Moxa Technologies NPort 6450, NPort 6250, NPort 6250-M-SC, NPort 6250-S-SC, NPort 6610-16 Brochure & Specs

Total Solutions for Industrial Device Networking

Secure Terminal

Servers/Terminal

Servers

4

Terminal Servers

Terminal Server Tutorial

4-2

Terminal Server Selection Guide

4-7

Secure Terminal Servers

NPort 6150 1-port Secure Terminal Server 4-13
NPort 6250 Series 2-port Secure Terminal Server 4-15
NPort 6450 4-port Secure Terminal Server 4-17

Terminal Servers

NPort 6600 Series 8, 16, and 32-port RS-232/422/485 Rackmount 4-19
CN2510 Series 8 and 16-port RS-232 Terminal Server

4-23

CN2610 Series 8 and 16-port Dual LAN RS-232 Terminal Server 4-26

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Secure Terminal Servers/Terminal Servers

Secure Ter minal Server/Terminal Server

The Difference Between Device Servers,
Terminal Servers, and Console Servers

4

The terms “terminal server,” “device server,” and “console server”
can be confusing. They all refer to hardware that connects to RS-232
devices and transmits serial data using TCP/IP Telnet, SSH, or a
vendor-specific protocol. In fact, these three server types represent the
evolution of user demand for information technologies.

Terminal servers were first introduced to help engineers connect
so-called "dumb terminals" to a host computer over an Ethernet
connection. With terminal servers, data transmission is text based and
is transmitted using Telnet, TCP/IP, SSH, or some other manufacturer­defined protocol. Terminal servers are designed to enable users
to access front-end IT equipment using PPP or dial-in/dial-out,

without using a modem. Terminal servers are generally found in IT
environments such as data centers, airports, and banks.

Before the development of Ethernet technology, terminal servers were
used to provide access to data using dial-up connections. However, as
Ethernet became more common, demand for industrial applications
also grew. Most machine-to-machine communication is serial-based,
which is effective only over short distances. This makes it difficult to
manage all equipment from a central location, which is the foundation
of industrial automation. Device servers emerged as a result.

A device server is essentially a simplified terminal server. For industrial
applications, serial-to-Ethernet communication does not require
sophisticated functionality. Device server manufacturers typically
include drivers or COM mapping functions that make things easier for
engineers who are not familiar with IT concepts. With drivers installed,

serial devices can be controlled over Ethernet using legacy software,
without requiring knowledge of difficult TCP/IP routing techniques
or socket programming. Engineers can continue relying on their
knowledge of COM/TTY port programming for device control.

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Secure Terminal Servers/Terminal Servers

Terminal Server Device Server Console Server

RS-232 Interface

** *

**

RS-422/485 Interface

** *

***

4 or fewer ports

** *

**

8 or more ports

*

**

*

DC 48V Input

* ***

*

Dual Power Inputs

* ***

*

OS Driver Support

** *

***

Central Management Utility

** **

*

Assign IP to Serial Port

** ***

*

Data Security

* ***

*

User Identification

** ***

*

User Authorization

** ***

*

Dial-up Service

* ***

*

PPPoE

** **

**

Break-safe

** ***

*

***

Very Important

**

Important

*

Less Important

4

As IT infrastructures quickly expanded, the "console server" or "serial
console server" developed as a management tool. Corporate MIS
decision-makers originally adapted terminal servers for use in central
management solutions. However, with the overwhelming adoption of
Ethernet, specific needs emerged for console servers. Management

security became a crucial issue, and console servers began requiring
advanced authentication functions. Moreover, to cope with ever­increasing numbers of servers and routers, utilities and other solutions
have developed to simplify centralized management and reduce the
workload required.

Rquirements for Terminal, Device, and Console Servers

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Secure Terminal Servers/Terminal Servers

Secure Ter minal Server/Terminal Server

4

Overview

Secure Terminal Servers

Network security is a critical issue for certain applications. Security
is especially important when data is transmitted over the Internet,
where it is vulnerable to interception by third parties. NPort 6000
device servers use SSL to implement secure modes for network data
security, including Secure TCP Server, Secure TCP Client, Secure

NPort 6000 device servers provide serial-to-Ethernet connectivity that
is more reliable and more secure. They can connect any serial device
to an Ethernet network using different operation modes such as TCP
Server, TCP Client, UDP, and Pair Connection mode. For applications
that require data security, such as banking, telecom, access control, or

remote site management, secure modes are also available, including
Secure TCP Server, Secure TCP Client, Secure Pair-Connection, and
Secure Real COM mode.

