telephone slot optional 1 1 redundant dual power supply Far end equipment offers frame rack laptop and wall sets Support centralized full network management optional Ultra stable high reliability and cost performance 2 3 In station Multiservice Transmission Platform a gt es oon gt F P X an gt amp til eececece s44040040 Dar server eececece EEIEIE SEE 00000000 E e E e 00000006 eecceces o0000000 a ME Eg S fl se ma A i aaue uar W w ay In station Multiservice Transmission Platform a well designed solution for telecom carriers to solve Doaubk 4EI General slot management Front view of rack problems and requests meted in new network constructing and existing network renovating can satisfy service needs in edge network with a strong networking ability The system owns autonomous core technology and originality innovated architecture and can solve the problem of resource waste caused by different transmission volumes in different points during the point to point service transmission Inserting d
4. same time Function explanation El no loop default No 1 El signal loop No 2 El signal loop No 3 El signal loop No 4 El signal loop No 5 El signal loop No 6 El signal loop No 7 El signal loop No 8 El signal loop Invalid All 8 Els loop others Seventh bit MASK Mask possible pseudo alarms of other unused E1 branches masking is effect if the bit http www inmidas com cn Tel 86 010 5 1662447 Page 9 of 18 MDO 240 user manual is set Up and invalid if the bit is set OFF Eighth bit GLCR Global alarm mode switch Real time global alarm displaying mode is effect if the bit is set Up and global alarm locking mode is effect if the bit is set OFF Ninth S H Network management software control mode Panel hardware control mode switch masking 1s effect if the bit is set Up and invalid if the bit is set OFF Panel hardware control mode is effect if the bit is set Up and Network management software control mode is effect if the bit is set OFF Under the later mode all configurations are controlled by network management software When the equipments are controlled by network management software the control mode must be in Network management software control mode Tenth LOSCV Elsignal mode alarm switch Lost alarm displaying mode is effect if the bit is set Right and HDB3 code violation alarm mode is effect if the bit is set OFF Eleventh Twelfth NC Holding bits set high push right Button MUTE SOUND Voice a
5. uses SNMP protocol Each network management unit has IP address and management information of far end units can be sent to local network management center through LAN and WAN Monitoring the whole network can be realized high speedly and conveniently by computer with NIC card and units with 10Base T interface gt RS485 232 network management module NMS 485 Transmission and receiving port is 10Base T interface and all NMS 485 equipments are cascaded via 485 bus This configuration overcomes the problem of single trouble point one unit trouble does not affect monitoring the others So just one RS485 transmission channel is needed between adjacent units when http www inmidas com cn Tel 86 010 5 1662447 Page 15 of 18 MDO 240 user manual NMS 485 equipments finish centralizing network management And Computers in the network management center can realize monitoring the whole network just through one RS232 series line So this is very cost effective and saves valuable investment and offers a perfect solution to manage large quantity transceivers for carriers For more information please consulting User s Guide for NMS Transceiver Version network management system X View V5 0 X View V5 20 e POWER utilizing high quality modular power unit allowing broad voltage fluttering with well isolation and stable operation DC 48V allowing DC 38V 72V 220V allowing AC 175V 265V Power Supply AC e ENVIROMENTAL can be
6. Fiber interface FIBER1 Optic interface TX OUT is optical signal output port RX IN is optical signal input port Attention Don t envisage the optical port for fear burning eyes Alarm indicator lights description PWR GREEN Voltage Normal PHO YELLOW Office Session Request LOA RED Local Alarm RMA YELLOW Remote Alarm OPL RED No light Received Alarm SYL RED Optical Frame Asynchronous E3 RED System Error Code gt 10 3 E6 RED System Error Code 10 6 EILI RED Fist E1 Break Code Alarm EIL2 RED Second E1 Break Code Alarm EIL3 RED Third E1 Break Code Alarm EIL4 RED Fourth E1 Break Code Alarm EILS RED Fifth E1 Break Code Alarm EIL6 RED Sixth E1 Break Code Alarm EIL7 RED Seventh El Break Code Alarm EILS RED Eighth E1 Break Code Alarm Control button There is a 12 bit tumbler switches under the indicator lights of the front panel The factory set value is 0 for up eight bits if OFF and 1 for below four bits if right Each bit is used as First bit LOOPS E1 Loop local Remote switch Remote mode when set this bit OFF and local when ON Second bit LOOPEN Loop enable switch Bits from the third to the sixth are not effect until the bit is set UP Third sixth bits LOOP3 0 E1 loop branch switch When the first loop is on E1L1 indicator light will be extinguished When the second loop is on E1L2 indicator light will be extinguished If the total 8 loops are on EIL1 8 indicator lights will be extinguished at the
