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ADTRAN ISU 512 User Manual

ADTRAN ISU 512 User Manual

Adtran isdn service unit user manual isu 512
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ISU 512 (U Interface)
ISU 512 ST (ST Interface)
RS-530 to V.35 Adapter
RS-366 Y Cable
RJ-45 to DB-25 Adapter
61202.086L1-1B
September 1997
ISU 512
ISDN Service Unit
USER MANUAL
Part Number
1202086L1
1202086L2
1200072L1
1200120L1
3196.ADPT003

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Summary of Contents for ADTRAN ISU 512

  • Page 1 ISU 512 (U Interface) ISU 512 ST (ST Interface) RS-530 to V.35 Adapter RS-366 Y Cable RJ-45 to DB-25 Adapter 61202.086L1-1B September 1997 ISU 512 ISDN Service Unit USER MANUAL Part Number 1202086L1 1202086L2 1200072L1 1200120L1 3196.ADPT003...
  • Page 2 Trademark: 5ESS is a registered trademark of AT&T DMS-100 is a trademark of Northern Telecom, Inc. ISU is a trademark of ADTRAN, Inc. 901 Explorer Boulevard P.O. Box 140000 Huntsville, AL 35814-4000 Phone: (205) 963-8000 © 1997 ADTRAN, Inc. All rights reserved.
  • Page 3 4. If experiencing difficulty with this equipment, please contact ADTRAN for repair and warranty information. The telephone company may require this equipment to be disconnected from the network until the problem is corrected, or it is certain the equipment is not malfunctioning.
  • Page 4 FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protec- tion against harmful interference in a residential environment.
  • Page 5 CANADIAN EMISSIONS REQUIREMENTS This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus," ICES-003 of the Department of Communications. Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Class B prescrites dans la norme sur le materiel brouilleur: "Appareils Numeriques,"...
  • Page 6 CANADIAN EQUIPMENT LIMITATIONS Notice: The Canadian Industry and Science Canada label identifies certified equip- ment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The Department does not guarantee the equipment will operate to the user’s satisfaction. Before installing this equipment, ensure that it is permissible to be connected to the fa- cilities of the local telecommunications company.

  • Page 7: Quick Start Guide

    LDN2 5551213 To configure the ISU 512 from the front panel press Enter from the initial sta- tus screen and continue entering the appropriate numbers until the Switch type, SPIDs and LDNs have been entered. (Note: Outside the U.S. and Canada, you will not need to enter SPIDs.)
  • Page 8 SPID6/LDN6 SPID7/LDN7 SPID8/LDN8 To configure the ISU 512 using the VT 100 terminal interface, use the following procedure: Connect a VT 100 async terminal, or personal computer with a terminal emulator package, to the Chain In port using an RJ-45 cable and the RJ-45 to DB-25 adapter (part number 3196.ADPT003).

  • Page 9: Table Of Contents

    Chapter 1. Understanding ISDN and the ISU 512 ... 1 ISDN Overview ... 1 Product Overview ... 1 ISU 512 Interoperability ... 4 Recommended Operating Protocols... 5 Chapter 2. Ordering ISDN... 7 Chapter 3. Installation ... 9 Installation... 9 Network Connection... 9 DTE Data Connection ...
  • Page 10 Maintenance Setup ... 37 Auto Traps... 37 ADLP Address ... 37 Port Mode ... 37 Call NumID ... 38 Configuring the ISU 512 for Leased Digital Service... 39 Clock Mode... 39 Channel Rate ... 40 Test Remote ... 41 Maintenance Setup ... 41 Auto Traps...
  • Page 11 Redial Last Number ... 54 Answer Call... 54 Dial Stored Number ... 54 Store/Review Number ... 55 Configuring the ISU 512 for V.25 bis In-band Dialing... 56 Chapter 6. Testing ... 57 Test Options ... 57 Loopback DTE... 57 Loopback Protocol... 57 2047 Checker ...
  • Page 12 Table of Contents Rate Adaption ... 67 Interoperability ... 67 D Channel Switch Compatibility ... 68 B Channel Aggregation ... 68 Display ... 68 Environmental ... 68 Physical ... 68 Power... 68 Appendix A. Status Buffer Messages ... 69 Appendix B. S-Register List ... 79 Appendix C.
  • Page 13 List of Figures Figure 1-1: ISU 512 Rear Panel ... 2 Figure 1-2: ISU 512 (U interface) Applications ... 4 Figure 3-1: Maintenance Port VT 100 Menu ... 12 Figure 3-2: VT 100 Configuration Menu ... 15 Figure 3-3: VT 100 Configuration Menu 2 ... 15 Figure 3-4: VT 100 Status Screen ...
  • Page 14 Table of Contents 61202.086L1-1 User Manual 61202.086L1-1...