Secure Data Communication with SSL Protocol

Pair Connection, and Secure Real COM modes. The NPort 6000
and included drivers adhere to the SSL standard and automatically
negotiate the encryption key. To prevent hacker attacks, the NPort will
automatically switch from DES/3DES to AES encryption.

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Secure Terminal Servers/Terminal Servers

4

A powerful hardware encryption engine that supports the complete
DES/3DES/AES encryption algorithms is built into the NPort 6000. For
DES and 3DES encryption, the NPort 6000 supports ECB, CBC, CFB,
and OFB modes. For AES encryption, the NPort 6000 supports ECB,
CBC, CFB, OFB, and CTR modes with a 128-bit, 192-bit, or 256-bit key.

Powerful hardware encryption engine reduce
encryption time.

3DES

DES

AES

Unauthorized access is a major concern for system managers. NPort
6000 device servers help control access by supporting IP filtering and
password protection. Extra protection from hackers is also provided by
SSH and SSL. Secure configuration of the NPort 6000 is provided by

opening the web console with a web browser that supports https (e.g.,
Internet Explorer), or by opening the Telnet console using a terminal
emulator that supports SSH (e.g., PuTTY).

Secure Remote Management and Configuration with SSH and SSL

Powerful Hardware Encryption Engine

Power Redundancy with 802.3af PoE (Under Development)

NPort 6000 device servers can act as a PD (Powered Device) in
compliance with the 802.3af POE (Power Over Ethernet) standard.
This means that the NPort 6000 does not require a power adaptor, but
can operate using power supplied by a device acting as a PSE (Power
Sourcing Equipment).

Support for POE can also be used to for power redundancy. When
the power redundancy feature is enabled, the NPort 6000 relies on a
PSE for backup power. If the main power source (i.e., the power cable
or adaptor) fails, the NPort 6000 automatically continues operation
without interruption using power supplied by the PSE.

Powerful encryption engine that
reduces encryption time

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Secure Terminal Servers/Terminal Servers

Secure Ter minal Server/Terminal Server

4

Most device servers support only standard baudrates. However, some
applications require special baudrates, such as 250 Kbps or 500 Kbps.
With NPort 6000 device servers, users can use any baudrate between

50 and 921.k Kbps. The NPort 6000 works flawlessly with all devices
that require special baudrates.

Although more and more devices are now Ethernet-ready, many legacy
devices only provide a serial interface. The main purpose of device
servers is to connect serial devices to Ethernet, allowing engineers to
integrate all devices into an Ethernet environment.

A problem can arise if both Ethernet-ready and legacy serial devices
need to be connected from the same location. The NPort 6450 and
6650 can use the Ethernet expansion module to add additional
Ethernet ports, effectively allowing operation as a combination Ethernet

switch/device server. With Ethernet expansion modules for the NPort
6450 and 6650, users no longer need to invest in a more expensive
switch or hub to connect every device. Modules are available for
different Ethernet media, including copper Ethernet, multi-mode fiber,
and single-mode fiber. Ethernet expansion modules can also be used
to create a cascading topology where device servers are connected to
each other in a daisy chain.

Any Nonstandard Baudrate Between 50 to 921.6 Kbps

Ethernet Port Expansion (NPort 6450/6650 only)

For mission-critical applications, data collected from a serial device
must be safeguarded if the Ethernet connection is severed. The NPort
6000 provides exceptionally reliable data transmission by saving serial
data to an internal 64 KB port buffer if the Ethernet connection fails.

When the Ethernet is reconnected, data in the buffer is automatically
released and sent to the appropriate destination. For the NPort 6250,
6450, and 6650, this buffer can be expanded by installing an SD card.

Port Buffering that Preserves Data if Ethernet Fails

Interchangeable modules for Ethernet expansion

1 RJ45 Ethernet Port

1 fiber Ethernet port

(single or multi mode)

2 fiber Ethernet ports

(single or multi mode)

1 DB25 printer port

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Secure Terminal Servers/Terminal Servers

4

Device Networking Solutions

NPort 6000 device servers support the Turbo Ring cascade topology. In a Turbo Ring topology, if any segment of the daisy-chained ring is
disconnected, the network will recover in less than 300 ms.

