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East Coast Datacom Nx8- Dual Composite MUX High-Speed 16-Port TDM..., Руководство по эксплуатации

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166119

 

 

8/31/2006

 

28 

Содержание Nx8- Dual Composite MUX High-Speed 16-Port TDM...

Страница 1: ...6 Port TDM Multiplexer 31 August 2006 Manufactured by East Coast Datacom Inc FOR TECHNICAL SUPPORT CALL East Coast Datacom Inc 245 Gus Hipp Blvd STE 3 Rockledge FL 32955 USA TEL 800 240 7948 or 321 63...

Страница 2: ......

Страница 3: ...m a Local to Remote System 17 2 2 8 Time and Day Clock 17 2 2 9 Node ID Information 18 2 2 10 Log In Log Off and Change Password 18 2 3 Backup Restoral and Bandwidth Assignment Operations 18 2 3 1 Cha...

Страница 4: ...CE 60 5 2 2 Composite Port Connector DTE 61 5 2 3 Console Port Connector 62 5 3 Adapter Cables 63 5 3 1 Composite Port V 35 Adapter Cable Connection Diagram 63 5 3 2 Composite Port X 21 Adapter Cable...

Страница 5: ...its equipment is free from any defects in materials and workmanship The warranty period shall be three 3 years from the date of shipment E C D s sole obligation under its warranty is limited to the r...

Страница 6: ...166119 8 31 2006 2...

Страница 7: ...em Figure 1 shows an example of utilizing a service provider s digital carrier service In most such applications the carrier s equipment provides a clock timing source at some multiple of 64 Kbps If n...

Страница 8: ...ed by summing the bandwidth needs of each channel port that is planned to be used and adding the fixed overhead Inband control signal transport should also be considered when needed as some bandwidth...

Страница 9: ...port basis Async data rates 1200 2400 4800 7200 9600 14 4K 19 2K 28 8K 38 4K bits per second Synchronous data rates all async data rates 16K 24K 32K 40K 48K 56K 64K bits per second Programmable RTS to...

Страница 10: ...eration Counter Allocation Memory Frame Synch Detect Counter Mgt Link TxD from Proc Mgt Link RxD to Proc Loopback Functions MUX BLOCK DIAGRAM DATA FLOW Sync Figure 3 MUX Data Flow Diagram 2 1 1 Multip...

Страница 11: ...are available timeslots but do not affect those already assigned The above concepts are illustrated in the diagram of Figure 4 In this simple case the composite frame is 20 bits corresponding to an 8...

Страница 12: ...of bursts and lulls that is much different than the fixed bit rate of the port While the average rate of channel bits on the composite link will always equal that at the port it is necessary to buffe...

Страница 13: ...serves a fixed sub channel of 1200 bps for end to end embedded communication between a pair of linked systems Once both units have become synchronized this channel is used for system management functi...

Страница 14: ...composite DB 25 connector and the desired interface connector 2 1 6 3 Link State Option The composite link may be enabled or disabled by command When the link is disabled no information is transmitte...

Страница 15: ...channel re allocation all channels will potentially be disrupted and cannot be returned to service until both local and remote systems have been given equivalent commands to modify the composite link...

Страница 16: ...mode For asynchronous mode in order to properly set up the port the user must be aware of the character size and stop start and parity settings of the terminal equipment The bandwidth required on the...

Страница 17: ...rate the data paths followed for each of the three combinations of loop modes In local loopback top left the data that is received at the channel port TxD lead is sent to the RxD lead of the interface...

Страница 18: ...en they must be re allocated repeat de allocate allocate steps in order to map them into the new multiplexer frame size Because it is expected that the operator will perform much of the configuration...

Страница 19: ...rs This configuration is called the stored configuration One exception to the preceding paragraph occurs in the case of channel loopback functions Both local and remote channel loops when put into eff...

Страница 20: ...ror Reference source not found 2 2 6 Configuration Copy Commands between Local and Remote Systems A configuration stored on a system may be copied by command to a remote system across an operating lin...

Страница 21: ...system the operator must first execute the Copy Local Operating System to Remote command This saves a copy of the local operating system in a temporary area of RAM NOTE If this step fails to complete...

