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Chapter 1.Understanding ISDN and the ISU 2x64

2

ISU 2x64 Dual Port ISDN Service Unit User Manual

61200051L1-1D

The ISU 2x64 features two RS-530/EIA-232 DTE interfaces and
two RS-366 dial interfaces (see Figure 1-1). An RS-530/EIA-232-
to-V.35 adapter is available to support V.35 DTE interfaces. Syn-
chronous data transfer rates from 2400 bps to 128 kbps and asyn-
chronous rates from 1200 bps to 115.2 kbps are supported on a
single DTE interface. Synchronous data transfer rates from 2400
bps to 64 kbps and asynchronous rates from 1200 bps to 57.6 kbps
are supported when using two DTE interfaces. For speeds over 64
kbps using a single DTE interface, the industry standard BOND-
ING protocol aggregates the two 64 kbps B channels for a maxi-
mum of 128 kbps.

Dialing from the ISU 2x64 is accomplished in a variety of ways:

•

Dialing manually from the front panel

•

Dialing automatically from stored numbers

•

Dialing through two RS-366 parallel dial interfaces (as in vid-
eo conferencing applications)

•

Dialing over the DTE interfaces using AT command

•

V.25 bis in-band dialing (used in applications such as LAN/
WAN bridging)

•

Dialing when DTR is asserted (some Bridge/Routers raise
DTR when bandwidth on their dedicated line is exceeded)

Figure 1-1

ISU 2x64 Rear Panel

DTE#2

RS530A / RS232

RS366 DIALING PORT

MAINTENANCE

ISDN IFC

POWER

OFF

ON

DTE#1

RS530A / RS232

RS366 DIALING PORT

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Содержание ISU 2x64

Страница 1: ...ice Unit User Manual Part Numbers 1200051L1 U Interface Version 110 VAC 1200051L2 S T Interface Version 110 VAC 1200051L5 S T Interface International 110 VAC 1200051L6 S T Interface International 230...

Страница 2: ...Apple Computer Inc Teleos is a registered trademark of Teleos Communications Inc Windows is a registered trademark of Microsoft corporation 5ESS is a registered trademark of AT T DMS 100 is a trademar...

Страница 3: ...quipment advance notification and the opportunity to maintain uninterrupted service is given 4 If experiencing difficulty with this equipment please contact ADTRAN for repair and warranty information...

Страница 4: ...d can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio frequencies Operation of this equipment in a reside...

Страница 5: ...interference causing equipment standard entitled Digital Appara tus ICES 003 of the Department of Communications Cet appareil numerique respecte les limites de bruits radioelectriques applicables aux...

Страница 6: ...quipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the t...

Страница 7: ...ce 9 ISDN Ordering Codes 9 Chapter 3 Installation 13 Network Connection 13 DTE Data Connection 14 Maintenance interface 15 Dial Interface Connection 16 Chapter 4 Operation 17 Menu Navigation 17 Front...

Страница 8: ...e Busy Out Port 33 Enabled 34 Disabled 34 Setting the Dial Options 34 Front Panel 34 RS 366 34 AT Commands 36 V 25 39 Disabled 42 Setting Auto Answer 42 Disabled 42 Enabled 43 Dump all calls 43 Settin...

Страница 9: ...58 V 110 59 DSU 57 6 ASYNC 59 T Link 59 SAP 59 FALLBACK 60 Point to Point PPP Async to Sync 61 Point to Point Protocol PPP 62 Multilink PPP 62 PPP with Compression 62 Chapter 7 Dial Options 63 Front...

Страница 10: ...DTE Port Answers a Call 83 If you Cannot Connect Calls 84 Chapter 11 Specifications Network Interface 85 DTE Interface 85 Dialing Selections 85 Data Rates Network 85 Data Rates DTE 86 B Channel Aggreg...

Страница 11: ...igure 6 3 LCD Configuration Menu Tree 29 Figure 6 4 Dial Options RS 366 Menu Tree 35 Figure 6 5 Dial Options V 25 bis Menu Tree 39 Figure 6 6 Dial Line Auto Answer Menu Tree 40 Figure 6 7 Data Bits Me...

Страница 12: ...u Tree 57 Figure 6 23 PPP Menu Tree 61 Figure 7 1 VT 100 Dial Options Screen 63 Figure 7 2 Dial Menu Tree 63 Figure 8 1 Quick Setup Menu Tree 65 Figure 9 1 Security Menu Tree 73 Figure 9 2 Remote Conf...