NPort 6000 device servers have an industrial-strength power input
connector to minmize the chance of accidental power disconnection.

With serial devices connected to an NPort 6000 device server,
users can use any networked computer to control the devices over
an Ethernet network, intranet, or the Internet. Connections can be
established using different operation modes such as Real COM/TTY,

TCP Server, or TCP Client mode. The NPort 6000 also supports PPPoE
for ADSL connections, and DDNS can be used to help locate NPort
6000 device servers on the network. In addition, fiber optic models are
available to extend the Ethernet connection distance.

Ethernet Ring Topology with Fast Recovery (under development)

Supports ADSL Dial-up and DDNS

Reliable Power Input

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Secure Terminal Servers/Terminal Servers

Secure Ter minal Server/Terminal Server

Model Name NPort 6150 NPort 6250 NPort 6250-M-SC

LAN

10/100M Ethernet 1 1

---

100M Fiber

--- ---

Multi-Mode

Connector RJ45 RJ45 SC
Extension Slot

--- --- ---

10/100BaseT RJ45 Module

--- --- ---

Multi Mode SC Connector Module

--- --- ---

Single Mode SC Connector Module

--- --- ---

Parallel Port Module

--- --- ---

Power Over Ethernet (IEEE802.3af)

Under development Under development Under development

1.5 KV Magnetic Isolation

√ √ √

Serial Interface

RS-232/422/485

1 port, DB9 (Male) 2 port, DB9 (Male) 2 port, DB9 (Male)

Speed 50 to 921.6 Kbps
Communication Parameters Parity: None, Even, Odd, Space, Mark; Data Bits, 5, 6, 7, 8; Stop Bit(s): 1, 1.5, 2
Flow Control (RTC/CTS/ XON/XOFF)

√ √ √

15 KV ESD Protection

√ √ √

Any Baudrate Support

√ √ √

Patented ADDC

√ √ √

Software Features

Protocols ICMP, IP, TCP, UDP, DHCP, BOOTP, Telnet, Rtelnet, DNS, SNMP, HTTP, SMTP, SNTP, ARP, SSH, SSL
Utilities NPort Driver Manager for Windows 95/98/ME/NT/2000/XP/2003/Vista
OS Driver Support

Windows 95/98/ME/NT/2000/XP/2003/XP x64/2003 x64/Vista x64 COM driver, Linux Real TTY driver, Unix fixed TTY driver

Configuration Web console, serial console, Telnet console, SSH, or Windows utility

Operation Mode

Standard

Real COM, TCP Server, TCP Client, UDP, Pair Connection, RFC2217, Terminal, Reverse Telnet, Ethernet Modem, Printer, PPP, Disabled

Secure Secure Real COM, Secure TCP Server, Secure TCP Client, Secure Pair Connection, SSH, Reverse SSH

Advanced Built-in
Features

HMI LCM display with Four Push Buttons

--- --- ---

Serial Data Log 64 KB 64 KB 64 KB
Offine Port Buffering 64 KB 64 KB 64 KB
SD Card Support

---

---

√

Buzzer

√ √ √

Real-Time Clock

√ √ √

Watch Dog Timer

√ √ √

Power

Power Input 12 to 48 VDC 12 to 48 VDC 12 to 48 VDC
Power Consumption 285 mA 430 mA 430 mA

Mechanical

Upper Casing: Aluminum (1 mm)

√

√ √

External Components: PC (Polycarbonate)

√

√ √

Lower Casing: SECC Sheet Metal (1 mm)

√

√ √

Dimensions (W × H × D)

67 x 28 x 100.4 mm 77 x 28 x 111 mm 77 x 28 x 111 mm

(2.63 x 1.1 x 3.95 in) (3 x 1.1 x4 .37 in)

(3 x 1.1 x 4.37 in)

DIN-Rail/Wall Mountable

√ √ √

Environment

Operating temperature 0 to 55°C (32 to 131°F), 5 to 95% RH
Storage temperature -20 to 85°C (-4 to 185°F), 5 to 95% RH

