MicroConverter G.704: MTU9005 MicroConverter G.704 (48VDC): MTU9005-48 MicroConverter G.704 TECHNICAL : +44 (0) 118 9656000 SALES +44 (0) 118 9655000 FAX: +44 (0) 118 9655001 ADDRESS: 464 Basingstoke Road, Reading, Berkshire, RG2 0BG WEB: www.blackbox.co.
MicroConverter G.704 1. How To Contact your Local Black Box Italy: Australia: Black Box Italia S.P.A Black Box Catalog Australia PTY LTD Tel: 0227400280 Fax: 0227400219 Web Site: www.blackbox.it Tel: 0398797100 Fax: 0398702955 Brazil: Canada: Black Box Do Brasil. Black Box Canada Corp. Tel: (011) 5515-4000 Fax: (011) 5515-4002 Web Site: www.blackbox.com.br Tel: 0416-736-8000 Fax: 0416-736-7348 Web Site: www.blackbox.com Netherlands: Mexico: Black Box Datacom BV Black Box De Mexico S.A. de C.
MicroConverter G.704 Deutschland: Switzerland: Black Box Deutschland Datacom Black Box Services AG Tel: 0811/5541-0 Fax: 0811/5541-499 Tel: 0554517070 Fax: 0554517075 Web Site: www.black-box.ch Web Site: www.blackbox-deutschland.com France: U.S.A: Black Box Catalogue Black Box Corporation Tel: 0145606700 Fax: 0145606747 Web Site: www.blackbox.fr Tel: 724-746-5500 Fax: 724-746-0746 Web Site: www.blackbox.com Spain: Chile Black Box Comunicaciones S.A.
MicroConverter G.704 Contents Contents ...........................................................................................4 Introduction.......................................................................................6 Installation.........................................................................................7 Unpacking............................................................................ 7 Connection to a 75-ohm un-balanced G.703 / E1 network ........
MicroConverter G.704 Approvals........................................................................................19 CE Mark..............................................................................19 Safety 19 DTE Port .............................................................................19 BABT Approval....................................................................20 Specifications ..................................................................................
MicroConverter G.704 Introduction The MicroConverter G.704 from Black Box is a derivative of the highly successful MicroConverter SP-3 SRA. The MicroConverter G.704 has been engineered to reduce cost and increase functionality in this expanding sector of the market for G.703 / G.704 Data Service Units (DSUs). It is designed to enable the connection of data communication systems to carrier services, or private services, such as microwave links, that are presented as G.
MicroConverter G.704 Installation Unpacking On unpacking the managed version of the MicroConverter G.704 you should find the unit, a management control cable, and this manual. All units have an integral power supply. Mains powered units have an IEC connector and are delivered with a power lead. DC powered units are available as an option. If there are any questions please contact your local Black Box technical support. Connection to a 75-ohm un-balanced G.
MicroConverter G.704 Connection to a 120-ohm balanced G.703 / E1 network If the unit is being used on a 120-ohm balanced service then it should be connected using the RJ45 connector on the rear panel of the MicroConverter G.704. This is labelled as RJ45. Units are shipped with the interface set up for 75-ohm operation. To enable the 120-ohm balanced operation set the middle two switches (switches two and three) of the SW1 switch bank to the up/off position.
MicroConverter G.704 Switch functions and default settings Switch Bank SW1 Switch 1 Optional ground for RJ45 Receive Shield Default Up/Off Switch 2 Enable 75-ohm operations on Tx on BNC On/Down Switch 3 Enable 75-ohm operations on Rx on BNC On/Down Switch 4 Not used / no function Up/Off Note: A change to the configuration table is also required.
MicroConverter G.704 Commands Commands may be equipped with options, which need to be typed after the command name. [ . . . . ] Each option is to be delimited by one (or more) white space (not tabs). The command line is then delimited by a carriage return. Unrecognised commands, or no command will result in the error message ‘Command not found’. Commands with illegal, or unrecognised options will result in the error message ‘Syntax error’.
MicroConverter G.704 Command prompts There are three command prompts. Each reflects a different system status: ‘Changed>’ ‘Unsaved>’ ‘>’ The system configuration has not been updated since the last changes to the working configuration. Also the system configuration may not have been saved to the non-volatile storage since the last system update. The system configuration has been updated since the last changes to the working configuration, but has not been saved to the non-volatile storage.