Страница 13: ...on Protocols 60 Table 10 A Troubleshooting Calls 84 Table E A EIA 232 Interface 119 Table E B RS 530 Interface 120 Table E C V 35 Interface 121 Table E D RS 366 Interface 122 Table E E RJ 45 Dial Line...

Страница 14: ...List of Tables viii ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 15: ...s of integrating these services and modernizing communication networks for information movement and man agement efficiency THE ADTRAN ISU 2X64 ADTRAN s ISU 2x64 is a stand alone ISDN service unit that...

Страница 16: ...DTE interfaces For speeds over 64 kbps using a single DTE interface the industry standard BOND ING protocol aggregates the two 64 kbps B channels for a maxi mum of 128 kbps Dialing from the ISU 2x64 i...

Страница 17: ...e ISU 2x64 front panel accommodates a 2 line by 16 character LCD display Seven LED indicators monitor data flow and dis play the status of key DTE interface leads see Table 1 A and Fig ure 1 2 A front...

Страница 18: ...Service and Switched 56 DSUs 2 wire and 4 wire as well as various ISDN terminal adapters ISDN terminal equipment and BOND ING compatible Inverse Multiplexers Figure 1 3 illustrates the ISU 2x64 operat...

Страница 19: ...nual 5 ENTER 1 2 3 4 5 6 7 8 9 0 R S C S T D R D L D T R S R ISU CANCEL ENTER 1 2 3 4 5 6 7 8 9 0 R S C S T D R D L D T R S R ISU CANCEL ENTER 1 2 3 4 5 6 7 8 9 0 R S C S T D R D L D T R S R DSU CANCE...

Страница 20: ...er 1200 051L5 and 1200 051L6 no SPID s are used when the Euro ISDN or VN4 switch type is selected The call will be routed to the appropriate port based on the directory number entered under the local...

Страница 21: ...200 SAP Async 38400 57600 115200f DIAL 56K BONDING Sync 56000 Clear Chan Sync 48000 56000 PPP Sync 2400 4800 9600 19200 38400 56000 V 110 Sync 2400 4800 9600 19200 V 120 Sync 9600 19200 38400 48000 TL...

Страница 22: ...1 All asynchronous rates support flow control 2 All dial up modes support front panel DTR RS 366 AT command and V 25 dialing methods 3 Rates marked with f require flow control 4 Given a choice between...

Страница 23: ...ported by all major local exchange car riers as well as several independent carriers After reviewing the following list order ISDN lines from the local service provider Request the appropriate IOC for...

Страница 24: ...nating voice and data Two directory numbers Applications Host data center internet access bulletin board and modem pooling applications Modem capability Generic data transfer including remote access a...

Страница 25: ...usly Generic Data I 1DN 2B service Data only One directory number I2 is not available for services provided by a Northern Telecom switch Two directory numbers are required for 2B operation In this cas...

Страница 26: ...1D J2 previously Generic Data J 2B service 1B alternating voice data 1B data only Two directory numbers M5 previously Generic Data M 1DN 2B Service 1B alternating voice data 1B data only One directory...

Страница 27: ...eptacle for power ADTRAN ISU 2x64 part numbers 1200051L3 1200051L4 and 1200051L6 require a 230 VAC 50 Hz receptacle for power NETWORK CONNECTION An eight pin RJ 45 modular jack on the rear panel of th...

Страница 28: ...0 to V 35 adapters part number 1200072L1 A maximum cable length of 50 feet is recommended for the RS 530 EIA 232 interfaces If using the RS 530 to V 35 adapter and connected to a full specification V...

Страница 29: ...to the Maintenance port using an EIA 232 cable This interface can be used to set internal S registers dial ISDN connec tions and disconnect calls This port also allows ADTRAN Tech nical Support person...

Страница 30: ...ERFACE CONNECTION If out of band RS 366 dialing is required for applications such as videoconferencing or FAX machines the dialing interfaces of the host DTE should be connected to the dial ports mark...

Страница 31: ...item Up arrow Scrolls up a menu tree Down arrow Scrolls down a menu tree Cancel Exits back one level from the current branch of the menu Press either the Up or Down arrow to scroll through the menu tr...

Страница 32: ...e the Up and Down arrow keys to bounce between the two DTE ports Current Status menus Once this menu is exited the DTE indicators reflect the status of the DTE that was last shown See Table 1 A on pag...

Страница 33: ...0 seconds Passed is momentarily dis played if the ISU 2x64 does not pass the self test see If Self Test Fails on page 77 This is followed by the Current Status mode of DTE 1 The Current Status mode DT...