7. GND connect it with the positive electrode and is 48V connect it with negative electrode Before the equipment is power on the working ground and protective ground should be set separately and in good working condition Open the power switch If the power light ON is on it means the voltage is normal Connect the optical fiber make sure the fiber thrum is cleaned if not clean it with industrial alcohol Insert the FC SC jumper make sure the fiber connectors are butted each other and then twist the fiber sheathing optical fiber bending radius 50mm If OPL light is extinguished it means the transceiver has received optical signal from corresponding port Do not observe fiber plug socket with naked eyes closely Insert 2M signal lines shift ELLOS 1 2 3 4 5 8 toggle switch to ON to open 8 branch alarm signals Insert IN 1 2 3 4 5 8 sequentially following the relation IN1 OUT1 IN2 OUT2 IN15 OUTI5and IN8 OUTS8 If the EIL1 E1L2 E1L3 E1L alarm lights on the front panel extinguish in turn when power is on it means all 2m branch signals have entered MDO 240 Do not enter step 8 operation until the equipment has been confirmed working correctly Connect monitor interface and computer PIN 8 7 6 5 are separately ACR B R Z T and Y T One computer can be connected with several MDO 240 for RS485 voltage level is used on their manage interfaces But just one MDO 240 may be the master The master s two lab
8. MDO 240 equipments at the same time PHONE service interface optional Offers one office telephone to the make troubleshooting and contacting with management center more conveniently Knob down to make a call and during the session pushing down to disconnect and ejecting to hold on Power Interface Power switch POWER TON O OFF Power supply 220V AC 48V DC power can be offered if required Conversion switch is used to make changes between 220V AC and 48V DC by turning the knob to the corresponding side Attention AC220V and DC 48V can not work simultaneously Invariable switch 220V AC 48V DC power can be offered if required and can work simultaneously with secondary power supply Chapter 4 Equipment Installation and Maintenance Input Power 48V Case 4 1 Equipment Packaging and Observational Check When ordered equipments arrive check whether shipping packages are damaged If the damage condition is severe please contact with the after sale service department to solve the problem as quick as possible Open the package check whether devices and appendages are in concordance with equipment list And if the outside of the chassis is broken please contact with installation engineer or the after sale service http www inmidas com cn Tel 86 010 5 1662447 Page 11 of 18 MDO 240 user manual department directly to replace in time 4 2 Equipment Installation Installation ways such as rack strip
9. corresponding jumpers or tumbler switches And the transmission interfaces can also be selected by using different adapters The product can build economical flexible multiservice transmission network and be used in connecting digital transmission network such as frame relay between switch centers LAN data transmission 2M access leasing service for large customer voice access of residential district intelligent housing estate and mobile base station As a mature technical product the configuration of MDO 240 system s inner software and hardware is both modularized The hardware portion utilizes large scale FPGA circuits CPLD and CPU integrating the functions of coding decoding message interposing and warning which makes the circuit simpler and enhances its reliability The electric interface adopts large scale ASIC circuit which integrating digital sample clock digital smoothing phase locked loop code decode Therefore its technical characteristics are superior to corresponding ITU T Recommendations Chapter 2 Equipment Characteristic 2 1 Standalone Transceiver MDO 240 8xE1 PDH MDO 240 compact optical transceiver a combination of communication technology and computer technology is suitable for point to point low throughput application fields such as switch far end transportation and fiber optic loop The product is attractive for its exquisite figure and versatile functions and is suitable for applications that small transportat
