ADTRAN 61200051L1, 1200051L2 SAP Fallback, Only available on part numbers 1200051L5 and 1200051L6

Chapter 11. Specifications

Data Rates (DTE)

When using single DTE interface:

•300 bps to 115.2 kbps asynchronous

•2400 bps to 128 kbps synchronous

When using dual DTE interfaces:

•300 bps to 57.6 kbps asynchronous on each interface

•2400 bps to 64 kbps synchronous on each interface

B Channel Aggregation

•BONDING Protocol Mode 1. Used for speeds 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

•FALLBACK

•DSU 57.6 Async

•BONDING mode 1

•PPP Async-Sync

•Multilink PPP

Interoperability

•BONDING Mode 1-compatible Inverse Multiplexers (AS- CEND, PROMPTUS, Teleos, etc.)

•Switched-56 DSUs (2-wire and 4-wire), ISU 128s, ISDN TAs

•PPP/Multilink compatible devices

Switch Compatibility

•AT&T 5ESS, NTI DMS-100, National ISDN-1, NEC, Euro IS- DN*, TDX10*, TDX1B*, KDD*, NTT*, and VN4*.

*Only available on part numbers 1200051L5 and 1200051L6.

86 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D