Road vehicles — Low-speed serial data communication — Part 3: Vehicle area network (VAN) — Amendment 1

Inserts a new page v and a new introduction. Adds, on page 79, a new clause before clause 8.

Véhicules routiers — Communication en série de données à basse vitesse — Partie 3: Réseau local de véhicule (VAN) — Amendement 1

General Information

Status
Published
Publication Date
05-Apr-1995
Current Stage
6060 - International Standard published
Completion Date
06-Apr-1995
Ref Project

Relations

Buy Standard

Standard
ISO 11519-3:1994/Amd 1:1995
English language
5 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 11519-3
First edition
1994-06-15
AMENDMENT 1
1995-04-0 1
Road vehicles - Low-Speed serial data
communication -
Part 3:
Vehicle area network (VAN)
AMENDMENT 1
V&hicules routiers - Communication en s&ie de donnees a
vitesse basse -
Partie 3: R&eau local de &hicule (VAN)
AMENDEMENT 1
Reference number
ISO 11519-3:1994/Amd.l:1995(E)

---------------------- Page: 1 ----------------------
ISO ‘M519-3:1994/Amd.l:1995(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide
federation of national Standards bodies (ISO member bodies). The work of
preparing International Standards is normally carried out through ISO
technical committees. Esch member body interested in a subject for which
a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
Amendment 1 to International Standard ISO 11519-3:1994 was prepared
by Technical Committee ISOflC 22, Road vehicles, Subcommittee SC 3,
Electrical and electronie equipment.
ISO 11519 consists of the following Parts, under the general title Road
- Low-Speed serial data communication :
vehicles
Part 7: General and definitions
Part 2: Low-Speed con troller area ne twork (CA N)
- Part 3: Vehicle area network (VAN)
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International
Organization for Standardization
Case postale
56 . CH-1211 Geneve 20 0 Switze
Printed in Switzerland
ii

---------------------- Page: 2 ----------------------
0 ISO ISO 11519-3:1994/Amd.l:1995(E)
Road vehides - Low-Speed serial data communication -
Part 3:
Vehicle area network (VAN)
AMENDMENT 1
Page iv
Insert new page v and the following Introduction.
Introduction
Validation tests on vehicles have been conducted on the basis of ISO 11519-3:1994. The Speed of data
transmission has been increased up to 250 kTS/s with the same reliability providing that:
- Filter description and System characteristics are more precisely given, and
- Parameter specifications of the transceiver are improved.
Amendment 1 to ISO 11519-3 details the necessary changes to the 1994 Standard.
Page 79
Add a new clause before clause 8, to read as follows.
7.6 Alternative up to 250 kTS/s
This clause describes the network interface up to 250 kTS/s.
The definition of TS (Time Slot) is according to clause 7.2.3 Bit encoding of ISO 11519-3 (VAN).
250 kTS/s is corresponding to 125 kbit/s in Manchester coding and 200 kbit/s in Enhanced Manchester coding.
7.6.1 System description
7.6.1 .l Functional block diagram
This block diagram is given in figure 52.

---------------------- Page: 3 ----------------------
ISO 11519-3:1994/Amd.l:1995(E)
0 ISO
TRANSCEIVER
Dataß
R1 t
Ri
r
FILTER
R” t
RiB
--l-
1
R2 t
Figure 52 - 250 kTS/s VAN bus interface

---------------------- Page: 4 ----------------------
0 ISO ISO 11519-3:1994/Amd.l:1995(E)
7.6.1.2 Filter section
The diagram is given in figure 53, together with the Parameters.
m
a m
1 Rl w 1 R3 7 v ) Ri
Data c2
Cl
R2
i!i
POL
WV
T
RZ
Cl c2
DataB
,
1 Rl - S R3 s Riß
b
Parameter Recommended value Tolerante Comments
I I I I I
Cl 100 pF 3 50 v
c2 120 pF f 10 % 2 25 V
Rl 1/4 W continuous
100 R
l 1 I I I
Figure 53 - 250 kTS/s filter
7.6.1.3 Cable characteristics
Value
Parameter Test condition and description
min. typical 1 max. Unit
0 1 200 1 pF/module
Cg-data Overall capacitance between ground and Data
I I I
Cg-dataB Overall capacitance between ground and DataB 0 1 200 1 pF/module
I I I
Cdata-dataB Overall capacitance between Data and DataB 0 1 100 1 pF/module
I I I
= Cg-data + CgdataB + 2 CgData-DataB; by node connected and
/ 0 / / 200 / pF/module
Coverall 2,0 V offset
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.