User`s guide

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.