512 kbps ISDN Inverse Multiplexer

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					                                   ISU 512
                                   512 kbps ISDN Inverse Multiplexer

Product Features                   The ADTRAN ISU™ 512 is a standalone ISDN                                                                                                                             bandwidth of up to 512 kbps. Since ISDN is a
s   Basic Rate inverse multi-      Service Unit that connects data terminal                                                                                                                             switched digital service, this bandwidth, or a
    plexer supports a single       equipment to the ISDN network. The ISU                                                                                                                               portion of the maximum bandwidth, can be
    high-speed data applica-       512 is a basic rate inverse multiplexer that                                                                                                                         established and utilized on an as-needed
    tion rate
                                   provides cost-effective high speed data                                                                                                                              basis. Therefore, the ISU 512 is well suited
s   Low cost alternative to        transmission for a single application at rates                                                                                                                       for applications where a high bandwidth
    expensive inverse multi-       up to 512 kbps. The ISU 512 is specifically                                                                                                                          connection is needed to support bursty or
                                   designed as a low cost solution for applica-                                                                                                                         infrequent traffic, like videoconferencing,
s   Applications include           tions such as videoconferencing, T1/E1                                                                                                                               medical image transfer, or disaster recovery.
    LAN/WAN connectivity,          backup, LAN/WAN connectivity, high-speed                                                                                                                                The ISU 512 may utilize either the RS-530
    high-speed file transfer,      file transfer, and audio broadcasting.                                                                                                                               or V.35 DTE interface and supports synchro-
    and T1/E1 backup
                                       The ISU 512 uses Basic Rate ISDN (BRI),                                                                                                                          nous data rates from 56 kbps to 512 kbps.
s   Supports up to four ISDN       a low cost public digital network service.                                                                                                                           At rates over 64 kbps, the BONDING Mode 1
    Basic Rate lines
                                   Data terminal equipment is connected                                                                                                                                 inverse multiplexing protocol synchronizes
s   Operates at synchronous        directly to the ISDN network using the ISU                                                                                                                           data using from one to eight 64 kbps B chan-
    data rates of up to 512 kbps
                                   512 and up to four Basic Rate ISDN lines.                                                                                                                            nels. By supporting BONDING, the ISU 512
s   Supports industry stan-        Two 64 kbps B channels are associated with                                                                                                                           interoperates with other BONDING-compat-
    dard BONDING
                                   each BRI line. By terminating up to four BRI                                                                                                                         ible inverse multiplexers and ISDN terminal
s   Dialing options include        circuits, the ISU 512 can create aggregate                                                                                                                           adapters.
    front panel, stored
    number, V.25 bis, DTR                                                                                                                                                                                                      (Continued on back.)
    dialing, and an RS-366
    dial interface                         Application Examples

s   Transmits data over either                                                                                                              ISU 512
                                                                3 BRI Interfaces
    the V.35 or RS-530 DTE                                                                                                                                                                                          384 kbps
                                                 ISDN Switch
                                                                                                                                                                                                  ISU 512

                                                                                                                                                         1                                        DEF
                                                                                                                                                     GHI                                          3

                                                                                            RS CS                                                    4                       JKL
                                                                                                       TD    RD                                                              5               MNO
                                                                                                                    CD       TR                  PQRS
                                                                                                                                       SR                                                     6
                                                                                                                                                     7               TUV

s   Flash memory allows
    for field upgrades of                  Videoconferencing
    new features when                      s Cost-effective video at 384 or 512 kbps
    appropriate                            s Interoperates with SW56 DSUs & dual port ISDN TAs at 112/128 kbps

s   Supports remote configu-
                                                                                                                                            ISU 512
    ration over ISDN line or                                   Up to 4 BRI Interfaces
    externally                                   ISDN Switch                            RS CS
                                                                                                 TD    RD    CD    TR



                                                                                                                                                                                            ISU 512


s   Compatible with AT&T
    5ESS®, NEC, VN3, ITR6,                                      E1/T1                                                                                                V.35
    TPN1962, NTT, KDD,                                                                                                                                                                                                            LAN
    EURO-ISDN, TDX10 and                                                                                                                                                                                      Bridge/Router
    TDX1B switches
                                           High-Speed File Transfers
s   Five-year warranty                     s Image transfer
                                           s Data backup

                                                                                                                                            ISU 512
                                                               Up to 4 BRI Interfaces
                                                                                                                                                                                                                    512 kbps
                                                 ISDN Switch
                                                                                                                                                                                             ISU 512
                                                                                                                                                     1                                       DEF
                                                                                                                                                 GHI                                         3
                                                                                         RS CS                                                   4                   JKL
                                                                                                  TD    RD                                                           5                   MNO
                                                                                                              CD        TR                   PQRS
                                                                                                                                  SR                                                      6
                                                                                                                                                 7               TUV


