The Synchronous Asynchronous Multiplexor (SAM)
family of concentrators has been a reliable mainstay for
many customers of the BNS-2000 Family of products.
However, as you plan to transition your backbone
network towards one that is IP based give strong
consideration to the DT-2020i Inter-Networking
Mediation Interface For SAM Concentrators.
The DT-2020i transforms the embedded base of SAM
concentrators into versatile IP based terminal servers. It
maintains all the features and functionality of the SAM
without additional cost or the need for BNS. It
connects terminals, modems, and microcomputers over
serial lines to local area (IP) networks (LANs) or wide
area (IP) networks (WANs).
What is a DT-2020i?
The DT-2020i is a mediation product, which allows
for the re-use of a SAM endpoint interface
concentrator (up to 128 ports) on an IP
infrastructure without any BNS equipment.
The DT-2020i supports all of the SAM port options, and
is compatible with the mediation function of the DT-4000.
The DT-2020i provides a TELNET over TCP path, or a
transparent TCP path, for each user port on the SAM
concentrator. These ports may then connect to an
arbitrary IP host without an intermediary interface. This
is normally the case for Asynchronous protocols. It is
also true of Synchronous Protocols where the peer host
has implemented the framing interface per the
appropriate RFCs. For hosts which are not directly
compatible with these specifications, the circuit will need
to traverse a mediation gateway such as the DT-6061.
The integrated DT-2020i is a direct replacement for the
existing SAM 64/128/504-trunk module. As such, no
external device is required.The DT-2020i, through its
I/O board, interfaces directly to the IP network.