NPort 6600-G2 Series

2nd Gen 8/16/32-port RS-232/422/485 secure terminal servers

moxa-nport-6600-g2-series-image-1-(1).jpg | Moxa

moxa-nport-6600-g2-series-image-2-(1).jpg | Moxa

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moxa-nport-6600-g2-series-image-6-(1).jpg | Moxa

Features and Benefits

Data encryption with secure operation modes for Real COM, TCP Server, TCP Client, Pair Connection, Terminal, and Reverse Terminal
Secure Boot only allows Moxa-authorized firmware to run on devices
One-click log collection and application analysis for easy troubleshooting
Easy RS-485 configuration of serial interfaces with software-adjustable pull high/low resistor and terminator
Supports SSL certificate signing by RSA-4096 / ECC-521
IEC 62443-4-2 Security Level 2 certified

Certifications

You can track updates for your followed products in My Moxa

Preliminary

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Introduction

Moxa has leveraged the IEC 62443-4-1 secure development life-cycle process to develop a new generation of NPort G2 secure terminal servers. In addition, the NPort 6600-G2 Series secure terminal servers are also IEC 62443-4-2 Security Level 2 certified, enabling secure connections for your legacy serial devices to industrial networks. User experience is enhanced based on Moxa’s 35 years of experience in the serial-connectivity field by providing versatile installation means for different space requirements and an easy-to-use troubleshooting tool for maintenance.

Secure Data Transmission

For many applications, guaranteeing secure data transmission is an important concern when connecting serial devices to a network. To answer this concern, the NPort® 6600-G2 secure terminal servers support the TLS and SSH protocols, which work by encrypting data before sending it over the network. With the NPort® 6600-G2, you can be rest assured that serial data is transmitted securely over both private and public networks.

One-click Logs and Application Analysis for Easy Troubleshooting

During the deployment stage, system integrators must connect devices and ensure the communication is smooth. They may encounter issues and will require tools to troubleshoot issues. Moxa provides a application analyzer that generates a report at the click of a button to help the system integrator easily identify potential issues and understand how to resolve them.

At the maintenance stage, system errors may require you to call for help. Device vendors might take a long time to troubleshoot issues because they need to collect information and then hold discussions with the technical support team. The NPort 6600-G2 comes with a one-click log collection function, which can provide all the data that a technical support team needs to quickly troubleshoot system issues.

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SD Slot

microSD card
Up to 2 TB (high speed, 25 Mbps)

10/100/1000BaseT(X) Ports (RJ45 connector)

2 ports (up to 4), Auto MDI/MDI-X connection
Magnetic Isolation Protection

1.5 kV (built-in)

Configuration Options

Web Console (HTTP/HTTPS), Windows Utility, Device Search Utility (DSU), MCC Tool, Serial Console
Management

ARP, DHCP Client, DNS, HTTPS, ICMP, IPv4/IPv6, SMTP, SMTPS, SNMPv1/v2c/v3, SNTP, TCP/IP, UDP, WINS
Windows Real COM Drivers

Windows 11, 10, 8.1, 8, and 7
Windows Server 2022, 2019, 2016, 2012 R2, 2012, and 2008 R2
Linux Real TTY Drivers

Kernel versions 6.x, 5.x, and 4.x
Fixed TTY Drivers

macOS versions: 14, 13, 12, and 11
Arm®-based Platform Support

Windows 11
Linux kernel 6.x, 5.x, and 4.x
macOS 14, 13, 12, and 11
Virtual Machine

VMWare ESXi (Windows 11/10/8.1/8/7 & Linux 6.x, 5.x, and 4.x)
VMware Fusion (Windows on macOS 14, 13, 12, and 11)
Parallels Desktop (Windows on macOS 14, 13, 12, and 11)
Time Management

SNTP Client
MIB

MIB-II, RFC1213, RFC1317, Private MIB
Unicast Routing

RIPV1/V2, Static Route

Root of Trust

Secure Boot, True Random Number Generator (TRNG), Security Screws
Authentication

Local database, RADIUS, TACACS+
Security Protocols

HTTPS (TLS 1.2/1.3), SNMPv3, SSHv2
Encryption

HTTPS: ECC-256, ECC-384, ECC-521, RSA-1024, RSA-2048, RSA-3072, RSA-4096, AES-128, AES-256, CHACHA20, SHA-256, SHA-384, HMAC

SSH: ECC-256, ECC-384, ECC-521, RSA-2048, AES-128, AES-256, SHA-256, SHA-384, HMAC

SNMPv3: AES-128, SHA-256, SHA-384

Secure OP mode: HTTPS: ECC-256, ECC-384, ECC-521, RSA-1024, RSA-2048, RSA-3072, RSA-4096, AES-128, AES-256, CHACHA20, SHA-256, SHA-384, HMAC

Config import/export: AES-256, SHA-256, HMAC

No. of Ports

NPort 6610/6650-8-G2 models: 8
NPort 6610/6650-16-G2 models: 16
NPort 6610/6650-32-G2 models: 32
Connector

8-pin RJ45
Serial Standards

NPort 6610-G2 models: RS-232
NPort 6650-G2 models: RS-232, RS-422, RS-485
Secure Operation Modes