Страница 34: ...4 DIAL Status Buffer Selecting 1 STATUS from the top of the menu tree displays the contents of the status buffer The Up and Down arrow keys allow the viewing of the last fifty status messages generate...

Страница 35: ...unit press Ctrl V to access the Status Screen see Figure 4 2 The Status Screen displays unit information such as the loop status software revision the result of the initial self test and the status b...

Страница 36: ...e the display shows the Configuration Menu see Figure 4 3 This screen shows the current configuration line and call status for the selected unit See Configuration on page 27 for more information about...

Страница 37: ...t User Manual 23 Chapter 5 Testing TEST OPTIONS Selecting 2 TEST from the top of the menu tree Figure 5 2 or Ctrl T from any VT 100 screen displays available local testing options this screen is shown...

Страница 38: ...k both the B1 and B2 channels toward the network This can be used to allow a far end user to perform a BERT all the way through the network Loopback Protocol This test causes data to be looped back to...

Страница 39: ...r Channel operation and the far end unit must be able to respond to V 54 loopback commands See the section Setting Pro tocol Options to configure the unit for Clear Channel operation The built in 2047...

Страница 40: ...nd far end block errors FEBE occurring on the ISDN interface An incrementing count in NEBE means the prob lem is in the direction of the NT 1 An incrementing count in FEBE means the problem is in the...

Страница 41: ...all type terminal ID dial options auto answer answer tone connect timeout call screening and SBus termination To dial calls over the ISDN the unit must be configured for Dial Line The menu path to sel...

Страница 42: ...ISDN switch the local CO is using by asking the telephone administrator or telephone company representa tive Configure the ISU 2x64 for either Northern Telecom DMS 100 AT T 5ESS or a switch conformin...

Страница 43: ...N dte 1 SPID dte 2 SPID Set SPID Set LDN 5 Dial options 1 Front Panel 2 RS 366 3 AT commands 4 V 25 6 Auto answer 1 Disabled 2 Enabled 3 Dump all calls 7 Answer tone 1 No answer tone 2 Incoming tone 3...

Страница 44: ...Chapter 6 Cofiguration 30 ISU 2x64 Dual Port ISDN Service Unit User Manual...

Страница 45: ...service In some areas voice service is less expensive than data service A Speech call type does not guarantee an end to end digital connection with some local and long distance carriers Audio Audio di...

Страница 46: ...e ISDN line is con figured For instance a point to point line has no SPID Multipoint lines may have one or two SPIDs If the line has only one SPID then it must be entered in SPID DTE 2 It is recommend...

Страница 47: ...es are discarded leaving the original number unchanged When using a VT 100 terminal select the option number corre sponding to the appropriate DTE and press Return SPID and LDN numbers are entered in...

Страница 48: ...one company will need to tell you which feature button number was assigned to the Make Busy feature Enabled To turn on the Make Busy feature configure Busy Out Port for Enabled Disabled To turn off th...

Страница 49: ...Menu Tree 1 sec or EON The ISU 2x64 assumes the dial string is fully entered if more than one second elapses since the last digit was keyed or the unit receives the EON command 2 sec or EON The ISU 2x...

Страница 50: ...ta mode is indicated by the CD signal active See the appendix AT Commands for a listing of the supported AT commands and their functions In addition to the front panel the ISU 2x64 can be con figured...

Страница 51: ...ng a different value to register S3 Before the terminating character is transmitted the command line can be edited by using the backspace character ASCII 008 to erase errors so the proper commands can...

Страница 52: ...ster then press Enter Example ATSS80 5551212 Dialing a Call by the AT Command Processor To dial a call using the DTE terminal and AT commands type ATD and the telephone number on one line and press En...

Страница 53: ...vices The ISU 2x64 supports V 25 bis inband dialing in accor dance with Fascicle V III V 25 bis Malaga Torremolinos 1984 Melbourne 1988 Figure 6 5 Dial Options V 25 bis Menu Tree Recommendation V 25 u...

Страница 54: ...d be selected if V 25 bis is in control of answering incoming calls with the CIC DIC commands since the other settings for Auto answer will override V 25 control of the answer function Figure 6 6 Dial...

Страница 55: ...us format is the most commonly used by V 25 bis This option specifies that the characters should be 7 bit ASCII with the 8th bit ignored it may be either 0 or 1 3 CONFIG 1 Netw options 2 DTE options 3...

Страница 56: ...LAG from the front panel or the VT 100 terminal see Fig ure 6 8 for menu tree Configuring the ISU 2x64 for HDLC FLAG V 25 bis enables in band dialing over a DTE interface using standard synchronous HD...