Страница 22: ...ion of channel bandwidth over two aggregate links and for the restoral of specific channels to an operational link under single link failure conditions The flexibility of bandwidth distribution and fa...

Страница 23: ...immediate to one hour a manual choice is available For this option the channel will not be restored until either 1 the user modifies the timer to a finite delay or 2 the composite link on which the ch...

Страница 24: ...nnel data traffic Primary LINK A e g 128Kbps REDUNDANT LINK CONFIGURATION Backup LINK B e g 96Kbps Channel Port s Channel Port s 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Timeslot Map A Timeslot Map B 1...

Страница 25: ...rs If the primary link is in service the channels would automatically switch back to their home link 2 3 4 Backup with Prioritized Channels In many cases the most efficient balance between fault toler...

Страница 26: ...ink overhead The total allocated timeslots over all 8 channels takes 282 timeslots leaving 34 unused Link B runs at 96Kbps provides 236 channel timeslots of which 168 are assigned and 68 are unused Th...

Страница 27: ...nnel is reallocated onto Link B leaving 20 timeslots Table 6 1 12 16 2 2 48 8 7 96 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 hs hf ls lf 1 8 16 32 16 2 8 16 4 3 5 24 64 4 2 3 4 5 6 7 8 9 10 11 12 13 14 15...

Страница 28: ...available So channel 1 is reallocated to Link B with just 2 timeslots remaining Fixed channels on Link A whether high or low priority are out of service until such time as Link A returns to service a...

Страница 29: ...After channel 1 is bumped channel 5 is reallocated to Link A leaving 4 unused timeslots Table 10 1 5 16 32 2 12 12 48 8 7 128 18 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 hs hf ls lf 1 8 2 32 16 8 4 3 5 7...

Страница 30: ...e timeslots 12 32 16 8 4 3 5 64 32 16 8 4 3 5 72 32 24 8 4 3 5 18 8 4 3 5 12 6 12 12 5 6 16 32 2 2 2 48 8 7 128 4 5 16 32 2 12 12 48 8 7 128 18 6 16 32 18 48 8 7 128 16 18 48 8 7 128 24 96 24 24 12 96...

Страница 31: ...166119 8 31 2006 27 channel rates and link speeds a favorable configuration balancing efficient bandwidth utilization and backup under failure is usually possible...

Страница 32: ...166119 8 31 2006 28...

Страница 33: ...O P C H 2 ACTIV E C H 3 ACTIV E C H 4 ACTIV E C H 2 LO O P C H 3 LO O P C H 4 LO O P PT 166007 MODEL 4 PORT I O Nx MUX C H 1 ACTIV E C H 1 LO O P C H 2 ACTIV E C H 3 ACTIV E C H 4 ACTIV E C H 2 LO O...

Страница 34: ...w Blow Low Clearance 5mm x 20mm 3 1 2 Chassis rack mounting The main chassis is supplied with integral mounting brackets for 19 inch rails Four mounting bolts are needed to fasten the unit in the rack...

Страница 35: ...chassis The power supply may be removed by unlocking the plug in module via the two front panel locking screws and pulling on the handle to slide the module out of the chassis Upon replacement of the...

Страница 36: ...e Nx8 DualMUX system is operational the user may remove and replace a port I O card without disruption to the normal flow of data across other active channels and the composite port After replacement...

Страница 37: ...and channel port I O can often be isolated to a single port It is important to always check the operating configurations of the Nx8 DualMUX and attached terminal and communications equipment as a fir...

Страница 38: ...166119 8 31 2006 34...

Страница 39: ...ence of transmit data clock on the corresponding Composite port interface If this indicator is Yellow then the clock is not present The upper LED is for composite port A and the lower for composite po...

Страница 40: ...annel space or bandwidth by the multiplexer When Flashing 1 sec indicates the same as ON except that SYNC is not valid and therefore inbound data cannot be demultiplexed In this case the channel recei...

Страница 41: ...atus of the Nx8 DualMUX requires the connection of a terminal via the Console Port Through the terminal interface the user is presented a series of hierarchical menus through which options are selecte...

Страница 42: ...om Jan 1 2003 Initializing Loading FPGA Image NOTE If the console connection is made or the terminal window is brought up after the Nx8 DualMUX system has been powered up the terminal window will not...

