MEM-4750 User Manual (Revision 00)
Contents
1. MEM 4750 SNMP Functions The following SNMP functions are capable of being controlled and monitored by an NMS sysDescr A description of the unit MEM 4750 ASI IP Converter sysObjectID irtMEM4750 sysUpTime Aindication of how long the unit has been running since its last power on or reset in Days Hours Minutes and Seconds sysName A 16 character writable system name Default set name MEM 4750 asi_to_TsolP_Alarms An indication of alarm status when in the ASI to TSoIP mode tsolP_to_ASI_Alarms An indication of alarm status when in the TSoIP to ASI mode control The current configuration setting s source as determined by DIP switch SW2 1 position 1 snmp Configuration set remotely via SNMP SW2 1 ON 2 pcbSwitches Configuration set locally via on board DIP switches SW2 1 OFF networkSettingsTable Information and control of the MEM 4750 Network Settings in table form subBoardConnection An indication of the connection status of the card to its sub board 1 disconnected Sub board not connected sub board undergoing reconfiguration 2 connected Sub board connected mode An indication and control of whether the card acts as a transmitter or receiver 1 asi_to_TsolP Transmitter mode ASI to TSoIP mode 2 tsolP_to_ASI Receiver mode TsolP to ASI mode 3 subBrdDisconnected No communication between card and its sub board cardIP An indication and control of the card s IP address cardSubn2. ON OFF 192 168 1 207 ON ON ON UDP Port SW1 1 SW1 2 SW1 3 8000 OFF OFF OFF 8001 OFF OFF ON 8002 OFF ON OFF 8003 OFF ON ON 8004 ON OFF OFF 8005 ON OFF ON 8006 ON ON OFF 8007 ON ON ON Transport Packets per IP SW1 4 SW1 5 SW1 6 1 OFF OFF OFF 1 OFF OFF ON 2 OFF ON OFF 3 OFF ON ON 4 ON OFF OFF 5 ON OFF ON 6 ON ON OFF 7 ON ON ON For Transmitter mode For Receiver mode Ethernet ASI to Ethernet to ASI SW1 7 OFF UDP Set packet size as per SW2 8 ON RTP Use incoming packet size SW1 8 OFF 188 byte packet size ON 204 byte packet size NOTE 3 Not applicable to Receiver mode of operation Ethernet to ASI 4 To UPD Port for Transmitter mode From UDP Port for Receiver mode IRT Electronics Pty Ltd www irtelectronics com Page 7 of 17 MEM 4750 Revision 00 MEM 4750 DIP Switch ASI to TSolP Transmitter Mode Quick Setup Guide SW2 1 OFF DIP switch control SW2 2 SW2 3 SW2 4 SW2 5 SW2 6 SW2 7 SW2 8 swi 1 SW1 2 SW1 3 SW1 4 SW1 5 SW1 6 SW1 7 SW1 8 OFF OFF ON OFF ON Card IP Address choice of 192 168 1 200 to 192 168 1 207 as per Configuration Table in Configuration section of this manual ASI to TSolP Transmitter Mode Destination IP Address choice of 192 168 1 200 to 192 168 1 207 as per Configuration Table in Configuration section of this manual To UDP port number choice of 8000 to 8007 as per Configuration Table in Configuration section of this manua
3. 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 details in separate manual for selected frame type ASI Signal Connection On the rear assembly is a single 75 Q BNC connector that is used as either an ASI input or an ASI output depending on how the MEM 4750 card has been set up either as an ASI to TSoIP converter or a TSoIP to ASI converter The source or load equipment must be of 75 Q impedance Input cable equalisation is automatic for up to 250m of high quality 75Q coaxial cable Belden 8281 or equivalent ASI transport stream bitrates are rated from 0 01 to 214Mb s 188 or 204 bytes in length Ethernet Connection The Ethernet connection plugs directly into the main board of the MEM 4750 via the rear assembly Care must be taken when removing the card with ei
4. Columns x Number of FEC Rows lt 100 destIPAddress An indication and control of the Destination IP address destIPAddressStatus An indication of the status of the Destination IP address 1 resolvedDestIPAddress Resolved Destination IP address 2 failedToResolveDestIPAddress Failed to resolve the Destination IP address 3 asiToTsolPDisabled ASI to TSoIP function is disabled 4 notApplicable Not Applicable destUdpPort An indication and control of the destination UDP Port for the transport stream NOTE UDP Port settable from 1 to 65535 transmitTPPerIP An indication and control of the number of Transport Packets transmitted per IP packet NOTE Number of TP per IP lt 7 outputProtocol An indication and control of the encapsulation method used for the TSoIP signal 1 UDP User Datagram Protocol 2 RTP Real time Transport Protocol FEC can be used with RTP 3 notApplicable Not Applicable timeToLive An indication and control of the Time To Live TTL parameter of the IP packet NOTE TTL settable from 0 to 255 txIPPacketSize An indication and control of the size of the IP packets to be generated 1 188ByteSize Set IP packet size to 188 bytes 2 204ByteSize Set IP packet size to 204 bytes 3 sizeOflncomingPackets Set IP packet size to match that of incoming ASI signal 4 notApplicable Not Applicable asiStatus An indication of the status of the incoming ASI signal 1 validASIsignal Val