Страница 57: ...4 does not accept any incoming calls This keeps the line clear for outgoing calls Setting Answer Tone Answer tone is configured separately for both DTE 1 and DTE 2 Using the front panel select the app...

Страница 58: ...tone This option enables the Answer tone on outgoing calls Always tone This option enables the Answer tone on either incoming or out going calls 3 CONFIG 1 Netw options 2 DTE options 3 Protocol 4 Quic...

Страница 59: ...63 to review how to store numbers Figure 6 11 illustrates the menu tree for setting call screening Figure 6 11 Call Screening Menu Tree 3 CONFIG 1 Netw options 2 DTE options 3 Protocol 4 Quick setup 5...

Страница 60: ...a call to the ISU 2x64 with the stored number to see if it answers properly 4 If the ISU 2x64 does not answer the call check the Call ID message in the Status Buffer More than likely the Call ID numb...

Страница 61: ...vice or a service providing a permanent con nection between end points The distance can be up to 18000 feet Figure 6 13 Leased Line Menu Tree Selecting Leased Line configures the unit for leased line...

Страница 62: ...channel rate is set to 64 kbps each DTE port is assigned one of the bearer channels For example if two ISU 2x64 units are configured for leased line service and the channel rate is set to 64 kbps in...

Страница 63: ...the leased line to 128 kbps and set the DTE rate for DTE 1to 128 kbps synchro nous The DTE rate for DTE 2should be set at 56 kbps or lower Enter these settings into both units This allows an applicat...

Страница 64: ...onous operation before at tempting to make an asynchronous call Failure to do so causes the call attempt to fail Figure 6 16 Asynchronous DTE Options Menu Tree Figure 6 17 Synchronous DTE Options Menu...

Страница 65: ...change state one millisecond after the DTE Request to Send signal changes state The 18 ms delay causes the Clear to Send signal to change state 18 milliseconds after the DTE Request to Send signal cha...

Страница 66: ...ignal is in the active state The unit attempts to establish a call using SN0 until the call is established or DTR goes inactive Answer if On only allows the unit to answer an incom ing call if DTR is...

Страница 67: ...2x64 slaves to an external transmit timing source The external clock is provided to the ISU 2x64 by the external transmit clock signal at the DTE connector 3 CONFIG 1 Netw options 2 DTE options 3 Pro...

Страница 68: ...on one DTE port at a time If both DTE 1 and DTE 2 are set for AT com mands under Dial Options then autobaud will be active on DTE 2 only To make autobaud active on DTE 1 change the Dial Options on DT...

Страница 69: ...rate adapta tion protocols Clear Channel no rate adaptation protocol synch only BONDING mode 1 Bandwidth on Demand Interoperability Group CCITT V 120 CCITT V 110 DSU 57 6 ASYNC T LINK Dial DDS DSU CSU...

Страница 70: ...n excess of 64 kbps to a maximum of 128 kbps BONDING provides high speed communication between ISU 2x64s ISDN TE TAs and inverse multiplexing equipment sup porting the BONDING protocol The protocol al...

Страница 71: ...ory default setting of 10 seconds However when interoperating with other manufacturers BONDING equipment it may be necessary to lengthen this timer to match TXADD01 Values of 1 2 5 10 default 20 50 10...

Страница 72: ...r negotia tion Values of 1 2 5 10 default 20 50 100 and 200 seconds may be selected TCID This option specifies the length of time both endpoints attempt to negotiate an agreeable value for bearer chan...

Страница 73: ...connections using this protocol Figure 6 21 illustrates the menu path for selecting DSU 57 6 ASYNC T Link The T Link protocol allows the ISU 2x64 to communicate with 2 wire Switched 56 DataPath DUs T...

Страница 74: ...llows for FALLBACK operation 1 Any asynchronous bit rate up to 115 2 kbps which is support ed by the DTE 2 Flow control must be enabled and supported by the DTE FALLBACK supports the following protoco...

Страница 75: ...otocol allows the ISU 2X64 and a PC or Macintosh run ning PPP software to communicate with a PPP compatible bridge or router The PPP async sync protocol complies with Internet Engineering Task Force I...

Страница 76: ...link PPP or by setting S register S27 to a value of 1 See Figure 6 23 In this mode the ISU 2x64 dials a second number to establish a second point to point link Once the second PPP is established multi...

Страница 77: ...ailable dialing options see Figure 7 2 Access the VT 100 Terminal Dial Options Screen Figure 7 1 by pressing Ctrl D from any screen The dial options are only available when the ISU is configured for D...

