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Telebyte CFA-24, Reference Manual

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Model CFA-24 Transparent Cable Farm Automation Switch Reference Manual                                                           Page 18 of 78 
 
 

4.3.4  Cabling Segment Extender Units 

 
Multiple CFA-24 units can be used to extend the number of connector segments available. This requires a minimum of 
two units to be cabled (jumpered) together such that the CO cable of one CFA-24 connects to the CPE of the other CFA-
24.

 

The number assigned to a connector segment on more than one Extender unit will depend on the sequence in which 

each unit is cabled.  

 

 

Example of CO/CPE side cabling when using CFA-24’s as segment extenders. This illustration is conceptual only and 

does not show other elements such as connections for shield ground continuity.

 

 

 

 

Summary of Contents for CFA-24

Page 1: ...Reference Manual Model CFA 24 Transparent Cable Farm Automation Switch Rev Version 7 7 1 Date of Publication 02 22 2019 Results You Can Count On...

Page 2: ...Coordinates 20 4 7 Coordinate Matrix 20 4 8 Network Monitor 20 5 0 Installation Configuration Management Process 21 5 1 Understanding Operational Modes 21 5 1 1 Standalone Mode applies to one unit net...

Page 3: ...ths and Interrupts Process 51 9 1 1 Steps in the Set Line Lengths and Interrupts Process 51 9 1 2 Instructions 52 Set Lengths 52 Set Mechanical Interruptions 53 10 0 User Management 55 11 0 Upgrade Fi...

Page 4: ...checked 74 Appendix C ID 337 Screen Examples 75 Example Using Two Vectoring Groups 4 Channels Each 75 Coordinate Matrix 8 Channels 75 Configure MP Cables 2 Vectoring Groups 75 Test Maintenance All Seg...

Page 5: ...is highly suited to lab grade testing of next gen devices where live crosstalk is required e g VDSL2 Vectoring or G fast performance testing Telebyte s superior transparency delivers excellent crosst...

Page 6: ...groups of 24 In addition segment extender units can be cabled together to add more line segments The example above shows 18 CFA 24 units installed in three racks This would provide 15 segments and 144...

Page 7: ...farms Use additional units to expand the number of segments and channels Multiple Vectoring groups per unit or across multiple units Colocated and non colocated test configurations Connect cables onc...

Page 8: ...d Dimensions Overall 17 50 H x 16 W x 6 D 10 U High Rack mountable front and or back in 19 rack Micro Interruptions Location CO or CPE side on any one channels Interrupt Time 5ms to 100ms in 1 ms incr...

Page 9: ...How to assign static IP address to each unit o Powering the CFA network 2 Installation Configuration Management o Overall set up of entire CFA system o Configure Multiple Vectoring Groups Optional o...

Page 10: ...ing Standalone CFA 24 to POE Adaptor CFA 24 Default IP Settings IP 172 16 21 241 Subnet Mask 255 255 255 0 When the CFA network consists of only one Standalone unit the CFA 24 is most likely connected...

Page 11: ...n 1 Plug the Linksys switch into a power source 2 Configure the remote PC with an IP address in the same subnet of the CFA s IP 3 Connect a remote PC to the IN port of the POE adapter 4 Connect the CF...

Page 12: ...ot available in the current Operational Mode See Understanding Operational Modes later in the document 2 The Authentication Required dialogue box is shown Depending on the browser the look of this dia...

Page 13: ...rror screen is displayed when the CFA 24 loses connectivity due to the IP address change Depending on the browser this message may vary Next Steps a Optional To regain communication enter the newly as...

Page 14: ...e is unplugged from the unit For instructions on proper shut down using remote commands see Appendix B Remote Commands 1 Enter the IP address of the unit e g 172 16 21 231 in the web browser to connec...

Page 15: ...4 The CFA 24 connection is lost when the system shuts down The appearance of the message shown below may vary depending on the browser VERY IMPORTANT Wait 30 seconds to allow the system to discharge c...

Page 16: ...front side of the unit 1 With the CFA 24 powered ON insert a paperclip into the Ethernet Reset hole and depress the switch for one second to restore the CFA 24 factory default Network Configuration 2...

Page 17: ...4 0 Definitions Refer to the diagram above when reading this section...

