The Moxa NPort 6400/6600 Series provides secure and powerful serial-to-Ethernet connectivity for up to 32 serial devices (RS-232/422/485). With encryption via TLS and SSH and IEC 62443-compliant security features, it is ideal for critical industrial communication.

The NPort 6000 ensures uninterrupted data flow with a built-in 64 KB buffer per port that stores serial data during Ethernet outages and automatically releases it once the connection is restored. The 6600 models also feature an LCD panel for easy configuration (standard temperature models only).

This series supports flexible operation modes such as Real COM, TCP Client/Server, UDP, Terminal, Reverse SSH, and more – all with IPv6 support. The 6600 models offer adjustable RS-485 resistors to ensure signal reliability in demanding environments.

Technical Details:

Serial Interfaces:

• Ports: 4/8/16/32 RS-232/422/485
• Connectors: DB9 (NPort 6450), 8-pin RJ45 (NPort 6600)
• Baudrate: 50 bps to 921.6 kbps (including non-standard rates)
• Buffer: 64 KB per port, expandable with SD card (up to 32 GB)

Networking:

• Ethernet: 1x 10/100BaseT(X), Auto-MDI/MDI-X, 1.5 kV isolation
• Expansion: NM modules for RJ45 or 100BaseFX fiber
• Protocols: IPv4/IPv6, TCP/IP, UDP, HTTP/S, SNMPv1/v2c/v3, Telnet, LLDP, PPPoE

Security Features:

• Authentication: Local, RADIUS, TACACS+
• Encryption: AES-128/256, HMAC, RSA-1024, SHA-1/256/384
• Protocols: HTTPS (TLS 1.2), SSHv2, SNMPv3

Configuration & Management:

• Web Console (HTTP/HTTPS), Telnet/SSH, Windows Utility, DSU, MCC Tool
• LCD display (6600 standard models), DIP switches for RS-485 resistor adjustment

Physical Characteristics:

• Housing: Metal
• Dimensions (6600): 440 x 195 x 44 mm (without ears)
• Weight: up to 3.6 kg
• Mounting: Rack (6600), DIN-Rail/Wall/Desktop (6450)

Environmental Limits:

• Operating Temperature: 0 to 55 °C (standard), -40 to 85 °C (HV models)
• Humidity: 5–95% non-condensing

Certifications:

• EMC: EN 55032/35, CISPR 32, FCC Part 15B Class A
• Safety: UL 60950-1, NEMA TS2, RoHS, WEEE
• EMS: IEC 61000-4-x (model dependent)
• MTBF: up to 850,000 hours

Package Contents:

• 1x NPort 6400/6600 Terminal Server
• 2x rack-mounting ears (6600 only)
• 1x DB9 to RJ45 cable (6600 only)
• 1x power adapter or cable (depending on model)
• 1x quick installation guide
• 1x warranty card