MicroConverter G.704 2. TSDIS – Timeslot disable Syntax: Description: TSDIS [, (, . .)] Disables Timeslots on serial interface. ‘timeslot number’ >= 1 & <= 31. The command line length limits the number of timeslots that can be disabled by one command. If TS0 is disabled, G.704 framing is assumed. IF TS0 & TS16 are disabled TS16 signaling is enabled. (a or A for all) 3.
MicroConverter G.704 6. READ – read configuration from non-volatile storage Syntax: Description: READ Overwrites system & working configurations from nonvolatile storage. 7. SAVE – save configuration to non-volatile storage Syntax: Description: SAVE Saves the current system configuration in non-volatile storage. Failure to use this command will result in the loss of any new configuration if the unit is powered off. 8. CRC4 – enable / disable CRC4 Syntax: Description: CRC4 G.
MicroConverter G.704 9. MCLK – enable / disable master clock mode Syntax: Description: MCLK Clocking master control Option Description ‘OFF’ System clock recovered from network ‘ON’ System clock generated on-board Notes: Each end of a link must be set differently when using a pair of units in 2048kbits/s clear channel mode. 10.
MicroConverter G.704 11. NAME – set system name Syntax: Description: NAME Sets system name. Max length is 16 characters & can include most characters (including white space). Alpha characters are converted to uppercase. Note: The following parameters should not be changed unless specifically required for your ne twork. 12.
MicroConverter G.704 13.
MicroConverter G.704 14. TTC – enable / disable terminal timing Syntax: Description: TTC Terminal timing control. TxD can be clocked into the MC G.704 M using the TTC signals which are usually the CLK signals looped back at the far end of the cable in order to eliminate cable skew. Option Description Notes ‘OFF’ TxD sampled by CLK signals ‘ON’ TxD sampled by TTC signals Notes: TTC is inverted by the CINV command.
MicroConverter G.704 15. LBACK – enable / disable loop-back mode Syntax: Description: LBACK Loop-back test mode control. Serial TxD I/P is looped back onto RxD O/P. Network RxD I/P is looped back onto TxD O/P. If TS0 is selected for serial transmission then clear channel mode is assumed, otherwise G.704 framing is adopted. Option Description Notes ‘OFF’ Normal operation ‘ON’ Serial & network loop-back Notes: Network loop-back mode is dependent on TS0 configuration.
MicroConverter G.
MicroConverter G.704 BABT Approval Approved by BABT for connection to: Private Circuits and Interfaces in the European Economic Area compatible with G.703 (120Ω) at 2,048 kbps Unstructured. Private Circuits and Interfaces in the United Kingdom compatible with G.703 (75Ω) at 2,048 kbps. BABT Approval number : 650250. 15.
MicroConverter G.704 Specifications On Board Master Clock Operating Frequency: 2.048 MHz + 50 PPM @ 25 deg. C Network Interface Signals Specification The Network Interface conforms to ITU specification G.703 / G.704 and ETSI Open Network Provision for digital unstructured / structured leased line (D2048U / D2048S). Transmit. Output Pulse amplitude Return Loss 2.37 V into 75R + 10% 3.00 V into 120R + 10 % Min 8 dB - Max 14 dB Receive. Sensitivity Below (0dB = 2.
MicroConverter G.704 Mechanical The network signals are offered up to the network on two 75R Coax or an RJ45 socket. Pin on RJ45 1&2 3 4&5 6 Function Rx pair from network Shield reference point Transmit pair to network Shield reference point Note that the Receive Shield reference point is taken to ground via switch one of the SW1 switch bank. Moving switch one to the down/on position connects Receive Shield to ground. Environmental The MicroConverter G.
MicroConverter G.704 Appendix A- Safety Warnings Check that the input voltage marked on the rear of the unit is suitable for the intended installation. If in any doubt, consult Black Box technical support. Mains powered units:- In the event of a problem the unit must be disconnected from the mains by isolation at the mains socket. The unit must be connected only to an easily accessible mains outlet.
