The Moxa NPort 6400/6600 Series is a powerful and secure terminal server solution for connecting up to 32 serial devices over Ethernet. Featuring support for RS-232/422/485, TLS/SSH encryption, and IPv6 compatibility, it’s ideal for mission-critical industrial applications.

Standard models are equipped with an intuitive LCD panel for quick IP address configuration. A key highlight is the built-in 64 KB port buffer which stores serial data during network interruptions, ensuring no data loss. Additional expansion is available via SD card (up to 32 GB). Compatibility with Windows, Linux, macOS, Android, and virtual machines makes deployment easy.

Key Features:

• 4, 8, 16 or 32 RS-232/422/485 ports (independently configurable)
• Secure modes: Real COM, TCP Client/Server, Pairing, SSH, HTTPS
• Built-in LCD display for easy configuration (standard models only)
• Ethernet redundancy: STP, RSTP, Turbo Ring
• 64 KB buffer per port for offline data storage (expandable via SD)
• Adjustable DIP resistors for RS-485 ports
• Compatible with Windows, Linux, macOS, Android, VMs
• Complies with IEC 62443, UL 60950-1, NEMA TS2 and more

Technical Specifications:

Serial Interface:

• Standards: RS-232, RS-422, RS-485
• Connectors: DB9 (6450), 8-pin RJ45 (6600)
• Baudrate: 50 bps to 921.6 kbps (supports custom rates)
• Signals: RS-232, RS-422, RS-485-4w, RS-485-2w
• Data bits: 5–8 | Stop bits: 1, 1.5, 2 | Parity: None, Even, Odd, Space, Mark
• Flow control: RTS/CTS, DTR/DSR, XON/XOFF

Networking:

• 1x 10/100BaseT(X) RJ45 port, Auto-MDI/MDI-X, 1.5 kV isolation
• Optional: NM RJ45/fiber modules
• Redundancy: STP, RSTP, Turbo Ring
• Protocols: IPv4/IPv6, HTTPS, SNMPv3, Telnet, DHCP, LLDP, and more

Security:

• Authentication: Local, RADIUS, TACACS+
• Encryption: HTTPS, AES-128/256, HMAC, RSA, SHA
• Operation modes: Secure Real COM, TCP/UDP, SSH, Reverse Telnet/SSH

Memory:

• SD card slot up to 32 GB (SD 2.0)

Power:

• 6450: 12–48 VDC (730 mA)
• 6600: 100–240 VAC, ±48 VDC, or 110 VDC
• Power draw varies (up to 285 mA for 32-port models)

Mechanical:

• Housing: Metal
• Dimensions (6600): 440 x 195 x 44 mm
• Weight (6600-32): 3.6 kg
• Mounting: Rack (6600), DIN/wall/desktop (6450)

Environmental:

• Operating temperature: -40 to +85 °C (depending on model)
• Humidity: 5–95% (non-condensing)

Certifications:

• EMC: IEC 61000, FCC, EN 55032/35
• Safety: UL 60950-1, IEC 60068-2 (vibration/drop)
• Environmental: RoHS, WEEE
• MTBF: up to 850,000 hours (depending on model)

Package Contents:

• 1 x NPort 6400/6600 terminal server
• 2 x rack-mounting ears (6600 models only)
• 1 x DB9 to RJ45 cable (6600 models only)
• 1 x power supply or adapter (model-dependent)
• 1 x quick installation guide
• 1 x warranty card