Equipment information:

Spirent Communications TAS 240 Other
Manufacturer:
Spirent Communications
Model: TAS 240
Date: 2001
Category: Radio, Communication
Group: Other
Description: Voiceband Subscriber Loop Emulator
Information:
                                    The TAS 240 Voiceband Subscriber Loop Emulator (VSLE) is a
general purpose
loop emulator for voiceband applications. The VSLE provides
simulation of up to
four (4) loops in a single enclosure. The VSLE has been
designed specifically to
provide the loop emulation required for testing high-speed
voiceband modems per
the specifications provided by (or currently proposed by)
the EIA/TIA TR30.3
sub-committee, ETSI, and the CCITT.
The VSLE simulates four loops in order to completely emulate
the network which
interconnects two modems. The four loops are allocated to
the following:
• One "main" loop between the Telephone Network Emulator
station A, and
modem "A"
• One "main" loop between the Telephone Network Emulator
station B, and
modem "B"
• One "tracking" loop to provide the balance network for the
station A hybrid
• One "tracking" loop to provide the balance network for the
station B hybrid
The second pair of loops, "main" loop for station B and its
associated tracking
loop, is an optional feature of the VSLE.
The VSLE also emulates impairments such as noise, impulse
hits and mutiple
frequency interference, which are present on the local
loops. These impairments
are specified by the developing TIA PN 3857 test
specification. Impairments are
an optional feature of the VSLE.
In addition to loop simulation and impairments the VSLE
simulates metering
pulses which are present on the local loops of several
European countries, and are
specified by the ETSI test specifications. Metering pulses
are also an optional
feature of the VSLE.
The available models and configuration of options for the
TAS 240 VSLE are as
follows:
• 240A VSLE with four loops and metering pulses
• 240 VSLE with four loops
• 240L VSLE with two loops
(Loop A with A tracking loop).
• 240M VSLE with metering pulses and no loops
• 240I VSLE with four loops and impairments
The TAS 240 Voiceband Subscriber Loop Emulator (VSLE) is
designed to
emulate the local loop conditions specified by the EIA/TIA
TR30.3, ETSI, and
ITU (CCITT) organizations. In addition the TAS 240 will
emulate user defined
loops. The TAS 240 emulates up to two sets of loops where
each set consists of a
"main" loop and its associated "tracking" loop. The main
loop is used to emulate
the Station A or Station B local loop, while the tracking
loop is used primarily as
the balance network for balancing the Station A or Station B
hybrid. Loop B is
independent of Loop A. However, each tracking loop is always
identical to its
main loop. For test configurations which do not require the
balance network to be
identical to the loop, the tracking loop may be used as a
primary loop.
The TAS 240 VSLE my be equipped with the optional impairment
generator
when initially purchased. This option allows the user to
control noise, impulse
hits, and multiple frequency interference individually. Each
of these impairments
can also be turned on simultaneously with any of the other
impairment operating.
Loop impairments are necessary to meet the testing
requirments of the developing
TIA PN3857 testing standard.
The TAS 240 VSLE may be equipped with the optional metering
pulse generator
when initially purchased. This option allows the user to
program the frequency,
level, and cadence of the metering (or billing) pulse signal
injected onto the
specified main loop. Metering pulses are required to meet
the ETSI testing
requirements of several European countries.
The TAS 240 is intended to be integrated into a complete
modem test system
under control of TASKIT. The components of the overall test
system include a
TAS 1022 Gemini Dual Terminal Emulator, and either the TAS
100 Series or
TAS Series II Telephone Network Emulator. Alternatively, the
TAS 240 may
also be used as a standalone product, controlled manually
via the front panel, or
remotely via RS-232 or IEEE-488.

These manuals are available for the above equipment:

Spirent Communications -- TAS 240 -- User Manual
File name: TAS-7444-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 128
Size: 1.07 Mbytes (1122295 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 2001
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: a824fc885e9ccd1a259cf9e4fbb81cc6
ed2kID: b5d2c0edc1543db0c49d6dc2f48bb367
Downloads: 25 since 27 December 2015
Information:
The TAS 240 Voice Band Subscriber Loop Emulator Operations
Manual contains
the information required to use the emulator in the most
effective manner. It is
recommended that you familiarize yourself with this manual
before attempting to
use the TAS 240. This manual is organized as follows:
Introduction - prepares you to begin using the TAS 240. It
provides a brief
description, the features and applications, overviews of the
front and rear panel,
and installation procedures.
Local Operation -discusses the functions of the various
displays, controls, jacks,
and ports located on the front and rear panels.
Remote Control Operation - provides the necessary
information to control the
TAS 240 via RS-232C or GPIB (IEEE-488) interfaces. This
section is essential
reading for those who will be integrating a TAS 240 into a
larger test system.
Descriptions are also provided of the TAS 240 error codes
possibly encountered
during power-up or operation.
Command Summary - provides detailed descriptions of each
remote command and
its parameters. A summary of all the TAS 240 remote commands
is included for
quick reference.
Error Codes - list all the error codes that may be
encountered during the operation
of the TAS 240.
Technical Specifications - contains detailed system
specifications, connector
pinouts, and loop response graphs.
Application Notes - is reserved for application bulletins.
An appendix addressing
the TAS 240 Metering Pulses Option is included in this
section. Application Note
# 7 “The Effect of Metering Pulse Interference on Modems &
Fax Machines” is
also included.
TAS-7444-Manual-Page-1-Picture
Start Free Download


Spirent Communications -- TAS 240 -- User Manual
File name: TAS-7445-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 128
Size: 1.08 Mbytes (1130139 Bytes)
Language: english
Revision: 2.1
Manual-ID/Number: 2700-2397
Date: 2001
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: ba54f28dba29dc428039fee03dd987ea
ed2kID: cfc26e968289044d7ab480536c23d0db
Downloads: 25 since 28 December 2015
Information:
The TAS 240 Voice Band Subscriber Loop Emulator Operations
Manual contains
the information required to use the emulator in the most
effective manner. It is
recommended that you familiarize yourself with this manual
before attempting to
use the TAS 240. This manual is organized as follows:
Introduction - prepares you to begin using the TAS 240. It
provides a brief
description, the features and applications, overviews of the
front and rear panel,
and installation procedures.
Local Operation -discusses the functions of the various
displays, controls, jacks,
and ports located on the front and rear panels.
Remote Control Operation - provides the necessary
information to control the
TAS 240 via RS-232C or GPIB (IEEE-488) interfaces. This
section is essential
reading for those who will be integrating a TAS 240 into a
larger test system.
Descriptions are also provided of the TAS 240 error codes
possibly encountered
during power-up or operation.
Command Summary - provides detailed descriptions of each
remote command and
its parameters. A summary of all the TAS 240 remote commands
is included for
quick reference.
Error Codes - list all the error codes that may be
encountered during the operation
of the TAS 240.
Technical Specifications - contains detailed system
specifications, connector
pinouts, and loop response graphs.
Application Notes - is reserved for application bulletins.
An appendix addressing
the TAS 240 Metering Pulses Option is included in this
section. Application Note
# 7 “The Effect of Metering Pulse Interference on Modems &
Fax Machines” is
also included
TAS-7445-Manual-Page-1-Picture
Start Free Download


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