ADTRAN ISU 512 User Manual

Also see for ISU 512: User manual Specifications

Contents

ADTRAN ISU 512 User Manual Manual pdf 62 page image

Chapter 5: Configuration46 ISU 512 User Manual 61202.086L1-1BONDING SETUPThe ISU 512 communicates with many different types of telecommunicationequipment including other ISU 512s, ISDN terminal adapters, Switched 56DSUs, and BONDING mode 1-compatible inverse multiplexers. The ISU 512supports the BONDING mode 1 (Bandwidth on Demand InteroperabilityGroup) adaptation protocol.See Recommended Operating Protocols in this chapter for more information onrecommended modes of operation.The BONDING mode 1 protocol allows the ISU 512 to communicate at bit ratesin 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. The protocol allowsuse of synchronous bit rates. When the ISU 512 uses the BONDING mode 1protocol, up to eight separate ISDN phone calls are required to seize control ofall ISDN bearer channels. The protocol corrects any delays existing betweenthe bearer channels and presents a single high-speed data channel to the DTE.For successful high-speed operation, both the near and far-end DCE need tobe configured to use the BONDING mode 1 protocol. The BONDING mode 1protocol negotiation phase has numerous timers to allow transmission delaysdue to satellite hops, international calls, etc.3=CONFIG3=BONDING setup1=TXINIT2=TXFA3=TXADD014=TXDEQ5=TANULL6=TCID7=CALL STAGGERTXINITThis option specifies the length of time the originating endpoint attempts todetect the BONDING negotiation pattern from the answering endpoint beforedeciding the BONDING call has failed. In general, this timer value should beleft at the factory default setting of 10 seconds. Select from values of 1, 2, 5, 10(default), 20, 50, 100, and 200 seconds.