SIST ETS 300 012 E1:2003

SLOVENSKI STANDARD
SIST ETS 300 012 E1:2003
01-december-2003
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Integrated Services Digital Network (ISDN); Basic user-network interface; Layer 1
specification and test principles
Ta slovenski standard je istoveten z: ETS 300 012 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ETS 300 012 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 012 E1:2003

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SIST ETS 300 012 E1:2003
EUROPEAN ETS 300 012
TELECOMMUNICATION April 1992
STANDARD
Source: ETSI TC-TM Reference: DE/TM-3009
ICS: 33.040, 33.040.50, 33.080
ISDN, user network interface, testing
Key words:
Integrated Services Digital Network (ISDN);
Basic user-network interface
Layer 1 specification and test principles
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
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 1992. All rights reserved.
New presentation - see History box

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ETS 300 012: April 1992
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 Standards Approval Dept." at the address shown on the title page.

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Contents
Foreword.9
1 Scope . 11
2 Normative references . 11
3 Definitions. 12
4 Abbreviations and symbols. 14
5 Conformance . 15
6 Requirements. 16
7 Additional requirements. 16
7.1 Limitations on power source and sink during transient conditions. 16
7.1.1 Current/time limitations for TEs. 16
7.1.2 Power source switch-over. 17
7.1.2.1 Power source switch-over time. 17
7.1.2.2 Restricted mode power source requirements under
overload conditions . 17
7.1.3 Other TE requirements . 18
7.1.3.1 Minimum TE start up current. 18
7.1.3.2 Protection against short term interruptions. 18
7.1.3.3 Behaviour at the switch-over. 19
7.1.4 Other power source requirements . 19
7.1.4.1 Power source 1 restricted. 19
7.1.4.2 Power source 1 normal. 19
7.1.4.3 Requirements for type (a) sources. 19
7.1.4.4 Requirements for both types of sources . 19
7.1.4.4.1 Switch-on surge capability. 19
7.1.4.4.2 TE connection surge capability . 20
7.2 Current unbalance. 20
7.2.1 Direct current unbalance . 20
7.2.1.1 DC unbalance of PS1. 20
7.2.1.2 DC unbalance of power sink 1 . 20
7.2.1.3 Differential resistance in a pair of the installation wiring. 21
7.2.2 Current unbalance in a pair. 21
7.3 Additional requirements for an Auxiliary Power Supply (APS). 21
7.3.1 Power available for an APS. 21
7.3.2 APS switch-on time . 22
7.3.3 APS switch-off time. 22
7.3.4 APS power consumption when off . 22
7.3.5 Dynamic behaviour of APS. 22
7.4 Additional requirements for NT1 restricted mode source for compatibility with an APS. 22
7.4.1 PS1 restricted mode back-off. 22
7.4.2 PS1 restricted mode power-up. 23
7.4.3 NT1 power consumption from APS normal mode . 23
Annex A (normative): Statements, modifications and additional requirements to CCITT
Recommendation I.430 [2]. 24
Annex B (normative): Additional requirements applicable to the (explicit) S reference point. 39

