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        TE400 Series User Manual
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1.                             39   Chapter 3    Digium  Inc  Page 10    Table Of Contents    Configuration    iii lk fuller dore i 41  Configuring Card Features                                 42  Configuring T1 E1 Lines                                   45  Testing Your Configuration                                 55   Chapter 4   Troubleshooting                                           58    Appendix A  Pin Assignments                                           64    Appendix B    Specifications   ssr                                       ee RR RE 65                       Glossary and Acronyms                                     67    Digium  Inc  Page 11    Figure 1   Figure 2   Figure 3   Figure 4   Figure 5   Figure 6   Figure 7   Figure 8   Figure 9   Figure 10   Figure 11     Digium  Inc     List of Figures    Sample Legacy Phone Application                17  Sample Channel Bank Application                18  Sample IP Phone Application                    19  TE405P C  atd         ie 25  TIE420           i iens xs SER SES baa s 26  T1 E1 Jumpers                               27  Ident                                            28  Timing Ports                                      29  Motherboard Slots                            30  Insert the Card                               32  Example dmesg Output                        56    Page 12               1              1                 1                 2     Digium  Inc     List of Tables    TE400 Series Cards          
2.                6  Card Identifiers                             36  RJ45 Telco Port                                        64  Maximum Power Consumption                   66    Page 13    Chapter 1  Overview    The Digium TE400 Series cards are a T1 E1 capable card series created  for voice and data  They support industry standard protocols  including  Robbed Bit Signaling  also known as CAS or Channel Associated  Signaling   CCS  Common Channel Signaling   E amp M  Primary Rate  ISDN          and several data modes  PPP  HDLC  Cisco HDLC  and  frame relay   The TE400 Series cards are capable of running in E1        or  J1 modes  They are also capable of DACSing channels from one span to  another  The     400 Series are ideal for connecting phones to a channel  bank  connecting to your T1 E1 switch  or connecting to a legacy PBX     This manual is for use with the TE420 TE420B PCI Express card  as well  as the 5 volt TE405P 407P and the 3 3 volt TE410P 412P Quad            PCI cards  These cards are identified collectively as the     400 Series  cards throughout this manual     Designed to be fully compatible with existing software applications and  integrate fully with the Asterisk platform  the TE400 Series cards allow  many advanced call features     Digium  Inc  Page 14    Data Modes     Cisco HDLC  HDLC   PPP  Multilink PPP  Frame Relay    Voice Modes     PRI CPE and PRI NET             N2     EuroISDN     4  55       amp           SESS  Lucent          5100     Q SIG    
3.   This number adjusts the order in  which the driver recognizes the card  For example  set the first card Ident  wheel to 0  set the second card Ident wheel to 1  and so on  The Ident  wheel is shown in Figure 7     Digium  Inc  Page 27    Chapter 2           Installation       Figure 7  Ident Wheel    Connecting Timing Cables    The timing port allows up to four TE400 Series cards to share the same  sync  timing  source from the T1 line provider  or provide a consistent  sync source across multiple cards  This is a useful feature for data and fax  modes and some voice applications to prevent corruption due to timing  slips on the second  third or fourth     400 Series cards     To utilize this feature  daisy chain the P1 connector between each TE400  Series card using the Digium 4 position timing cable  See Figure 8 on  page 29 for an example  Enable this feature in the drivers using the  timingcablez1 switch when the drivers are loaded       modprobe wct4xxp timingcable 1    Digium  Inc  Page 28    Chapter 2           Installation       Caution    Only qualified service personnel should continue with  hardware installation and configuration of the TE400 Series  card  Non qualified personnel should not attempt to perform  these functions themselves     Digium  Inc  Page 29    Chapter 2           Installation    Slot Compatibility    Check the type of card you received to be sure it is compatible with your  PCI slot  To determine which slot you have  identify it by comparing 
4.  B8ZS       coding can be AMI      HDB3  El  can also have the extra flag CRC4 at the end for CRC4 checking     Yellow     The optional yellow flag can be added at the end for transmitting a  yellow alarm when no channels are open     The following is a typical setup for a telco in the US   span   gt  1 1 0 esf b8zs    In Europe   Span     1 1 0 ccs hdb3    4  Specify the channel definitions  The format is       device       channel list      A list of valid devices are specified in the sample system conf file     The following is a typical setup for a      PRI in the US   bchan   1 23  dchan   24    5  DAHDI uses modular echo cancellers that are configured per channel   The echo cancellers are compiled and installed as part of the dahdi   linux package  You can specify the echo canceller to be used for each  channel  The default behavior is for there to be no echo canceller on    Digium  Inc  Page 47    Chapter 3  Configuration    any channel  So  it is very important that you specify one in the  system conf file if you do not have hardware echo cancellers and need  echo cancellation  The format is    echocanceller     echocanceller name gt   lt channel s  gt     A list of valid echo cancellers are specified in the sample system conf  file     The following is a typical setup for a T1 PRI in the US using software   based echo cancellation   echocanceller   mg2 1 23    Digium  Inc  Page 48    Chapter 3  Configuration    First Example  Channel Bank    The Channel Bank in this 
5.  description  of the state of the card     m Red  Card is not seeing far end  circuit is not up  or cable is bad     I can t receive DID calls even though I have it enabled in  extensions conf     Your telco might be sending calls with a method you are not expecting     1  Check the method being used by attempting the following in your line  context    X  1 NoOp My DID matches as   EXTEN      Digium  Inc  Page 58    Chapter 4  Troubleshooting    2  Then type reload in the Asterisk console and call in  You should see  the DID come in on your           line     My D Channel seems to go up and down     Check to be sure you have set your timing parameters correctly  Also   check the common causes of problems for a T1  See the Common Fixes  for all cards  page 62     I have trouble dialing out  It seems that one type of dialing works   local  long distance  international   but another does not     Check your pridialplan variable and verify that you are dialing using the  method your telco is expecting     I am having trouble receiving DID information over E amp M     Try the other types of E amp M  featd  featb  etc   to match the method your  telco is using to stream information     I am having issues with my PRI  How can I see the messages coming  across my D channel     Enter the following command    CLI gt  PRI debug span X    where X is the port from which you are connected  This command will  show you the PRI messages coming across your D channel for that span     Digium  In