Reverse SSH, Secure Pair Connection, Secure Real COM, Secure TCP Client, Secure TCP Server, SSH, Secure Redundant COM, Secure Reverse Real COM
Standard Operation Modes

Disabled, Pair Connection, SLIP, PPP, Real COM, Reverse Terminal, RFC2217, TCP Client, TCP Server, Terminal, UDP, Redundant COM, Reverse Real COM
Baudrate

50 bps to 921.6 kbps (supports non-standard baudrates)
Data Bits

5, 6, 7, 8
Stop Bits

1, 1.5, 2
Flow Control

None, RTS/CTS, DTR/DSR, RTS Toggle, XON/XOFF
Parity

None, Even, Odd, Space, Mark
RS-485 Data Direction Control

Automatic Data Direction Control (ADDC)
Terminator for RS-485

120 ohms, (software–configurable)
Pull High/Low Resistor for RS-485

1 kilo-ohm, 150 kilo-ohms, (software–configurable)

RS-232

TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422

Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w

Data+, Data-, GND
RS-485-4w

Tx+, Tx-, Rx+, Rx-, GND

Input Current

NPort 6610-G2/6650-G2 models: 320 mA (max.)
NPort 6650I-G2 models: 330 mA (max.)
NPort 6650-48V-G2 models: 340 mA (max.)
Input Voltage

AC models: 100 to 240 VAC, 50 to 60 Hz
DC models: ±48 VDC (20 to 72 VDC, -20 to -72 VDC)

Automatic Reboot Trigger

Built-in WDT
Alert Tools

Built-in buzzer and RTC (real-time clock)

Housing

Metal
Dimensions (with ears)

440 x 200 x 43.65 mm (17.32 x 7.87 x 1.72 in)
Weight

NPort 6610/6650-32-2AC-G2: 2.80 kg (6.17 lb)
NPort 6650I-16-2AC-G2: 2.80 kg (6.17 lb)
NPort 6610/6650-32-48V-G2: 2.62 kg (5.78 lb)
Installation

Desktop, Rack mounting

Operating Temperature

Standard models: -10 to 60°C (14 to 140°F)
Wide temp. models: -40 to 75°C (-40 to 167°F)
Storage Temperature (package included)

-40 to 75°C (-40 to 167°F)
Ambient Relative Humidity

5 to 95% (non-condensing)

EMC

EN 55032/35
EMI

CISPR 32, FCC Part 15B Class A
EMS

IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV, IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m, IEC 61000-4-4 EFT: Power: 1 kV(AC), 0.5 kV(DC); Signal: 0.5 kV, IEC 61000-4-5 Surge: Power: 1 kV(AC), 0.5 kV(DC); Signal: 0.5 kV, IEC 61000-4-6 CS: 3 V, IEC 61000-4-8 PFMF, IEC 61000-4-11
Traffic Control

NEMA TS2
Safety

IEC 62368-1, UL 62368-1, EN 62368-1
Vibration

IEC 60068-2-6
Package Drop Test

ISTA 1A

Green Product

RoHS, CRoHS, WEEE

Time

NPort 6610-8-G2: 29,613 hrs
NPort 6610-16-G2: 29,517 hrs
NPort 6610-32-G2: 29,045 hrs
NPort 6650-8-G2: 29,515 hrs
NPort 6650-16-G2: 29,321 hrs
NPort 6650-32-G2: 29,045 hrs
NPort 6650-8-G2-T: 1,860,004 hrs
NPort 6650-16-G2-T: 1,314,137 hrs
NPort 6650-32-G2-T: 921,748 hrs
NPort 6610-8-2AC-G2: 29,612 hrs
NPort 6610-16-2AC-G2: 29,515 hrs
NPort 6610-32-2AC-G2: 29,429 hrs
NPort 6650-8-2AC-G2: 29,514 hrs
NPort 6650-16-2AC-G2: 29,321 hrs
NPort 6650-32-2AC-G2: 29,045 hrs
NPort 6650I-8-G2: 29,446 hrs
NPort 6650I-16-G2: 29,185 hrs
NPort 6650I-8-G2-T: 1,620,368 hrs
NPort 6650I-16-G2-T: 1,086,881 hrs
NPort 6650I-8-2AC-G2: 29,445 hrs
NPort 6650I-16-2AC-G2: 29,184 hrs
NPort 6650I-8-2AC-G2-T: 1,618,109 hrs
NPort 6650I-16-2AC-G2-T: 1,085,864 hrs
NPort 6650-8-2AC-G2-T: 1,857,027 hrs
NPort 6650-16-2AC-G2-T: 1,312,651 hrs
NPort 6650-32-2AC-G2-T: 921,017 hrs
NPort 6650-8-48V-G2: 29,514 hrs
NPort 6650-16-48V-G2: 29,321 hrs
NPort 6650-32-48V-G2: 29,045 hrs
Standards

Telcordia Standard SR-332, Telcordia SR-332 Issue 4

Warranty Period

5 years
Details

See www.moxa.com/warranty

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Support Documents

Name	Type	Version	Release Date
Datasheet for NPort 6600-G2 Series 354.8 KB	Datasheet	v1.0	Jan 05, 2026 Jan 05, 2026

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