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B.1 Introduction.39
B.2 References.39
B.3 Definitions. 39
B.3.1 Private Network Termination (PNT).39
B.3.2 Terminal Equipment (TE) .39
B.4 Conformance .39
B.5 Requirements.39
B.6 Provision of power.39
Annex C (informative): TE design to minimise power disturbance.40
Annex D (normative): Conformance test principles to Interface Point I .42
a
D.1 Scope and general information . 42
D.1.1 Scope .42
D.1.2 General information.43
D.1.3 Definitions and abbreviations.43
D.1.4 Allocation of tests.43
D.1.4.1 General . 43
D.1.4.2 Service characteristics. 43
D.1.4.3 Modes of operation .44
D.1.4.4 Wiring .44
D.1.4.5 Functional characteristics.44
D.1.4.6 Interface procedures .45
D.1.4.7 Maintenance .45
D.1.4.8 Electrical characteristics .46
D.1.4.9 Power feeding. 47
D.1.4.10 Interface connector and contact assignments.48
D.1.4.11 Annexes .48
D.2 Functional characteristic tests (Clause A.5, ETS 300 012).49
D.2.1 Binary organisation of frame.49
D.2.1.1 Test A (subclauses A.5.4.2.1, A.5.5, A.5.6, ETS 300 012) .49
D.2.1.2 Test B (subclause A.6.2.2, ETS 300 012) .51
D.3 Interface procedure tests (Clause A.6, ETS 300 012) .52
D.3.1 D-channel access control procedure (subclause A.6.1, ETS 300 012) .52
D.3.1.1 Interframe (layer 2) time fill (subclause A.6.1.1, ETS 300 012) .52
D.3.1.2 D-echo channel response (subclauses A.6.1.3 to A.6.1.6, ETS 300 012).53
D.3.2 Activation/deactivation (subclause A.6.2, ETS 300 012) .54
D.3.2.1 Activation/deactivation procedure (subclause A.6.2, ETS 300 012).54
D.3.2.2 Timer for activation/deactivation (subclause A.6.2, ETS 300 012).56
D.3.2.2.1 Timer for activation when receiving INFO 2.56
D.3.2.2.1.1 Test A, in state F3 (subclause
A.6.2.6.1, ETS 300 012).56
D.3.2.2.1.2 Test B, in state F4 (subclause
A.6.2.6.1, ETS 300 012).56
D.3.2.2.2 Timer for activation when receiving INFO 4 (subclause
A.6.2, ETS 300 012).57
D.3.2.2.2.1 Test A, in state F3 (subclause
A.6.2.6.1, ETS 300 012).57
D.3.2.2.2.2 Test B, in state F4
(subclause A.6.2.6.1, ETS 300 012) .57