10. d avoid lightning stroke Before the equipment is power on the working ground and protective ground should be set separately and in good working order 4 7 Troubleshooting If an alarm occurs debug the alarm position according to the alarm information on the alarm panel whether it is a equipment failure or transmission line problem and handle correspondingly When local and far end are interconnected RADE yellow is extinguished in normal condition and is always on if there is a far end alarm Power Failure Replace power supply Power switch noton Open power switch abnormal Inner fuse melt Replace fuse Electric Interface Error Adoptable method Coax thrum failure Adjust coax thrum 2M Interface alarm Branch alarm not masked Mast the branch alarm Optical Interface Error Transmission fiber error if No light alarm on Self loop normal fiber Replace transmission fibro Replace equipment and or contact with supplier Service Error Possible Causes Adoptable method Optical signal too weak Measure optical power Nels etanuet off line or service error Replace fix telephone inaccessible Monitor System Failure Equipment icons are gray and Measure electrical voltage Transceiver power off and or simulated power light is off on RS485 line broken and or communication the monitor user interface wires http www inmidas com cn Tel 86 010 5 1662447 Page 14 of 18 MDO 240 user manual Equipme
11. done by tunable switch on the panel quickly and directly Environment temperature operation voltage polling condition can be digitally displayed and environment observation and network management monitor are integrated Can be used as service platform supporting tens of slots produced by our company and satisfying the needs of network construction and service continuation Double insurance design thoroughly preventing the possible affects produced by inserting and pulling out slots Centralized alarm all alarm conditions of the system can be displayed by centralized alarm indicators on the rack Chapter 3 Features 3 1 System Schematic Diagram DS Ka Me AS xo N 16 8 4 x El interface interface I synchronism serial port 2M Idata channel 378K Thick film LED Alarm and monitor CPLD MCU interface http www inmidas com cn Tel 86 010 5 1662447 Page 5 of 18 MDO 240 user manual Schematic Diagram of System Structure 3 2 System Description MDO 240 is veneer configuration and can be separated into 6 different units according to their functions There are A 2 8 MUX unit B code decode unit C optic interface unit D office unit E monitor unit F secondary power unit And among them the A B C F units compose the basic part A B achieve 8 2048kbit s electric signals can be reversibly transferred into laser signals C achieves electrical and optic joint and separate fram
12. e while the other two units are auxiliary 3 2 1 Principle of Operation 2 8 MUX unit is composed by a large scale ASIC circuit and several other peripheral devices and can multiplex 8 2048kbit s HDB3 signals either from switch or PCM module into I 8448kbit s NRZ digital signal flow and vice versa e code decode unit the core part of the whole equipment is composed by two 20 000 gate FPGA chips This unit compound the NRZ monitor office and alarm signals and output a single NRZ signal to drive the laser And at the same time function inversely Optic unit adopt optic receive and transfer joint module strictness great power send receive delicacy receive and sent independent completely office unit like a PCM user interface block can sample quantify and code the voice signals from the telephone to be a 64k NRZ digital signal and finish signal analogue digital conversation Monitor unit has two functions l collecting alarms signals 2 realizing the communication between transceiver and computer It can observe visually correctly and real timely the function state of every cell among the network via the centralized monitor system and can send command signals from monitor computer to the cells such as shut down alarm and far end branch circuit self loop Secondary power as a power module finish the conversation of DC 48V 24V to 5V 5V or AC 220V to 48 5V 24V 3 3 Front Back Panel and Indicator Light S
13. el bits should be set ON and the others OFF Clean stable work environment and firm installation should be offered especially for desktop and wall hanging installations 4 4 Matters Need Attention Severe vibration and mechanical injury should be avoided during the transportation and installation The fibers should be placed properly in the room and their bending radius must be larger than 50mm Check voltage magnitude and polarity conscientiously make sure they are in accord with what labeled on the back panel to avoid possible permanent damage The fiber junction must be cleaned by using industrial alcohol to avoid pollution otherwise it will affect the transportation The fiber connector must be adjusted when being used in order to avoiding possible power loss 4 5 Equipment Maintenance The equipment has been adjusted to be optimum condition The chassis with all function interfaces on front and back panels should not be opened by unprofessional technical personnel http www inmidas com cn Tel 86 010 5 1662447 Page 13 of 18 MDO 240 user manual 4 6 Room and Ground Requirement The room should be designed and placed for people in and out and equipments carrying The environment should keep dry clean and well ventilated Electrostatic prevention methods should be adopted during the equipment installation and maintenance The chassis should be connected to the ground to strength anti interference ability an
