Black Box 5000 manual 250

Multiserver 5000

DSR Control

When configuring sync channels, note that the Forced On option of the DSR Control Menu forces DSR on (high) all the time rather than following the local DTR.

COMPATIBILITY between Phase 2.5 and Phase 3.0 (Mixed Network) In a mixed Phase network, the Phase 2.5 feature set will rule (least feature set). For instance, voice/fax switching and the new sync protocols (RTS/CTS and Sync-Pad) will not be supported in the Phase 2.5 section of the network. In a mixed network, Phase 3.0 units should not have feeder muxes attached. The Phase 2.5 software does not recognize feeder muxes on Phase 3.0 Marathon units. To resolve this, either upgrade the Phase 2.5 units to Phase 3.0 or use Marathon 1K units instead of feeder muxes on the Phase 3.0 Marathon units. NETMan does not support Phase 2.5 Marathon units or feeder muxes attached to a Phase 2.5 Marathon. NETMan cannot access the network via a Phase 2.5 Marathon.

PHASE 3.0 FEATURES

Marathon 10K

This is a new member of the Marathon product family. The Marathon 10K is MICOM’s switching hub product, capable of supporting networks of up to 254 nodes. With the Marathon 10K, users can install a network with hundreds of data and voice channels.

Dual Link Load Balancing

In a point-to-point application, Marathon 5K units can be config- ured with dual links. Load Balancing allows data to be assigned to a specific link on a per packet basis dependent on the load of each link. In the event of a single link failure, all traffic is auto- matically rerouted over the other link.

Multiple Interconnect Links

Marathon Phase 3.0 software allows a network of up to 254 nodes using multiple interconnect links on the Marathon 5K. This new feature means Marathon now offers, String and distributed star network topologies Point-to-point dual links (with load balancing) Three Interconnect Links Marathon 1K feeder capability

Voice/Fax Switching

Voice/fax switching allows a caller to access another telephone or fax machine by dialing a preconfigured extension number. Con- nections can be made within a local Marathon unit or across the network to any compatible voice/fax channel. This option re- quires a Phase 3.0 FEATUREPAK in the Marathon unit, and the new switching voice PROMs and PAL in the voice/fax module. Multiport Bridging

The Remote LAN Bridge (RLB) for the Marathon supports multi- port bridging by allowing more than two LANs to be interconnect- ed over a Marathon wide area network. A new network cluster feature allows up to twelve RLBs to form a virtual LAN network. Multiple clusters may be interconnected over an Ethernet back- bone. However, an RLB may belong to only one defined cluster. This feature permits the user to configure small and large LANs which may be segmented by protocol type for increased perfor- mance security and route optimization. This feature is scheduled for release in June 1993.

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