6.  digium com     3  IRC channel   asterisk on  irc freenode net         Subscription Services Program    Digium is dedicated to supporting your Asterisk system by offering full  technical support through our Subscription Services Program  Through  this program  you can be at ease knowing that your business will always  have access to the Asterisk experts  Pricing on Subscription Services may  be obtained from your nearest reseller or you may call Digium Sales for  referral to your nearest reseller at  1 256 428 6000 or e mail  sales 9 digium com     Digium  Inc  Page 63                       Pin Assignments         four ports      the     400 Series card bracket are 8 pin RJ45 ports  The    pin assignments are identified in Table A 1     Table A 1  RJ45 Telco Port Connector          Pin    Description          Pin 1    Pin 8          1               N    Rx       Not used                                          Not used       Not used                 nyt tA       Not used       Digium  Inc     Page 64                          Specifications    This appendix provides specifications  required environmental  conditions  and maximum power consumption for the     400 Series  cards     Physical  All Cards    Size  5    x 3 75    x 0 63   12 7 x 9 53 x 1 6 cm   PCB size  does not include the PCI bracket  Weight  3 5 oz  100gm    Without Echo Cancellation Module    Interfaces    Local Loop Access  El        J1  PRI  RJ45   TE405P 407P 410P 412P    PCI Bus  3 3V or 5V bus slot  half  
7.  length slot minimum size  33MHz minimum bus speed  compliant  with PCI 2 2 or greater     TE420    PCI E X1  compliant with PCI E X1 1 0 or greater     Environment    Temperature  0 to 50  C  32 to 122      operation   20 to 65  C  4 to 149      storage   Humidity  10 to 90  non condensing    Digium  Inc  Page 65    Hardware and Software Requirements     800 Mhz Pentium III or better  64MB RAM    Appendix B  Specifications    Available PCI  TE405P 407P 410P 412P  or PCI E      420  Slot    Table B 2  Maximum Power Consumption                                     Model Power      420    3 3V 5 Watts  TE420  3 3V 2 5 Watts      412  3 3V 3 0 Watts  SV 0 5 Watts  TE410  3 3V 2 0 Watts  SV 0 Watts  TE407  3 3V 3 0 Watts  SV 0 5 Watts      405  3 3V 2 0 Watts  5   0 Watts          Digium  Inc     Page 66                       Glossary and Acronyms    ANSI American National Standards Institute   An organization which proposes and establishes standards for  international communications    asynchronous    Not synchronized  not timed to an outside clock source  Transmission is  controlled by start bits at the beginning and stop bits at the end of each  character  Asynchronous communications are often found in internet  access and remote office applications     attenuation    The dissipation of a transmitted signal s power as it travels over a wire     bandwidth    The capacity to carry traffic  Higher bandwidth indicates the ability to  transfer more data in a given time period     bi
8. E amp M       Wink       Feature Group B      Feature Group D           and     5      Ground Start      Loop Start    Digium  Inc     Chapter 1  Overview    Page 15    Chapter 1  Overview        Loop Start with Disconnect Detect    The     400 Series cards can be used to connect your Asterisk machine to  the PSTN world  your channel bank  or even another PBX  This is  accomplished via a   1   1 interface  The cards allow Asterisk software to  connect to your network  creating a professional telephony environment   Figure 2 shows an example of the card s primary application     Digium  Inc  Page 16    Chapter 1  Overview       Asterisk ty  Server 5                                        Phones    Figure 1  Sample Legacy Phone Application    Digium  Inc  Page 17    Chapter 1  Overview                                         lt     Asterisk    Channel Bank E                    T1                                     E    T1    D Channel Bank            Ea                                                                                                                                                                                                                                                                                                                                                                        Figure 2  Sample Channel Bank Application    Digium  Inc  Page 18    Chapter 1  Overview       Figure 3  Sample IP Phone Application    Digium  Inc  Page 19    Chapter 1  Ove
9. GE   ilum        400 Series  TE420B TE420 412P 410P 407P 405P    ERO ES  User Manual          601 00009 Rev  B 1    Digium  Inc   445 Jan Davis Drive NW  Huntsville  AL 35806       United States   1  8 m Main Number  1 256 428 6000  Tech Support  1 256 428 6161   U S  Toll Free  1 877 344 4861   Sales  1 256 428 6262   www digium com    www asterisk org  www asterisknow org       Digium  Inc  2011       rights reserved     No part of this publication may be copied  distributed  transmitted  transcribed  stored in a  retrieval system  or translated into any human or computer language without the prior written  permission of Digium  Inc     Digium  Inc  has made every effort to ensure that the instructions contained in this document  are adequate and error free  The manufacturer will  if necessary  explain issues which may  not be covered by this documentation  The manufacturer s liability for any errors in the  documents is limited to the correction of errors and the aforementioned advisory services     This document has been prepared for use by professional and properly trained personnel   and the customer assumes full responsibility when using it     Adobe and Acrobat are registered trademarks  and Acrobat Reader is a trademark of Adobe  Systems Incorporated     Asterisk  Digium  Switchvox  and AsteriskNOW are registered trademarks and Asterisk  Business Edition  AsteriskGUI  and Asterisk Appliance are trademarks of Digium  Inc     Any other trademarks mentioned in the docum
10. ading open source telephony engine and tool kit   Offering flexibility unheard of in the world of proprietary  communications  Asterisk empowers developers and integrators to create  advanced communication solutions   for free  Asterisk is released as open  source under the GNU General Public License  GPL   and it is available  for download free of charge  Asterisk is the most popular open source  software available  with the Asterisk Community being the top influencer  in VoIP     Asterisk as a Switch  PBX     Asterisk can be configured as the core of an IP or hybrid PBX  switching  calls  managing routes  enabling features  and connecting callers with the  outside world over IP  analog  POTS   and digital  T1 E1  connections     Asterisk runs on a wide variety of operating systems including Linux   Mac OS X  OpenBSD  FreeBSD  and Sun Solaris  It provides all of the  features you would expect from a PBX including many advanced features  that are often associated with high end  and high cost  proprietary PBXs   Asterisk s architecture is designed for maximum flexibility and supports  Voice over IP in many protocols  and can interoperate with almost all  standards based telephony equipment using relatively inexpensive  hardware     Asterisk as a Gateway    It can also be built out as the heart of a media gateway  bridging the  legacy PSTN to the expanding world of IP telephony  Asterisk s modular  architecture allows it to convert between a wide range of communications  protoc
