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E1 CSU/DSU
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ESU LT
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Features |
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Single-port E1 DSU/CSU
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Metallic E1 network interface (DB-15
120 ohm)
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Includes DB-15 120 ohm to BNC 75 ohm
adapter
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Single DB-25 DTE interface supporting
V.35, V.36,
X.21/V.11 or EIA-530
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Nx56 or Nx64 operations for data
rates to 2.048 Mbps
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G.704 framing support
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HDB3 line coding
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Unframed mode option
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PC-based configuration support via
T-Watch PRO software
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Front panel LCD for configuration and
monitoring
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Local and remote loopback capability
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Auto ranging power supply 90 VAC to
240 VAC, 50-60 Hz IEC connector
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Customer provides power cord with
appropriate plug type
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V.35 adapter cable sold separately or
included with product bundle (male to female cable only)
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The ESU Series is currently
approved for use in Austria, Denmark, Finland, France,
Germany, Greece, Ireland, Italy, Luxembourg, Netherlands,
Portugal, Spain, United Kingdom, United States, Sweden, and
Mexico. Call Pre-Sales Applications Engineering at
888-785-7393 for up-to-date approval information.
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Description |
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The ADTRAN ESU LT is a low-cost, full-featured E1/FE1 data
service unit/channel service unit (DSU/CSU).
The ESU LT provides an
interface between E1 or Fractional E1 service and the end
user’s data terminal equipment (DTE) for applications such as
LAN-to-LAN bridging, Frame Relay circuit termination, and
video-conferencing.
The ESU LT provides access to traditional dedicated
point-to-point E1 services as well as network termination for
Frame Relay. Housed in a compact, durable plastic housing, the
ESU LT supports synchronous data rates from 56 kbps to 2.048
Mbps at Nx56 or Nx64 kbps. A single DB-25 DTE physical
interface, supporting V.35, V.36, X.21/V.11 or EIA-530,
provides a connection to the end user’s DTE equipment. Adapter
cables are available.
For configuration and testing, the ESU LT provides the
capability to control a remote ESU LT using 8 kbps of the data
traffic. The in-band control channel is used on an as-needed
basis and is automatically controlled by the ESU LT.
The ESU LT responds to standard local and remote loopback
commands from the telephone company central office. In
addi-tion, the user has several built-in test capabilities
including V.54 remote loopback and 511 BERT test patterns.
Complete configuration and performance data is available from
the front panel keypad and two-line by 16-character LCD
display. For additional configuration and monitoring options,
the ESU LT supports VT100 terminal configuration and control
mode which is available through the control port. For direct
serial connections or for remote devices, optional
Windows-based PC management is available through the
comprehensive, easy-to- use T-Watch PRO software package.
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Email
