MDC-4910 User Manual (Revision 01)
Contents
1. IRT SNMP Frame Ethernet Cable Ethernet Cable IRT modules fitted CDM with SMU 4000 oe el IRT SNMP Frame Ethernet Cable IRT SNMP Setup IRT Electronics Pty Ltd www irtelectronics com Page 12 of 14 Revision 01 MDC 4910 MDC 4910 SNMP Functions With the MDC 4910 installed in an IRT frame with SNMP capability the following SNMP functions are capable of being controlled and monitored by an SNMP Network Management System NMS presASI An indication of the current state of the ASI input notpres 1 present 2 pres8VSBrate 3 pres16VSBrate 4 presSMPTE310 An indication of the current state of the SMPTE310 input notpres 1 present 2 pres8VSBrate 3 pres16VSBrate 4 softwareVersion An indication of the software version in the format x y where x is the major revision number and y the minor firmwareVersion An indication of the firmware version of the main FPGA in the format x y where x is the major revision number and y the minor reset Unit reset control A set with a value of 2 sent to this OID will cause a system reset to occur When queried returns 0 Enable or Disable Traps to be sent when the status of the presASI variable changes notEnable 1 enabled 2 presASITrapEnable presSMPTE310TrapEnable Enable or Disable Traps to be sent when the status of the presSMPTE310 variable changes notEnable 1 enabled 2 IRT Electronics Pty Ltd2. A relay alarm indicates if there is an input data rate violation The MDC 4910 is designed to fit IRT s standard Eurocard frames and may be used alongside any other of IRT s Eurocards as well as in conjunction with IRT s ASI interface cards Standard features SMPTE 310M to ASI ASI to SMPTE 310M on the one card ATSC rates of 8 VSB and 16 VSB supported Automatic Input equalisation up to 200m NOTE 1 It is recommended that the SMPTE 310 input has a minimal cable length connected between it and the SMPTE 310 source to minimise input jitter also applicable on output IRT Electronics Pty Ltd www irtelectronics com Page 5 of 14 Revision 01 TECHNICAL SPECIFICATIONS Inputs Type 1 Data Rate Type 2 Data Rate Equalisation Output Type 1 Type 2 Alarm Output MAJOR MINOR Power Requirements Voltage Power consumption Other Temperature range Mechanical Finish Front panel Rear assembly Dimensions NOTE 2 MDC 4910 1 x SMPTE 310M 75Q 800 mVp p BNC connector Biphase Mark encoded for 8 VSB 19 393 Mb s or 16 VSB 38 785 Mb s 1 x ASI C 75O SMPTE 310M encoded rate 800 mVp p BNC connector 8 VSB 19 393 Mb s or 16 VSB 38 785 Mb s Automatic better than 200 metres at 270 Mb s for Belden 8281 or equivalent cable 1 x 800mVp p ASI C 75 O BNC connector 1 x SMPTE 310M 75 Q 800 mVp p BNC connector Open circuit on loss of sync on serial SMPTE 310M input or los
3. www irtelectronics com Page 13 of 14 Revision 01 MDC 4910 MAINTENANCE amp STORAGE Maintenance No regular maintenance is required Care however should be taken to ensure that all connectors are kept clean and free from contamination of any kind This is especially important in fibre optic equipment where cleanliness of optical connections is critical to performance Storage If the equipment is not to be used for an extended period it is recommended the whole unit be placed in a sealed plastic bag to prevent dust contamination In areas of high humidity a suitably sized bag of silica gel should be included to deter corrosion Where individual circuit cards are stored they should be placed in antistatic bags Proper antistatic procedures should be followed when inserting or removing cards from these bags WARRANTY amp SERVICE Equipment is covered by a limited warranty period of three years from date of first delivery unless contrary conditions apply under a particular contract of supply For situations when No Fault Found for repairs a minimum charge of 1 hour s labour at IRT s current labour charge rate will apply whether the equipment is within the warranty period or not Equipment warranty is limited to faults attributable to defects in original design or manufacture Warranty on components shall be extended by IRT only to the extent obtainable from the component supplier Equipment return Before arranging