  • Page 15: List Of Tables

    Table 1-A: ISU 512 Synchronous Rates ... 5 Table C-A: AT Commands ... 85 Table D-A: Pinouts for Chain In and Chain Out Ports ... 89 Table D-B: Pinouts for IFC RJ-45 Connectors ... 90 Table D-C: RS-366 Dialing Port Pinouts ... 91 Table D-D: RS-530 Pinouts ...
  • Page 16 Table of Contents viii 61202.086L1-1 User Manual 61202.086L1-1...

  • Page 17: Chapter 1. Understanding Isdn And The Isu 512

    The ADTRAN ISDN Service Unit (ISU nects data terminal equipment (DTE) to the ISDN network or to a leased digi- tal network for data transmission. The ISU 512 is a basic inverse multiplexer that provides cost-effective high-speed data transmission for a single applica- tion at rates up to 512 kbps.

  • Page 18: Figure 1-1: Isu 512 Rear Panel

    ISDN terminal adapters. The ISU 512 is in- tended to support the transfer of data and images over ISDN. The ISU 512 has four RJ-45 jacks available on the rear panel for network con- nection (see Figure 1-1).
  • Page 19 (as in a limited distance modem or leased line application) with no dialing necessary. The ISU 512 is designed to operate in a dual-port mode for videoconferencing at 112/128 kbps. This allows end-to-end compatibility when communicating with a video system that is utilizing two Switched 56 DSUs or a dual-port ISDN terminal adaptor.

  • Page 20: Isu 512 Interoperability

    •TSU with Dial Backup Module (DBU) ISDN SWITCH •Up to 512 kbps of backup bandwidth The ISU 512 (ST interface) will also support these configurations but will require an external NT1 for each BRI line. Up to 4 BRI U-Interfaces ISU 512 RS-530/V.35...

  • Page 21: Recommended Operating Protocols

    SW56 lines or one dual-port ISDN device, the 2 x clear channel protocol (dual-port mode) is used. The ISU 512 automatically uses the 2 x clear channel protocol whenever it does not find a BONDING partner. The first call (incoming or outgoing) connects to the V.35 port in 2 x clear channel protocol.
  • Page 22 Chapter 1: Understanding ISDN and the ISU 512 ISU 512 User Manual 61202.086L1-1...

  • Page 23: Chapter 2. Ordering Isdn

    Capability S ( previously Generic Data M) ordering code is recommended for ISU 512 applications. It is the most feature-rich and supports most voice and data applications. The voice capability is not necessary for operation of the ISU 512; however it is useful in troubleshooting a misconfigured ISDN line. In some areas, ISDN tariffs may warrant the use of ordering codes with less fea- tures.
  • Page 24 Ordering ISDN Service User Guide part number 60000.015-8, or contact the tele- phone company for alternative line configurations. The Ordering ISDN Service User Guide is available on the ADTRAN home page at http://www.adtran.com (go to the Service and Support page and then to the ISDN Information Desk) or by calling ADTRAN at (205) 963-8000.

  • Page 25: Chapter 3. Installation

    45 connectors marked ISDN IFC #1 , #2 , #3 , and #4 . Connect the Basic Rate in- terfaces to the ISU 512 in order, starting with ISDN IFC #1 , until the maximum number of lines (four) is reached.

  • Page 26: Dte Data Connection

    Chapter 3: Installation DTE DATA CONNECTION Data terminal equipment (DTE) is connected to the ISU 512 by using the V.35 interface, and/or the RS-530 interface on the rear panel of the ISU 512. The maximum cable lengths recommended are 50 feet for the RS-530 interface, or 150 feet for the V.35 interface.
  • Page 27 Channel Rate is not required to make changes to the Call Type. For exam- ple, if the ISU 512 is configured for 384K Call Type, only the #3 suffix is re- quired to change the Call Type to 336K. The dial string 7082906055#3 is the same as 7082906055#3#6.

  • Page 28: The Maintenance Interface

    ISDN connections, and disconnect calls. This port also allows ADTRAN Technical Support personnel to retrieve vital information from the unit if a problem is encountered during initial configuration of the ISU 512. Most problems can be solved without resorting to this port for assistance.

  • Page 29: Software Update

    Connect the PC to the ISU 512 using an RJ-45 to DB-25 adapter (part num- ber 3196.ADPT003) connected from the Chain In (RJ-45) connector on the rear panel of the ISU 512 to the COM port on the PC. See the appendix Pi- nouts for a diagram of this cable.

  • Page 30: Vt 100 Menu Interface

    The VT 100 menu interface can be used by connecting a VT 100 compatible ter- minal to the Chain In port on the back of the ISU 512. The VT 100 terminal (or PC running terminal emulation software) is connected to the Chain In port us- ing the RJ-45 to DB-25 adapter (part number 3196.ADPT003) and the RJ-45 to...