Страница 43: ...f Figure 16 as shown for the Hyperterminal application Nx8 ID xxxxx Sys 3 2 FPGA 3 2 Ser 0 00007 15 32 CpA L CpB L Channels A A A A A A A A B B B B B B B B LPwr x RPwr nn TOP LEVEL SYSTEM MENU Dual Nx...

Страница 44: ...mand option 1 2 Command option 2 3 Command option 3 1 Command option 1 2 Command option 2 1 Command option 1 2 Command option 2 3 Command option 3 4 Command option 4 Numerical order in menu list Comma...

Страница 45: ...rors a backed up on Comp A X out of sync b backed up on Comp B L loopback locally bumped Local R loopback at remote X on downed Comp link Remote N ntwk in loopback L loopback locally Pwr Supplies n lo...

Страница 46: ...enu 3 Status Configuration Functions Menu 4 TOP LEVEL SYSTEM MENU Test Maintenance Menu 5 Log Off 6 About 8 Help 7 Figure 19 The following sections outline choices 1 through 5 enumerated by the menu o...

Страница 47: ...threshold consideration should be given to the fact that the composite link bandwidth over which the error detection circuit is working is 6Kb s Therefore a link BER of 10 4 for example would result...

Страница 48: ...ff Timer 9 Composite Link Failure Holdoff Timer 8 1 No Loops 2 Transmit Loopback 3 Receive Loopback 4 Both Composite Link Loop Modes 10 1 Immediate 2 1 sec 3 5 sec 4 10 sec 5 30 sec 6 60 sec 7 5 min 1...

Страница 49: ...ends and begin exchanging data Any channel ports allocated to this link will be connected as a result Option 2 Take Composite Link Out of Service This command removes the composite link from service...

Страница 50: ...ection of the timing signal from which to clock out transmit data Option 1 TxC This selects the Transmit Clock input TxC as the signal for clocking out transmit data Option 2 TxCE This selects the Tra...

Страница 51: ...back of transmit data output to the composite receive data input The normal transmit data signal to the network is unaffected Option 3 Receive Loopback This option implements a loopback of receive dat...

Страница 52: ...3 only 7 V 35 Synchronous Channels 1 5 9 13 only Channel Port Rate 2 Channel State 1 Channel Configuration 3 Channel Select Channel Channel Selection 1 16 Clone this Channel Config from another 12 1 U...

Страница 53: ...th it s previously defined configuration on the composite link to which it was allocated Option 2 Allocate Channel on Composite Link A Option 3 Allocate Channel on Composite Link B Option 4 Suspend Ch...

Страница 54: ...higher clock rates to maintain timing margins between TxD and it s clock signal Option 1 TxC Option 2 TxCE 4 7 3 5 Channel Port RTS CTS Delay 5 Selection of this option determines the response of the...

Страница 55: ...pable will not seek backup 4 7 3 8 Channel Failover Rate 8 The selections in this menu allow for setting a new channel rate should the channel be re allocated to a surviving link as a result of a fail...

Страница 56: ...sh is not updated 14 Reset to Null Configuration does local only Flash is not updated Status Configuration Functions 6 Figure 24 4 7 4 1 Display Configuration Status 1 2 Selecting either of these two...

Страница 57: ...ote system s active configuration What is excluded are any port specific and system specific parameters for example port type DCD source and channel loopbacks Those configuration parameters that are c...

Страница 58: ...H 2 Alloc A 4800 bps RS 232 Async 10 bit None None CH 3 Alloc A 4800 bps RS 232 Async 10 bit None None CH 4 Alloc A 4800 bps RS 232 Async 10 bit None None CH 5 Alloc A 4800 bps RS 232 Async 10 bit Non...

Страница 59: ...7 Copy Local Operating System to Remote then soft boot Remote 8 Copy Local Operating System to Remote Flash then hard boot Remote Remote Box Profile Maintenance 5 Local Box Profile Maintenance 4 Figur...

Страница 60: ...memory settings are restored however any current active configuration options different from those stored in FLASH at the time of this command are lost This option should be used with care 4 7 5 4 6 L...

Страница 61: ...166119 8 31 2006 57...

Страница 62: ...166119 8 31 2006 58...