4. ON unless proper precautions are observed All internal adjustments should only be made by suitably qualified personnel All operational adjustments are available externally without the need for removing covers or use of extender cards IRT Electronics Pty Ltd www irtelectronics com Page 4 of 14 Revision 01 MDC 4910 GENERAL DESCRIPTION BLOCK DIAGRAM MDC 4910 SIGNAL PATH SMPTE 310 Input 8 VSB 16VSB ASI Biphase Mark Encoded Output Signal E SMPTE 310 ASI Output INPUT 8 VSB 16VSB SMPTE 310 Encoded Rate Biphase Mark Encoded Signal E The MDC 4910 is part of a family of network interface adapters for converting between the commonly used MPEG2 Transport Stream formats for video distribution in the broadcast industry With the MDC 4910 a SMPTE 310M type signal at either 8 VSB 19 393 Mb s or 16 VSB 38 785 Mb s rate is converted to an ASI type of signal for transport over an ASI link The MDC 4910 also does the reciprocal conversion from an appropriate ASI encoded signal back to the original SMPTE 310M signal The MDC 4910 can be used at either transmission end or receiving end Both conversions operate independently from each other allowing the one card to be used in a bi directional link ASI input is automatically equalised for lengths of up to 200m of Belden 8281 or equivalent cable Front panel LEDs show when a valid SMPTE 310M signal or ASI signal is present and the rate at which it operates
5. device type This is a unique number specific to the model of managed device Other information relating to the device is also stored information such as alarm states controllable settings etc The MIB tree is organised in such a way that there will be no two MIB files with conflicting placements Normally an NMS polls an agent for information relating to the M B in a managed device to be sent back to the NMS When certain conditions are met within the MIB such as major alarm conditions for example the agent automatically sends what is known as a trap to the NMS without any prompting from the NMS This allows automatic notification of a predetermined event SNMP Block Diagram SNMP Agent SNMP Agent Protocol Engine SNMP Agent SNMP Agent Protocol Engine SNMP Agent SNMP Agent Protocol Engine IRT Electronics Pty Ltd www irtelectronics com Page 11 of 14 Revision 01 MDC 4910 SNMP with IRT Products IRT Electronics currently employs SNMPv1 with its SNMP capable frames The frame acts as an agent when fitted with a CDM xxxx module This module has its own designated slot next to the power supply so as to not affect the number of modules that the frame will take Communication between the NMS the frame and its loaded modules are via this CDM xxxx module Note that the NMS software is third party and not supplied by IRT Electronics Ethernet connection for SNMP operation is via an RJ45 connector on the rear of the fram
6. service ensure that the fault is in the unit to be serviced and not in associated equipment If possible confirm this by substitution Before returning equipment contact should be made with IRT or your local agent to determine whether the equipment can be serviced in the field or should be returned for repair The equipment should be properly packed for return observing antistatic procedures The following information should accompany the unit to be returned A fault report should be included indicating the nature of the fault The operating conditions under which the fault initially occurred Any additional information which may be of assistance in fault location and remedy A contact name and telephone and fax numbers Details of payment method for items not covered by warranty Full return address For situations when No Fault Found for repairs a minimum charge of 1 hour s labour will apply whether the equipment is within the warranty period or not Contact IRT for current hourly rate pol OOP a GaN gt Please note that all freight charges are the responsibility of the customer The equipment should be returned to the agent who originally supplied the equipment or where this is not possible to IRT directly Details of IRT s direct address can be found at IRT Electronics website Web address www irtelectronics com Email sales irtelectronics com IRT Electronics Pty Ltd www irtelectronics com Page 14 of
7. 09 MDC 4910 ELECTRONICS User Manual IRT Electronics Pty Ltd www irtelectronics com Revision 01 SMPTE 310 TO ASI NETWORK INTERFACE ADAPTER Revision History MDC 4910 Revision Date By Change Description Applicable to 00 05 08 2010 AL Original Issue Firmware version 2 MDC4910F6VOS6VO 01 04 07 2012 AL DIP Switch settings changed Firmware version gt MDC4910F6VOAS6VO IRT Electronics Pty Ltd www irtelectronics com Page 2 of 14 Revision 01 MDC 4910 USER MANUAL Table of Contents Section Page Revision History 2 Operational Safety 4 General Description 5 Technical Specifications 6 Configuration 7 Installation 8 Signal Connections 9 Front and rear layouts 10 SNMP What Is It 11 MDC 4910 SNMP Functions 13 Maintenance amp Storage 14 Warranty amp Service 14 Equipment return 14 This instruction book applies to firmware version gt MDC4910F6VOAS6VO IRT Electronics Pty Ltd www irtelectronics com Page 3 of 14 Revision 01 MDC 4910 OPERATIONAL SAFETY WARNING Operation of electronic equipment involves the use of voltages and currents that may be dangerous to human life Note that under certain conditions dangerous potentials may exist in some circuits when power controls are in the OFF position Maintenance personnel should observe all safety regulations Do not make any adjustments inside equipment with power