  • Page 31: Figure 3-2: Vt 100 Configuration Menu

    Chapter 3: Installation Figure 3-2 VT 100 Configuration Menu Figure 3-3 VT 100 Configuration Menu 2 61202.086L1-1 ISU 512 User Manual...

  • Page 32: Figure 3-4: Vt 100 Status Screen

    Chapter 3: Installation Figure 3-4 VT 100 Status Screen Figure 3-5 VT 100 Test Menu ISU 512 User Manual 61202.086L1-1...

  • Page 33: Figure 3-6: Vt 100 Dial Menu

    Chapter 3: Installation Figure 3-6 VT 100 Dial Menu 61202.086L1-1 ISU 512 User Manual...
  • Page 34 Chapter 3: Installation ISU 512 User Manual 61202.086L1-1...

  • Page 35: Chapter 4. Operation

    Operation INITIAL SELF TEST The ISU 512 performs an initial self test upon initial installation. Once the self test is successfully completed, the current status mode is displayed. If the ISU 512 is not connected to the network, the Status menu displays DOWN next to the network connection number.

  • Page 36: Menu Structure

    Chapter 4: Operation MENU STRUCTURE The ISU 512 uses a multilevel menu approach to access its many features. All menu operations are displayed in the LCD window or are available from the VT 100 terminal interface. The opening menu is the access point to all other operations. There are four Main menu branches: Status, Test, Configuration, and Dial.

  • Page 37: Configuration (Config) Menu

    Dial provides manual dialing functions. Key in a number to dial or select one of the ten stored numbers. Basic Menu Traversal Four function keys on the left side of the ISU 512 keypad allow the various menu branches to be entered, exited, and scrolled through. The four function keys are defined below:...

  • Page 38: Front Panel

    ISU 512 during an active call. Items such as Leased/Dial line, SPID/LDN, and ISDN switch type, take effect only when the ISU 512 is powered up or the Ba- sic Rate interface is bounced (line broken and restored). Also, items such as Bit Rate, BONDING setup, and Call type take effect only at the beginning of a new call.

  • Page 39: Lcd Window

    The LED indicators monitor data flow and display the status of key DTE inter- face leads described as follows: Request to send. Clear to send. Indicates the ISU 512 is ready to transmit. Transmit data. On when the DTE is transmitting to the ISU 512.
  • Page 40 Chapter 4: Operation ISU 512 User Manual 61202.086L1-1...

  • Page 41: Chapter 5. Configuration

    Chapter 5 Configuration USING ISDN BASIC RATE SWITCHED SERVICE This section explains how to configure the ISU 512 when using ISDN Basic Rate switched service. Figure 5-1 illustrates the entire Configuration branch of the menu tree. 61202.086L1-1 ISU 512 User Manual...

  • Page 42: Figure 5-1 Configuration Menu

    8=Leased Master 9=Ldm SlvMstr 4=DIAL 1=Switch type 1=AT&T 5ESS 2= DMS-100 3=National ISDN1 4=NEC Switch 5=EuroISDN (only available on the ISU 512 ST) 2=Call type 1=Speech 2=Audio 3=Data 56Kbps 4=Data 64Kbps 3=Terminal ID Set SPID <Use Up and Down keys to select SPID 1 to 8>...

  • Page 43: Configuring Network Options For Dial Operation

    CONFIGURING NETWORK OPTIONS FOR DIAL OPERATION This section describes how to configure the ISU 512 for Dial operation such as Switch type, Call type, Terminal ID, Dial options, and Auto answer. To dial calls over ISDN, the ISU 512 must be configured for Dial Line.

  • Page 44: Speech

    Switched 56 service is desired. Data 64 kbps (default) The default Call type for ISDN service is Data 64 kbps. This directs the call control software to request an unrestricted 64 kbps circuit. ISU 512 User Manual 61202.086L1-1...

  • Page 45: Terminal Identification

    For instance, there are no SPIDs for a point-to-point line. Multipoint lines may have one or two SPIDs. The ISU 512 uses the presence of SPID 1 to determine if the line is multipoint. If the line has only one SPID, then it must be entered in SPID 1, SPID 3, SPID 5, and SPID 7, depending on the number of lines being installed.

  • Page 46: Setting The Ldn

    IFC #4 LDN 7 and LDN 8 (pair with SPID 7) Dial Options The ISU 512 can be configured to dial using the front panel (default), EIA-366 parallel dialing port, or V.25 bis; see Figure 5-2. ISU 512 User Manual...

  • Page 47: Front Panel

    DTE RS-366 dialers can end a string of dialed numbers by sending the end of number (EON) to alert the ISU 512 that the entire number has been sent. Another method is to stop sending num- bers and allow the ISU to time out, then dial the number.