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D.3.2.2.3 Timer for activation when receiving any signal (subclause
A.6.2.6.1, ETS 300 012) . 58
D.3.2.2.4 Value of the timer T3 (subclause A.6.2.5, ETS 300 012). 58
D.3.2.2.5 Timer for physical deactivation. 59
D.3.2.2.5.1 Test A, in state F6 (subclause A.6.2.7,
ETS 300 012) . 59
D.3.2.2.5.2 Test B, in state F7 (subclause A.6.2.7,
ETS 300 012) . 59
D.3.2.2.6 Timer for complete deactivation . 60
D.3.2.2.6.1 Test A, in state F7 (subclause
A.6.2.3.2, ETS 300 012, NOTE 6). 60
D.3.2.2.6.2 Test B, in state F8 (subclause
A.6.2.3.2, ETS 300 012, NOTE 6). 61
D.3.3 Frame alignment procedures (subclause A.6.3, ETS 300 012). 62
D.3.4 Multiframing procedures (subclause A.6.3.3, ETS 300 012). 63
D.3.5 Idle channel code on the B-channels (subclause A.6.4, ETS 300 012). 63
D.4 Electrical characteristics tests (Clause A.8, ETS 300 012) . 64
D.4.1 Frame rate when transmitting an INFO 1 (subclause A.8.1, ETS 300 012). 64
D.4.2 TE jitter characteristics (subclause A.8.2, ETS 300 012). 65
D.4.2.2 TE output phase deviation (test B) (subclause A.8.2.3, ETS 300 012) . 67
D.4.3 TE transmitter output impedance (subclause A.8.5.1.2, ETS 300 012) . 69
D.4.3.1 Test A . 69
D.4.3.2 Test B . 70
D.4.3.3 Test C. 71
D.4.3.4 Test D. 71
D.4.3.5 Test E . 72
D.4.4 Pulse shape and amplitude (subclause A.8.5.3, ETS 300 012). 73
D.4.5 Pulse unbalance (subclause A.8.5.4, ETS 300 012). 74
D.4.5.1 Pulse amplitude (subclause A.8.5.4.1, ETS 300 012) . 74
D.4.5.2 Pulse unbalance of an isolated couple of pulses (subclause A.8.5.4.2, ETS
300 012). 75
D.4.6 Voltage on other test loads (subclause A.8.5.5, ETS 300 012) . 76
D.4.6.1 Test A (subclause A.8.5.5.1, ETS 300 012) . 76
D.4.6.2 Test B (subclause A.8.5.5.2, ETS 300 012) . 77
D.4.7 Longitudinal conversion loss of transmitter output (subclause A.8.5.6.1, ETS 300 012). 78
D.4.8 Receiver input characteristics (subclause A.8.6, ETS 300 012). 79
D.4.8.1 TE receiver input impedance (subclause A.8.6.1.1, ETS 300 012). 79
D.4.8.1.1 Test A . 79
D.4.8.1.2 Test B . 80
D.4.8.1.3 Test C . 81
D.4.8.1.4 Test D . 82
D.4.8.2 Receiver sensitivity - noise and distortion immunity (subclause A.8.6.2,
ETS 300 012) . 83
D.4.8.3 Unbalance about earth of receiver input (subclause A.8.6.4, ETS 300 012). 84
D.5 Power feeding (subclause A.9, ETS 300 012) . 85
D.5.1 Power source 1 phantom mode (subclause A.9.3.1, ETS 300 012). 86
D.5.1.1 Normal power conditions (subclause A.9.3.1.1, ETS 300 012). 86
D.5.1.1.1 Normal power provision (Test A). 86
D.5.1.1.2 Normal power provision (Test B). 87
D.5.1.1.3 Normal power provision (Test C). 88
D.5.1.1.4 Normal power provision (Test D). 89
D.5.1.1.5 Normal power provision (Test E). 90
D.5.1.2 Restricted power conditions (subclause A.9.3.1.2, ETS 300 012) . 91
D.5.1.2.1 Restricted power provision (Test A). 91
D.5.1.2.2 Restricted power provision (Test B). 92
D.5.1.2.3 Restricted power provision (Test C). 93
D.5.1.2.4 Restricted power provision (Test D). 94
D.5.1.2.5 Restricted power provision (Test E). 95

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D.5.1.2.6 Restricted power provision (Test F) . 96
D.5.1.3 Current transient (subclause A.9.4, ETS 300 012).97
D.5.1.4 Limitation on power sink during transient conditions (subclause 7.1, ETS
300 012).98
D.5.1.4.1 Current/time limitation for TE (subclause 7.1.1, ETS 300
012).98
D.5.1.4.2 Current/time limitation for TE when connecting
(subclause 7.1.1, ETS 300 012). 100
D.5.1.4.3 Behaviour of a TE using a connection detector
(subclause 7.1.1, ETS 300 012). 101
D.5.1.4.4 Power start-up test (subclause 7.1.3.1, ETS 300 012) . 102
D.5.1.4.4.1 Power start-up test after removal of
short-circuit (subclause 7.1.3.1, ETS
300 012). 102
D.5.1.4.4.2 Power start-up test at low input
voltage (subclause 7.1.3.1, ETS 300
012) . 103
D.5.1.4.5 Protection against short-term interruptions
(subclause 7.1.3.2, ETS 300 012). 104
D.5.1.4.5.1 Normal power . 104
D.5.1.4.5.2 Restricted power. 105
D.5.1.4.6 Behaviour at the switch-over (subclause 7.1.3.3-ETS 300
012). 106
D.5.1.4.6.1 Normal power . 106
D.5.1.4.6.2 Restricted power (subclause 7.1.3.3,
ETS 300 012) . 107
D.5.1.4.7 DC unbalance of TEs using power sink 1
(subclause 7.2.1.2, ETS 300 012). 108
D.5.1.4.8 Effect of current unbalance (subclause 7.2.2, ETS 300
012). 109
D.5.2 Power Source 2 - Optional third pair (subclause A.9.3.2, ETS 300 012) . 111
Annex E (normative): Conformance test principles to interface point I . 112
b
E.1 Scope and general information . 112
E.1.1 Scope . 112
E.1.2 General information. 112
E.1.3 Definitions and abbreviations. 113
E.1.4 Allocation of tests. 114
E.1.4.1 General . 114
E.1.4.2 Service characteristics. 114
E.1.4.3 Modes of operation . 114
E.1.4.4 Wiring. 114
E.1.4.5 Functional characteristics. 115
E.1.4.6 Interface procedures . 116
E.1.4.7 Maintenance . 116
E.1.4.8 Electrical characteristics . 117
E.1.4.9 Power feeding. 118
E.1.4.10 Interface connector and contact assignments . 119
E.1.4.11 Annexes. 119
E.2 Functional characteristic tests (Clause A.5, ETS 300 012). 120
E.2.1 Binary organisation of frame (subclause A.5.4.2.2, ETS 300 012). 120
E.2.1.1 Test A . 120
E.2.1.2 Test B . 122
E.3 Interface procedure tests (Clause A.6, ETS 300 012) . 123
E.3.1 D-channel Interframe Time Fill (subclause A.6.1.1, ETS 300 012). 123
E.3.2 D-echo channel response (subclause A.6.1.2, ETS 300 012). 123
E.3.3 Activation/deactivation (subclause A.6.2, ETS 300 012) . 124