Страница 78: ...answer incoming calls whenAuto answer is configured for disable Auto answer is described in the section SettingAutoAnswer Dial stored Dial one of ten stored phone numbers The Up and Down arrows permi...

Страница 79: ...1 For fine tuning a particular application and DTE settings see DTE Options for Asyn chronous and Synchronous Operation on page 50 for step by step procedures for detailed configuration of the DTE Opt...

Страница 80: ...llback 57 6 If indicated with an asterisk the option requires the end user to configure the ISDN switch type SPID1 LDN1 and SPID2 LDN2 See the section Setting the Dial Options Dial 56K sync When the I...

Страница 81: ...smit data clock Normal clock source V 54 Loopbacks Accepted Dial 112K sync When the ISU 2x64 is configured for Dial 112K sync service the following parameters are automatically preset Service type ISD...

Страница 82: ...ine Forced On Transmit data clock Internal clock source BONDING timer TXINIT 10 seconds BONDING timer TXFA 10 seconds BONDING timer TXADD01 50 seconds BONDING timer TXDEQ 50 seconds BONDING timer TANU...

Страница 83: ...ts none Stop Bits 1 DTE connector bit rate 115 2 kbps DTE flow control none RTS line 1 mS delay CTS line Forced On Dialing Mode AT Commands Fallback 57 6k When the ISU 2x64 is configured for FALLBACK...

Страница 84: ...s DTE flow control none RTS line 1 mS delay CTS line Forced On Transmit data clock Normal clock source Ldm 64K Master When the ISU 2x64 is configured for a point to point application such as a Limited...

Страница 85: ...Mode Front Panel Data protocol Clear Channel DTE connector bit rate 64 kbps DTE flow control none RTS line 1 ms delay CTS line Forced CTS CD line Normal DSR line Forced on Transmit Data Clock Normal...

Страница 86: ...Chapter 8 Quick Setup 72 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 87: ...able on the LCD display The LCD can be toggled between DTE1 and DTE2 current status displays with the cursor keys Any key other than a cursor key prompts the user for a password If the en tered passw...

Страница 88: ...ered in the password option Lock Keypad Lock Keypad locks the front panel keypad and displays a brief message on the LCD indicating that the front panel is locked The top menu is displayed after the m...

Страница 89: ...ote 1B Lpbk remote 1B causes the ISU 2x64 to make a call to a remote ISU and place the remote ISU into a 1B channel loopback When the remoted unit is looped back the local unit will send a test patter...

Страница 90: ...Chapter 9 Security and Remote Configuration 76 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 91: ...e problem can be fixed locally 1 Ensure the ISU 2x64 is receiving power 2 Turn off the ISU 2x64 while holding down 0 then power back on 3 Continue to press down 0 for 15 seconds This resets all the in...

Страница 92: ...s or you get a not in service intercept there is probably something wrong with the translation of the line The phone service provider should be able to help 3 If the ISU 2x64 continues to display Link...

Страница 93: ...an NT1 in a wiring closet somewhere F Ensure nothing else is bridged across the ISDN line pair G With a minimum of extra wiring try connecting to the ISDN line pair at the point where service provider...

Страница 94: ...entifier TEI Ask them to check the line translation and ensure that the line supports dynamic TEI allocation If using the ISU 2x64 part number 1200051L1 or 1200051L3 with the U interface tell them tha...

Страница 95: ...s in one or both of the following places The ISU 2x64 software setup The telephone service provider s software setup To isolate the problem perform the following procedure A Ensure the ISDN line is mu...

Страница 96: ...2x64 is set up with the correct SPIDs and LDNs C Try swapping SPID1 with SPID2 and LDN1 with LDN2 Determine if the problem is the second phone number or the quantity of phone numbers D Try another pie...

Страница 97: ...N numbers as follows SPID1 201555701111 LDN1 5557011 SPID2 201555702222 LDN2 5557022 If you were to enter the pairs for DTE 1 as SPID1 LDN2 and SPID2 LDN1 the ISU 2x64 would get confused during incomi...

Страница 98: ...service for example 10288 for AT T If this does not work then most likely the problem is the long distance service provider Another possibility is that the local service provider is not providing long...

Страница 99: ...bers 1200051L2 1200051L4 1200051L5 and 1200051L6 DTE Interface Two DB 25s each RS 530 EIA 232 interfaces V 35 interfaces available with RS 530 to V 35 adapters part number 1200072L1 Dialing Selections...