                                            Disaster Recovery – T1/E1 Backup
                                            s ESU/TSU with Dial Backup Module (DBU)
                                            s Up to 512 kbps of backup bandwidth
                                   ISU 512
                                   512 kbps ISDN Inverse Multiplexer
                                   The ISU 512 can be configured and maintained, locally or remotely, using a VT100 terminal interface.
                                   For remote configuration, the unit can be accessed over the ISDN line or externally through the
                                   CHAIN IN port on the back panel of the unit.
                                      Dialing from the unit is accomplished by using the front panel, stored numbers, DTR assertion, or
                                   V.25bis in-band dialing. The RS-366 parallel dial interface is available for applications such as video-
                                       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 utilizing two Switched 56
                                   DSUs or a dual port ISDN terminal adapter. For this application, 56/64 kbps is transmitted over the
                                   V.35 interface and the RS-530 interface. An RS-530 to V.35 adapter is available to provide the necessary
                                   V.35 interface for the second port. A special RS-366 Y cable provides the two RS-366 interfaces for this
                                   application. For convenience in communicating with multiple video sites, the ISU 512 can be config-
                                   ured to transparently switch between the dual port mode at 112/128 kbps and the single port mode of
                                   384 kbps without user intervention and reconfiguration of the unit.
                                      The front panel of the ISU 512 consists of a two-line by 16 character LCD display, seven LEDs, and a
                                   16-button keypad. This allows for configuring, dialing, testing, and monitoring of the unit without a
                                   data terminal or test equipment.

                                   Product Specifications
                                   Network Interface                                                                       Certifications
                                      s Four RJ-45s for ISDN S/T Interface                                                   s FCC Part 15 Class A, FCC Part 68, CISPR 22 Class A,
                                                                                                                               EN 55022 Class B, EN50082-1 (IEC 801-2,3,4), UL, CUL,
                                   DTE Interface                                                                               CSA, CS03, EN60950, I-CTR 3, CE MARK
                                      s RS-530 or V.35 (both connectors present)
                                         (RS-530 to V.35 adapter cable available)                                          Environmental
                                                                                                                             s Operating Temperature: 0° to 50°C, 32° to 122°F
                                   Dialing Selections                                                                        s Storage Temperature: –20° to 70°C, –4° to 158°F
                                      s Manual or automatic stored number dialing
                                                                                                                             s Relative Humidity: up to 95%, non-condensing
                                      s In-Band DTE Dialing: V.25 bis
                                      s DTR assertion                                                                      Physical
                                                                                                                             s Dimensions: 2.25" H, 8.75" W, 11" D
                                   Dial Interface                                                                            s Weight: 4 lbs
                                      s RS-366
                                                                                                                             s Power: 90-240 vAC, 50-60 Hz,
                                   Data Rates (DTE)                                                                            8 watts maximum dissipation
                                      s 56 kbps to 512 kbps synchronous
                                                                                                                           Product Includes
                                   Data Rates (Network)                                                                      s ISU 512, 4-7' RJ45 telephone cables & User Manual
                                      s Up to four BRI’s
                                         (Maximum of eight 56/64 kbps B channels)
                                                                                                                           Ordering Information
                                   Protocols                                                                               Equipment                                       Part #
                                      s Clear Channel, BONDING Mode 1
                                                                                                                           ISU 512 S/T                                 1202086L2
                                   Interoperability                                                                        R S-530 to V.35 cable*                      1200072L1
                                      s BONDING-compatible inverse multiplexers,                                           RS-366 Y cable*                             1200120L1
                                         Switched 56 DSUs, ISDN TAs, ISUs
                                                                                                                           ISU 512 S/T with RS-530
                                   Switch Compatibility                                                                    and RS-366 Y cables*                        4202086L2
                                      s AT&T 5ESS, NEC, VN3, ITR6, TPN1962, Euro-ISDN,
                                         KDD, NTT, TDX10, TDX1B                                                             ISDN Ordering Codes are available to aid in ordering
                                                                                                                            ISDN lines for this product
                                   Diagnostic and Testing
                 ADTRAN is a
                                      s Local and remote loopbacks, V.54 loopback,
                                                                                                                            *For 112/128 kbps dual port videoconferencing applica-
ISO 9001 registered company.             2047 pattern, Remote configuration                                                 tions these cables may be necessary
                                      s Two-line x 16-character LCD

                 ADTRAN is a
 TL 9000 registered company.
                               Specifications subject to change without notice. 5ESS is a registered trademark of AT&T.
                                                                                                                            Toll Free: 888-785-7393
                               DMS-100 is a trademark of Northern Telecom. ISU is a trademark of ADTRAN, Inc.
                               Windows is a registered trademark of Microsoft Corporation. All registered trademarks
                               and trademarks mentioned in this publication are the property of their respective owners.
                                                                                                                            Int'l: 1-909-244-6477

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