Moxa Technologies NPort IA5150A User Manual

NPort IA5150A/IA5250A Series Web Console Configuration
5-27
Dial-in
The NPort IA5150A/IA5250A listens for a TCP/IP connection request from the remote Ethernet modem or host.
NPort IA5150A/IA5250A’s response depends on the ATS0 value, as outlined below.
ATS0=0 (default):
The NPort IA5150A/IA5250A will temporarily accept the TCP connection and then send the “RING” signal out
through the serial port. The serial controller must reply with “ATA” within 2.5 seconds to accept the connection
request, after which NPort IA5150A/IA5250A enters data mode. If no “ATA” command is received, NPort
IA5150A/IA5250A will disconnect after sending three “RING” signals.
ATS0
≧ 1:
The NPort IA5150A/IA5250A will accept the TCP connection immediately and then send the “CONNECT <baud>”
command to the serial port, in which <baud> represents the baudrate of the NPort IA5150A/IA5250A’s serial
port. After that, the NPort IA5150A/IA5250A immediately enters data mode.
Dial-out
The NPort IA5150A/IA5250A accepts the AT command “ATD <IP>:<TCP port>” from the serial port and then
requests a TCP connection from the remote Ethernet Modem or PC. This is where <IP> is the IP address of the
remote Ethernet modem or PC, and <TCP port> is the TCP port number of the remote Ethernet modem or PC.
Once the remote unit accepts this TCP connection, the NPort IA5150A/IA5250A will send out the “CONNECT
<baud>” signal via the serial port and then enter data mode.
Disconnection request from local site
When the NPort IA5150A/IA5250A is in data mode, the user can drive the DTR signal to OFF, or send “+++”
from the local serial port to the NPort IA5150A/IA5250A. The NPort IA5150A/IA5250A will enter command
mode and return “NO CARRIER” via the serial port, and then input “ATH” to shut down the TCP connection after
1 second.
NOTE
The “+++” command cannot be divided. The “+” character can be changed in register S2, and the guard time,
which prefixes and suffixes the “+++” in order to protect the raw data, can be changed in register S12.
After the TCP connection has been shut down by the remote Ethernet modem or PC, the NPort
IA5150A/IA5250A will send the “NO CARRIER” signal via the serial port and then return to command mode.
AT Commands
The NPort IA5150A/IA5250A supports the following common AT commands used with a typical modem:
No. AT command Description Remarks
1 ATA Answer manually
2 ATD <IP>:<Port> Dial up the IP address: Port No.
3 ATE ATE0=Echo OFF
ATE1=Echo ON (default)
4 ATH ATH0=On-hook (default)
ATH1=Off-hook
5 ATI, ATI0, ATI1, ATI2 Modem version reply “OK” only
6 ATL Speaker volume option reply “OK” only
7 ATM Speaker control option reply “OK” only
8 ATO On line command
9 ATP, ATT Set Pulse/Tone Dialing mode reply “OK” only
10 ATQ0, ATQ1 Quiet command (default=ATQ0)
11 ATSr=n Change the contents of S register See “S registers”
12 ATSr? Read the contents of S register See “S registers”
13 ATV Result code type
ATV0 for digit code
ATV1 for text code
0=OK

Moxa Technologies NPort IA5150A Specifications

General

Isolation	1.5 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)	0 - 60 °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