This article provides informatioin about Part Number E622897, OSD Tethered Remote, which is now obsolete.

E622897 was a tethered remote control that was used on Elo's products prior to 2016. This remote had a round connector that looks similar to a P/S 2 connector and was compatible with legacy monitors including: 1247L, 1537L, 1739L, 1937L, 1938L, 1939L, 2239L, 2240L, 2242L, 2639L, 3200L, 3239L, 4200L, 4600L, 5500L

These remotes are no longer manufactured or sold by Elo Touch Solutions. You may be able to find them online from 3rd party resellers.