14. ers All 8 Els loop Seventh bit MASK Mask possible pseudo alarms of other unused E1 branches masking is effect if the bit is set Up and invalid if the bit is set OFF Eighth bit GLCR Global alarm mode switch Real time global alarm displaying mode is effect if the bit is set Up and global alarm locking mode is effect if the bit is set OFF Ninth S H Network management software control mode Panel hardware control mode switch masking is effect if the bit is set Up and invalid if the bit is set OFF Panel hardware control mode is effect if the bit is set Up and Network management software control mode is effect if the bit is set OFF Under the later mode all configurations are controlled by network management software When the equipments are controlled by network management software the control mode must be in Network management software control mode Tenth L C Elsignal mode alarm switch Lost alarm displaying mode is effect if the bit is set Up and HDB3 http www inmidas com cn Tel 86 010 51662447 Page 7 of 18 MDO 240 user manual code violation alarm mode is effect if the bit is set OFF Eleventh twelfth bit M S Network monitor Master Aux setting switch One computer can monitor several optical transceivers if RS485 electrical level is used on their network management interfaces But just one could operate as master and its corresponding bits should be set ON and the other optical transceivers should be
15. ifferent service slots can satisfy the request of different transmission volumes By doing so different access services can be provided and it makes networking more flexible The enhanced network management function and more friendly management GUI will make you feel comfortable to operation The function of mouse follow up suggestion let you finish complex configuration http www inmidas com cn Tel 86 010 5 1662447 Page 4 of 18 MDO 240 user manual management and monitor easily without studying You can also enjoy the reliable practical rapid personal and perfect combination through tens of innovated functions and designs Flexible networking hybridly inserting slots of different volume and service supported High port density supporting maximum 24 light directions and 192 E1 volumes Real SNMP powerful function with simple topology hierarchy supporting centralized whole network management Stable system with hot backup 1 1 redundant dual power supply exquisite figure 6U 19 standard rack space saving Support multiform network management configuration RS485 Ethernet etc suitable for different transmission network efficient office service one office port in In station side supports office session from 24 different directions and can be switched at any time In station Remote monitor can be switched at any time alarm statuses are clear at a glance and debugging and fault detecting can be conveniently done All setting can be
16. ion volume high reliable and perfect auxiliary function are needed such as military telecom mobile electric power road and airline point to point private wire networks gt Highly integration of hardware circuits ultra small size of overall equipment gt With network management interface offering complete solutions to centralized optical transceivers equipments management to carrier services providers 2 048Mbit s port using digital clock recover circuit and digital smoothing phase locked loop Complete functions of centralized monitor and audible and light alarm Anti interference stable and reliable performance easy to install and maintain 220V AC 48V DC power can be offered VV V Y http www inmidas com cn Tel 86 010 5 1662447 Page 3 of 18 MDO 240 user manual 2 2 In station Rack Card Transceiver MDO 240 8xE1 PDH Rack Card Transceiver MDO 240 utilizes rack configuration to increase spatial utilization ratio and improves the performance of network management system 16XE1 8XEI and dual 4XE1 slots can be inserted hybridly offering users a more convenient effective and quicker way to establish and manage the whole networks in the point to point networking Each slot has the same functions like 16XE1 8X E1 4X El terminal transceiver desk top Therefore they can be mutually exchanged and used to build up point to point and point to multipoint networks with small transportation volume large net cell number high reliable