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E.3.3.1 Activation/Deactivation Procedure (subclause A.6.2, ETS 300 012). 124
E.3.3.2 Activation/deactivation time (subclause A.6.2, ETS 300 012) . 126
E.3.3.2.1 NT activation time (subclause A.6.2.6.2, ETS 300 012) . 126
E.3.3.2.2 Deactivation time (subclause A.6.2.7, ETS 300 012) . 128
E.3.3.2.3 Value of the timer T2 (subclause A.6.2.6.2, ETS 300
012) . 128
E.3.4 Frame alignment procedures (subclause A.6.3, ETS 300 012). 129
E.4 Electrical characteristic tests (Clause A.8, ETS 300 012) . 130
E.4.1 Bit rate (subclause A.8.1, ETS 300 012). 130
E.4.1.1 Bit rate when transmitting an INFO 2 (subclause A.8.1.1 and A.8.1.2, ETS
300 012). 130
E.4.1.2 Bit rate when transmitting an INFO 4 (subclause A.8.1.1 and A.8.1.2, ETS
300 012). 131
E.4.2 NT jitter characteristics (subclause A.8.3, ETS 300 012). 132
E.4.3 NT transmitter output impedance (subclause A.8.5.1.1, ETS 300 012) . 133
E.4.3.1 Test A. 133
E.4.3.2 Test B. 134
E.4.4 Pulse shape and amplitude (subclause A.8.5.3, ETS 300 012). 135
E.4.5 Pulse unbalance (subclause A.8.5.4, ETS 300 012). 136
E.4.5.1 Pulse amplitude (subclause A.8.5.4.1, ETS 300 012) . 136
E.4.5.2 Pulse unbalance of an isolated couple of pulses (subclause A.8.5.4.2, ETS
300 012). 137
E.4.6 Longitudinal conversion loss of transmitter output (subclause A.8.5.6.1, ETS 300 012). 138
E.4.7 Receiver input characteristics (subclause A.8.6, ETS 300 012). 139
E.4.7.1 NT receiver input impedance (subclause A.8.6.1.2, ETS 300 012). 139
E.4.7.1.1 Test A . 139
E.4.7.1.2 Test B . 140
E.4.7.2 Receiver sensitivity - Noise and distortion immunity (subclause A.8.6.2,
ETS 300 012) . 141
E.4.7.3 NT receiver input delay characteristics (subclause A.8.6.3, ETS 300 012) 142
E.4.7.4 Unbalance about earth of the receiver input (subclause A.8.6.4, ETS 300
012). 143
E.5 Power feeding (Clause A.9, ETS 300 012). 144
E.5.1 Power source 1 . 144
E.5.1.1 Normal power condition (subclause A.9.2.2.1, ETS 300 012). 144
E.5.1.2 Restricted power condition (subclause A.9.2.2.2, ETS 300 012) . 145
E.5.1.3 Power source switch-over time (subclause 7.1.2.1, ETS 300 012) . 146
E.5.1.4 Power source 1 restricted mode under overload conditions
(subclause 7.1.2.2, ETS 300 012) . 147
E.5.1.4.1 Test A (subclause 7.1.2.2, ETS 300 012). 147
E.5.1.4.2 Test B (subclause 7.1.2.2, ETS 300 012). 148
E.5.1.4.3 Power source 1 restricted (Test C) (subclause 7.1.2.2,
ETS 300 012). 149
E.5.1.4.4 Power source 1 restricted (Test D) (subclause 7.1.4.1,
ETS 300 012). 150
E.5.1.5 Requirements for type "a" sources (subclause 7.1.4.3, ETS 300 012). 151
E.5.1.6 Switch on surge capability (subclause 7.1.4.4.1, ETS 300 012) . 152
E.5.1.7 TE connection surge capability (subclause 7.1.4.4.2, ETS 300 012). 153
E.5.1.8 DC unbalance of power source 1 (subclause 7.2.1.1, ETS 300 012) . 154
E.5.1.9 Current unbalance in a pair (subclause 7.2.2, ETS 300 012). 155
E.5.2 Minimum voltage of power source 2 (subclause A.9.2.3, ETS 300 012). 156
E.6 Auxiliary power supply . 157
E.6.1 Additional requirements from an APS (subclause 7.3, ETS 300 012). 157
E.6.1.1 APS switch-on time (subclause 7.3.2, ETS 300 012). 158
E.6.1.2 APS switch-off time (subclause 7.3.3, ETS 300 012) . 159
E.6.1.3 APS requirements for type "a" sources (subclause 7.1.4.3, ETS 300 012) 160
E.6.1.4 APS switch on surge capability (subclause 7.1.4.4.1, ETS 300 012) . 161

