Product Description

Phoenix PSM-ME-RS232/RS485-P

The Phoenix Contact PSM-ME-RS232/RS485-P (Part No. 2744416) is a versatile interface converter designed for seamless communication between RS-232 (V.24) devices and RS-422 (V.11) or RS-485 (2-wire) networks. It features robust 3-way electrical isolation between the interfaces and the power supply, ensuring signal integrity and protecting connected equipment. This DIN rail-mountable converter supports a wide range of transmission speeds and includes integrated surge protection and switchable termination resistors, making it suitable for various industrial automation and control applications requiring reliable serial data transmission over extended distances or in multi-drop configurations.

Technical Specifications:

Product Type: Interface converter
Supply Voltage Range: 18 V DC … 30 V DC (24 V DC nominal)
RS-232 Interface: D-SUB 9 connector, female
RS-422/RS-485 Interface: Pluggable screw connection
Supported Protocols: RS-485 (2-wire), RS-422 (4-wire)
Transmission Speed: 4.8 kbps to 115.2 kbps
Maximum Transmission Length (RS-422/RS-485): ≤ 1200 m
Maximum Transmission Length (RS-232): ≤ 15 m
Electrical Isolation: 3-way (Input/Output/Supply), 1.5 kV test voltage (50 Hz, 1 min.)
Surge Protection: Integrated transient protection
Termination Resistor: Integrated, switchable via DIP switch
Mounting Type: DIN rail mounting (NS 35)
Operating Temperature: -20 °C to +60 °C
Storage Temperature: -40 °C to +85 °C
Dimensions (W x H x D): 22.5 mm x 99 mm x 114.5 mm
Degree of Protection: IP20
Housing Material: Polyamide PA, non-reinforced
Standards/Approvals: CE-compliant, EMC Directive 2014/30/EU, RoHS Directive 2011/65/EU