  • Page 48: Sec Or Eon (Default)

    EON command. Wait for EON The ISU 512 assumes the dial string is fully entered only if the unit receives the EON command. See the section RS-366 Y Cable in this chapter for information on enabling the RS- 366 Y cable for dual-port video applications.

  • Page 49: Auto Answer

    Auto Answer The ISU 512 can be configured to automatically answer or not answer. Use the following menu path: 3=CONFIG 1=Netw. options 1=Dial Line Disabled When Disabled is selected, the ISU 512 does not answer incoming calls. The ringing call can be dumped using the Hang Up Line command. Disable Auto Answer if V.25 bis is in control of answering incoming calls with the CIC/DIC...

  • Page 50: Connect Timeout

    Chapter 5: Configuration Connect Timeout The Connect Timout option sets the length of time that the ISU 512 waits for a far-end unit to answer an outgoing call. Use the following menu path: 3=CONFIG 1=Netw. options 1=Dial Line Call Screening...

  • Page 51: Remote Access

    Place a call to the ISU 512 with the stored number to see if it answers. If the ISU 512 does not answer the call, look at the Call ID message in the Status buffer. More than likely, the Call ID number is a ten-digit number Store the number in SN0 as it is displayed in the Call ID message and test Call Screening again.

  • Page 52: Remote Supervision

    Chapter 5: Configuration Remote Supervision The ISU 512 has the ability to be remotely accessed and configured from an- other ISU 512. The originating ISU 512 can remotely access another ISU 512 using a smart dial string with a #6 suffix.

  • Page 53: Maintenance Setup

    Selecting ATEL allows the ISU 512 to use ADLP/ATEL protocols to commu- nicate with the ADTRAN ADVISOR SNMP software. Select Terminal Mode to allow access of the ISU 512 using a VT 100 terminal. Use the following menu path to access Maintenance Setup for Dial Line operation: 3=CONFIG 1=Netw.

  • Page 54: Call Numid

    Chapter 5: Configuration Call NumID When Call NumID is enabled, the ISU 512 will send the caller ID INFO setup message to the ISDN switch. When Call NumID is disabled, the caller ID INFO setup message will not be sent to the ISDN switch.

  • Page 55: Configuring The Isu 512 For Leased Digital Service

    CONFIGURING THE ISU 512 FOR LEASED DIGITAL SERVICE This section explains how to configure the ISU 512 when using a 2B1Q Leased Digital service or a service that provides a permanent connection between end points. This mode is only supported by the ISU 512 (U interface).

  • Page 56: Channel Rate

    LEASED MASTER If two ISU 512 units are connected through channel banks, one unit should be configured for Slave mode and the other for Slave (Master); see Figure 5-5. To easily configure ISU 512s for this application, one unit can be optioned using Quick Setup, Leased Slave and the other can be optioned using Quick Setup, Leased Slave(Master).

  • Page 57: Test Remote

    Data Call connected at unexpected data rate. (less than expected) ADLP Address Select ADLP Address to enter an ADLP address to the ISU 512 as required for use with ADTRAN T-Watch Management Software. This address is used when the ISU 512 maintenance port is programmed for ADLP or ATEL mode.

  • Page 58: Setting Dte Options

    The DTE Options menu is used to select the configuration parameters that con- trol the operation of the DTE interface ports of the ISU 512, such as the maxi- mum bit rate and the connector type. Changes to the DTE options affect both ports (RS-530 and V.35) during dual-port mode and single-port modes of op-...

  • Page 59: Connector Type

    The RS-366 Y cable (part number 1200120L1) is used for dual-port video appli- cations. Use the following menu path to enable/disable the RS-366 Y cable: 3=CONFIG 2=DTE options 4=RS366-Y Cable 61202.086L1-1 1=RS-530 2=V.35 (default) 1=Enable 2=Disable (default) 1=Enable 2=Disable (default) ISU 512 User Manual Chapter 5: Configuration...

  • Page 60: Cts Options

    6=CD Options DTR Options Selecting Ignore DTR causes the ISU 512 to disregard the state of the DTR pin. Idle when Off forces the unit to end the current call when DTR is no longer asserted. Off>On dial #0 allows one call attempt to be automatically estab- lished when the DTR signal goes from inactive to active.

  • Page 61: Dsr Options

    DSR Options: 3=CONFIG 2=DTE options 8=DSR Options 61202.086L1-1 1=Ignore DTR (default) 2=Idle when Off 3=Off>On dial #0 4=Dial #0 if On 5=Answer if On 1=DSR forced on (default) 2=OFF Idle+Test 3=OFF Link Down ISU 512 User Manual Chapter 5: Configuration...