11. base address f4001400  remapped to c8883400  TE4XXP version   01  0154  burst OFF  slip debug  OFF   FALC version  00000005  Board ID  00   Reg 0  0  01   400   Reg 1  0  01   000   Reg 2  Oxffffffff   Reg 3  0  00000000          4  0  0000  00          5  0  00000000                    01  0154   Reg 7  9  00001000   Reg 8  0  00000000   Reg 9                                10  0  00000000                 Launching cardi 0   TE4XXP  Setting up global serial parameters   Found a Wildcard  Wildcard TE405P  2nd Gen    herbie               Figure 11  Example dmesg Output    Note  Output as shown above may vary depending on the     400  Series card you use     2  Run dahdi tool from the command line and see if the span turns  green for each span you have connected        dahdi tool    Digium  Inc  Page 56    Chapter 3  Configuration    3  Execute the following Asterisk command to see if the span came up  successfully       asterisk    asterisk  vvvr    Digium  Inc  Page 57    Chapter 4  Troubleshooting    This chapter provides frequently asked questions as identified from  Digium Technical Support and possible resolutions  Multiple resources  are available to obtain more information about Asterisk and Digium  products  These resources are listed on page 63     What do the Status LED colors indicate   m Green   Card is in sync with the far end     m Yellow   Card is synchronizing or is receiving a red alarm from the far  end  Use a software tool such as dahdi tool to get a textual
12. c  Page 41    Chapter 3  Configuration    Configuring Card Features    You will need to modify the chan dahdi conf file which is located in the   etc asterisk directory in order to configure the essential features of your  card  This file is the configuration layer between DAHDI and Asterisk     Switchtype   national  National ISDN 2  default   dms100  Nortel DMS100  4ess  AT amp T 4  55  5ess  Lucent 5ESS  euroisdn  EuroISDN  nil  Old National ISDN 1  qsig  Q SIG  Echocancel     Echo Cancellation is enabled in chan  dahdi conf by preceding the  channel variable with a variable called echocancel and its length in taps     of milliseconds multiplied by 8   for example     echocancel   yes  channel     1 23    By default  and when setting to  yes   echo cancellation is enabled and set  to 16 ms  128 taps   Echo cancellation is explicitly disabled by setting     echocancel   no  Digium does not recommend that users set echo cancellation to  no      Users of open source Asterisk based echo cancelers also have the  following options   echocancel   128  this sets 128 taps or 16ms     Digium  Inc  Page 42    Chapter 3  Configuration    Or  echocancel   256  this sets 256 taps or 32ms   Users of Digium s HPEC software have the following additional options   echocancel   512  this sets 512 taps or 64ms   Or  echocancel   1024  this sets 1024 taps or 128ms   Please note that HPEC consumes extremely high amounts of CPU MIPS  that increase as the number of taps are increased  Audio quali
13. c  Page 59    Chapter 4  Troubleshooting    I am still having problems and the telco tells me it is my equipment     The first thing to do in this situation is to test your equipment     1  Plug in a loopback cable   A loopback cable is a cable that has pin 1  going to pin 4 and pin 2 going to pin 5   Plug the cable into the span  and wait for its LED to turn green     2  Stop Asterisk and edit system conf by removing the lines defined for  your card and replacing them with the following   span   gt  1 0 0 esf b8zs  Clear   1 24    Or if you have an El span   Span     1 0 0 ccs hdb3  clear   1 31    Digium  Inc  Page 60    Chapter 4  Troubleshooting    3  Navigate to the tools  directory in your DAHDI complete source  directory and type       make tests    Followed by        patlooptest  dev dahdi 1 60    The first argument in the patlooptest command is the device for the  channel number you want to test  You should always test the first  channel of a span  The second argument is the duration in seconds to  run the test     This runs a pattern looptest for 60 seconds  If you receive any failures   it is possible you have a bad card and will need to call Digium  Technical Support   1 256 428 6161     How can I enable more features     To view all of the options available to add to your dial plan  type the  following commands from within Asterisk     CLI gt  core show applications    CLI gt  core show functions    Digium also offers services to help configure and add features y
14. cing H 323     T1    A dedicated digital carrier facility which transmits up to 24 voice  channels  DSOs  and transmits data at 1 544 Mbps  Commonly used to  carry traffic to and from private business networks and ISPs     Digium  Inc  Page 74    Appendix C Glossary and Acronyms    T3   A dedicated digital carrier facility which consists of 28 T1 lines and  transmits data at 44 736 Mbps  Equivalent to 672 voice channels  0505    TDM time division multiplexer   A device that supports simultaneous transmission of multiple data streams  into a single high speed data stream  TDM separates signals by  interleaving bits one after the other    telco   A generic name which refers to the telephone companies throughout the  world  including RBOCs  LECs  and PTTs    tip and ring   The standard termination on the two conductors of a telephone circuit   named after the physical appearance of the contact areas on the jack plug   twisted pair    Two copper wires commonly used for telephony and data  communications  The wires are wrapped loosely around each other to  minimize radio frequency interference or interference from other pairs in  the same bundle     V volts    VoIP Voice over IP    Technology used for transmitting voice traffic over a data network using  the Internet Protocol     Digium  Inc  Page 75    
15. connectors and pin assignments   ecifications etails card specifications   B Specificati Detail d specificati          Glossary and  Acronyms       Defines terms related to this product        Digium  Inc     Page 7    Symbol Definitions    Caution statements indicate a condition where damage to the unit or  its configuration could occur if operational procedures are not  followed  To reduce the risk of damage or injury  follow all steps or  procedures as instructed     The ESD symbol indicates electrostatic sensitive devices  Observe  precautions for handling devices  Wear a properly grounded  electrostatic discharge  ESD  wrist strap while handling the device     The Electrical Hazard Symbol indicates a possibility of electrical  shock when operating this unit in certain situations  To reduce the  risk of damage or injury  follow all steps or procedures as  instructed      gt   gt     Digium  Inc  Page 8    Important Safety Instructions    User Cautions    Servicing    Do not attempt to service this card unless specifically instructed to do  so  Do not attempt to remove the card from your equipment while  power is present  Refer servicing to qualified service personnel     Water and Moisture   Do not spill liquids on this unit  Do not operate this equipment in a  wet environment     Heat    Do not operate or store this product near heat sources such as  radiators  air ducts  areas subject to direct  intense sunlight  or other  products that produce heat     Static Electrici