17. larm switch If set ON alarm with sound If set OFF whether there is a alarm signal or not the buzzer will not work But the switch does not affect the prompt buzzing of the office telephone LOA RMA Local Remote indicator switch If pushed down the panel will display the operation alarm condition of remote transceivers and if ejected the panel will display the operation alarm condition of local transceivers Tumbler switch on the bottom panel S5 The second 1 8 bits correspond to impedance matching of E1 1 8 interfaces If set ON impedance is 75 Q If set OFF impedance is 1209 3 4 Peripheral Interface The peripheral interfaces and relevant functions of MDO 240 are optical interface electrical interface monitor interface office interface and power interface Optical Interface The interface with a FIBER label on the back panel means optical interface Please select attachment plug matching with the optical interface type by referencing product information label printed on the packing box Optical signals are inputted from IN port and outputted from OUT port Be careful when inserting the fiber jumper and do not let the connector be polluted The fiber junction must be cleaned by using absolute alcohol otherwise it will affect the transportation The fiber connector must be adjusted when being used in order to avoiding possible power loss the fibers should be placed properly and their bending radius must be larger than 50mm Elec
18. nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 12 he OCT E aa O EE O EE 13 MENING 13 4 5 Equipment Maintenance ooonnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 13 4 6 Room and Ground Re Quite ment LLusameemssesmeeedsedee EEEE E 14 2 Troubles honlo lenene 14 Chapter 3 Technical NNN 15 Appendix 1 Diagram of 2M coaxial plug preparation rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrsnssnssssnne 17 Appendix 2 MDO 240 DB37 Input Output Difination erorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrsrrsrrrnssenssnnsnnnnnnsnnnnnnne 18 http www inmidas com cn Tel 86 010 51662447 Page 2 of 18 MDO 240 user manual Chapter I Product Overview MDO 240 optical transceiver is a highly integrated and optimized product offering 8 standard E1 interfaces and a service phone line and can provide complete alarm and network management functions as well as the functions such as self testing and E1 loop testing The provided alarm signals include LOS LOF 10 3error code 10 6error code alarm in line side and illegal LOS and HDB3 coding alarm in E1 branch with alarming sound We have improved various designs to make it a new generation transportation product with outstanding transmission peculiarities and be more stable delicate and cost effective The transmission impedances can be matched simply by setting the
19. nt Round loop and obscuration can not be realized Equipment is offline or be set Check the equipment or change it back to software through network management in hardware control state control state software Chapter 5 Technical Specification e ELECTRICAL 8 input and 8 output interfaces are conformity with ITU T G 703 recommendation Input are 8 homologous or heterogenous 2 048Mbit s HDB3 codes and output are 2 048Mbit s HDB3 codes Output Fluttering agrees with ITU T G823 and ITU T G 742 recommendation ITU T G 742 6 823 e OPTICAL Receiving sensitivity lt 38dBm BERS lt 10 11 double lt 33dBm BER lt 10 11 signal e NETWORK MANAGEMENT optional NMS Network Management Subsystem is a new generation network management product based on GUI interface and SNMP protocol integrating database service information management and operation interface into one system It can realize receiving order requests from end users and analyzing recording orders to FMCP and dealing with FMCP resultant information as well as task scheduling and resource managing Network management module can be divided into two different types according to the ways of users monitor methods One is Ethernet transmission network management module NMS ETH and another is RS485 232 network management module NMS 485 gt Ethernet transmission network management module NMS ETH Transmission and receiving port is 10Base T interface and
20. operated correctly and stably at a large temperature range or in rough conditions 10 95 35 C No corrosive and solvent Gas no fluty dust and magnetic field interference e MECHANICAL PARAMETER Standalone 19 440mm X 40mm X 150mm 1 2 kg Rack Mount 19 483mm X 270mm X 250mm 11 0kg full deploy Rack Type EIA 19 http www inmidas com cn Tel 86 010 5 1662447 Page 16 of 18 MDO 240 user manual Appendix 1 Diagram of 2M coaxial plug preparation A Tools crimper scissors electric iron soldering tin etc B Micro coaxial head CC3 8 including l out sleeve 2 deadring 3 juncton 4 rubber hat C Operation Procedure cover thin coax cable SYV 75 2 1 with l out sleeve and 2 dead ring sequentially strip the coax sheath about 10mm long using scissors Be careful do not to damage copper mesh D Open copper mesh remove plastic filler about 5mm long outside the core cut the core neatly and let 3mm long plastic filler to be bared Then insert it into the junction carefully and the core should be inserted into the oblique slotted hole of the junction Weld the core firmly with electric iron and win wire Be careful not to make rosin joints or touch ektexine of the junction E Cover the junction s tail with the copper mesh again and with the dead ring then cut the extra copper mesh s sent us F Insert the dead ring to reach the jaw of the crimper where there is a label of 151 and press i
