• SYNCHRONYŽ ST-1000 and ST-20

    Technical Specifications

    Express Switching Architecture:

    • Multiple Quality of Service support
    • Dynamic bandwidth allocation
    • Circuit and frame switching
    • Prioritized ATM access

    Wide Area Support:

    • E-1, E-3, T-1, FE-1, FT-1, JT2, HSSI, OC-1, OC-3, STM-1
    • LAPB, HDLC, PPP
    • X.25 access, DDN, frame relay access/switching, SMDS and ATM
    • ISDN leased line backup, on demand or overflow
    • X.50
    • Data compression (frame relay, HDLC, PPP)

    Full Connectivity and Control:

    • Full routing and bridging capability
    • Ethernet, Token Ring and FDDI support
    • LINK/2+ protocol interpretation for SYNCHRONY-ST channel termination and 'virtual' LINK/2+ node networking

    Voice Handling:

    • Intelligent voice switching
    • PABX signaling (CAS, Q.Sig, DPNSS and Q.931)
    • Bandwidth contention
    • Voice Compression (CELP, ATC, and ADPCM)
    • Voice over Frame Relay (ECELP and Q.729)

    Comprehensive Multi-Protocol Routing (ST-1000/ER-5 only):

    • IP, Xerox XNS, Novell IPX, DECnet IV, AppleTalk II, OSI CLNP
    • OSPF, EGP, RTMP/ZIP, IP RIP, IPX RIP, XNS RIP, DECnet IV (level 1&2), ES-IS/IS-IS
    • Remote IPX RIP and Remote IPX SAP reduce network overhead on low speed serial links by eliminating repetitive broadcasts
    • Protocol priority queuing

    Standards-based Intelligent Bridging:

    • IEEE: Transparent (802.1d), Source Routing, Source Routing Transparent (SRT)
    • Translation Bridging

    Special IBM Features:

    • LLC2 Local Acknowledgement
    • NetBIOS caching
    • Data Link Switching (DLSw)
    • LAN Network Manager proxy support

    Legacy Handling Options:

    • FRF.3, X.25 (switching), X.3/X.28/X.29, SDLC/QLLC2, BSC 3270, Burroughs Poll/Select

    Comprehensive Network Security:

    • Enhanced access control filtering
    • PX SAP filtering

    Standards -Compliant Management:

    • SNMP support
    • Optional HP OpenView-based Element Management System
    • TELNET User and Server access
    • Remote download of system software and configuration parameters

    Capacity:

    • 15 universal slots per ST-1000 shelf
    • Up to 60 slots per ST-1000 node
    • Single and high density interfaces
    • 100,000 frames per second
    • 1.9 Gbps VBR bus capacity
    • 160 Mbps CBR bus capacity

    Power:

    • AC Input: auto-selectable for 90-120 or 200-265
    • DC Input: 40 to 60 VDC
    • Frequency: 47-63 Hz

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