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P/N: 1802002112401
NPort DE-211
Quick Installation Guide
Seventh Edition, May 2011
Overview
Welcome to Moxa’s NPort Express DE-211, a compact palm-size d
data communication device that allows you to control
RS-232/422/485 s erial devices ov er a TCP/IP base d Ethernet
network.
Package Checklist
Before installin g the NPort Express DE-211, ver ify that the
package contains the following items:
• 1 NPort Express DE-211
• NPort DE -211 quick installation guide
• Documentation and software CD
• Warranty card
Optional Accesso ries
• NP21101: RS-232 cable: DB25 (M) to DB9 (F), 30 cm
• NP21102: RS-232 cable: DB25 (M) to DB9 (M), 30 cm
• NP21103: DB25 Termin al Block Kit for RS-422/485
• DK-35A: DIN-Rail Moun ting Kit (35 mm)
Notify your sales representative if any of the above items are
missing or damaged.
Hardware Introduction
The NPort DE-211 device server has one female DB25 serial port.
The four DIP switches located on the rear panel are used to select
RS-232 COM mode, and one of four data modes: RS-232, RS-422,
4-wire RS-485, and 2-wire RS-485. See the “DIP Switch Settings
and Explanation” section for details.
Reset Button
• Press the Reset button continuously for 3 sec to erase the
password. After 3 sec, the Ready LED will flash on/off every
half second. Release the reset button at this time to erase the
password.
• Press the Reset button continuously for 10 sec to load factory
defaults. After 10 sec, the Ready LED will flash on/off every
half second. Release the reset button at this time to load
factory defaults.
LED Indicators (top panel)
Power is off, or power error condition
exists
10 Mbps Ethernet connection
off
Ethernet cable is disconnected, or
NPort Server system is ready
NPort Server has malfunctioned
Serial data is being transmitted
Serial data is not being transmitted
Serial data is be ing received
Serial data is not being received
Hardware Installation Procedure
Placement Option s
In addition to placing
the
desktop or other
horizontal surface, you
may also make use of
the DIN
Mount options, as
illustrated here .
DIP Switch Settings and Explanation
The top panel of the DE -211 contains the following tab le, which
describes how to set up the serial port using the four DIP switches
located on DE-211’s rear pane l.
SW1
Switch SW1 controls the function of the serial port. Note that after
changing the setting of SW1, the DE-211 will reboot to in itialize the
new setting. You must wait a few seconds for the green Ready light
to blink off and then on again, indicating that the function of the
serial port has been changed. Switches SW2, SW3, and SW4
control the serial port’s data communication Interface Mode. (RTS
stands for Ready To Send and ADDC stands for Automatic Data
Direction Contr ol.)
Keep the follow ing points in min d when setting th e DIP switches :
• To use the serial port as an RS-232 console connection, such
as when using MOXA PComm Terminal Emulator or
HyperTerminal, set SW1 to the ON position.
• Some setup procedures can be carried out through a Telnet
connection, in which case data is transmitted through the
DE-211’s Ethernet port. However, you must set SW1 to the
OFF position to establish a Telnet connection.
Power
Power GND
RS-422/485
RS-422/485
RS-232
PC
Power

+1-714-528-6777 (toll-free: 1-888-669-2872)
+86-21-5258-9955 (toll-free: 800-820-5036)
2011 Moxa Inc. All r ights reserved.
Software Installation Information
Detailed information about installing the software that comes with
the DE-211 can be found on the NPort Documentation and
Software CD in the “NPort Family Software Installation Guide”.
Pin Assignments and Cable Wiring
Female DB25 Connector Pinouts
Pin 1 is reserved for debugging.
yourself could result in irreparable damage to your device.
RS-232 Wiring
RS-422 Wiring
RS-485 Wiring
DB25 Terminal Block Kit (RS-422, RS-485-2W/4W)
Environmental Specifications
Ambient Re lative
Humidity
5 to 95% (non-condensing)
Including ears: 90.2 × 100.4 × 22 mm
Without ears: 67 × 100.4 × 22 mm
15 KV ESD for the serial port
Magneti c Isolation
Protection
1.5 KV for the Ethernet port
FCC Class B, CE Class B, UL 60950-1, EN