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Siemens Hipath 5000 Service Manual

Siemens Hipath 5000
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Boards for HiPath 3000
P31003-H3560-S403-54-7620, 09/05
3-250 HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
boards.fm
Peripheral Boards
3.3.26 TIEL
Introduction
The TIEL board (Tie Line Ear & Mouth) provides four bothway analog tie trunk circuits for E&M
signaling for HiPath 3750 and HiPath 3700. Each tie trunk circuit has eight connectors: incom-
ing speech path (2), outgoing speech path (2), incoming signaling (2) and outgoing signaling
(2).
This allows tie trunk traffic to other private communication systems.
Speech paths
The speech paths can be set to four-wire or two-wire mode. Four-wire connections should be
used for high transmission quality on analog networks (this description deals only with four-wire
mode).
The advantage of separate speech paths for the incoming and outgoing directions is that the
stability (echo) of a connection is not adversely affected. In addition, repeaters in the transmis-
sion equipment compensate for attenuation loss on the line.
E&M signaling paths
The E&M signaling paths carry the signals that control connection setup and cleardown. Vari-
ous interfaces can be selected, depending on the requirements of the remote system or trans-
mission equipment. These interface types have different numbers of wires and different poten-
tials.
Starting up a tie trunk
Before you can start up a tie trunk, you must determine the type of interface supported by the
two systems. Type 2 is preferable because it virtually excludes problems with longitudinal volt-
ages.

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Siemens Hipath 5000 Specifications

General IconGeneral
BrandSiemens
ModelHipath 5000
CategoryTelephone
LanguageEnglish

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