Digital Link DL600E, User Manual

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1-2 DL600E E1 Data Multiplexer UserÕs Guide
Introducing the DL600E Unit
The
DL600E
unit is an intelligent
E1
multiplexer and Data Service Unit
(DSU). It is Data Terminal Equipment (DTE)
that accesses public and
private
E1
and fractional
E1
and Frame Relay services. The
DL600E
unit provides either two or four data ports for multiplexing (DTE)
devices and an optional
E1
Drop-and-Insert port. It converts
V.35
and
X.21
compatible
DTE
data for
E1/FE1
network transport. It is ideally
suited for point-to-point and multipoint
E1
and
FE1
connections of
multiple data internetworking devices.
The front panel of the
DL600E
unit provides comprehensive
LED
status
for each port and a
16-
character ßuorescent display with access to
system conÞguration, performance statistics, and tests. It provides a full
DSU
interface with Telnet and Simple Network Management Protocol
(SNMP)
network management capability.
The
DL600E
unit has an extensive set of maintenance features to
simplify network and equipment troubleshooting, including Þxed and
programmable test patterns (transmitted on the full
E1
payload or the
fraction of the payload associated with a user selected
DTE
port),
network loopbacks, and
DTE
loopbacks for each
DTE
port.