16. ed to the telecommunications  network and which resides within the home or office of the customer  This  includes telephones  modems  terminals  routers  and television set top  boxes     DAHDI  Digium Asterisk Hardware Device Interface    A telephony project dedicated to implementing a reasonable and  affordable computer telephony platform into the world marketplace  Also   the collective name for the Digium provided drivers for Digium  telephony interface products     0 0 Digital Signal  Level 0   A voice grade channel of 64 Kbps  The worldwide standard speed for  digitizing voice conversation using PCM  Pulse Code Modulation    DS1 Digital Signal  Level 1    1 544 Mbps in North America  T1  and Japan  J1   up to 24 voice  channels  0505   2 048 Mbps in Europe  E1    up to 32 voice channels   0505   DS1 T1 E1 lines are part of the PSTN     Digium  Inc  Page 69    Appendix C Glossary and Acronyms    0 3 Digital Signal  Level 3    T3 in North America and Japan  E3 in Europe  Up to 672 voice channels   0505   DS3 T3 E3 lines are not part of the PSTN     DTMF Dual Tone Multi Frequency    Push button or touch tone dialing     E1    The European equivalent of North American       transmits data at 2 048  Mbps  up to 32 voice channels  DSOs              The European equivalent of North American T3  transmits data at 34 368  Mbps  up to 512 voice channels  0505   Equivalent to 16 E1 lines     EMI Electromagnetic Interference    Unwanted electrical noise present on a power line    f
17. ent are the property of their respective owners     Digium  Inc  Page 2    Safety Certification and Agency Approvals  Safety     UL 60950 1 2003  First Edition   CSA C22 2 No  60950 1 03 1st Ed  April 1  2003  IEC 60950 1 2001 First Edition   EN 60950   AS NZS 60950    Note  Finland  Norway and Sweden require that equipment using this  product must be located in a Restricted Access Location  RAL      Telecom     FCC Part 68  ANSIATA 968 A  Including Amendment A1 and A2  Industry Canada CS 03   AS ACIF  016  2001   AS ACIF S038  2001   ICASA  TE405P TE407P TE410P TE412P    RosTest   TBR4 November 1995 as amended by TBR4 A1 December 1997  TBR12 December 1993   TBR13 January 1996    Emissions   Note  Shielded T1 E1 J1 cables are required for compliance purposes     47 CFR Part 15  Subpart B   47 CFR Part 15  Subpart B  Class B  EN 55022 1998 Class B   EN 55022 1998 Class B Radiated and  Conducted   EN 55024 1998          61000    Digium  Inc  Page 3    Immunity         55024 ITE  EN61000    Federal Communications Commission Part 68    This equipment complies with Part 68 of the FCC rules and the  requirements adopted by the ACTA  On the back of the TE400 Series  printed circuit board is a label that contains  among other information  a  product identifier in the format US AAAEQ  TXXXxX  If requested  this  number must be provided to the telephone company     A plug and jack used to connect this equipment to the premises wiring  and telephone network must comply with the applicab
18. example has 24 FXS ports  In this  configuration  the system conf is set for the card to provide timing to the  channel bank and fxoks is set for 24 stations     Set chan dahdi conf to mirror the configuration with signalling    fxo ks and define it for channels 1 24      etc dahdi system conf   loadzone   us  defaultzone   us   Span   1 0 0 esf b8zs  fxoks   1 24  echocanceller   mg2 1 24     etc asterisk chan dahdi conf   group   1   echocancel   yes   context   channelbank  signalling          ks   channel   1 24    Digium  Inc  Page 49    Chapter 3  Configuration    Second Example  E amp M Line    In the E amp M Line configuration  the system conf is set for the card to  take timing from the telco on E amp M with wink while chan dahdi conf  mirrors the configuration  Feat D is a type of E amp M with wink that  accepts DID  but there are many other E amp M options  E amp M_W  E amp M   Feat B  etc      etc dahdi system conf   loadzone   us  defaultzone   us   Span   1 1 0 esf b8zs  e amp m   1 24   echocanceller   mg2 1 24     etc asterisk chan dahdi conf     group   1  echocancel   yes  context   incoming    signalling   feat d  channel   1 24    Digium  Inc  Page 50    Chapter 3  Configuration    Third Example  PRI    By configuring the card for a T1 PRI line in system conf  you acquire 23  bearer  B  channels for voice on the first 23 channels  and 1 delta  D   channel for signalling information on the 24th channel  In the   chan dahdi conf file  define pri cpe as the s
19. for the X X and X X X in the  command lines below     tar  zxvf libpri X X current tar gz  cd libpri X X X   make        db      make install    4  Download the latest DAHDI drivers with tools  DAHDI is available  for download from   http   downloads digium com pub telephony dahdi linux complete         wget http   downloads digium com pub telephony   dahdi linux complete dahdi linux complete   current tar gz    Digium  Inc  Page 37    Chapter 2  Card Installation    5  Expand the downloaded file  compile its contents  and install the  drivers and tools  Substitute the version of DAHDI for the X X X in  the command lines below       tar  zxvf dahdi linux complete current tar gz    cd dahdi linux complete X X X X X X     make     make install     make config    Note  Executing    make config    will install an init script and symlinks  which will allow you to start and stop DAHDI as a service     Digium  Inc  Page 38    Chapter 2  Card Installation    Installing Asterisk    If you wish to use Asterisk with your new hardware  you can follow the  instructions below     1  Download the latest release version of Asterisk  either 1 4 22  or  later   1 6 0 1  or later   or 1 8 0  or later   Substitute the version of  Asterisk for the X X in the command below  Asterisk is available for  download from   http   downloads digium com pub telephony asterisk         wget http   downloads digium com pub telephony   asterisk asterisk X X current tar gz    2  Expand the downloaded file  compi
20. ignalling type to act as the  client side  Define the switch type you are connecting to as national  You  will then have 23 voice channels for Asterisk     PRI         etc dahdi system conf   loadzone   us  defaultzone   us  Span   1 1 0 esf b8zs  bchan   1 23  dchan   24  echocanceller   mg2 1 23     etc asterisk chan dahdi conf   group   1   echocancel   yes   signalling   pri         switchtype   national   context   incoming   channel   1 23    Digium  Inc  Page 51    Chapter 3  Configuration    PRI E1    etc dahdi system conf   loadzone   es  defaultzone         Span   1 1 0 ccs hdb  bchan   1 15 17 31  dchan   16  echocanceller   mg2 1 15 17 31     etc asterisk chan dahdi conf   group   1   echocancel   yes   Signalling   pri cpe  switchtype   euroisdn   context   incoming   channel   1 15 17 31    Digium  Inc  Page 52    Chapter 3  Configuration    Fourth Example  Data Mode    Data mode is a little different than the other options  The system conf is  configured as follows     loadzone   us  defaultzone   us   Span   1 0 0 esf b8zs  nethdlc   1 24    Instructions for Cisco HDLC     1  Compile the Linux kernel with Cisco HDLC support  The Linux  kernel menuconfig menu may look similar to the following     Device Drivers     gt       Network device support     gt       Wan interfaces support     gt     M   Generic HDLC support    M   Cisco HDLC support    Note  Digium recommends using Linux kernel version 2 6 8 or later   The HDLC implementation in Linux kernel versions 