Page 18: ...able farm wires The CFA 24 is transparent Example ID 337 Test Setup Selection of 200 meters Five loop segments of different lengths of CW1420 are each attached to one of five segments The allowable lo...

Page 19: ...egments The allowable loop lengths of this setup are 150 300 450 600 and 750 meters Segments 1 2 3 and 4 are used to form the 600 meters Segment 5 is bypassed This configuration represents the Medium...

Page 20: ...punch down block for the CPE side input output connections of channels 9 12 is shown above 4 3 Input Output Connectors Punch down blocks provide connectivity for the input output connectors located on...

Page 21: ...d cables with custom lengths and terminations This allows the user to connect to the input output punch down blocks once then use the patch panel to connect and disconnect CO and CPE equipment One cus...

Page 22: ...o units to be cabled jumpered together such that the CO cable of one CFA 24 connects to the CPE of the other CFA 24 The number assigned to a connector segment on more than one Extender unit will depen...

Page 23: ...form a channel 4 5 Channel A series of five vertical connector segments form a channel Channels are numbered from 1 to 24 beginning on the left side of the unit unless there are multiple units If so...

Page 24: ...rdinate Matrix The Coordinate Matrix is made up of the 120 coordinates 5 connector segments x 24 channels physically located on the front of a CFA 24 unit These coordinates are defined by attributes s...

Page 25: ...twork refers to single and multi unit setups 5 1 2 Controller Mode applies to multi unit network The CFA 24 is set to Controller mode when it is used for channels 1 24 and segments 1 5 in a multi unit...

Page 26: ...ender Segment Channel Extender The begin the Installation Configuration Management process the user sets the static IP address and Operational Mode of each unit This is required to populate the Coordi...

Page 27: ...troller mode 2 Configure Coordinate Matrix of Controller or Standalone unit 3 Add Controller s IP address to Segment and or Channel Extenders to link them to the Controller 4 Assign Operational Mode o...

Page 28: ...r of units in the CFA network Enter the static IP address of the CFA 24 unit to access the CFA configuration software The Main screen is shown The Main Screen 5 4 Configure Individual Units 5 4 1 Over...

Page 29: ...n when linking Extenders to the Controller If the CFA system has only one unit this section does not apply Select Installation Configuration Management from the Main screen The INSTALLATION CONFIGURAT...

Page 30: ...of a CFA 24 unit via a remote PC connected to the CFA 24 network to launch the CFA 24 software Select SET OPERATIONAL MODE from the INSTALLATION CONFIGURATION MANAGEMENT screen The Set Operational Mod...

Page 31: ...een is shown Multi unit network o Controller Unit Click the Controller radio button the channel range is must also be 1 24 and the segment range 1 5 for the Controller OR o Extender Unit Click the Ext...

Page 32: ...sed to select the Connector Type Columns with a CHx heading are used to enter a loop length for the channel Vectoring Group numbers VG are shown at the bottom of each channel Connector Types are selec...

Page 33: ...therefore they are configured on the Controller or Standalone unit only When using Multi Pairs in the Coordinate Matrix the CONFIGURE MP CABLES option must be used to configure the Vectoring Groups L...

Page 34: ...putation o This coordinate type is required when enabling Multiple Vectoring Groups All channels in a Vectoring Group must contain at least one MP coordinate Single Pairs o Single Pair segments are au...

Page 35: ...e in a higher segment number Example of Differences in Results Using multi pair coordinates only on all channels and segments CH1 24 Segment 1 25 CH1 24 Segment 2 50 CH1 24 Segment 3 100 CH1 24 Segmen...

Page 36: ...portion of the test setup It is expected that crosstalk occurs between multi pairs When using Multi Pairs in the Coordinate Matrix use CONFIGURE MP CABLES to set up the number of Vectoring Groups o S...

Page 37: ...figure Multiple Pair MP Cables screen is shown above In this example 4 Vectoring Groups are selected Number of Vectoring Groups The values in this dropdown field are determined by the number of MP coo...

Page 38: ...EVIEW screen above 24 channels are assigned to four Vectoring Groups SAVE Click to update the CFA system or Cancel to return to Test Maintenance without saving Once the CFA system is updated all Coord...

Page 39: ...ring screen is obtained from settings established during the previous processes In the example above a system with a Controller Channel Extender and Segment Channel Extender is shown Each unit is iden...

