ETSI ETS 300 160 ed.2 (1997-01)

Satellite Earth Stations and Systems (SES); Control and monitoring functions at a Very Small Aperture Terminal (VSAT)

RE/SES-00010

Satelitske zemeljske postaje in sistemi (SES) – Krmilne in nadzorne funkcije satelitskega terminala z zelo majhno antensko odprtino (VSAT)

General Information

• Status: Published
• Publication Date: 06-Jan-1997
• Technical Committee: SES - Satellite Earth Stations & Systems
• Current Stage: 12 - Completion
• Due Date: 10-Jan-1997
• Completion Date: 07-Jan-1997
• Ref Project: SIST ETS 300 160 E2:2006 - Satellite Earth Stations and Systems (SES); Control and monitoring functions at a Very Small Aperture Terminal (VSAT)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 160 E2:2006
01-februar-2006
Satelitske zemeljske postaje in sistemi (SES) – Krmilne in nadzorne funkcije
satelitskega terminala z zelo majhno antensko odprtino (VSAT)
Satellite Earth Stations and Systems (SES); Control and monitoring functions at a Very
Small Aperture Terminal (VSAT)
Ta slovenski standard je istoveten z: ETS 300 160 Edition 2
ICS:
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
SIST ETS 300 160 E2:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 160 E2:2006
EUROPEAN ETS 300 160
TELECOMMUNICATION January 1997
STANDARD Second Edition
Source: ETSI TC-SES Reference: RE/SES-00010
ICS: 33.020
Key words: Satellite, earth station, VSAT, control, NCF
Satellite Earth Stations and Systems (SES);
Control and monitoring functions at a
Very Small Aperture Terminal (VSAT)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail]
Tel.: [phone] - Fax: [phone]
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1997. All rights reserved.

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Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions.7
4 Abbreviations.8
5 Test report.8
6 Specifications .8
6.1 General .8
6.2 Specification of states.10
6.3 Control Channel(s) (CC) .11
6.4 Self monitoring functions .12
6.4.1 Processor monitoring .12
6.4.2 Transmit subsystem monitoring .13
6.4.3 VSAT transmission validation.13
6.4.3.1 VSAT transmission validation by the CCMF.13
6.4.3.2 VSAT transmission validation by receiving station(s).13
6.4.3.3 Transmission validation for VSATs using external CC(s).14
6.5 Central control functions .14
6.5.1 Disable message.14
6.5.2 Enable message.15
6.6 Power-on/reset.15
History.16

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Foreword
This second edition European Telecommunication Standard (ETS) has been produced by the Satellite
Earth Stations and Systems (SES) Technical Committee of the European Telecommunications Standards
Institute (ETSI).
Every ETS approved by ETSI is a voluntary standard. This ETS may contain text concerning type approval
of the equipment to which it relates. This text should be considered as guidance only and does not make
this ETS mandatory.
Transposition dates
Date of adoption 20 December 1996
Date of latest announcement of this ETS (doa): 30 April 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 October 1997
Date of withdrawal of any conflicting National Standard (dow): 31 October 1997