8. 14 Revision 01
9. e below the mains inlet Ethernet rate runs at either 10 baseT or 100 baseT Frame parameters such as Name Address and Location are set via an RS232 interface a D9 connector on the rear of the frame below the mains inlet A software terminal emulator such as Tera Term or HyperTerminal is used for setting and reading the parameters of the frame IRT modules that are SNMP compatible need a plug in SMU 4000 module with a program relevant to the module that it is plugged into Depending on the module besides the module identification parameters such as alarm states inputs and controls etc are communicated to the CDM xxxx agent via a data bus on the rear of the frame Thus the CDM xxxx collects information on what is loaded within the frame what positions they occupy and their current status for communication to the NMS when the NMS sends a request for information In the event of a major alarm from any of the SNMP compatible modules or power supplies a trap is automatically sent by the CDM xxxx agent to the NMS without any prompting by the NMS This alerts the operator to any fault conditions that may exist that need immediate attention O O L D FRU 4000 110 240 V 50 60 Hz FRAME 0 7 A max im RS232 2 oye D Alarm AS3260 approval no CS6346N Ass no 804692 7 O O IRT SNMP Connections IRT modules fitted CDM xxxx with SMU 4000 PSU s Se SS
10. elf and the CDM card SNMP Agent of the frame major and minor SNMP alarms that are reported to the CDM card of the frame can be disabled 4 SW4 8 operational for both major and minor SNMP alarms with earlier version of firmware MDC4910F6VOS6VO0 i e non A version where SW4 1 and SW4 2 are not used IRT Electronics Pty Ltd www irtelectronics com Page 7 of 14 Revision 01 MDC 4910 INSTALLATION Pre installation Handling This equipment may contain or be connected to static sensitive devices and proper static free handling precautions should be observed Where individual circuit cards are stored they should be placed in antistatic bags Proper antistatic procedures should be followed when inserting or removing cards from these bags Power AC mains supply Ensure that operating voltage of unit and local supply voltage match and that correct rating fuse is installed for local supply DC supply Ensure that the correct polarity is observed and that DC supply voltage is maintained within the operating range specified Earthing The earth path is dependent on the type of frame selected In every case particular care should be taken to ensure that the frame is connected to earth for safety reasons See frame manual for details Signal earth For safety reasons a connection is made between signal earth and chassis earth No attempt should be made to break this connection Installation in frame or chassis See de
11. hree key components Network Management Systems NMS agents and managed devices An NMS is the console through which the network administrator performs network management functions such as monitoring status e g alarm states and remote controlling of a set of managed devices One or more NMS s must exist on any managed network Generally the NMS is a computer running third party SNMP control software There are a number of third party SNMP software applications currently available on the market An NMS polls or communicates with an agent An agent is a network management software module that resides in a managed device An agent has local knowledge of management information and translates that information into a form compatible with SNMP The agent therefore acts as an interface between the NMS and the managed devices The NMS sends a request message and control commands for the managed devices to the agent which in turn sends a response message containing information about the managed devices back to the NMS A managed device contains an SNMP agent and resides on a managed network Managed devices collect and store management information and make this information available to NMS s using SNMP Managed device agent variables are organised in a tree structure known as a Management Information Base MIB Within the MIB are parameters pertaining to the managed device An Object Identifier OID number within the MIB defines the managed