Страница 100: ...peeds over 64 kbps from a single DTE interface RFC 1717 Multilink PPP used for speeds over 57 6 kbps for a single DTE interface Rate Adaptation T Link CCITT V 120 CCITT V 110 Clear Channel SAP FALLBAC...

Страница 101: ...g data from thefar end CD Carrier Detect On when the ISU 2x64 is ready to transmit data TR Data Terminal Ready from DTE On when DTR is active at the DTE interface SR Data Set Ready Environmental Opera...

Страница 102: ...Chapter 11 Specifications 88 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 103: ...r mode D Dial Precedes the telephone access number ATD5551212 H Hang up Disconnects the current call O On line Commands the unit to go back on line S S Register SS S String register Z Reset Resets the...

Страница 104: ...sters to factory preset values F1 Configures unit for Dial 56k sync F2 Configures unit for Dial 64k sync F3 Configures unit for Dial 112k sync F4 Configures unit for Dial 128k sync F5 Configures unit...

Страница 105: ...ata Synchronous Data Clocking Options X0 Internal transmit clock X1 External transmit clock Assigning Stored Numbers for Dialing Options Z0 Stored number 0 Z1 Stored number 1 Z2 Stored number 2 Z3 Sto...

Страница 106: ...ple connect message X1 7 Connect messages with bit rate Ready To Send RTS Control Line Options _D0 1 mS delay _D1 18 mS delay MakeBusy Options _B0 Make DTE port not busy same as S135 0 _B1 Make DTE po...

Страница 107: ...rs 1200051L5 and 1200051L6 ISDN U Interface Operational Mode Options _X0 ISU timing slaves to network NT mode _X1 ISU is U interface timing master LT mode Data Flow Control Options Q0 No flow control...

Страница 108: ...Appendix A AT Commands 94 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 109: ...5ESS Ready The ISU is connected to an AT T 5ESS switch and is ready to place receive calls Call Connect B1 Bearer channel 1 is connected and is active Call Connect B2 Bearer channel 2 is connected and...

Страница 110: ...N 1 Ready The ISU is connected to an ISDN 1 compliant switch and is ready to place receive calls Link down The network interface is not active Link In Sync The ISU has successfully connected to the ne...

Страница 111: ...s registering its first SPID with the network Register SPID 2 The ISU 2x64 is registering its second SPID with the network RINGING The phone number just dialed is ringing xxxx nnnn A rate adaptation i...

Страница 112: ...ual 61200051L1 1D DSTOP DSU 57 6 Async rate adaptation protocol DSU57 6 ADTRAN DSU asynchronous protocol FALLBACK FALLBACK rate adaptation protocol SAP Simple Adtran Protocol TLINK TLINK rate adaptati...

Страница 113: ...g phone number is displayed if available ACCESS_INFO_DISCARDED The network was unable to deliver access information to the far end Back to online ISU 2x64 went back on line Bad async BPS The BONDING p...

Страница 114: ...found during end to end negotiations Baud Rate ISU 2x64 does not support the negotiated TLINK baud rate BEAR_CAP_NOT_AVAIL The bearer channel requested by the user is not available Bearer mode Incomi...

Страница 115: ...esent CALL_REJECTED The call has been rejected by the ISDN network Can t go online ISU 2x64 cannot go back on line User issued an unknown AT command CAP_NOT_IMPLEMENTED The network or far end does not...

Страница 116: ...p or disconnect occurring during BOND ING Does not indicate an error condition has occurred DTE must be SYNC For the protocol chosen the DTE connector must be optioned as synchronous DTE not set V25 T...

Страница 117: ...ned a flow control mismatch FlowCtl required Bonding negotiation determined that flow control needs to be op tioned on Hangup1 2 The call on either the first or second channel was disconnected by the...

Страница 118: ...er interface is not active L3 not up Call has been attempted while the call control interface is not ac tive L2 2 not up Call has been attempted while the data link layer interface for a second call B...

Страница 119: ...ork is out of order No 48K Support The ISU 2x64 does not support 48 kbps TLINK Local DTE setup error NO_CIRCUIT_AVAILABLE The requested bearer channel is not available NONEXISTENT_MSG Nonexistent mess...

Страница 120: ...rmined the far end unit is not another ISU Asynchronous rates can only be supported between two ADTRAN ISUs when Rev 0 Bonding Mode 1 is selected Rev 1 Bonding Mode 1 will interoperate with other vend...

Страница 121: ...at tempted to call into the ISU 2x64 while optioned for BONDING TEMPORARY_FAILURE The network has temporarily failed try the call again TIMER_EXPIRY Call control error TLINK ErrorOne Catastrophic TLI...