Page 40: ...24 Transparent Cable Farm Automation Switch Reference Manual Page 36 of 78 Enter the IP address of the Controller unit Select Network Monitoring Screen The Network Monitoring screen is displayed The M...

Page 41: ...ton is clicked Online Offline dropdown allows user to change the status of the related unit to online or offline Online means the unit should be included in the CFA 24 Network Offline means that it sh...

Page 42: ...cluded Both MP s and SP s are valid Understanding Colocated and Non Colocated This relates to the lengths of the twisted pair cables between the CO DPU or DSLAM and CPE s in a vectoring group When the...

Page 43: ...to Add MP check this box to include the segment number shown to the left of check box and all related lengths in that row for the range of channels on the screen Each segment selected becomes a loop...

Page 44: ...the Coordinate Matrix is updated confirm the Check to Add MP boxes of the Test Maintenance screen are correct and press Save before setting any line length in the SET LENGTH screen For the example sc...

Page 45: ...O and CPE side equipment 4 Establishing Cable Shield Continuity 5 Establishing proper grounding 6 Connecting Segment Extenders 8 2 Rack Mounting optional To allow for dense installations each unit may...

Page 46: ...e the brackets toward the front and re install the mounting bracket screws into the new position The CFA 24 then recesses 2 into the rack Care should be taken to leave space for easy access to the bac...

Page 47: ...without the rack mounting option the rack mounting brackets may be retained on the CFA 24 or removed WARNING For personnel safety when not mounted on a rack the metal enclosure of the CFA 24 must be e...

Page 48: ...Screw SEG 4 in Punch Blocks SEG 3 out Punch Blocks Seg 3 in Punch Blocks D C Seg 2 out Punch Blocks Seg 2 in Punch Blocks SEG 1 in Punch Blocks SEG 1 out Punch Blocks B CO Punch Blocks A CO or Extende...

Page 49: ...side of the pair and the Ring wire R is connected to the right side of the pair as defined in punch down block figure that follows Each wire pair must retain its twists up to their separation at the...

Page 50: ...or larger than the wire removed The punch down block is specified for 20 removals replacements Maintain tip ring twists to the punch block Do not strip the insulation off the wire The punch down block...

Page 51: ...ne Impact Tool for storage Instructions for Top Row of Punch Down Blocks punched from above connector Tools 1 Fluke Impact Tool 2 Jonard Krone Blade 3 Wire cutter Important Orient the Jonard Krone Bla...

Page 52: ...the same Tie Bar as the stronger signal end will couple into the weaker signal end As shown on the Connection Figure the output of the CO cable and the input to SEG 1 cable are on the SEG 1 Tie Bar T...

Page 53: ...e CO cable shield is connected to Shield Continuity Connector A screw using a 10 ring lug The SEG 1 input end cable shield is also connected to the A screw which allows the SEG 1 cable shield to be co...

Page 54: ...The spacing between cables is most important to limit coupling and crosstalk Leaving the cable on a spool is convenient but may result in higher coupling than occurs in the field and therefore not rep...

Page 55: ...ower is isolated and is connected to chassis ground through the Shorting Bar When the Shorting Bar is moved from its default setting to disconnect Signal Ground from Chassis Ground the CFA 24 power wi...

Page 56: ...before attempting to set a line length Select SET LENGTHS from the Test Maintenance screen The SET LENGTHS screen is displayed Copy from thru copy value associated with selected channel to a range of...

Page 57: ...channel in the CFA 24 Network and placed on the CO or CPE or CO CPE Standalone units only An interruption sequence consisting of the interrupt time and interval between interruptions when repeated can...

Page 58: ...e one channel to which the interrupt will apply Interrupt Location select CO or CPE or CO CPE Standalone units only from the dropdown Interrupt Time o Microcuts 5ms to 750ms o Cuts 2s to 60s Time Betw...

Page 59: ...h Reference Manual Page 55 of 78 10 0 User Management Access to interface selections can be controlled using the User Management option Enter the static IP address of the Controller unit to access the...

Page 60: ...ce Manual Page 56 of 78 Access Level for User o Full Access o Installation Configuration Management o Network Monitoring Screen o Test Maintenance o Set Allowable Line Lengths Interrupts Save click Sa...

Page 61: ...lity Place the new firmware upgrade file on the remote PC Enter the static IP address of the unit to access the Main screen Select Upgrade Firmware The Main Screen Software version shown is an example...