12. larm Outputs Two relay alarm output states are provided via a phoenix style 4 pin plug Pin 3 is designated as Major pin 4 is designated as Minor and both pins 1 amp 2 are ground Both alarms are referenced to ground Alarm conditions are as follows Major Open circuit on loss of sync on serial SMPTE 310M input or loss of power Minor Open circuit on no valid input ASI stream present or loss of power IRT Electronics Pty Ltd www irtelectronics com Page 9 of 14 Revision 01 MDC 4910 Front amp rear panel connector diagrams Q MDC 4910 IRT SMPTE 310 INPUT 8VSB 16 VSB ASIIN 8 VSB ASI IN SMPTE 310 IN 16 VSB SKB W OUT2 SMPTE 310 OUT f ea ASI OUT IRT Electronics Pty Ltd www irtelectronics com Page 10 of 14 Revision 01 MDC 4910 SNMP What Is It SNMP stands for Simple Network Management Protocol It is an application layer protocol for managing IP Internet Protocol based systems SNMP enables system administrators to manage system performance and to find and solve system problems SNMP runs over UDP User Datagram Protocol which in turn runs over IP Three types of SNMP exist SNMP version 1 SNMPv1 SNMP version 2 SNMPv2 and SNMP version 3 SNMPv3 It is not the intention here to discuss the differences between various versions only to bring attention to the fact that IRT Electronics modules fitted with SNMP capability use SNMPv1 An SNMP managed network consists of t
13. s of power Open circuit on no valid input ASI stream present or loss of power 28 Vac CT 14 0 14 or 16 Vdc 6 VA 0 50 C ambient Suitable for mounting in IRT 19 rack chassis with input output and power connections on the rear panel Grey background black lettering amp red IRT logo Detachable silk screened PCB with direct mount connectors to Eurocard and external signals 6 HP x 3 Ux 220 mm IRT Eurocard It is recommended that the SMPTE 310 input has a minimal cable length connected between it and the SMPTE 310 source to minimise input jitter also applicable on output Due to our policy of continuing development these specifications are subject to change without notice IRT Electronics Pty Ltd www irtelectronics com Page 6 of 14 Revision 01 MDC 4910 CONFIGURATION The only user settings on the MDC 4910 are on the DIP switch SW4 as shown below Lm _ a W E a W ONOoRWND SW4 1 OFF Major Urgent SNMP alarms to frame operational SW4 1 ON Major Urgent SNMP alarms to frame non operational SW4 2 OFF Minor Non Urgent SNMP alarms to frame operational SW4 2 ON Minor Non Urgent SNMP alarms to frame non operational SW4 3 Not used SW4 4 Not used SW4 5 Not used SW4 6 Not used SW4 7 Not used SW4 8 Not used NOTE 3 When using TRAPS via SNMP depending on how system is set up in order to avoid double reporting of alarms via the MDC 4910 its
14. tails in separate manual for selected frame type IRT Electronics Pty Ltd www irtelectronics com Page 8 of 14 Revision 01 MDC 4910 Signal Connections SMPTE 310 Input The SMPTE 310 input port SK10 on the rear assembly is a 75Q terminated BNC connector for a SMPTE 310 encoded 8 VSB 19 393 Mb s or 16 VSB 38 785 Mb s signal only Use of high quality 750 coaxial cable Belden 8281 or equivalent is recommended Due to the nature of SMPTE 310 signals to minimise input jitter it is recommended that only a short length of cable be used between the SMPTE 310 signal source and the MDC 4910 SMPTE 310 input ASI Output One ASI output SK7 is provided as 75Q output BNC connectors The ASI output has a payload rate equivalent to the SMPTE 310 input rate 8 VSB 19 393 Mb s or 16 VSB 38 785 Mb s ASI Input The ASI input port SK1 on the rear assembly is a 75Q terminated BNC connector for an ASI encoded signal originally generated from the ASI output of a second source MDC 4910 unit Use of high quality 750 coaxial cable Belden 8281 or equivalent is recommended SMPTE 310 Output One SMPTE 310 output SK3 is provided as 750 output BNC connectors The SMPTE 310 output has a payload rate equivalent to the SMPTE 310 input rate of a second source MDC 4910 unit Due to the nature of SMPTE 310 signals it is recommended that only a short length of cable be used between the MDC 4910 output and the SMPTE 310 destination equipment A
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