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ISU 128
128 kbps ISDN Service Unit
USER MANUAL
Part Numbers
1202029L2 115 VAC
1202029L3 115 VAC with V.34 Modem Option
61202.029L2-1D
January 1998
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Trademarks: DMS-100 is a trademark of Northern Telecom. ISU is trademark of ADTRAN, Incorporated. Macintosh is a registered trademark of Apple Computer, Incorporated. Stac is a registered trademark and LZS is a trademark of Stac Electronics. Windows is a registered trademark of Microsoft Corporation. 5ESS is a registered trademark of AT&T. ® Windows 95 is a registered trademark of Microsoft Corporation. ® MNP is a registered trademark of Microcom, Incorporated. 901 Explorer Boulevard P.O
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FCC regulations require that the following information be provided to the custom- er in this manual. 1. If your telephone equipment ( ISU 128) causes harm to the telephone network, the telephone company may discontinue your service temporarily. If possible, they will notify you in advance. But if advance notice isn’t practical, you will be notified as soon as possible. You will be advised of your right to file a complaint with the FCC. 2. Your telephone company may make changes in
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FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT FCC ID: HDC1202029TL This equipment has been tested and found to comply with the limits for a Class B dig- ital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,
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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," NMB-003 edictee par l
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Table of Contents Chapter 1. Understanding ISDN and the ISU 128 ..................................................... 1 ISDN Overview .................................................................................................................. 1 The ADTRAN ISU 128....................................................................................................... 1 ISU 128 Interoperability .....................................................................................
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Table of Contents Near-End Block Errors/Far-End Block Errors (NEBE/FEBE) .............................. 22 Software Version.......................................................................................................... 22 Chapter 6. Configuration ................................................................................................. 23 Dial Line Operation............................................................................................................ 23 Swi
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Table of Contents Leased Line Service............................................................................................................ 40 Clock Mode: Slave/Master ....................................................................................... 40 Channel rate ................................................................................................................. 41 DTE OPTIONS...................................................................................
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Table of Contents Dial PPP* ............................................................................................................... 62 V34 115.2 async* ................................................................................................... 63 Dial 57.6 asyn* ...................................................................................................... 63 Dial 115.2 asyn* .....................................................................................
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Table of Contents Environmental ............................................................................................... 85 Physical........................................................................................................... 85 Power .............................................................................................................. 85 Appendix A. AT Commands........................................................................................... 87 Append
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Table of Contents vi ISU-128 User Manual 61202.029L2-1
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List of Figures Figure 1-1: ISU 128 Rear Panel ................................................................................ 2 Figure 1-2: ISU 128 Front Panel............................................................................... 3 Figure 1-3: ISU 128 Interoperability........................................................................ 5 Figure 4-1: VT 100 Status Screen ............................................................................. 17 Figure 4-2: VT 100 Configur
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List of Figures Figure 10-1: Remote Configuration Menu Path ...................................................... 72 Figure 10-2: Remote Configuration Screen.............................................................. 72 Figure 10-3: Remote Unit Configuration Screen ..................................................... 73 Figure 10-4: Test Menu Path ...................................................................................... 74 Figure 10-5: Loopback Remote 1B...................
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List of Tables Table 1-A: DTE Indicators ....................................................................................... 3 Table 1-B: Recommended Operating Modes ....................................................... 7 Table 3-A: Maximum DTE Interface Cable Lengths............................................ 12 Table 7-A: Rate Adaption Protocols....................................................................... 54 Table E-A: EIA-232 Interface ...................................
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List of Tables xii ISU 128 User Manual 61202.029L2-1
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Chapter 1 Understanding ISDN and the ISU 128 ISDN OVERVIEW The Integrated Services Digital Network (ISDN) is a public or private switched digital network. ISDN is an international standard for digital communica- tions, allowing a full range of enhanced services supporting voice, data, and image applications through standard interfaces over a single telephone wire. ISDN provides a means of integrating these services and modernizing com- munication networks for information move
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Chapter 1. Understanding ISDN and the ISU 128 over ISDN. The ISU 128 may be viewed as an ISDN dial modem that allows cost-effective high-speed data transmission at rates up to 128 kbps. The ISU 128 has one RJ-45 jack available on the rear panel for network connec- tion (see Figure 1-1). The RJ-45 jack labelled ISDN IFC is for ISDN Basic Rate. ISDN Basic Rate service divides a standard telephone line into three digital channels capable of simultaneous voice and data transmis
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Chapter 1. Understanding ISDN and the ISU 128 • With DTR asserted, some bridges/routers raise DTR when bandwidth on their dedicated line is exceeded. In high-traffic times, this allows the ISU 128 to dial out over the ISDN for an extra 128 kbps of bandwidth-on-de- mand. The ISU 128 front panel accommodates a 2-line, 16 character LCD display. Seven LED indicators monitor data flow and display the status of key DTE in- terface leads as described in Table 1-A. A front panel keypa
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Chapter 1. Understanding ISDN and the ISU 128 ISU 128 INTEROPERABILITY Telephone networks are evolving from analog technologies to digital technol- ogies such as ISDN. This transition is time-consuming and costly for the tele- phone companies. Upgrading all locations and facilities is a lengthy process. The ISU 128 bridges this transition by supporting communications with exist- ing and future network services and equipment. The ISU 128 supports com- munications with Switched 56 service
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Chapter 1. Understanding ISDN and the ISU 128 61202.029L2-1 ISU 128 User Manual 5 4-Wire Switched 56 DSU ISDN U-Interface NT1 TA DTE ISU 123 ENTER ISDN U-Interface ISDN or SW56 456 789 NETWORK RS CS TD RD LD TR SR CANCEL #0 * ISU 128 BONDING Compatible DTE Inverse MUX Video Codec DSU ENTER 123 2-Wire 4-Wire DSU ENTER 123 456 456 789 RS CS TD RD LD TR SR 789 RS CS TD RD LD TR SR CANCEL #0 CANCEL #0 * * SW56 DSU SW56 DSU DTE DTE Figure 1-3 ISU 128 Interoperab