Page 62: ...oximately10 minutes The following screen is then shown The above screen may not display 40 to 50 minutes but instead may show this process may take a few minutes A progress bar is displayed The messag...

Page 63: ...he system to reboot During this time the web browser displays a message indicating the web page is unavailable When the reboot is complete type the IP address of the CFA system into the web browser to...

Page 64: ...after the upgrade is complete 1 On each CFA 24 in the CFA network navigate to the Installation Configuration Management Coordinate Matrix screen The Coordinate Matrix is shown Load Configuration Click...

Page 65: ...A 24 Transparent Cable Farm Automation Switch Reference Manual Page 61 of 78 13 0 Technical Support Technical support is available on the web by going to http www telebytebroadband com main support_in...

Page 66: ...nual Page 62 of 78 Appendix A Configuration Example Diagrams 5 Segments 24 Channels A single Controller unit provides 5 segments and 24 channels The POE adaptor connects to an Ethernet switch AC power...

Page 67: ...annels The example above shows 1 controller and 1 channel extender unit This adds 24 more channels for a total of 5 segments across 48 channels The Ethernet POE switch connects the remote PC AC power...

Page 68: ...48 Channels The example above shows 1 Controller unit 1 channel extender 1 segment extender and 1 channel segment extender This provides a total of 10 segments across 48 channels The Ethernet POE swit...

Page 69: ...SSH Connections For systems shipped before 1 1 2016 once the CFA 24 is powered on it is very important that the user does not unplug the POE Ethernet cable from the CFA 24 Doing so can cause the opera...

Page 70: ...255 255 255 0 gateway 172 16 21 1 show system software Shows software information of current CFA unit Example Command show system software Response ACCEPTED show system software software CFA 6 9 0 Dat...

Page 71: ...the included and non included segments of specified Non Colocated vectoring groups n the vectoring group or range of vectoring groups separated by a colon Example show status of segments in Vectoring...

Page 72: ...lues line either a single channel or a range of channels separated by a colon e g 2 12 Example Command show leave 1 9 17 Response ACCEPTED show leave 1 9 17 Channel 1 co on cpe off Channel 9 co on cpe...

Page 73: ...1 12 Vectoring Group 2 Type colocated Number of channels in VG2 12 Channels in VG2 13 14 15 16 17 18 19 20 21 22 23 24 Set Command set h Displays a help menu with CFA set commands set length line leng...

Page 74: ...Response ACCEPTED set term 1 3 yes channel 1 is terminated channel 2 is terminated channel 3 is terminated set termloc line co cpe both none Terminates a channel independently on either the CO CPE or...

Page 75: ...ine is cut in milliseconds Allowable Range 5 ms to 750 ms Increments 5 ms period is the time of the complete cycle The cycle consists of the interrupt time and the closed time Periods are only in seco...

Page 76: ...ycle The cycle consists of the interrupt time and the closed time Periods are only in seconds Allowable Range 1 s to 180 s Increments 1 s count It represents the number of line on off events to execut...

Page 77: ...leave 1 co off Reestablishes the line Response ACCEPTED set leave 1 co off Example 2 set leave on lines 1 to 24 co side to on Command CFA 24 set leave 1 24 co on Example 3 set leave on lines 1 5 9 17...

Page 78: ...ame segment in the Check to Include column on the Test Maintenance screen vectoring group a single vectoring group or a range of vectoring groups separated by a colon e g vg1 vg5 segment a segment num...

Page 79: ...arent Cable Farm Automation Switch Reference Manual Page 75 of 78 Appendix C ID 337 Screen Examples Example Using Two Vectoring Groups 4 Channels Each Coordinate Matrix 8 Channels Configure MP Cables...

Page 80: ...Model CFA 24 Transparent Cable Farm Automation Switch Reference Manual Page 76 of 78 Test Maintenance All Segments Selected Set Lengths 2 Different Lengths for Each Vectoring Group...

Page 81: ...nt 2 30m Segment 1 20m The Coordinate Type of MP should be assigned in the Coordinate Matrix The above allows selection of the 20 50 100 200 and 400 meters in the standard TR 249 Telebyte recommends i...

Page 82: ...erial or workmanship during the warranty period Warranty repairs will be performed at the point of manufacture Equipment approved for return for warranty service shall be returned F O B TELEBYTE facto...

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