Страница 122: ...cmd User issued an unknown AT command UNSPECIFIED_CAUSE Received a cause message from the network that is not under stood Unsupported baud The ISU 2x64 does not support the negotiated baud rate USER_...

Страница 123: ...to the desired ASCII value Range 0 to 127 S3 END OF LINE Determines which key or character in ASCII code CHARACTER ends a command line The standard end of line char acter is the carriage return ASCII...

Страница 124: ...FALLBACK protocol cannot be used when this option is set 0 Remote Config enabled 1 Remote Config disabled S12 ESCAPE TIME Determines the delay required immediately before and after entering the escape...

Страница 125: ...COMP in setup messages for CCITT V 120 calls Some terminal adapters require that this bit be set to connect V 120 calls 0 Set V 120 bit in call setup message default 1 Do not set V 120 bit in call se...

Страница 126: ...connectors 0 Force CD on always 1 CD is active during a call default 2 LOCD 3 Off Link Down S34 DTE DTR Determines how the ISU 2x64 responds to changes in DTR 0 Ignore DTR default 1 Force AT command...

Страница 127: ...56 50 sec is default S43 BOND TXDEQ The number of seconds both endpoints attempt to equalize the network delay between the bearer chan nels before determining the BONDING call has failed 0 to 256 5 se...

Страница 128: ...20 seconds or EON S50 LINE MODE Selects the operating mode of the ISU 2x64 0 Dial service switched service default 1 Leased service non switched service S51 LINE CLOCK Selects the clock mode in leased...

Страница 129: ...AT commands 3 V 25 bis dialing S56 ECHO TONE Enables an echo tone which suppresses the echo can cellers in a voice circuit Can be used to trick the switch to allow sending data over a line optioned f...

Страница 130: ...string location SS63 LDN2 LOC Secondary local directory number string location S70 DTE MODE Selects asynchronous or synchronous mode on the DTE connector 0 Asynchronous 1 Synchronous default S71 DTE R...

Страница 131: ...transmit clock timing source 0 Internal ISU 2x64 supplies timing default 1 External DTE supplies timing S135 Value determines whether or not the ISDN switch should consider a DTE port busy S23 must b...

Страница 132: ...Appendix D S Register List 118 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 133: ...I O Signal Ground 8 CD O Carrier Detect 9 NC N A No Connection 10 NC N A No Connection 11 NC N A No Connection 12 NC N A No Connection 13 NC N A No Connection 14 NC N A No Connection 15 TC O Transmit...

Страница 134: ...11 ETC B I External Transmit Clock return 12 TC B O Transmit Clock return 13 CTS B O Clear To Send return 14 TD B I Transmit Data return 15 TC A O Transmit Clock 16 RD B O Receive Data return 17 RC A...

Страница 135: ...S SD B I Send Data return T RD B O Receive Data return U TC A I External Transmit Clock V RC A O Receive Clock W TC B I External Transmit Clock return X RC B O Receive Clock return Y ST A O Send Timin...

Страница 136: ...nt Next Digit 6 PWI O Power Indication 7 SG I O Signal Ground 13 DSC O Distant Station Connect 14 NB1 I Digit LSB 15 NB2 I Digit bit 2 16 NB4 I Digit bit 3 17 NB8 I Digit bit MSB 22 DLO O Data Line Oc...

Страница 137: ...ISU 2x64 Dual Port ISDN Service Unit User Manual 123 Table E F RJ 45 Dial Line Connector S T Interface Pin Description 3 TxP 4 RxP 5 RxN 6 TxN Table E G Maintenance Connector Pin Description 1 CD 2 R...

Страница 138: ...Appendix E Connector Pinouts 124 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 139: ...ur telephone service needs to meet certain requirements A general descrip tion of these requirements follows Depending on your actual data service needs some features may be deleted Other features may...

Страница 140: ...L5 and 1200051L6 also do not include NT1 functionality Name _____________________________________________________________________ Address ______________________________________________________________...

Страница 141: ...ximum B Channels 2 Circuit Switched Voice Bearer CSV Channels Any Number of CSV calls 1 recommended for testing purposes Circuit Switched Data CSD Bearer Channels Any Number of CSD calls 2 Terminal Ty...

Страница 142: ...TEI Dynamic Bearer Service Circuit Switched Voice and Data Permitted on any B Channel Packet mode data not permitted Identify your long distance carrier of choice and request circuit switched 64 kbps...