5. EC in accordance to SMPTE 2022 1 can also be added to the conversion when in RTP mode An interesting application for the transmitter mode is for visual monitoring of the ASI stream s content on an Ethernet link by third party software such as by VideoLAN s VLC media player for a single content ASI stream downloadable as a free download from the internet When configured as a TSolP to ASI converter receiver mode the MEM 4750 accepts unicast and multicast IP streams over its Gigabit Ethernet port The UDP or RTP packets are de encapsulated with IP jitter removal and error correction applied as per SMPTE 2022 1 The resultant output being either a 188 or 204 byte settable ASI signal The Ethernet port has automatic MDI MDI X detection this detects whether the Ethernet interconnect cable is a straight through or cross over type and automatically switches itself to accommodate and will automatically select the link speed of the connected network 100 1000Mb s All parameters are set via a preset range of DIP switch settings or via a Simple Network Management Protocol SNMP system The MEM 4750 is designed to fit IRT s standard 1000 and 4000 series Eurocard frames and may be used alongside any other of IRT s analogue or digital Eurocards Standard features ASI to TSolP or TSolP to ASI conversion Set up as either transmitter or receiver Supports enabling of Forward Error Correction FEC IP de jittering UDP or RTP encap
6. P ASI Tx ASII P ERROR DEST IP SUB BOARD IP ASI LED Description The IP ASI LED when illuminated green indicates that the MEM 4750 has been set up in the TSolP to ASI mode ASI Tx LED Description The ASI Tx LED illuminates green when a valid ASI stream is being outputted when the MEM 4750 has been setup in the TSolP to ASI mode ERROR LED Description The ERROR LED illuminates red when errors within the IP stream occur whilst the TSolP to ASI mode is enabled or it will flash red if the TSolP to ASI conversion is disabled via SNMP red flash not applicable when in the DIP switch control mode ASI IP LED Description The ASI IP LED when illuminated green indicates that the MEM 4750 has been set up in the ASI to TSolP mode ASI I P LED Description The ASI I P LED illuminates green when a valid ASI stream is being inputted when the MEM 4750 has been setup in the ASI to TSoIP mode DEST IP LED Description The DEST IP LED illuminates red when the destination IP address has not been resolved SUB BOARD LED Description The SUB BOARD LED illuminates red when communication to the sub board on the card is not connecting When the MEM 4750 is first installed or if a change in parameters have been set this LED will illuminate as the sub board reconfigures itself Note that when installing the MEM 4750 in the frame it may be necessary to power down and up the frame if the sub board does not reconfigure itself wit
7. ase hs MEM 4750 ELECTRONICS User Manual IRT Electronics Pty Ltd www irtelectronics com Page 1 of 17 Revision 00 ASI TSolP Ethernet Network Interface Adapter Revision History MEM 4750 Revision Date By Change Description Applicable to 00 28 10 2014 AL Original Issue Firmware gt Revision 1 0 IRT Electronics Pty Ltd www irtelectronics com Page 2 of 17 Revision 00 MEM 4750 USER MANUAL Table of Contents Section Page Revision History 2 Operational Safety 4 General Description 5 Technical Specifications 6 Configuration 7 DIP Switch Settings 7 DIP Switch ASI to TSolP Transmitter Mode Quick Setup Guide 8 DIP Switch TSolP to ASI Receiver Mode Quick Setup Guide 8 Installation 9 ASI Signal Connection 9 Ethernet Connection 9 Front and rear layouts 10 Operation 11 ASI to TSolP Converter Description of Operation 11 TSolP to ASI Converter Description of Operation 11 LED Indicators 12 IP ASI LED Description 12 ASI Tx LED Description 12 ERROR LED Description 12 ASI IP LED Description 12 ASI I P LED Description 12 DEST IP LED Description 12 SUB BOARD LED Description 12 DIP Switch Control 13 Software Control 13 SNMP Software Control 14 MEM 4750 SNMP Functions 14 Maintenance amp Storage 17 Warranty amp Service 17 This instruction book applies to units fitted with firmware gt Revision 1 0 IRT Electronics Pty Ltd