21. it to  those shown in Figure 9 on page 30     Slot Number   0  AGP Pro Slot  1  64 bit 5 0 volt PCI Slot  2  64 bit 3 3 volt PCI Slot  3  32 bit 5 0 volt PCI Slot  4  PCI Express X1 Slot       Figure 9  Motherboard Slots    Digium  Inc  Page 30    Chapter 2           Installation    The TE405P 407P card is    32 bit 33MHz card keyed for 5 0 volt  operation and works in any PCI 2 2  or higher  compliant slot which  supports 5 0 volts  This means that in the motherboard shown in Figure 9   the TE405P 407P card will fit into Slots 1 and 3  The TE405P 407P will  not fit into Slot 0         slot  or Slot 2     The TE410P 412P card is    32 bit 33MHz card keyed for 3 3 volt  operation and works in any PCI 2 2  or higher  compliant slot which  supports 3 3 volts  This means that in the motherboard shown in Figure 9   the TE410P 412P card will only fit into Slot 2  The TE410P 412P will         fit into Slots 1 or 3     The     420     420   card is a PCI Express card  Slot 4  illustrated above   is a 1 lane        PCI Express compliant slot  The     420     420   will  work in any PCI Express compliant slot  including lane lengths X4  X8   and X16  This means that in the motherboard shown in Figure 9  the      420     420   will only fit into Slot 4  The     420     420   can not be  used in Slots 1 through 3     Digium  Inc  Page 31    Chapter 2  Card Installation    Hardware Installation    1     Now that you are acquainted with the cards  power down your  computer and unplug it fr
22. le FCC Part 68  rules and requirements adopted by the ACTA     If the TE400 Series causes harm to the telephone network  the telephone  company may notify you in advance that temporary discontinuance of  service may be required  But if advance notice is not practical  the  telephone company will notify you as soon as possible  Also  you will be  advised of your right to file a complaint with the FCC if you believe it is  necessary     The telephone company may make changes in its facilities  equipment   operations or procedures that could affect the operation of the equipment   If this happens  the telephone company will provide advance notice in  order for you to make necessary modifications to maintain uninterrupted  service     If you experience problems with the     400 Series  contact Digium  Inc     1 256 428 6161  for repair and or warranty information  If the  equipment is causing harm to the telephone network  the telephone    Digium  Inc           4    company may request that you disconnect the equipment until the  problem is resolved     FCC Part 15    This device complies with part 15 of FCC rules  Operation is subject to  the following two conditions   1  This device may not cause harmful  interference  and  2  This device must accept any interference received   including interference that may cause undesired operation     Industry Canada Compliance Information    Notice  The Industry Canada label applied to the product  identified by  the Industry Canada logo o
23. le its contents  and install the  application  Substitute the version of Asterisk for the the X X and  X X X in the command lines below     tar  zxvf asterisk X X current tar gz  cd asterisk X X X      configure   make menuselect   make    dk   Gb db        make install    Digium  Inc  Page 39    Chapter 2  Card Installation    3  If this is the first Asterisk installation on this system  you should install  the sample configuration files  To do this  run       make samples    Note  Running this command will overwrite  after making a backup  copy  any older Asterisk configuration files that you have in the  etc   asterisk directory     If your installation has failed  it may be because you are missing one  or more of the build dependencies  the kernel headers  or the  development tools  Please contact your reseller where the card was  purchased  or call Digium Technical Support   1 256 428 6161  for  assistance     Complete instructions for installing Asterisk are available at  www asterisk org     Digium  Inc  Page 40    Chapter 3  Configuration               400 Series cards have a variety of configuration options  This  chapter provides configurations for PRI  channel bank  E amp M wink  and  finally  data mode  These sample configurations are provided to assist you  in familiarizing yourself with the flexibility of editing the configuration  files to meet your specific needs  The list of possible configurations is too  expansive to cover in this user manual     Digium  In
24. me length   30ms  and  15 2 kbps  frame length   20 ms     ILEC incumbent local exchange carrier   The         that were the original carriers in the market prior to the entry of  competition and therefore have the dominant position in the market   interface    A point of contact between two systems  networks  or devices   ISO International Standards Organization  LED light emitting diode    Linux    A robust  feature packed open source operating system based on Unix  that remains freely available on the internet  It boasts dependability and  offers a wide range of compatibility with hardware and software  Asterisk  is supported exclusively on Linux     loopback    A state in which the transmit signal is reversed back as the receive signal   typically by a far end network element     Digium  Inc  Page 72    Appendix    Glossary and Acronyms    MGCP Media Gateway Control Protocol    multiplexing   Transmitting multiple signals over a single line or channel  FDM   frequency division multiplexing  and TDM  time division multiplexing   are the two most common methods  FDM separates signals by dividing  the data onto different carrier frequencies  and TDM separates signals by  interleaving bits one after the other    MUX multiplexer   A device which transmits multiple signals over a single communications  line or channel  See multiplexing    PBX private branch exchange   A smaller version of a phone company s large central switching office   Example  Asterisk    PCI peripheral com
25. ols and media codecs     Digium  Inc  Page 21    Chapter 1  Overview    Asterisk as a Feature Media Server    Need an IVR  Asterisk s got you covered  How about a conference  bridge  Yep  It s in there  What about an automated attendant  Asterisk  does that too  How about a replacement for your aging legacy voicemail  system  Can do  Unified messaging  No problem  Need a telephony  interface for your web site  Ok     Asterisk in the Call Center    Asterisk has been adopted by call centers around the world based on its  flexibility  Call center and contact center developers have built complete  ACD systems based on Asterisk  Asterisk has also added new life to  existing call center solutions by adding remote IP agent capabilities   advanced skills based routing  predictive and bulk dialing  and more     Asterisk in the Network    Internet Telephony Service Providers  ITSPs   competitive local  exchange carriers  CLECS  and even first tier incumbents have  discovered the power of open source communications with Asterisk   Feature servers  hosted services clusters  voicemail systems  pre paid  calling solutions  all based on Asterisk have helped reduce costs and  enabled flexibility     Asterisk Everywhere    Asterisk has become the basis for thousands of communications  solutions  If you need to communicate  Asterisk is your answer  For more  information on Asterisk visit http   www asterisk org or http     www digium com           Digium  Inc  Page 22    Chapter 2           In