Страница 63: ...be restored in working configuration memory at any time by executing the Null Configuration Reset command Table 14 summarizes the settings stored in systems upon shipping to the customer Composite Por...

Страница 64: ...35 Mode Ports 1 5 9 13 only 1 Frame GND Frame GND Shield Frame GND Shield 2 TxD TxD SD 3 RxD RxD RD 4 RTS RTS RTS 5 CTS CTS CTS 6 DSR DSR DSR 7 Signal GND Signal GND Signal GND 8 DCD DCD RLSD 9 RxC SC...

Страница 65: ...ame GND Frame GND Shield Frame GND Shield 2 TxD TxD SD 3 RxD RxD RD 4 RTS RTS RTS 5 CTS CTS CTS 6 DSR DSR DSR 7 Signal GND Signal GND Signal GND 8 DCD DCD RLSD 9 RxC SCR 10 DCD 11 TxCE SCTE 12 TxC SCT...

Страница 66: ...21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 25 pin Sub Miniature D type Connector with Sockets female Pin No Signal 1 Frame GND 2 TxD 3 RxD 4 RTS 5 CTS 6 DSR 7 Signal GND 8 DCD 20 DTR Note...

Страница 67: ...ble or DCE device V 35 mode 25 pin Female Sub miniature D V 35 34 pin Male M Block Signal Pin Pin Signal TXD 2 Twisted Pair P SD TXD 14 S SD RXD 3 Twisted Pair R RD RXD 16 T RD TXC 15 Twisted Pair Y S...

Страница 68: ...in Female Sub miniature D X 21 15 pin Male Sub miniature D Signal Pin Pin Signal TXD 2 Twisted Pair 2 Transmit TXD 14 9 Transmit RXD 3 Twisted Pair 4 Receive RXD 16 11 Receive RXC 17 Twisted Pair 6 Ti...

Страница 69: ...miniature D RS 449 37 pin Male Sub miniature D Signal Pin Pin Signal TXD 2 Twisted Pair 4 SD TXD 14 22 SD RXD 3 Twisted Pair 6 RD RXD 16 24 RD TXC 15 Twisted Pair 5 SCT TXC 12 23 SCT RXC 17 Twisted Pa...

Страница 70: ...able or DTE device V 35 mode 25 pin Male Sub miniature D V 35 34 pin Female M Block Signal Pin Pin Signal TXD 2 Twisted Pair P SD TXD 14 S SD RXD 3 Twisted Pair R RD RXD 16 T RD TXC 15 Twisted Pair Y...

Страница 71: ...1 cable or DTE device EIA 530 mode 25 pin Male Sub miniature D X 21 15 pin Female Sub miniature D Signal Pin Pin Signal TXD 2 Twisted Pair 2 Transmit TXD 14 9 Transmit RXD 3 Twisted Pair 4 Receive RXD...

Страница 72: ...Male Sub miniature D RS 449 37 pin Female Sub miniature D Signal Pin Pin Signal TXD 2 Twisted Pair 4 SD TXD 14 22 SD RXD 3 Twisted Pair 6 RD RXD 16 24 RD TXC 15 Twisted Pair 5 SCT TXC 12 23 SCT RXC 1...

Страница 73: ...he link can perform menu operations on the remote system An illustration of this configuration is shown in Figure 27 The following diagram illustrates an RS 232 Async null modem cable suitable for a P...

Страница 74: ...state this is achieved in the looped condition by receiving it s own transmitted framing pattern While this may be implemented by means of a specially wired cable it is more readily accomplished by us...

Страница 75: ...le the flow of user data Another method is to make the configuration change addressed to the remote system first While this may also change the local system s corresponding configuration parameter to...

Страница 76: ...per channel basis SYNC Only Rates bps 16K 24K 32K 40K 48K 56K 64K Composite Port Interface Two Ports DB 25 Male Each software selectable for RS 232 RS 530 V 35 RS 422 449 and X 21 Adapter cable requir...

Страница 77: ...osite Processor Card Qty Req 1 Part Number 166007 Model Nx8 I O Description I O Board 4 Port Nx MUX QTY Req 1 to 4 per Mux chassis Part Number 166080 Model Nx SRPS Description Nx MUX Single Redundant...

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