  • Page 62: Bonding Setup

    See Recommended Operating Protocols in this chapter for more information on recommended modes of operation. The BONDING mode 1 protocol allows the ISU 512 to communicate at bit rates in excess of 64 kbps to a maximum of 512 kbps. BONDING provides high- speed communication between ISU 512s, ISDN TE/TAs, and inverse multi- plexing equipment supporting the BONDING protocol.

  • Page 63: Txfa

    DTE equipment connected to the ISU also has timer constraints for completing non-BONDING parameter negotiation. Values of 1, 2, 5, 10 (default), 20, 50, 100, and 200 seconds can be selected. 61202.086L1-1 Chapter 5: Configuration ISU 512 User Manual...

  • Page 64: Tcid

    This option specifies the amount of delay placed between calls. The default setting is 0 ms (no delay). Values of 0 ms (default), 100 ms, 200 ms, 500 ms, 1 second, and 2 seconds can be selected. ISU 512 User Manual 61202.086L1-1...

  • Page 65: Transparent 2X Clear Channel Protocol

    RS-530 port. If the ISU 512 is to be used in the application described, then the RS-366 Y cable should be enabled and the connector type for the DTE port should be set to the primary port, the V.35 port.

  • Page 66: Quick Setup Configuration

    DTE Options in this chapter provides a step-by-step process for detailed con- figuration of the DTE Options. To aid in configuring the DTE options for the ISU 512, many common config- urations are preset for Quick Setup. These include various dial, leased, and video options.

  • Page 67: Dial 384K

    Dial 384K When the ISU 512 is configured for Dial 384K service the following parame- ters are automatically preset: Service type Automatic answering ISDN call type Dial options Maximum bit rate DTR options RS-530-V35 cable RS-366-Y cable Dial 448K When the ISU 512 is configured for Dial 448K service the following parame-...

  • Page 68: Video 384K

    Chapter 5: Configuration Maximum bit rate DTR Options RS-530-V35 cable RS366-Y cable Video 384K When the ISU 512 is configured for Video 384K the following parameters are automatically preset: Service type Automatic answering ISDN call type Dial options Maximum bit rate...

  • Page 69: Leased Slave And Ldm Slvmstr

    Channel rate RS-530-V35 cable RS-366-Y cable Leased Slave and Ldm SlvMstr When the ISU 512 is configured for Leased Slave or Ldm SlvMstr (limited dis- tance modem slavemaster) the following parameters are automatically preset: Service type Automatic answering Maximum bit rate...

  • Page 70: Dialing Options

    Up and Down arrows permit viewing and selection of a stored number. Press Enter to dial the number. A copy of that number is saved as stored number 9 (SN9) for redial purposes. ISU 512 User Manual 61202.086L1-1...

  • Page 71: Store/Review Number

    Enter to save. If a mistake is made, press Cancel to clear the line and allow another attempt. Press Cancel twice in succession to exit without changing the selected stored number. 61202.086L1-1 Chapter 5: Configuration ISU 512 User Manual...

  • Page 72: Configuring The Isu 512 For V.25 Bis In-Band Dialing

    V.25 bis dialing is used primarily by data terminal equipment with synchro- nous interfaces (HDLC/SDLC or BSC/BISYNC) not supporting the AT com- mand set, which is commonly used by asynchronous devices. The ISU 512 supports V.25 bis in-band dialing in accordance with Fascicle VIII.I - V.25 bis (Malaga-Torremolinos 1984, Melbourne 1988).

  • Page 73: Chapter 6. Testing

    5=Software Ver Loopback DTE Causes both DTE ports to loopback toward user equipment. This allows per- formance of a bit error rate test (BERT) between the ISU 512 and end user equipment to verify proper cable connection, etc. Loopback Protocol Allows data to be looped back toward the network after passing through BONDING protocol.

  • Page 74: 2047 Checker

    Chapter 6: Testing 2047 Checker The ISU 512 has the ability to loopback the remote unit and generate/check 2047 BERT pattern through the BONDING protocol. This allows 2047 BERT patterns to be run on multiple ISDN connections (through BONDING). The originating ISU 512 generates the 2047 patterns and checks the incoming pat- tern for errors.

  • Page 75: Near-End Block Errors/Far-End Block Errors (Nebe/Febe)

    NT-1 to the switch. A call does not have to be placed to use the NEBE/FEBE counter. Since this is a function of the U interface, it only applies to the ISU 512 with U inter- face.
  • Page 76 Chapter 6: Testing ISU 512 User Manual 61202.086L1-1...

