Moxa NPort 6150 1-Port Secure Terminal Server

Secure serial-to-Ethernet with TLS and SSH

The Moxa NPort 6150 is a one-port secure terminal server. Its 3-in-1 serial port supports RS-232, RS-422 and RS-485 selected from a configuration menu, and secure operation modes (Secure Real COM, Secure TCP Server, Secure TCP Client, Secure Pair Connection, SSH and Reverse SSH) encrypt serial data with TLS and SSH before it crosses the network. Remote configuration uses HTTPS and SSH, authentication can use a local database, RADIUS or TACACS+, and Moxa states that the security features are based on IEC 62443. It supports IPv6, non-standard baud rates and generic serial commands in Command-by-Command mode, making it suitable for serial equipment on networks that carry sensitive operational data.

Technical specifications

NPort 6100/6200 models

Selection notes

Pick the 6150 for a single device that must be reachable securely. The two-port 6250 adds a 64 KB port buffer that holds serial data during an Ethernet outage and can be expanded by SD card; the 6150 has no SD slot. Standard models include a regional power adapter and the -T models do not. If encryption is not required, a lower-cost unit such as the NPort 5110A is adequate. Seven Star LLC, an independent supplier in Muscat, quotes the exact model; check the temperature range and secure-mode needs of your project before ordering. The Moxa datasheet (version 1.5) is attached, and related products are listed under Industrial Communications. Plan the security design first: decide whether to use SSH or TLS secure modes end to end, which hosts need the matching Real COM driver or secure client, and whether RADIUS or TACACS+ will be used for logins. Moxa lists IEC 62443-based features, but it does not state a certification level for this product in the datasheet, so ask for the compliance statement if your project specification requires one. Moxa lists support for RIP v1/v2 and static routes, which can help when the terminal server sits on a separate subnet, as well as PPPoE and PPP for dial-up style access. Generic serial commands are supported in Command-by-Command mode. The two-port NPort 6250 adds a 64 KB buffer that holds serial data during an Ethernet outage; the 6150 is the simpler single-port choice. The series carries a NEMA TS2 traffic-control rating.

How the Moxa NPort 6150 works

The NPort 6150 sits between a serial device and an Ethernet network. It takes the serial data, wraps it in network packets and sends it to a host. In the secure modes, the data is encrypted with TLS or SSH first. A driver on the host can show the serial port as a normal COM port.

Where the NPort 6150 is used

• Serial meters and analyzers
• PLCs with serial ports
• Traffic and transport equipment
• Remote access to serial consoles
• Networks that carry sensitive operational data

Selection checklist for the NPort 6150

• Serial interface, RS-232, RS-422 or RS-485
• Operation mode needed
• Need for encryption
• Authentication method
• Operating temperature range
• Power supply voltage
• Mounting style
• Number of serial ports

Installation, commissioning and maintenance notes for the NPort 6150

Connect the serial device to the DB9 port and the network to the RJ45 port. Power the unit from 12 to 48 VDC. Set the serial interface and the operation mode from the web console. Test the link from the host. Back up the configuration file.

Requesting a quotation for the Moxa NPort 6150

Please send the serial interface, the temperature range and the mounting style. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

NPort 6150 serial port

It has one RS-232, RS-422 or RS-485 port on a DB9 male connector.

NPort 6150 Ethernet port

It has one 10/100BaseT(X) RJ45 port.

NPort 6150 baud rate

The baud rate runs from 50 bps to 921.6 kbps.

NPort 6150 secure modes

Secure modes include Secure Real COM, Secure TCP Server and Secure TCP Client.

NPort 6150 SSH modes

It also offers SSH and Reverse SSH.

NPort 6150 remote configuration

Remote configuration uses HTTPS and SSH.

NPort 6150 authentication

Authentication can use a local database, RADIUS or TACACS+.

NPort 6150 IPv6

It supports IPv6.

NPort 6150 power

It runs on 12 to 48 VDC.

NPort 6150 housing

The housing is metal and weighs 190 g.

NPort 6150 mounting

It can be mounted on a desktop, on a wall or on a DIN rail with an optional kit.

NPort 6150 temperature range

The standard model works from 0 to 55 degrees C, and the T model from minus 40 to plus 75 degrees C.

Network records for the NPort 6150

Record the IP address, the serial settings and the firmware version of each unit.

Choosing the right NPort 6150 mode

Choose a secure mode where the serial data crosses a network that others can reach.