General InformationThese port-powered RS-232 to 422/485 converters change TD and RD RS-232 lines to 422/485 signals. All of our serial port converters feature Automatic Send Data Control. SDC automatically enables the RS-485 driver when data is present on the RS-232 side. Control of the driver is automatic at rates up to 115.2 kbps.Technical InformationAdapter Type: SerialConnector on First End: 1 x 9-pin DB-9 Female RS-232 SerialConnector on Second End: 1 x 9-pin DB-9 Female RS-485 SerialPhysical CharacteristicsHeight: 4.5"Width: 3"Weight (Approximate): 1.60 ozMiscellaneousCertifications & Standards: CE EN 55022 EN 61000-6-1 EN 61000-4-2 EN 61000-4-3 EN 61000-4-4 EN 61000-4-5 EN 61000-4-6 EN 61000-4-8 EN 61000-4-11 Environmentally Friendly: YesEnvironmental Certification: RoHSCountry of Origin: United StatesWarrantyLimited Warranty: Lifetime