  • Page 77: Chapter 7. Troubleshooting

    Ensure the ISU 512 is receiving power and is switched On. Turn Off the ISU 512; while holding the 0 key, power up the ISU 512. Con- tinue holding 0 for approximately 30 seconds, until the unit powers up.
  • Page 78 ISDN line. Contact the phone service provider for help. If the ISU 512 continues to read DOWN, there is a physical problem with the ISDN line (probably Layer 1 setup). The problem is one or more of the following: •...

  • Page 79: If The Display Reads Tei1

    IF THE DISPLAY READS TEI1 If the ISU 512 reads TEI1, then the ISU 512 is physically connected to the local telephone service provider but is unable to establish Logical Layer 2. The problem is in one or more of the following places: •...

  • Page 80: If The Display Reads Tei2

    The software setup of the telephone service provider To isolate the problem, use the following procedure: Make sure that the ISU 512 is set up with the correct SPID and LDN by se- lecting CONFIG, Netw. options, Dial Line, Terminal ID, and SPID/ LDN.

  • Page 81: If The Display Reads Spid{1,3,5, Or 7

    IF THE DISPLAY READS SPID{1,3,5, OR 7} This section does not apply to installations outside of North America. If the ISU 512 reads SPID1, then the ISU 512 is physically connected to the lo- cal telephone service provider and has established Logical Layer 2. The ISU 512 is unable to establish layer 3.
  • Page 82 The software setup of the telephone service provider To isolate the problem, perform the following procedure. Ensure the ISU 512 is set up with the correct SPID and LDN by selecting CONFIG, Netw. options, Dial Line, Terminal ID, and SPID/LDN.

  • Page 83: Chapter 8. Specifications Summary

    DTE: 56 kbps to 512 kbps synchronous Rate Adaption • BONDING mode 1 • 2 x Clear Channel, dual port Clear Channel Interoperability • BONDING inverse multiplexers • Switched 56 DSUs • ISDN TAs 61202.086L1-1 Chapter 8 Specifications Summary ISU 512 User Manual...

  • Page 84: D Channel Switch Compatibility

    • AT&T 5ESS • NTI DMS-100 • National ISDN-1 • EuroISDN (only available on the ISU 512 ST) B Channel Aggregation BONDING protocol Mode 1 Display Two-line x 16-character LCD Environmental • Operating temperature: 0 to 50 C (32 to 122 F) •...

  • Page 85: Appendix A. Status Buffer Messages

    Status Buffer Messages STATUS LINE MESSAGES Messages in all caps are generated by the ISDN network. Messages with lower case letters are generated by the ISU 512. Call Connect B1 Bearer channel 1 connected and is currently active. Call Connect B2 Bearer channel 2 connected and is currently active.
  • Page 86 CALL xxxxxxx The ISU is calling phone number xxxxxxx. {1,2,3,4}:Ready The ISU 512 is connected to an AT&T 5ESS switch and is ready to place/re- ceive calls. {1,2,3,4}:PLBBK The ISU has been commanded to perform a loopback in the network direction after letting the incoming data pass through the current protocol.
  • Page 87 BPS mismatch Bonding negotiation found a bit rate mismatch. BUSY The called number is busy. CallID 1 in use ISU 512 tried to place a call using SPID 1 though SPID 1 was already in use. 61202.086L1-1 ISU 512 User Manual...
  • Page 88 Appendix A. Status Buffer Messages CallID 2 in use ISU 512 tried to place a call using SPID 2 though SPID 2 was already in use. Call not ringing User executed an answer command (A) but there was not a call present.
  • Page 89 The DTE equipment is not optioned for the same bit rate as the ISU 512 for V.25 bis dialing. DTR not up ISU 512 tried to place a call in a dialing mode that requires DTR to be in an ac- tive state but it is not. Dump call ISU 512 could not accept an incoming call because it was already involved in a call.
  • Page 90 L3 #{1- 8} not up The call control layer interface for the call number shown (BONDING) is not active. LDN TOO LONG The entered Local Directory Number has too many digits. MANDATORY_IE_LEN Mandatory information element length error. ISU 512 User Manual 61202.086L1-1...
  • Page 91 Appendix A. Status Buffer Messages MANDATORY_IE_MIS Mandatory information element missing. Need 64K call The BONDING protocol requires the ISU 512 to be configured for a 64k data call type. Negotiation fail The BONDING negotiation has failed. NETWORK BUSY The ISDN switch is busy and unable to process a call.
  • Page 92 Call control error. REQ_CHANNEL_NOT_ The channel type requested is currently not available. Remote not ISU Bonding negotiation determined the far-end unit is not another ISU 512. RESP_TO_STAT_ENQ Response to status enquiry. Ring 1/2 An incoming call on either the first or second channel entered the Ring state.
  • Page 93 Received a cause message from the network that is not understood. USER_BUSY The dialed number is busy. WRONG_MESSAGE The ISU 512 received a message that does not match the valid messages de- fined for the switch. 61202.086L1-1 ISU 512 User Manual...
  • Page 94 Appendix A. Status Buffer Messages WRONG_MSG_FOR_ST The ISU 512 received a message that is not appropriate for the state of the call. 530 Set Primary The connector type is set to RS-530. This may cause 2 x Clear Channel mode to fail to come on-line.