8. etMask An indication and control of the card s Subnet Mask address cardGateway An indication and control of the card s Gateway address internetProtocol An indication and control of the protocol used for setting addresses 1 staticlPAddress Card given its own specific IP address as decided upon by user 2 dhcp Card automatically assigned an IP address as per DHCP server 3 notApplicable Not Applicable subBoardReboot An indication and control of the sub board s reboot function 1 set2toReboot Change this setting to 2 to reboot sub board 2 rebooting Set to this setting to reboot sub board macAddress An indication of the card s MAC address aSltolPSettingsTable A table containing the MEM 4750 ASI to TSolP Settings asi_to_TsolP An indication and control of whether the ASI to TSoIP function is enabled or not 1 disable ASI to TSoIP function is disabled 2 enable ASI to TSoIP function is enabled 3 notApplicable Not Applicable fecEncoding An indication and control of whether Forward Error Correction is enabled or not 4 disable FEC is disabled 5 enable FEC is enabled 6 notApplicable Not Applicable IRT Electronics Pty Ltd www irtelectronics com Page 14 of 17 Revision 00 MEM 4750 fecColumns An indication and control of the number of columns in FEC encoding 1 20 fecRow An indication and control of the number of rows in FEC encoding 4 20 NOTE Number of FEC
9. hin a few minutes of installing the MEM 4750 into the frame or to reboot the sub board via SNMP IRT Electronics Pty Ltd www irtelectronics com Page 12 of 17 Revision 00 MEM 4750 DIP Switch Control With the on board DIP switch SW2 1 OFF the MEM 4750 is set up for DIP switch control DIP switch settings can only be performed whilst the card is not installed in the frame Adjusting the DIP switch settings whilst the card is powered on has no effect DIP switch SW2 5 sets whether the board is configured as either an ASI to TSoIP Transmitter SW2 5 OFF or a TSoIP to ASI Receiver SW2 5 ON A choice of 8 preset Card IP addresses ranging from 192 168 1 200 to 192 168 1 207 is settable via DIP switches SW2 2 SW2 3 and SW2 4 DIP switches SW2 6 SW2 7 and SW2 8 select a choice of 8 Destination IP addresses ranging from 192 168 1 200 to 192 168 1 207 for use when the MEM 4750 is set up for ASI to TSoIP Transmitter mode The actual destination must have an IP address corresponding to 1 of these 8 Destination IP addresses Note these 3 DIP switches are not used when the MEM 4750 is set up for TSoIP to ASI Receiver mode DIP switches SW11 SW1 2 and SW1 3 select a choice of 8 UDP port numbers ranging from 8000 to 8007 In the ASI to TSoIP Transmitter mode this corresponds to UDP port number in the TSoIP to ASI Receiver mode this corresponds from UDP port number DIP switches SW1 4 SW1 5 and SW1 6 select the number
10. id ASI input signal detected 2 noCarrierDetect No input signal detected 3 unlockedSignal Invalid input signal is present 4 inputRateBelowMinimum Input ASI rate is less than the minimum allowed 5 notApplicable Not Applicable tsRate An indication of the transport stream rate of the incoming ASI signal iPtoASISettingsTable A table containing the MEM 4750 TSolP to ASI Settings tsolP_to_asi An indication and control of whether the TSoIP to ASI function is enabled or not 1 disable TSoIP to ASI function is disabled 2 enable TSoIP to ASI function is enabled 3 notApplicable Not Applicable addressingMethod An indication and control of whether the card is being directly sent to unicast or receiving its signal from a multicast address 1 unicast Card is being directly sent to based on the card s own IP address 2 multicast Card is receiving signal from a multicast IP address 3 notApplicable Not Applicable fecDecoding An indication and control of whether Forward Error Correction Decoding is enabled or not 1 disable FEC Decoding is disabled 2 enable FEC Decoding is enabled 3 notApplicable Not Applicable decodedFECColumns An indication of the number of columns in FEC decoding 0 20 decodedFECRows An indication of the number of rows in FEC encoding 0 20 jitterTolerance An indication of the IP Jitter Tolerance varies between 1 and 120ms It is the time that the MEM 4750
