The Moxa NPort 6400/6600 Series provides secure and high-performance serial-to-Ethernet connectivity for 4, 8, 16, or 32 serial RS-232/422/485 devices. Designed for industrial environments, it supports encryption via TLS and SSH, allows flexible per-port configuration, and ensures maximum compatibility across operating systems and virtual platforms.

The series is equipped with intelligent features like an LCD panel (standard 6600 models), adjustable RS-485 termination resistors, and a 64 KB per-port buffer to prevent data loss during network failures—expandable via SD card.

Key Features:

• 4/8/16/32 serial ports (RS-232/422/485), individually configurable
• Secure operation modes: TLS, SSH, AES-128/256, SNMPv3
• Versatile protocol support: Real COM, TCP/UDP, Secure Pair Connection, Reverse Terminal
• IPv6 ready, Ethernet redundancy via STP/RSTP/Turbo Ring
• Full OS support: Windows, Linux, macOS, UNIX, Android, VMware, CE
• LCD panel and configuration buttons (standard 6600 only)
• Rugged metal housing, industrial EMC immunity

Technical Specifications:

Serial Interface:

• Ports: 4 (NPort 6450), 8/16/32 (NPort 6600)
• Connector: DB9 (6450), 8-pin RJ45 (6600)
• Standards: RS-232, RS-422, RS-485 (selectable)
• Baudrate: 50 bps – 921.6 kbps (including non-standard)

Networking:

• 1x 10/100BaseT(X) RJ45 with 1.5 kV isolation
• Expandable via NM modules (RJ45 or fiber)
• IPv4/IPv6, DHCP, DNS, HTTP(S), Telnet/SSH

Security:

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

Additional Features:

• SD card slot (up to 32 GB)
• Internal 64 KB port buffer per channel
• Adjustable RS-485 termination/pull-up/pull-down (DIP switches)
• Console access via Web, Telnet, SSH, DSU, MCC, CLI

Physical Characteristics:

• Housing: Metal, rack-mountable (6600), DIN/wall-mount (6450)
• Dimensions (6600): 440 x 195 x 44 mm (without ears)
• Weight: up to 3.6 kg (6600-32)
• Operating Temp: 0–55 °C (standard), -40–85 °C (-HV models)
• Humidity: 5–95% (non-condensing)

Certifications:

• EMC: IEC 61000-4-x, CISPR 32, FCC Part 15B
• Safety: UL 60950-1, NEMA TS2
• Environmental: RoHS, CRoHS, WEEE, MTBF up to 850,000 hours

Package Contents:

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