  • Page 95: Appendix B. S-Register List

    S0 ..AUTO ANSWER ..Determines how the ISU 512 answers an incoming call. S7 ..CONNECT TIME..Determines how long the ISU 512 waits for an outgoing S26 .
  • Page 96 Appenidix B. S-Register List S34 ..DTE DTR... . . Determines how the ISU 512 responds to changes in DTR. S35 ..DTE CONN ... Determines which is the current operating DTE connector.
  • Page 97 S47 ..RS 366 TIME ..Determines the amount of time the RS-366 port waits for S50 ..LINE MODE..Selects the operating mode of the ISU 512.
  • Page 98 S55 ..DIAL MODE ..Selects dialing interface. S58 ..CALL SCREENING ..Allows the ISU 512 to screen incoming calls. S88 ..RS-530 to V.35 Adapter Cable S89 .
  • Page 99 SS98 . . . SN8 LOC ... . Stored number 8 string SS99 . . . SN9 LOC ... . Stored number 9 string 61202.086L1-1 ISU 512 User Manual...
  • Page 100 Appenidix B. S-Register List ISU 512 User Manual 61202.086L1-1...

  • Page 101: Appendix C. At Commands

    See the section The Maintenance Interface in Chapter 3 for more informa- tion. Commands should be entered without the AT prefix. Command Definition Answer Places the ISU 512 into answer mode Dial Precedes the telephone access number [ATD551212] Hangup Disconnects the current call Identify unit...
  • Page 102 Video 336K Leased Slave (not available on the ISU 512 ST) Leased Master (not available on the ISU 512 ST) Leased Slave Master (not available on the ISU 512 ST) Network Options Dial Network Leased Network (not available on the ISU 512 ST)
  • Page 103 Stored number 9 ISDN Switch Type Options 5ESS DMS-100 National ISDN-1 EuroISDN (only available on the ISU 512 ST) ISU timing slaves to network (NT) IU is U-interface timing master (LT) Reset Unit reset, equivalent to cycling power Factory reset, equivalent to pressing 0 on power up...
  • Page 104 Appendix C. AT Commands ISU 512 User Manual 61202.086L1-1...

  • Page 105: Appendix D Pinouts

    Pinouts for Chain In and Chain Out Ports Chain Out Port Ground Pin 1 Rx Data Pin 3 Tx Data Pin 5 ISU 512 User Manual Pinouts RS-232 DB Style Figure D-1 Figure D-2 Table D-A Ground Chain Rx Data...

  • Page 106: Figure D-3: Eia-232, Rs-366, And Rs-530 Connector

    Pin 5 PIN 13 PIN 25 Pinouts for IFC RJ-45 Connectors IFC RJ-45 Connector Ring PIN 1 FEMALE PIN 14 EIA-232, RS-366, and RS-530 Connector V .35 ISU 512 User Manual Table D-B Figure D-3 Figure D-4 V.35 Connector 61202.086L1-1...
  • Page 107 Digit Bit 2 BNB4 Digit Bit 3 N / A No Connection BNB8 Digit MSB Data Line Occupied BDL0 ISU 512 User Manual Appendix D. Pinouts Table D-C D e s c r i p t i o n s...
  • Page 108 No Connection Ready To Send (return) Data Terminal Ready N / A No Connection Data Set Ready (return) Data Terminal Ready (return) External Transmit Clock Power for RS-530 to V.35 Cable Adapter ISU 512 User Manual Table D-D RS-530 Pinouts 61202.086L1-1...

  • Page 109: Table D-E

    N / A No Connection N / A No Connection N / A No Connection N / A No Connection N / A No Connection N / A No Connection ISU 512 User Manual Appendix D. Pinouts Table D-E V.35 Pinouts...

  • Page 110: Table D-F

    N / A No Connection N / A No Connection N / A No Connection N / A No Connection N / A No Connection N / A No Connection N / A No Connection ISU 512 User Manual Table D-F 61202.086L1-1...

  • Page 111: Figure D-5 Rs-366 Y Cable

    Figure D-6 displays the RS-530 to V.35 adapter cable, part number 1200072L1. DB25 Male RS-530 61202.086L1-1 Appendix D. Pinouts DB25 Male RS-366 Port RS-366 Y Cable RS-530 to V.35 Adapter Cable ISU 512 User Manual Figure D-5 V.35 Connector Figure D-6...
  • Page 112 Appendix D. Pinouts ISU 512 User Manual 61202.086L1-1...

