Moxa Technologies NPort IA5150AI-T User Manual

NPort IA5150A/IA5250A Series Choosing the Proper Operation Mode
4-3
ATTENTION
Real COM
Mode allows several hosts to have access control over the same NPort IA5150A/IA5250A. The
driver that comes with your NPort IA5150A/IA5250A controls host access to attached serial
devices by
checking the host’s IP address. Refer to Accessible IP Settings in Chapter 5 for more
details.
RFC2217 Mode
RFC2217 mode is similar to Real COM mode in that a driver is used to establish a transparent connection
between a host computer and a serial device by mapping the serial port on the NPort IA5150A/IA5250A to a
local COM port on the host computer. RFC2217 defines general COM port control options based on the Telnet
protocol. Third party drivers supporting RFC2217 are widely available on the Internet and can be used to
implement Virtual COM mapping to your NPort IA5150A/IA5250A serial port(s).
TCP Server Mode
In TCP Server mode, the NPort IA5150A/IA5250A is
configured with a unique IP:Port address on a
TCP/IP
network. The NPort IA5150A/IA5250A waits
passively to be
contacted by the host computer,
allowing the host computer
to establish a
connection with and get data from the serial
device. This operation mode also supports up to eight
simultaneous connections, so that multiple hosts
can collect
data from the same serial device
—at the same time.
As illustrated in the figure, data transmission
proceeds as
follows:
1. The host requests a connection from the NPort
IA5150A/IA5250A configured for TCP Server Mode.
2. Once the connection is established, data can be
transmitted in both directions—from the host to the
NPort IA5150A/IA5250A, and from the NPort
IA5150A/IA5250A to the host.
TCP Client Mode
In TCP Client mode,
the NPort IA5150A/IA5250Acan actively
establish a TCP connection to a pre
-defined host computer
when serial data arrives.
After the data has been transferred,
the NPort can
automatically disconnect from the host computer
by using
the
TCP alive check time or Inactivity time settings. Refer
to chapter 5 for more details.
As illustrated in the figure, data transmission proceeds as
follows:
1. The NPort IA5150A/IA5250A configured for TCP Client
Mode requests a connection from the host.
2. Once the connection is established, data can be
transmitted in both directions—from the host to the
NPort IA5150A/IA5250A, and from the NPort
IA5150A/IA5250A to the host.

Moxa Technologies NPort IA5150AI-T Specifications

General

Isolation	2 kV
Certification	CE, FCC
Serial interface type	RS-232/422/485
Serial ports quantity	1
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN (RJ-45) ports	2
Supported network protocols	ICMP, IP, TCP, UDP, DHCP, BOOTP, Telnet, Rtelnet, DNS, HTTP, SMTP, SNTP, IGMP
Connectivity LEDs	Yes
Storage temperature (T-T)	-40 - 85 °C
Operating temperature (T-T)	-40 - 75 °C
Operating relative humidity (H-H)	5 - 95 %
Input voltage	12 - 48 V
Safety	UL-508

Weight and Dimensions

Weight	475 g
Dimensions (WxDxH)	36 x 105 x 140 mm