11. l Number of Transport Packets per IP Stream choice of 1 to 7 as per Configuration Table in Configuration section of this manual UDP RTP Set TSoIP output protocol 188 504 l Set packet size within TSolP stream DIP Switch TSolP to ASI Receiver Mode Quick Setup Guide SW2 1 OFF DIP switch control SW2 2 SW2 3 SW2 4 SW2 5 SW2 6 SW2 7 SW2 8 SW1 1 SW1 2 SW1 3 SW1 4 SW1 5 SW1 6 SW1 7 SW1 8 ON OFF ON OFF ON Card IP Address choice of 192 168 1 200 to 192 168 1 207 as per Configuration Table in Configuration section of this manual TSolP to ASI Receiver Mode Not applicable to TSolP to ASI Receiver mode From UDP port number choice of 8000 to 8007 as per Configuration Table in Configuration section of this manual Not applicable to TSoIP to ASI Receiver mode Set ASI output packet size to match that of SW2 8 setting Set ASI output packet size to match that of incoming packet size 188 Set packet size of ASI output stream if SW2 7 is OFF 204 Not applicable if SW2 8 is ON IRT Electronics Pty Ltd www irtelectronics com Page 8 of 17 Revision 00 MEM 4750 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
12. ms over its Gigabit Ethernet port The Ethernet interface checks the packets for corruption and correctness and sends them to an IP filter that selects the desired stream Other IP packets are sent to a processor sub system in order to support low level IP protocols like ARP Address Resolution Protocol and DHCP Dynamic Host Configuration Protocol From the IP filter the transport stream data enters a stream characteristic extractor This will analyze the stream for specific characteristics like PCR Program Clock Reference information With these characteristics the MEM 4750 determines the bitrate for transmitting the stream to the output An FEC reconstructor uses the FEC streams if present to reconstruct any missing packets Data is then stored in SDRAM Synchronous Dynamic Random Access Memory Jitter on the IP input may cause the late arrival of some IP packets The memory is used as a buffer to de jitter the stream The size of the de jitter buffer can be set via either the DashBoard software interface or via SNMP The IP stream is then converted to an ASI Transport Stream TS with the correct bitrate The TS contents are not affected by the MEM 4750 IRT Electronics Pty Ltd www irtelectronics com Page 11 of 17 Revision 00 MEM 4750 LED Indicators Green illuminated LEDs indicate that the MEM 4750 is in the state corresponding to the label next to the LED Red illuminated LEDs indicate an alarm condition IP ASI ASI I
13. nty period or not Contact IRT for current hourly rate Ua AR Gn 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 17 of 17 Revision 00
14. of transport stream TS packets per IP packet that are transmitted in ASI to TSoIP Transmitter mode These DIP switches have no effect in the TSoIP to ASI Receiver mode DIP switch SW1 7 selects whether the TSoIP output protocol is UDP or RTP when setup for ASI to TSoIP Transmitter mode or whether to set the outgoing ASI packet size to match the incoming TSolP stream or set to either 188 or 204 bytes as per the DIP switch SW1 8 position when setup for TSoIP to ASI Receiver mode DIP switch SW1 8 sets the packet size of the encoded TSoIP signal when in the ASI to TSoIP Transmitter mode or the ASI output packet size depending on SW1 7 position when in the TSoIP to ASI Receiver mode NOTE DIP switch quick configuration guides are available in the Configuration section of this manual Software Control With the on board DIP switch SW2 1 ON the MEM 4750 is set up via Simple Network Management Protocol SNMP Network Management System NMS control software Through software it is possible to configure the MEM 4750 with a greater flexibility than can be done via the pre set DIP switch controls SNMP software controls are described separately in the SNMP Software Control section of this manual IRT Electronics Pty Ltd www irtelectronics com Page 13 of 17 Revision 00 MEM 4750 SNMP SOFTWARE CONTROL Control via SNMP is possible via a Network Management System NMS provided the frame is fitted with a Network Management Agent card
15. ontrol returns a normal state 2 reset system reset causes sysUpTime counter to reset generalStatusTrap Enable or disable general Traps 1 enable Enable general Traps 2 disable Disable general Traps NOTE Traps will be sent if enabled when the ASI input status changes from valid to invalid when Destination IP Address Status changes when IP Status change and when Device Mode changes from ASI to IP to IP to ASI and when sub board is disconnected IRT Electronics Pty Ltd www irtelectronics com Page 16 of 17 Revision 00 MEM 4750 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 con
