Express Systems will have an EARLY CLOSING Thursday, June 18th, 2026 and will be CLOSED June 19th, 2026 in observance of Juneteenth. We will resume regular business hours Monday, June 22nd, 2026 at 9:00am EST.
The A52 and A53 are general RS-232 to RS-422/485 converters designed for users who need to extend RS-232 transmission distance and increase networking capability.