26. om its power source       Attach a static strap to your wrist and open the case     Check the jumper setting to ensure it matches your equipment    configuration  Setting the jumper with the jumper strap on enables the  ports for E1  Setting the jumper with the jumper strap off enables the  ports for T1       Remove the bracket place holder and insert the card into a PCI or PCI    Express slot  See Figure 10 for an example of card installation              Figure 10  Insert the Card    5  Replace the cover to your computer     6  Plug all      or El equipment cables into the RJ45 ports as needed     Note  It is recommended that you use shielded cables     Digium  Inc  Page 32    Chapter 2  Card Installation    Caution    This unit must be connected to the Telecommunications  Network in your country using an approved line cord  e g  for  Australia use only line cords complying with ACA Technical  Standard TS008      Caution     This unit must be connected only to the appropriate    Telecommunications Network port  as approved for use in your  specific country      Software Installation    Digium hardware requires drivers and libraries that are not integrated  with the Linux kernel  Digium hardware is only supported under Linux   Digium recommends CentOS  Debian  Red Hat  and Ubuntu distributions  of Linux  However  many other distributions are supported by Digium  Technical Support     Digium s software  including drivers and application software  may be  obtained from Digium 
27. ou might  need  Contact Digium Technical Support   1 256 428 6161  for more  information     Digium  Inc  Page 61    Chapter 4  Troubleshooting    Common Fixes for all cards    1  Check to see if the X Window System  e g  X Org Server  is running  by entering the following       ps aux   grep X    If the X Window System is running  stop the application since it may  cause a conflict with Asterisk     2  Check to see if your PATA IDE hard drives are running with DMA  levels set  Advance user can perform an hdparm on your hard drive  interface     Use hdparm with caution as the man page states that hard drive    corruption can occur when using incorrect settings  Please  review the man page for hdparm and make sure you understand    the risks before using this tool     Check the current mode using this command   hdparm  vi  dev  IDE Device     Use this command to set the drives into UDMA2 mode   hdparm  d 1  X udma2  c 3  dev  IDE Device     If you are still having problems  contact your reseller from which the  card was purchased  or Digium Technical Support   1 256 428 6161      Digium  Inc  Page 62    Chapter 4  Troubleshooting    Where can I find answers to additional questions    There are several places to inquire for more information about Asterisk   Digium products    1  Digium Technical Support   1 256 428 6161   or Toll Free in the U S    1 877 344 4861   is available 7am 8pm Central Time  GMT  6    Monday   Friday    2  Asterisk users mailing list  asterisk org lists
28. ponent interconnect    A standard bus used in most computers to connect peripheral devices     POP point of presence   The physical connection point between a network and a telephone  network  A POP is usually a network node serving as the equivalent of a  CO to a network service provider or an interexchange carrier    POTS plain old telephone service    Standard phone service over the public switched telephone network   PSTN   This service provides analog bandwidth of less than 4 kHz     Digium  Inc  Page 73    Appendix C Glossary and Acronyms    PPP point to point protocol  Type of communications link that connects a single device to another  single device  such as a remote terminal to a host computer     PSTN public switched telephone network    The public switched telephone network  PSTN  is the network of the  world s public circuit switched telephone networks  Originally a network  of fixed line analog telephone systems  the PSTN is now almost entirely  digital  and now includes mobile as well as fixed telephones     QoS quality of service   A measure of telephone service  as specified by the Public Service  Commission    RJ11    A six pin jack typically used for connecting telephones  modems  and fax  machines in residential and business settings to PBX or the local  telephone CO     SIP Session Initiation Protocol    An IETF standard for setting up sessions between one or more clients  It  is currently the leading signaling protocol for Voice over IP  gradually  repla
29. prior to 2 6 8  may not be reliable or function at all     2  Install the newly compiled Linux kernel     Digium  Inc  Page 53    Chapter 3  Configuration      Reboot into the new Linux kernel       Uncomment the following line in linux drivers dahdi   dahdi config h of the DAHDI complete source package      define CONFIG DAHDI NET      Rebuild DAHDI in order to compile the sethdlc utility  Then execute  the following commands from the DAHDI complete source directory       make sethdlc    make install      Load and configure the driver       modprobe wct4xxp    dahdi cfg      Use sethdlc to bring up the interface       sethdlc   41  0 cisco      Assign the interface an address       ifconfig hdlc0 192 168 0 1 netmask 255 255 255 0    Digium  Inc  Page 54    Chapter 3  Configuration    9  The interface may be addressed as any other networking interface   1      eth0  in Linux     Testing Your Configuration    1  Load DAHDI drivers into the kernel using the modprobe utility  The  appropriate driver for the TE400 Series cards is wct4xxp  Users in all  countries except Australia should use the following modprobe  command       modprobe wct4xxp      dahdi cfg  vv    dmesg    Digium  Inc  Page 55    Chapter 3  Configuration    drivers usb input hid core cz v2 0 USB HID core driver  usb 1 2  USB disconnect  address 2  usb 1 2 1  USB disconnect  address 3    Stopped TE4XXP  Turned off DMA   ACPI  PCI interrupt 0000 00 0   0       gt  GSI 10  level  low    gt  IRQ 10  Found TE4XXP at 
30. r the  IC   in front of the certification   registration number  indicates that the Industry Canada technical  specifications were met     Digium  Inc  Page 5    Introduction to TE400 Series Documentation    This manual is a user guide for Digium s     400 Series cards  The Digium      400 Series cards are a   1   1 capable card series created for voice and  data  The cards in this series are as follows     Table 1  TE400 Series Cards                      Model Features Type      420   3 3 volt  4 Ports  Echo Cancellation   PCI Express  TE420 3 3 volt  4 Ports PCI Express  TEA12P 3 3 volt  4 Ports  Echo Cancellation   PCI 2 2               3 3 volt  4 Ports PCI2 2  TE407P 5 0 volt  4 Ports  Echo Cancellation   PCI 2 2      405   5 0 volt  4 Ports PCI2 2             Digium  Inc     Page 6    Document Organization    The     400 Series user s guide is organized in the following manner                             Chapter     E         Title Description  Appendix  1 Overview Identifies the features of the card you received  This  chapter covers applications and uses of the TE400  Series cards in the real world   2 Card Installation Provides instructions for installing the card in your  PC  acquiring correct drivers  and checking device  compatibility   3 Configuration Provides examples for configuring dial plan options   4 Troubleshooting Explains resolutions to common problems and  frequently asked questions pertaining to card  installation and usage   Pin Assignments Lists the 
