UN R123 Supplement 10 (01 series) · UNECE Regulation No. 123 (ECE R123) — Uniform provisions concerning the approval of adaptive front-lighting systems (AFS) for motor vehicles.

UN R123 — Supplement 10 to the 01 series of amendments

Supplement 9 → 10

Adopted at the WP.29 183rd sessionEntry into force 2021-09-30

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What changed: The introductory part of Annex 4 now names passing-beam points 25LL, 50V and B50L (or 25RR, 50V and B50R for headlamps designed for left-hand traffic).
In paragraph 1.1.2.2. of Annex 4, the points for Class C passing-beam, and each specified other passing-beam class, now end with “25LL, if applicable” instead of “25RR, if applicable”.
In Example 8 of Annex 2, the driving-beam maximum intensity indicated by the number 30 is now between 123,625 and 145,125 candelas.
Why: The proposal to amend UN Regulation No. 123 corrects a mistake introduced by Supplement 8 to the 01 series of amendments.
The measuring points 25L (for right-hand traffic) and 25R (for left-hand traffic) do not exist in the photometric requirements according to Annex 3.
In Annex 2, the change from 12V to 13.2V was not made in example 8.

Q1What changed3 changes

Passing-beam points in Annex 4 (introductory part and para. 1.1.2.2.)

The introductory part of Annex 4 now names passing-beam points 25LL, 50V and B50L (or 25RR, 50V and B50R for headlamps designed for left-hand traffic). Before this supplement, it named points 25L, 50V and B50L (or R). Paragraph 1.1.2.2. of Annex 4 now lists 50V, B50L, and 25LL, if applicable, for Class C passing-beam, and each specified other passing-beam class. Before this supplement, the list had 25RR instead of 25LL.

Once the photometric values have been measured according to the prescriptions of this Regulation, in the point of Imax for driving beam and in points 25L25LL, 50V and B50L (or R25RR, 50V and B50R for headlamps designed for left-hand traffic), whichever applies for passing beam, a complete system sample shall be tested for stability of photometric performance in operation.

Class C passing-beam, and each specified other passing-beam class: 50V, B50L, and 25RR25LL, if applicable.

Example 8 of Annex 2: driving-beam intensity for the number 30

In Example 8 of Annex 2, the driving-beam maximum intensity indicated by the number 30 is now between 123,625 and 145,125 candelas. Before this supplement, it was between 86,250 and 101,250 candelas. The example now refers to “UN Regulation No. 6” and “UN Regulation No. 7” instead of “Regulation No. 6” and “Regulation No. 7”.

The system bearing the above approval marks meets the requirements of this Regulation (original version of the Regulation) in respect of both a passing-beam for left-hand traffic and a driving-beam with a maximum intensity comprised between 86,250 123,625 and 101,250 145,125 candelas (as indicated by the number 30) grouped with a front direction indicator lamp of category 1a, approved in accordance with the 01 series of amendments of UN Regulation No. 6 and a front position lamp approved in accordance with the 02 series of amendments of UN Regulation No. 7.

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Q2Why it changed

Proposed by: Informal Working Group on Simplification of Lighting and Light-Signalling Regulations
Working party: GRE, 83rd session (October 2020)

Reasons

The proposal to amend UN Regulation No. 123 corrects a mistake introduced by Supplement 8 to the 01 series of amendments. For Annex 2, the maximum intensity for the number 30 should be “between 123,625 and 145,125”. This correction is needed because the change from 12V to 13.2V was not made in example 8.
Sources (2)
“The proposal to amend UN Regulation No. 123 corrects a mistake introduced by Supplement 8 to the 01 series of amendments”
ECE/TRANS/WP.29/GRE/2020/11/Rev.1II. Justification, para. 2
“For Annex 2, the maximum intensity corresponding to the number 30 should be corrected to “between 123,625 and 145,125”. This correction is needed because the modification from 12V to 13.2V was not implemented in example 8.”
ECE/TRANS/WP.29/GRE/2020/11/Rev.1II. Justification, para. 2
The measuring points 25L (for right-hand traffic) and 25R (for left-hand traffic) do not exist in the photometric requirements according to Annex 3.
Source
“For Annex 4, the measuring points 25L (for right-hand traffic) and 25R (for left-hand traffic) do not exist in the photometric requirements according to Annex 3 and have to be corrected to 25LL and 25RR, respectively.”
ECE/TRANS/WP.29/GRE/2020/11/Rev.1II. Justification, para. 2
IWG SLR prepared the corrections after it found errors in UN Regulation No. 149. These errors come from mistakes in the frozen UN Regulations Nos. 98 and 123.
Source
“prepared by the Informal Working Group on Simplification of Lighting and Light-Signalling Regulations (IWG SLR) after having identified errors in UN Regulation No. 149, due to the existing mistakes in frozen UN Regulations Nos. 98 and 123.”
ECE/TRANS/WP.29/GRE/2020/11/Rev.1introduction

Document trail

2020-08RevisedECE/TRANS/WP.29/GRE/2020/11/Rev.1Revised proposal for corrections by IWG SLR
—Working party adoptsECE/TRANS/WP.29/GRE/83GRE session report, para. 42
2020-12Sent to WP.29ECE/TRANS/WP.29/2021/43Text that GRE sent to WP.29 and AC.1
2021-03WP.29 adoptsECE/TRANS/WP.29/1157Adopted at the 183rd session (session report, para. 137)
2021-09-30In forceC.N.340.2021.TREATIES-XI.B.16.123UN depositary notification

Q3Who is affected

Vehicle manufacturer

No direct action for this role.

Component supplier

Be ready for photometric tests at 25LL, if applicable, for Class C passing-beam and each specified other passing-beam class.

Technical service / Approval authority

Check that the photometric test uses 25LL, if applicable, for Class C passing-beam and each specified other passing-beam class.

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