The Moxa NPort 6400/6600 Series offers robust and secure terminal servers for connecting up to 32 serial devices to Ethernet networks. Supporting RS-232, RS-422, and RS-485 interfaces, these devices are ideal for mission-critical industrial applications requiring encrypted communication, flexible deployment, and protocol versatility.

The 6600 models feature an LCD display with push buttons for quick configuration (standard temperature models only). Data security is ensured via TLS/SSH encryption compliant with IEC 62443. A 64 KB buffer per port guarantees no data loss during network interruptions, and additional buffer can be added using an SD card.

Features:

• Available in 4, 8, 16, or 32 port versions
• Supports RS-232/422/485 on each port independently
• Security: TLS 1.2, SSHv2, AES-128/256, RADIUS, TACACS+
• IPv6 and Ethernet redundancy via NM expansion modules
• Configuration via Web, SSH, MCC Tool, or LCD (standard models)
• SD slot for buffer expansion (up to 32 GB)

Technical Specifications:

Serial Communication:

• Ports: 4 to 32 via DB9 (6450) or RJ45 (6600)
• Baudrate: 50 bps to 921.6 kbps
• Signal types: RS-232, RS-422, RS-485 (2- and 4-wire)
• RS-485 resistor settings via DIP switches (6600)

Networking:

• 1x 10/100BaseT(X) RJ45 with 1.5 kV isolation
• Protocols: IPv4/6, TCP/IP, DHCP, DNS, SNMP, HTTP(S), UDP, LLDP

Software:

• Operation Modes: Real COM, TCP/UDP Server/Client, Reverse SSH/Telnet, RFC2217
• OS Support: Windows 95–11, Server 2003–2022, Linux (2.4–6.x), macOS 10.12–11.x, various UNIX flavors, Android 3.1+

Security:

• Auth: Local, RADIUS, TACACS+
• Encryption: AES, HMAC, RSA, SHA
• Secure protocols: HTTPS, SSH, SNMPv3

Power Supply:

• NPort 6450: 12–48 VDC
• NPort 6600:
• AC Models: 100–240 VAC
• -48V Models: ±48 VDC (20–72 VDC)
• -HV Models: 88–300 VDC

Housing and Mounting:

• Metal housing
• 6450: Desktop, wall, or DIN-rail mount
• 6600: Rack-mountable (ears included)

Dimensions:

• NPort 6450: 158 x 103 x 35 mm (without ears)
• NPort 6600: 440 x 195 x 44 mm (without ears)

Temperature Ranges:

• Standard: 0 to 55 °C
• -T Models: -40 to 75 °C
• -HV Models: -40 to 85 °C

Certifications:

• EMC: EN 55032/35, FCC, IEC 61000 series
• Safety: UL 60950-1, NEMA TS2
• Green: RoHS, CRoHS, WEEE

MTBF (per model):

• Up to 850,000 hours (Telcordia standard)

Package Contents:

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