31. rview    Echo Cancellation    Users connecting their TE400 Series cards to the PSTN or other devices  are likely to be placing calls that will result  at some point  in an  unbalanced 4 wire 2 wire hybrid  The result of this hybrid is the  reflection of a near end echo to the calling party  Elimination of this echo  is the responsibility of echo cancellation     The     400 Series cards  unless otherwise equipped  utilize Asterisk to  perform software based echo cancellation  Asterisk maintains a number  of open source echo cancelers  These open source echo cancelers provide  a moderate level of echo cancellation  but are not capable of dealing with  higher levels of  or more advanced  echoes     Digium recommends that those users concerned about echo cancellation  purchase the             128 hardware echo cancellation module  The  VPMOCT128 may be combined with either the TE405P  as TE407P    TE410P  as TE412P   or TE420  as     420    cards     The VPMOCT128 is designed to handle up to 128ms of echo cancellation  across all channels and provides a G 168 compliant echo cancellation  solution     If equipped and not explicitly disabled in chan dahdi conf  the              128 will automatically operate and cancel all network echo  within its tail range  1024 taps   Users may also purchase Digium s  commercial HPEC software   http   www digium com en products software hpec php       Digium  Inc  Page 20    Chapter 1  Overview    What is Asterisk     Asterisk is the world s le
32. s card  TE405P   407P   410P   412P   420   420B     Digium  Inc  Page 24    Chapter 2           Installation    Identifying Communication Ports    The     400 Series cards consists of four RJ45 ports and four status LEDs   The ports are used for connecting       El  or J1 cables  Refer to Figure 4  on page 25 or Figure 5 on page 26 to locate the ports and LEDs     Timing  Port  Status  LEDs  Jumpers  Ident  Wheel             pdi 2 2  Connector    Figure 4  TE405P Card    Digium  Inc  Page 25    Chapter 2           Installation    Timing  Port    Status  LEDs  Jumpers  Ident  Wheel            PCI Express  Connector    Figure 5  TE420 Card    Digium  Inc  Page 26    Chapter 2           Installation    T1 E1 Selection    The card includes    row of jumpers to select either      or      mode for the  spans  An example of the jumpers from the     405 card is shown       Figure 6  The           mode  in most cases  is set at the distributor before  shipment  You may want to check the setting to be certain they are set for  your specific use  With the jumper off  the span is ready for      mode          with the jumper on  the span is ready for   1 mode        Figure 6  T1 E1 Jumpers    Identifying Multiple Cards    If multiple TE400 Series cards are installed in the same machine  then the  Ident wheel can be used to control the order the cards are recognized  The  click wheel switch with the word            printed above it can be set to a  different number for each installed card
33. s download server at   http   downloads digium com       For an introduction to Asterisk  Digium s telephony software  including  additional information on its configuration  setup  and features  please  refer to    http   www asterisk org       For the latest information on setting up and configuring DAHDI drivers  for your Digium hardware product  please refer to the latest release of this  manual which is available from the product specific documentation  section at    http   www digium com       Digium  Inc  Page 33    Chapter 2           Installation    To install your TE400 Series card  you will need     Linux 2 6 kernel headers   Development libraries and headers for ncurses  Development libraries and headers for zlib and openssl  Development libraries and headers for newt   GCC and standard software build tools    It is recommended that you use the most recent version of the Asterisk   DAHDI  and libpri software for the best results  If you have previously  installed any of these  Digium recommends that you upgrade to the latest     current    version of each     Note  If you are using the 1 4 x series of Asterisk  you will need  Asterisk 1 4 22 or newer     Digium  Inc  Page 34    Chapter 2           Installation  1  After the machine has booted to Linux  log in and execute the  following command to list the devices detected by the PCI bus       lspci  n    Confirm that the output from Ispci lists a device with Digium s PCI  vendor ID which is  d161   The screen outp
34. stallation    This chapter provides the following information     Unpacking the Card on page 24   Shipment Inspection on page 24   Identifying Communication Ports on page 25  T1 E1 Selection on page 27   Identifying Multiple Cards on page 27  Connecting Timing Cables on page 28   Slot Compatibility on page 30   Hardware Installation on page 32   Software Installation on page 33    Note  The TE400 Series card installation instructions are written so  that they will apply to any card in the series  Examples and card  specific information are included as needed     Digium  Inc  Page 23    Chapter 2  Card Installation    Unpacking the Card    When you unpack your card  carefully inspect it for any damage that may  have occurred in shipment  If damage is suspected  file a claim with the  carrier and contact your reseller from which the card was purchased  or  contact Digium Technical Support   1 256 428 6161   Keep the original  shipping container to use for future shipment or proof of damage during  shipment     Note  Only qualified service personnel should install the card  Users  should not attempt to perform this function themselves  The installer  must ensure that the equipment is permanently connected equipment   pluggable type B or connected to a socket outlet that has been checked  to ensure that it is reliably earthed in accordance with the National  Electrical Code     Shipment Inspection    The following items are included in shipment of the TE400 Series     TE400 Serie
35. t    The smallest element of information in a digital system  A bit can be  either a zero or a one     bps bits per second    A measurement of transmission speed across a data connection     Digium  Inc  Page 67    Appendix C Glossary and Acronyms    broadband    Broadband transmission shares the bandwidth of a particular medium   copper or fiber optic  to integrate multiple signals  The channels take up  different frequencies on the cable  integrating voice  data  and video over  one line     channel   A generic term for an individual data stream  Service providers can use  multiplexing techniques to transmit multiple channels over a common  medium    Cat5   Category of Performance for wiring and cabling  Cat 5 cabling support  applications up to 100 MHz    Cat5E    Category of Performance for wiring and cabling  Category 5 Enhanced  wiring supports signal rates up to 100 MHz but adheres to stricter quality  specifications     CLEC competitive local exchange carrier    A term for telephone companies established after the  Telecommunications Act of 1996 deregulated the LECs  CLECs compete  with ILECS to offer local service  See also LEC and            Digium  Inc  Page 68    Appendix C Glossary and Acronyms    CO central office    The CO houses local switching equipment       local access lines in a  particular geographic area terminate at this facility  which is usually  owned and operated by an ILEC      CPE customer premises equipment    Terminal equipment which is connect
