The Digi PortServer TS 4 H MEI is a rugged serial server that bridges legacy serial devices to modern Ethernet networks. It connects up to four serial devices via RS-232/422/485 interfaces and delivers serial-to-IP connectivity in demanding industrial, transportation, and utility environments. The device operates across extended temperature ranges with conformal coating for moisture and corrosion protection, enabling reliable operation in harsh outdoor and remote locations.
Technical Specifications
Serial Interfaces
• 4 x RS-232/422/485 ports with RJ-45 connectors
• Switch-selectable RS-232/422/485 on all ports
• Up to 230 Kbps throughput per port
• Full signal support: TXD, RXD, RTS, CTS, DTR, DSR, DCD
Ethernet & Networking
• 1 x 10/100Base-T RJ-45 port (auto-sensing, full or half duplex)
• IP protocols: UDP/TCP, Telnet, Extended Telnet (RFC 2217), PPP, Reverse Telnet, Reverse SSH
• Protocol conversion: Modbus to Modbus/TCP
• IP addressing: DHCP, RARP, ARP-Ping
Power & Environmental
• Input: 9–30 VDC
• Consumption: 4 W typical, 6 W maximum
• Operating temperature: −35°C to +74°C
• Storage temperature: −40°C to +85°C
• Humidity: 5% to 95% non-condensing
• Surge protection: 4 kV burst (EFT) per EN61000-4-4; 2 kV surge per EN61000-4-5
• Certifications: NEMA TS 2, Class 1 Div 2
Physical
• Dimensions: 5.25 × 3.33 × 0.95 in (13.34 × 8.46 × 2.42 cm)
• Weight: 2.25 oz (64 g)
– Key Features
• Patented RealPort® device-initiated COM/TTY port redirector eliminates software modification requirements
• RealPort® encryption and authentication on supported operating systems
• HTTP/HTTPS and CLI management interfaces
• SNMP (read/write) support with Digi Port Authority remote diagnostics and auto-discovery
• SSH v2 and SSL/TLS security
• Conformal-coated circuit board for moisture and corrosion resistance
– Compatibility & Integration
RealPort® supports AIX, HP-UX, Linux, SCO OpenServer 5/6, Solaris (Intel/SPARC), Windows XP, Windows Server 2003, Windows 7/8/8.1/10, and Windows Server 2012/2016/2019.
– Typical Applications
Industrial automation, transportation systems, utility management, and remote monitoring where legacy serial equipment must integrate with IP networks in temperature-extreme or corrosive environments.