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E.6.1.5 APS TE connection surge capability (subclause 7.1.4.4.2, ETS 300 012). 162
E.6.1.6 APS current unbalance in a pair (subclause 7.2.2, ETS 300 012) . 163
E.6.2 Additional requirements for NT compatible with APS (subclause 7.4, ETS 300 012) . 164
E.6.2.1 Power source 1 mode back-off (subclause 7.4.1, ETS 300 012). 164
E.6.2.2 Power source 1 restricted mode power-up (subclause 7.4.2, ETS 300
012) . 165
E.6.2.3 Power consumption from APS normal mode (subclause 7.4.3, ETS 300
012) . 166
History . 167

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Foreword
This European Telecommunication Standard (ETS) was produced by the Transmission and Multiplexing
(TM) Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS aims to meet urgent requirements of network operators and equipment manufacturers who are
designing equipment to operate with an Integrated Services Digital Network (ISDN) basic rate access
user-network interface. This ETS shall replace CEPT Recommendation T/L 03-07 (November 1987).
This ETS takes into account the special requirements from ECMA Standard 103: "Physical layer at the
basic access interface between data processing equipment and private switching networks" (1987, 2nd
Edition) in Annex B.

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1 Scope
This European Telecommunication Standard (ETS) specifies requirements and test principles for the ISDN
basic rate user-network interface including the physical, electrical and functional characteristics and the
information exchange with higher layers. This ensures that interface implementations in an ISDN equipment
for use with ISDN basic access is portable within Europe with regard to layer 1 interface aspects and
...