36. ty    To reduce the risk of damaging the unit or your equipment  do not  attempt to open the enclosure or gain access to areas where you are            instructed to do so  Refer servicing to qualified service personnel      gt   gt               Save these instructions for future reference     Digium  Inc  Page 9    TABLE OF               5    Chapter 1   e iii nie                      14                                                                        20  What is AsterisKB                                        21  Asterisk as    Switch                                         21  Asterisk as a Gateway                                    21  Asterisk      the Call Center                                 22  Asterisk in the Network                                    22  Asterisk Everywhere                                      22   Chapter 2   Card Installation            iii            REEL 23  Unpacking the Card                                      24  Shipment Inspection                                      24  Identifying Communication Ports                            25  T1 E1 Selection                                         27  Identifying Multiple Cards                                  27  Connecting Timing Cables                                 28  Slot Compatibility                                       1 30  Hardware Installation                                     32  Software Installation                                      33  Installing Asterisk            
37. ty issues  may result from choosing a taps length greater than the server s ability to    process the echo in real time  If audio quality is affected  reduce the taps  length or combine your     400 Series card with Digium s             128     Users of Digium s             128 hardware echo cancellation module will  have 128ms of echo cancellation performed at all times unless explicitly  disabled by setting the echocancel variable equal to  no      Digium  Inc  Page 43    Chapter 3  Configuration    Signalling   pri cpe for CPE side  pri net for NET side    If you have a T1 PRI  add these lines to the following lines of the sample  file    signalling   pri cpe  national    switchtype  group   1  context   incoming  channel   gt  1 23    El PRI  signalling   pri cpe  switchtype   euroisdn  context   incoming  channel   gt  1 15 17 31    You can also configure a T1 channel bank of phones  signalling   fxo ks  group   1  context   phones  channel     1 24         channel bank  signalling   fxo ks  group   1  context   phones  channel     1 15 17 31    Note  More detailed troubleshooting information is provided on http     ww w asterisk org     Digium  Inc  Page 44    Chapter 3  Configuration    Configuring T1 E1 Lines    1  Begin by opening the system conf file from the  etc dahdi directory     2  Specify the two letter country code for your loadzone and defaultzone   This will preload tone zone data and specify a default tone zone for  your interfaces     The following is a t
38. ull duplex    Data transmission in two directions simultaneously     FXO Foreign Exchange Office    Receives the ringing voltage from an FXS device     FXS Foreign Exchange Station    Initiates and sends ringing voltage     Digium  Inc  Page 70    Appendix C Glossary and Acronyms    G 711    A recommendation by the Telecommunication Standardization Sector              for an algorithm designed to transmit and receive mulaw PCM  voice and A law at a digital bit rate of 64 Kbps  This algorithm is used for  digital telephone sets on digital PBX     G 723 1    A recommendation by the Telecommunication Standardization Sector   ITU T  for an algorithm designed to transmit and receive audio over  telephone lines at 6 3 Kbps or 5 3 Kbps    G 729a    A recommendation by the Telecommunication Standardization Sector   ITU T  for an algorithm designed to transmit and receive audio over  telephone lines at 8 Kbps    H 323   A recommendation by the Telecommunication Standardization Sector   ITU T  for multimedia communications over packet based networks   IAX Inter Asterisk eXchange    The native VoIP protocol used by Asterisk  It is an IETF standard used to  enable VoIP connections between Asterisk servers  and between servers  and clients that also use the IAX protocol     Digium  Inc  Page 71    Appendix C Glossary and Acronyms    iLBC internet Low Bitrate Codec   A free speech codec used for voice over IP  It is designed for narrow band  speech with a payload bitrate of 13 33 kbps  fra
39. ut should be similar to the  following     0000 01 0e 0 ISDN controller  Unknown device  di61   card identifier      Note  The output from Ispci may or may not state  Unknown  device     If it does  this does not indicate a problem     In the PCI device listing shown above    card identifier   will be  populated with one of the identifiers listed in the table below     Digium  Inc  Page 35    Chapter 2           Installation    Table 1  Card Identifiers                Model Identifier      420   0420      420 0420      420 1420  TE412P 0410  TE410P 0410  TE407P 0405  TE405P 0405                A Digium TE400 Series  TE420B       420   412P   410P   407P    405    card identifier should be listed  If a matching card identifier is  not listed  then your machine is not PCI 2 2  or higher  or PCI Express  compatible  and the card will not work with your motherboard     2  Download the latest version of libpri  Substitute the version of libpri  for the X X in the command line below  libpri is available for  download from   http   downloads digium com pub telephony libpri         wget http   downloads digium com pub telephony   libpri libpri X X current tar gz    Note  There is no coorelation between the versioning of libpri and  Asterisk  The libpri 1 4 branch will function with the Asterisk 1 6    Digium  Inc  Page 36    Chapter 2           Installation    branch     3  Expand the downloaded file  compile its contents  and install the  libraries  Substitute the version of libpri 
40. ypical setup for a telco in the US   loadzone   us  defaultzone   us    3  Configure the SPAN Map     For each   1   1 you are using  you will need to define a span  The  SPAN map includes defining the SPAN number  timing  line build out   framing  and coding  Configuration details for each of these items is  explained in this section     span   gt    Number     Timing     Line Build  Out gt   lt Framing gt   lt Coding gt   Yellow     Number     This is the port the   1   1 line is plugged into  Port 1 being the furthest  span from the PCI bus  The port numbers are noted on the PCI bracket     Digium  Inc  Page 45    Chapter 3  Configuration    Timing   This determines how timing is handled by the card     0   Card provides its own timing   1   Receives timing from remote end   2   Receives secondary backup timing from remote end  3   Receives tertiary backup timing from remote end   4   Receives quaternary backup timing from remote end    Only one span can be defined to take timing  and it defines timing for  the rest of the card s spans     Line Build Out   For most setups the line build out is 0       0 db  CSU    0 133 feet  DSX 1     133 266 feet  DSX 1      266 399 feet  DSX 1      399 533 feet  DSX 1      533 655 feet  DSX 1       7 5db  CSU       15db  CSU       22 5db  CSU     NA           IN  gt     Framing        utilizes framing set for D4  SF  or ESF  El utilizes CAS or CCS     Digium  Inc  Page 46    Chapter 3  Configuration    Coding        coding can be AMI or
    
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