Regulatory
Approvals

Safety

UL UL60950-1/ TÜV EN60950-1

EMC

FCC Part 15, Subpart B, Class A; CE EN55022 Class A; CE EN55024

EN61000-4-2 (ESD)

4 KV contact

EN61000-4-4 (EFT)

1 KV power

EN61000-4-5 (Surge)

2 KV power

Warranty 5 years

Terminal Server
Selection Guide

4

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Secure Terminal Servers/Terminal Servers

NPort 6250-S-SC NPort 6450 NPort 6610-16

---

1 1

Single Mode

--- ---

SC RJ45 RJ45

---

1 1

---

Optional Optional

---

Optional Optional

---

Optional Optional

---

Optional Optional

---

--- ---

√ √ √

2 ports, DB9 (Male) 4 ports, DB9 (Male) 16 ports, RJ45

50 to 921.6 Kbps

Parity: None, Even, Odd, Space, Mark; Data Bits: 5, 6, 7, 8; Stop Bit(s): 1, 1.5, 2

√ √ √
√ √ √
√ √ √
√ √ √

ICMP, IP, TCP, UDP, DHCP, BOOTP, Telnet, Rtelnet, DNS, SNMP, HTTP, SMTP, SNTP, ARP, SSH, SSL

NPort Driver Manager for Windows 95/98/ME/NT/2000/XP/2003/Vista

Windows 95/98/ME/NT/2000/XP/2003/XP x64/2003 x64/Vista x64 COM driver, Linux Real TTY driver, Unix fixed TTY driver

Web console, serial console, Telnet console, SSH, or Windows utility

Real COM, TCP Server, TCP Client, UDP, Pair Connection, RFC2217, Terminal, Reverse Telnet, Ethernet Modem, Printer, PPP, Disabled

Secure Real COM, Secure TCP Server, Secure TCP Client, Secure Pair Connection, SSH, Reverse SSH

---

√ √

64 KB 64 KB 64 KB
64 KB 64 KB 64 KB

---

---

√
√ √ √
√ √ √
√ √ √

12 to 48 VDC 12 to 48 VDC 100 to 240 VAC, 47 to 63 Hz

430 mA 730 mA mA

√

√ √

√

√ √

√

√ √

77 x 28 x 111 mm 158 x 33 x 103 mm 440 x 44 x 195 mm
(3 x 1.1 x 4.37 in) (6.22 x 1.29 x 4 in) (17.32 x 1.73 x 7.67 in)

√ √ √

0 to 55°C (32 to 131°F), 5 to 95% RH

-20 to 85°C (-4 to 185°F), 5 to 95% RH

-20 to 70°C (-4 to 158°F), 5 to 95% RH

UL UL60950-1/ TÜV EN60950-1

FCC Part 15, Subpart B, Class A; CE EN55022 Class A; CE EN55024

4 KV contact

1 KV power
2 KV power

5 years

Model Name

LAN

10/100M Ethernet
100M Fiber
Connector
Extension Slot
10/100BaseT RJ45 Module
Multi Mode SC Connector Module
Single Mode SC Connector Module
Parallel Port Module
Power Over Ethernet (IEEE802.3af)

1.5 KV Magnetic Isolation

Serial Interface

RS-232/422/485
Speed
Communication Parameters
Flow Control (RTC/CTS/ XON/XOFF)
15 KV ESD Protection
Any Baudrate Support
Patented ADDC

Software Features

Protocols
Utilities
OS Driver Support
Configuration

Operation Mode

Standard
Secure

Advanced Built-in
Features

HMI LCM display with Four Push Buttons
Serial Data Log
Offine Port Buffering
SD Card Support
Buzzer
Real-Time Clock
Watch Dog Timer

Power

Power Input
Power Consumption

Mechanical

Upper Casing: Aluminum (1 mm)
External Components: PC (Polycarbonate)
Lower Casing: SECC Sheet Metal (1 mm)

Dimensions (W × H × D)

DIN-Rail/Wall Mountable

Environment

Operating temperature
Storage temperature

Regulatory
Approvals

Safety
EMC
EN61000-4-2 (ESD)
EN61000-4-4 (EFT)
EN61000-4-5 (Surge)

Warranty

4

IP Systèmes, importateur/distributeur des solutions de communication industrielle MOXA en France Tel : [phone] (15cts/min)