16. ounting 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 Maximum delay depends on input bit rate and number of TS packets per IP packet Maximum jitter tolerance depends on programmed IP to output delay and on FEC delay 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 17 Revision 00 CONFIGURATION DIP Switch settings DIP O DIP kauaka lala 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 SW2 SW1 SW2 1 OFF DIP switch control ON Software control via SNMP Card IP Address SW2 2 SW2 3 SW2 4 192 168 1 200 OFF OFF OFF 192 168 1 201 OFF OFF ON 192 168 1 202 OFF ON OFF 192 168 1 203 OFF ON ON 192 168 1 204 ON OFF OFF 192 168 1 205 ON OFF ON 192 168 1 206 ON ON OFF 192 168 1 207 ON ON ON SW2 5 OFF ASI to TSoIP Transmitter mode ON TSoIP to ASI Receiver mode Destination IP Address SW2 6 SW2 7 SW2 8 192 168 1 200 OFF OFF OFF 192 168 1 201 OFF OFF ON 192 168 1 202 OFF ON OFF 192 168 1 203 OFF ON ON 192 168 1 204 ON OFF OFF 192 168 1 205 ON OFF ON 192 168 1 206 ON
17. plicable bitrate An indication of the estimated bitrate at 188 bytes of the received Transport Stream pcrPresence An indication of whether any PCR Program Clock Reference are present within the incoming transport stream 1 pcrNotPresent no PCR present 2 pcrPresent PCR present 3 notApplicable Not Applicable rateEstimationMethod An indication and control of the method used to estimate the ASI TS rate 1 usingPCRifPresent Using Program Clock Reference PCR if present 2 disabledDelaySent Packets sent with delay 3 rateEstWithoutPCRs Estimated without the use of PCRs 4 disabledNoDelaySent Packets sent immediately 5 notApplicable Not Applicable txASIPacketSize An indication and control of the size of the ASI packets to be generated 1 asiPacketSize188 Set IP packet size to 188 bytes 2 asiPacketSize204 Set IP packet size to 204 bytes 3 sizeOflnputPackets Set ASI packet size to match that of incoming TSoIP signal 4 notApplicable Not Applicable txASITsRate An indication of the transport stream rate of the out going ASI signal firmwareVer An indication of the firmware version of the microcontroller in the format x y where x is the major revision number and y the minor softwareVer An indication of the software version of the processor in the format x y where x is the major revision number and y the minor reset Unit reset control 1 normal when queried reset c
18. rate The unit can either be set up via DIP switch control or via software control using a Simple Network Management Protocol SNMP Network Management System NMS program Note that when the MEM 4750 is plugged in or if a change to one of the system parameters takes place via the software control on average it can take about 30 to 60 seconds to initialise into its selected mode The red SUB BOARD LED will illuminate whilst reconfiguration takes place Note that if the unit seems not to be reconfiguring itself after several minutes it may be necessary to either power off and then on the frame that is housing the MEM 4750 or to reboot the sub board via SNMP ASI to TSolP Converter Description of Operation When configured as an ASI to TSolP converter the BNC connector on the rear assembly acts as an ASI input The input ASI stream is first passed through a cable equaliser and then de serialised The packet size 188 or 204 bytes is determined and then processed If the MEM 4750 has been configured to generate Forward Error Correction FEC packets a FEC generator will create row and column FEC data An IP embedder embeds the Transport Stream TS packets into IP packets whence the resultant signal is transmitted through the Ethernet interface TSoIP to ASI Converter Description of Operation When configured as a TSoIP to ASI converter the BNC connector on the rear assembly acts as an ASI output The unit accepts unicast and multicast strea
19. sulation DIP switch or SNMP software monitoring and control IRT Electronics Pty Ltd www irtelectronics com Page 5 of 17 Revision 00 TECHNICAL SPECIFICATIONS Input Output Type Transport Stream Bit Rate Packet Size Impedance Return Loss Equalisation Ethernet Type Data Rate Connector Ethernet Encapsulation IP Support IP Address Assignment Multicast Support MEM 4750 1 x ASI BNC connector 0 01 to 214 Mb s 188 204 75 Ohm gt 15 dB 270 MHz gt 250 metres at 270 Mb s for Belden 8281 or equivalent cable Standard IEEE 802 3a 100 Mb s or 1 Gb s automatic RJ 45 IEEE 802 2 SNAP and Ethernet II IPv4 DHCP DIP switch local or static IGMP v2 Transport Stream Input Output over IP TSoIP Encapsulation Input to IP Delay IP to Output Delay IP Input Jitter Tolerance UDP TS Packet Size TS Packets per IP Packet SMPTE 2022 2 Transport Protocol Forward Error Correction FEC Packet Size TS Packets per IP Packet FEC Size L FEC Size D FEC Size LxD Power Requirements Voltage Power consumption Other Temperature range Mechanical Finish Front panel Rear assembly Dimensions NOTE 1 UDP or SMPTE 2022 2 sims 1 to 120 ms programmable 1 to 120 ms computed 188 or 204 bytes 1 to 7 RTP SMPTE 2022 1 188 or 204 bytes 1 to 7 1 to 20 4 to 20 4 to 100 28 Vac CT 14 0 14 or 16 Vdc lt 5 VA 0 50 C ambient For m
