NPort 6000 Series Introduction
Overview
The NPort 6000 can be used to connect any serial device to an Ethernet network and supports many different
operation modes. In particular, the NPort 6000 also supports Secure TCP Server, Secure TCP Client, Secure
Pair-Connection, and Secure Real COM modes for security-critical applications, such as banking, telecom,
access control, and remote site management. Moreover, for firmware v1.14 and above, the NPort 6000 series
enhances its security level to comply with industry standard IEC 62443-4-2 at level 2 in the following focused
areas: more secure protocols supported, authentication control, more complex data encryptions, and so on.
The NPort 6000’s Any Baudrate feature, which is based on Moxa’s UART IC, allows the use of nonstandard
baudrates. For example, a baudrate of 500 kbps may be required for some special applications. Many device
servers could only be configured for a baudrate of 460.8 kbps, resulting in an error rate of 7.84%. For serial
communication, the acceptable margin of error is only 3%. The NPort 6000 allows you to configure the
baudrate more accurately, and it can be configured to transmit serial data at the rate of 491.5 kbps. This is only
a 1.7% margin of error, which is well within the acceptable margin for serial data.
For some applications, data must be delivered reliably even if communication is disrupted. The NPort 6000
provides a powerful function to ensure that data is buffered in case of a communication failure. When a
communication failure occurs, the data is stored in the NPort 6000. Upon resumption of communication, the
buffered data will be sent to the destination. The default size of the port buffer is 64 KB for each port. For the
NPort 6610, NPort 6250, NPort 6450, and NPort 6650, users may increase the buffer size by using an external
SD card.
Package Checklist
Each NPort 6000 serial device server is shipped in a separate box, which also includes a number of standard
accessories. In addition, several optional accessories can be ordered separately. When you receive your
shipment, please check the contents of the box carefully and notify your Moxa sales representative if any of the
items are missing or appear to be damaged.
NPort 6610/6650
Six models of the NPort 6610 and eleven models of the NPort 6650 are available:
Model Name Number of Serial Ports Power Requirements
NPort 6610-8 8 RS-232 100 to 240 VAC, power cord
NPort 6610-16 16
NPort 6610-32 32
NPort 6610-8-48V 8 RS-232 ±48 VDC (20 to 72 VDC, -20 to -72 VDC), terminal
block
NPort 6610-16-48V 16
NPort 6610-32-48V 32
NPort 6650-8/
NPort 6650-8-T
8 RS-232/422/485 100 to 240 VAC, power cord
NPort 6650-16/
NPort 6650-16-T
16
NPort 6650-8-48V 8 RS-232/422/485 ±48 VDC (20 to 72 VDC, -20 to -72 VDC), terminal
block
NPort 6650-16-48V 16
NPort 6650-32-48V 32
NPort 6650-8-HV-T 8 RS-232/422/485 88 to 300 VDC terminal block
NPort 6650-16-HV-T 16
NPort 6650-32-HV-T 32
Standard Accessories for the NPort 6610 and NPort 6650
• 1 NPort 6600 device server
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General
Weight and Dimensions