21. set OFF Thirteenth to sixteenth bits ADDR Node address auxiliary switch used in network management Low bits in front follow high bits They can represent 0 to 15 using binary encoding e NM port interface at the front panel Debugging the equipment and updating the software e Button gt MUTE SOUND Voice alarm switch If set ON alarm with sound If set OFF whether there is a alarm signal or not the buzzer will not work But the switch does not affect the prompt buzzing of the office telephone gt LO RM Local Remote indicator switch If pushed down the panel will display the operation alarm condition of remote transceivers and if ejected the panel will display the operation alarm condition of local transceivers Tumbler switch on the bottom panel indicate impedance matching of adjacent eight E1 interfaces S6 The first bit correspond to impedance matching of E1 1 4 interfaces If set ON grounding If set OFF not ground The second bit correspond to impedance matching of E1 5 8 interfaces If set ON grounding If set OFF not ground S5 The second 1 8 bits correspond to impedance matching of E1 1 8 interfaces If set ON impedance is 75 Q If set OFF impedance is 120 2 3 3 2 In station Multiservice Transmission Platform panel oe Se FEE r ig mmm a e o pr EE lg re pu http www inmidas com cn Tel 86 010 5 1662447 Page 8 of 18 MDO 240 user manual 8E1 PDH panel
22. t firmly If the out sleeve cannot be swung to the junction turn 90 degree clockwise and try again G Swing the out sleeve to the junction H 2M coaxial plug preparation finished I Insert the plug into CC3 K3 adapter and the adapter will lock it automatically If need to pull it out push down the red hat on the adapter Tel 86 010 5 1662447 Page 17 of 18 MDO 240 user manual Appendix 2 MDO 240 DB37 Input Output Difination PIN PIN PIN PIN MV DEFINATI ND DEFINATI T _ ON ao ON Attention Considering that professional technology and experience are needed to operate and maintain network we strongly suggest that only certified technician has the right to manage the network So if there is any technical problem or related question please contact with your supplier and thoroughly describe the nature of the problem Thank you for your reading http www inmidas com cn Tel 86 010 5 1662447 Page 18 of 18
23. tandalone standard MDO 240 19 outline and front back panel imi nii GE FAT HA Wy I ET bh E z E EE EE mist gt ost 30 west l Se i i r r m LF E a ia a HF Dm s Pt a T e 4 e Alarm light meaning YELLOW Office Session Request http www inmidas com cn Tel 86 010 51662447 Page 6 of 18 MDO 240 user manual PWR GREEN Voltage Normal RMA YELLOW Far end Alarm PL 00900000 mIm alo Control switch There are two 8 bit tumbler switches on the left of the front panel The factory set value is 0 for left eight bits if OFF and 1 for right eight bits if UP Each bit is used as First bit LOOPS E1 Loop local Remote switch Remote mode when set this bit OFF and local when ON Second bit LOOPEN Loop enable switch Bits from the third to the sixth are not effect until the bit is set UP Third sixth bits LOOP3 0 E1 loop branch switch When the first loop is on EIL1 indicator light will be extinguished When the second loop is on E1L2 indicator light will be extinguished If the total 8 loops are on EIL1 8 indicator lights will be extinguished at the same time Function explanation ie aS El no loop default No 1 El signal loop No 2 El signal loop No 3 El signal loop No 4 El signal loop No 5 El signal loop No 6 El signal loop No 7 El signal loop No 8 El signal loop Invalid oth
24. trical Interface E1 port locates on the standard DB37 mother interface on the right of the back panel Pin description please see the reference 2 Equilibrium 75Q and non equilibrium 120Q are offered and when non equilibrium transportation mode is used Please choose 75Q coax adapter junction like this p s J es 4 KEKE I MDO 240 can support up to 8 standard G 703 signals 2048kbit s INI IN2 IN8 connect corresponding 8 input signals and OUT1 0UT2 OUT 8 connect 8 output signals when equilibrium transportation mode is used Please choose 1200 coax DB 37 mother adapter http www inmidas com cn Tel 86 010 51662447 Page 10 of 18 MDO 240 user manual junction like the left below or order RJ45 adapter like the right below 1 Ave Pin description please see the reference 2 Minimum number DB37 butt cock lines are 4X 4 16 each 4 lines is connected with 1 E1 port Please pay attention to their corresponding relationship and the length of the butt cock lines should be declared when ordering or could be produced according to the definition of the reference by users themselves Monitor Interface Named as NM PORT on the back panel as RJ45 port Its pin description is 8 7 6 5 as A R B R Z T Y T separately 1 2 3 4 5 6 7 8 TZZZC ZAZCZCZ ZtZ RJ45 pin description As the network management interface adopts RS485 voltage level one computer can be connected with several
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