20. ther enough length of the Ethernet cable to be able to pass fully through the frame or removal of the Ethernet cable first else damage to the board may result Connection is via a standard RJ 45 type of Cat 5 or Cat 6 Ethernet cable with either a data rate of 100 1000 Base T Either a straight through or cross over network cable can be used the type of cable will be automatically recognized auto MDIX operation as well as the link speed of the connected network Two status LEDs on the RJ 45 connector indicate link speed and link activity The link speed LED illuminates green when a 100 Base T signal is present and orange when a 1000 Base T Gig E signal is present The link activity LED flashes whenever an Ethernet packet is received or transmitted Link Speed LED GREEN 100 Mb s ORANGE 1000 Mb s Link Activity LED IRT Electronics Pty Ltd www irtelectronics com Page 9 of 17 Revision 00 MEM 4750 Front amp rear panel connector diagrams MEM 4750 IRT IP ASI ASI IP ASI Tx ASI l P ERROR DEST IP SUB BOARD ASI 170 eee Alarms HEM4750 PCB 805617RA_I1 IRT Electronics Pty Ltd www irtelectronics com Page 10 of 17 Revision 00 MEM 4750 OPERATION The MEM 4750 can be configured as either an ASI to TSolP or a TSolP to ASI converter where TSolP stands for Transport Stream over Internet Protocol which is essentially an Ethernet connection at either a 100 Base T or 1000 Base T data
21. trary 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 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 6 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 warra
22. waits to receive late IP packets Maximum jitter tolerance depends on programmed IP to output delay and on FEC delay IRT Electronics Pty Ltd www irtelectronics com Page 15 of 17 Revision 00 MEM 4750 udpPort An indication and control of the UDP Port of the incoming transport stream NOTE UDP Port settable from 1 to 65535 delaylPtoOutput An indication and control of the delay in milli seconds between the incoming TS and transmitting ASI signal Adjustable from 1 to 9942 This is used for reducing the output jitter of the ASI stream multicastingAddress An indication and control of the Multicast IP address if applicable NOTE Multicast IP Address can only be set when in the Multicast mode receiveTPperIP An indication of the number of Transport Packets received per IP packet ipStatus An indication of the IP Error Status of Incoming Transport Stream 1 ipEnabledNoErrors IP enabled with no errors 2 ipDisabled IP disabled 3 ipEnabledWithErrors IP enabled with errors 4 notApplicable Not Applicable incomingProtocol An indication of the encapsulation method used for the incoming TSoIP signal 1 udp User Datagram Protocol 2 rtp Real time Transport Protocol 3 notApplicable Not Applicable receivePacketSize An indication of the size of the Transport Packets received 1 ipPacketSize188 188 byte packet size received 2 ipPacketSize204 204 byte packet size received 3 notApplicable Not Ap
23. www irtelectronics com Page 3 of 17 Revision 00 MEM 4750 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 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 17 Revision 00 MEM 4750 GENERAL DESCRIPTION BLOCK DIAGRAM MEM 4750 SIGNAL PATH 100 1000 Base T ASI I P ASI O P DIP Switch The MEM 4750 is a Transport Stream over Internet Protocol TSolP converter that acts as a gateway between an ASI and an Ethernet network environment The MEM 4750 is designed to operate independently as either a transmitter ASI to TSolP or receiver TSolP to ASI or can be used as a pair with one unit at each end of an Ethernet link When configured as an ASI to TSolP converter transmitter mode the input ASI stream is encapsulated into either UDP or RTP Ethernet packets with controlled scheduling of IP packets to prevent IP jitter Forward error correction F
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