Adtran ESP ETHERNET CARD Specification Guide

The ADTRAN

®

TSU ESP is a full-featured T1/FT1 Data Service/Channel

Service Unit (DSU/CSU) with an integral SNMP Agent and optional, modular
Dial Backup (DBU) capabilities. It provides an interface between T1 or
Fractional T1 service and the customer’s Data Terminal Equipment (DTE).
The TSU ESP provides access to traditional dedicated point-to-point T1
circuits as well as Frame Relay services.

The TSU ESP supports synchronous data rates from 56 kbps to 1.536 Mbps

at Nx56 or Nx64 kbps. A single V.35 physical interface provides a connection
to the end user’s DTE.

Embedded SNMP and Telnet are available through the integral SLIP or 

an optional 10BaseT Ethernet port when configured with the plug-in  ESP
Ethernet Card. Through the Management Information Base (MIB)-II standard
and an ADTRAN supplied enterprise MIB, the TSU ESP can be configured and
monitored using standard SNMP network management programs such as HP
OpenView

®

, Netview

®

and SunNet

®

Manager. 

The Dial Backup capability of the TSU ESP allows for automatic switched

backup in the event of a dedicated T1 line failure. The Dial Backup is accom-
plished through a family of plug-in ESP DBU cards. Several versions of  ESP
DBU cards are available including 4-wire Switched 56, 2B+D ISDN, and
External DCE. When a failure condition occurs on the T1/FT1, the DBU card
utilizes the switched network (ISDN, 4-wire Switched 56) or DTR dialing
(External DCE) to initiate a call to the remote end. The user can choose
whether the unit automatically or manually reverts to the dedicated circuit
when it is restored. Optional Weekend and Time of Day Dial Backup lockout
options are provided in the TSU ESP DBU option menu.

The TSU ESP responds to standard loopback commands from the 

telephone company central office. In addition, the user has several built-in
test capabilities. These include V.54 remote loopback and 511 BERT test 
patterns. Complete unit control and configuration are available through 
a 16-key pad and a two-line, 16 character LCD display. A VT 100 terminal 
configuration and control mode is also available through the control port.
Optional Windows

®

-based PC Management is available through the 

T-Watch PRO

™

software package. Flash download capability is implemented

for installation of new features and future enhancements.

■

Single V.35 DTE interface

■

Nx56 or Nx64 operation

■

Embedded SNMP and Telnet

■

Control port provides SLIP
access to SNMP or VT 100 
terminal configuration

■

Two ESP Option slots

■

10BaseT Ethernet port available
with ESP Ethernet Card 

■

Optional ESP DBU cards
include 4-wire SW 56, Single
BRI and External DCE

■

Automatic or manual dial 
backup 

■

Time of Day and Weekend dial
backup lockout options

■

Support for T-Watch PRO

TM

software for optional PC 
based configuration

■

Standard 5-year warranty

TSU ESP

C4