Source note · POTS line replacement and copper retirement
According to NEII, ASME A17.1-2019 requirement 2.27.1 adds the ability for authorized personnel to query passengers by visual messages and receive non-verbal responses, and to initiate in-car notifications.
Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- elevator-emergency-communication
- Deployment
- elevator
- Region
- us
- Release range
- 2019 edition onward where adopted
- Checked
- 2026-10-02
Sources
- Elevator Emergency Communications — National Elevator Industry, Inc. · tier 3 vendor-maintained repositories · 2019 edition enhancements list, items 2-3
Cite this note
APA
WarmTransfer. (2026, October 2). POTS line replacement and copper retirement: source note pots-line-replacement-a17-2019-visual-msgs. WarmTransfer. https://warmtransfer.net/knowledge/claims/pots-line-replacement-a17-2019-visual-msgs
BibTeX
@misc{warmtransfer-claim-pots-line-replacement-a17-2019-visual-msgs,
title = {POTS line replacement and copper retirement: source note pots-line-replacement-a17-2019-visual-msgs},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/pots-line-replacement-a17-2019-visual-msgs},
note = {Source note pots-line-replacement-a17-2019-visual-msgs, checked 2026-10-02}
}