Страница 143: ...s Circuit mode voice service for speech and 3 1 kHz audio Circuit mode data service for 56 kbps and 64 kbps unrestricted data Two simultaneous calls supported on the interface Any mix of speech and da...

Страница 144: ...the previous features are not available compare the actual data service requirements with those which are available A likely problem is the lack of a clear trunk to provide 64 kbps unre stricted data...

Страница 145: ...vide a variety of supplementary features which the ISU 2x64 may not support Enabling these features may have undesirable consequences Avoid the following fea tures Packet Mode Data Multiline hunt grou...

Страница 146: ...configurations on DMS 100 lines Multipoint with one phone number 1B D service Multipoint with two phone numbers for 2B D service The requirements for the DMS 100 multipoint line are defined in the se...

Страница 147: ...SU 2x64 Continue to press down 0 for 15 seconds This will re set all the internal settings to factory defaults 4 The ISU 2x64 is now set up for 5ESS Custom If this is not the correct line type select...

Страница 148: ...Appendix F Ordering ISDN Without IOCs 134 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 149: ...t CIC Connect Incoming Call CTS Clear to Send DCE Data Communications Equipment DMS Digital Multiplex Switching DSR Data Set Ready DTE Data Terminal Equipment EKTS Electronic Key Telephone Service FAX...

Страница 150: ...vice Unit User Manual 61200051L1 1D PRI Primary Rate Interface SPCS Stored Program Controlled Switching System SPID Service Profile Identifier TA Terminal Adapter TE Terminal Equipment TEI Terminal En...

Страница 151: ...nnel is capable of carrying tells you what kinds of communica tions can be carried on it For example a wide band circuit can carry a TV channel A wide band circuit that is capable of providing one vid...

Страница 152: ...eveloped for use between stored program switching systems All of the signalling information for a group of trunks is transmitted over a dedi cated high speed data link rather than on a trunk CCIS redu...

Страница 153: ...ment The main difference between DCE and DTE is that pins 2 and 3 are reversed on the EIA 232 Frame A group of bits sent serially over a communications channel Generally a local transmission unit sent...

Страница 154: ...an interexchange carrier Loopback A diagnostic procedure where data is sent to the device being tested and the out put of the device is fed directly back to its input looped around and the returning...

Страница 155: ...rmation for different users by statistically multiplexing them over the same transmission facilities ISDN packet mode capa bilities are based on CCITT Recommendation X 25 procedures point to point Des...

Страница 156: ...les non ISDN terminal equipment to communicate over ISDN TE1 terminal equipment type 1 ISDN compatible terminals TE2 terminal equipment type 2 Non ISDN terminal equipment linked at the EIA 232 RS 449...

Страница 157: ...arks the line of demarcation between cus tomer owned equipment and the public network V 32 9 6 kbps 2 wire duplex modem standard videoconferencing The real time usually two way transmission of digitiz...

Страница 158: ...Glossary 144 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 159: ...ands 85 89 AT T 5ESS 28 audio 31 auto answer 40 setting 42 autobaud 54 B B channel aggregation 86 bit rate 51 BONDING mode 1 56 busy out port disabled 34 enabled 34 setting 33 C call screening setting...

Страница 160: ...ed 64 dial stored 75 dialing 2 dialing options answer call 75 dial number 75 V 25 bis 39 dialing options screen 63 dialing selections 85 disabled 34 display 87 DSR options 52 DSU 57 6 async 59 DTE dat...

Страница 161: ...ta set ready 87 data terminal ready from DTE 87 receive data 87 request to send 87 transmit data 87 LED indicators 87 limited distance modem application 48 lock keypad 74 loopback both DTEs 26 loopbac...

Страница 162: ...23 RJ 45 dial line connector U interface 122 RS 366 dialing out of band 16 RS 366 interface 121 122 RS 366 interface 85 RS 530 interface 120 RS 530 to V 35 adapters 14 RTS options 51 S SAP 59 Sbus ter...

Страница 163: ...3 troubleshooting 77 troubleshooting calls 84 TXADD01 57 TXDEQ 58 TXFA 57 TXINIT 57 V V 110 59 V 120 58 V 25 39 V 25 async dialing 40 V 25 bis 85 V 25 HDLC flag 42 V 25 sync bisync dialing 42 V 25 syn...

Страница 164: ...Index 150 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1 1D...

Страница 165: ...able Technical Support 888 4ADTRAN Repair and Return If ADTRAN Technical Support determines that a repair is needed Technical Support will coordinate with the Customer and Product Service CAPS departm...

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