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1 Scope
This second edition European Telecommunication Standard (ETS) is applicable to two-way (transmit and
receive) as well as transmit-only Very Small Aperture Terminal (VSAT) satellite earth stations operating in
the framework of a satellite network for digital communication purposes as defined in ETS 300 159 [1] and
ETS 300 332 [3]. In these networks there is a set of control and monitoring functions at each VSAT and a
separate set of Centralized Control and Monitoring Functions (CCMF). The control and monitoring
functions are designed to limit interferences to users of the frequency spectrum due to a fault condition at
the VSAT. This ETS is applicable to VSATs operating in any network configuration including star, mesh
and point-to-point connections.
This ETS specifies the control and monitoring functions of a VSAT. ETS 300 161 [2] specifies the CCMF.
The VSATs which are the subject of this ETS, are designed for unattended operation and with
transmission capability limited to baseband digital signals. Transmission and reception at a VSAT relate to
transmission and reception over the satellite.
CCMF constitute a set of functional entities that, at system level, monitor and control the correct operation
of all VSATs in a network.
This ETS does not include any specification or information about the installation of the VSAT.
2 Normative references
This ETS incorporates by dated or undated references, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to, or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] ETS 300 159: "Satellite Earth Stations and Systems (SES); Transmit/receive
Very Small Aperture Terminals (VSATs) used for data communications
operating in the Fixed Satellite Service (FSS) 11/12/14 GHz frequency bands".
[2] ETS 300 161: "Satellite Earth Stations and Systems (SES); Centralized control
and monitoring functions for VSAT networks".
[3] ETS 300 332: "Satellite Earth Stations and Systems (SES); Transmit/receive
Very Small Aperture Terminals (VSATs) used for data communications
operating in the Fixed Satellite Service (FSS) 6 GHz and 4 GHz frequency
bands".
3 Definitions
For the purpose of this ETS, the following definitions apply:
Control Channel(s): A channel or channels by which VSATs receive control information from the CCMF.
Response Channel(s): A channel or channels by which VSATs transmit monitoring information to the
CCMF.
network: In this ETS a network is any network configuration including star, mesh and point-to-point
configurations.
internal control channel: A control channel which is carried by the VSAT network via the same satellite
as used for transmission of user data and within the internal protocol structure of the VSAT system.
external control channel: A control channel which is either (i) carried by the VSAT network via the same
or another satellite, but not within the internal protocol structure of the VSAT system, or (ii) carried by the
PSTN or some other means.

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internal response channel: A response channel which is carried by the VSAT network via the same
satellite as used for transmission of user data and within the internal protocol structure of the VSAT
system.
external response channel: A response channel which is either (i) carried by the VSAT network via the
same or another satellite, but not within the internal protocol structure of the VSAT system, or (ii) carried
by the PSTN or some other means.
4 Abbreviations
For the purpose of this ETS, the following abbreviations apply:
CC Control Channel
CCD Central Control Disable
CCE Central Control Enable
CCMF Centralized Control and Monitoring Functions
CV Control Variable
EIRP Equivalent Isotropically Radiated Power
PSTN Public Switched Telephone Network
RC Response Channel
RE Reset Event
SMF Status Monitoring Fail event
SMP Status Monitoring Pass event
SMV Self Monitoring Variable
VSAT Very Small Aperture Terminal
5 Test report
The test report shall contain:
- the type of control channel(s) (CC);
- the characteristics of the external CCs including protocols;
- the test results.
6 Specifications
6.1 General
This ETS specifies a minimum set of control and monitoring functions that shall be implemented in VSATs
in order to minimize the probability that they may originate transmissions that may interfere with other
systems.
A VSAT shall implement two sets of control and monitoring functions:
a) Monitoring functions: these functions encompass all the checks and verifications that the VSAT
shall perform in order to identify any anomalous situation which may cause impairments to other
systems.
The overall result of these checks and verifications are contained in a functional variable named
Self Monitoring Variable (SMV). The states of this variable are "Pass" and "Fail".
The state of the SMV may change as a result of events. These are:
- Status Monitoring Pass event (SMP);
- Status Monitoring Fail event (SMF).
The circumstances under which these events may take place are specified in subclause 6.4 of this
ETS.
b) Control functions: these functions are associated with the ability of the CCMF to inhibit and to permit
transmissions from an individual VSAT as specified in ETS 300 161 [2].

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These functions are reflected in the state of a functional variable, resident at each VSAT, named
Control Variable. The states of this variable are "enable" and "disable".
The Control Variable may change as a result of events. These are:
- Central Control Disable (CCD);
- Central Control Enable (CCE).
The circumstances associated to the reception of the messages resulting in these events are
specified in subclause 6.5 of this ETS.
Besides these two sets of control and monitoring functions, the VSATs shall achieve a controlled
non-transmitting state following actuation of the terminal (power-on).
VSATs that allow local operator intervention may include a terminal reset function which when actuated
results in a Reset Event (RE).
Subclause 6.6 specifies the functions associated with the occurrence of the "power-on" and REs.
The combination of the SMV and CV results in the definition of 4 possible states in which a VSAT may be
from the control and monitoring point-of-view.
The states of the VSAT are:
- out-of-service;
- checking;
- stand-by;
- in-service.
Figure 1 shows the state transition diagram associated with these 4 states. The operational behaviour of
the VSAT (with respect to control and monitoring), in each of these states, is specified in subclause 6.2.
In the "in-service" state, t
...