Datatek DT-4180 - Manual (Page 11)

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The 9480 has one instance of the E2AHOB mediation application.
Use of the
E2AHOB application is exclusive to any other vertical service application (e.g.
X25PAD) or feature package on a particular port.
Each of the serial ports on these devices may be configured, on a per port basis, to be
connected to an E2A head of bridge. The head of bridge may be an E2A port on an OS
such as NMA, an intermediary device such as a TNC, or merely a modem in an existing
bridge chain. The
E2AHOB mediation application allows a switched virtual bridge
network to be created using standard E2A ports on the same or other devices. A virtual
distribution bridge of up to 31:1 may be created in this manner. The
E2AHOB provides a
display of the dynamic address map, and a full decoding protocol snooper. The
E2AHOB has provision for display of the dynamic E2A address map, and an E2A
decoding protocol snooper.
2.10 eSAM Extension Board Support
The devices may be used as an extension board to a eSAM. The eSAM is a network
extensible variant of the SAM series for Datakit and BNS networks. This feature allows
the device to be used as a single port, four port, sixteen port, or 32 port board to extend
a eSAM. The device does not need to be co-located with the eSAM as it uses the IP
infrastructure for communications. See the eSAM product addendum for more
information.