  • Page 113: Acronyms

    FAX ... Facsimile FEBE... Far End Block Errors FX... Foreign Exchange ID... Identification I/O ... Input/Output IOC... ISDN Ordering Codes ISDN... Integrated Services Digital Network ISU ... ISDN Service Unit kbps ... kilobits per second 61202.086L1-1 ISU 512 User Manual...
  • Page 114 MLHG ...Multiline Hunt Group NEBE ...Near-End Block Errors NI-1 ...National ISDN-1 NT ...Network Termination PC...Personal Computer POTS ...Plain Old Telephone Service SPID ...Service Profile Identifier TA ...Terminal Adapter TE ...Terminal Equipment TEI ...Terminal Endpoint Identifier WAN...Wide Area Network ISU 512 User Manual 61202.086L1-1...

  • Page 115: Glossary

    Industry standard B channel aggregation protocol. Developed by the Bandwidth on Demand Interoperability Group. bridging The technique whereby additional stations may be served from a two-point facility by extending the facility from a bridge at one of the facility’s terminating points. 61202.086L1-1 ISU 512 User Manual Glossary...
  • Page 116 The ISDN channel that carries signaling information to control the call setup, tear- down, or invocation of supplementary services. The D-Channel may also be used to provide Packet Mode Data Service. Data communications equipment. The portion of a data terminal that provides the interface to the network. ISU 512 User Manual 61202.086L1-1...
  • Page 117 (request for service, dialing, disconnect, etc.) in the U.S. is in- band signaling. Most of that signaling is MF (multi-frequency) dialing. The more modern form of signaling is out-of-band. information element The name for the data fields within an ISDN Layer 3 message. 61202.086L1-1 ISU 512 User Manual Glossary...
  • Page 118 The Layer 3 information that is passed between the CPE and SPCS for signaling. multiplexing The combining of multiple data channels onto a single transmission medium. Any process through which a circuit normally dedicated to a single user can be shared ISU 512 User Manual 61202.086L1-1...
  • Page 119 Synchronous data link control. A data communications line protocol associated with the IBM system network architecture. SDLC is a bit-oriented protocol (not a character-oriented protocol) that includes multiple block error checking and full duplex line operation. 61202.086L1-1 ISU 512 User Manual Glossary...
  • Page 120 I.411 Recommendation. This interface provides Basic Rate Access with an operating frequency of 160 kbps and an information rate of 144 kbps. Under U.S. regulations, this also marks the line of demarcation between customer-owned equipment and the public network. ISU 512 User Manual 61202.086L1-1...
  • Page 121 (a NAK - negative acknowledgment) to retransmit that block once again. If the block checks out, the computer sends ACK (an ac- knowledgment). In this way, relatively error-free transmission can be accom- plished. 61202.086L1-1 ISU 512 User Manual Glossary...
  • Page 122 Glossary ISU 512 User Manual 61202.086L1-1...

  • Page 123: Index

    CD options menu path for setting 12, 13, 14 chain in port pinout chain out port pinout 10, 11, 40 channel rate CIC/DIC clear to send clock mode master timing 21, 25 configuration 21, 26 menu quick setup ISU 512 Index...
  • Page 124 ISU 512 dialing options answer call dial number dial stored number hang up line menu path for setting redial last number store/review number...
  • Page 125 LCD display LCD window setting 61202.086L1-1 leased application with channel banks leased digital service configuring the ISU 512 for leased line menu 39, 52 leased master leased operation leased slave leased slave and Ldm SlvMstr LED description...
  • Page 126 RS-366 dialing port interface pinouts 43, 95 RS-366 Y cable adapter RS-530 interface RS-530 pinouts RS-530 to V.35 adapter cable pinouts RS-530 to V.35 cable security self test self test failure ISU 512 User Manual 61202.086L1-1...
  • Page 127 2047 checker loopback DTE loopback protocol menu path to select NEBE/FEBE software version test remote transmit data transparent 2 x clear channel protocol troubleshooting two channel calls non-bonded TXADD01 TXDEQ TXFA TXINIT ISU 512 User Manual Index...
  • Page 128 Index 20, 21, 23 up arrow updating ISU 512 software local method remote method using ISDN Basic Rate switched service V.25 DCE/DTE control signals V.25 bis commands to control automatic call- ing and anwering in-band dialing V.35 connector pinouts V-35...

  • Page 129: Product Support Information

    Applications Engineering Sales Post-Sale Support Please contact your local distributor first. If your local distributor cannot help, please contact ADTRAN Technical Support and have the unit serial number available. Technical Support Repair and Return If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordinate with the Return Material Authorization (RMA) de- partment to issue an RMA number.

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