Unitech MR055 Specifications

MR055 Ethernet Board

MR055 Ethernet Board is a specially design for MR350MKII and MR350TA

series.

The main function of the MR055 is to network-enable existing serial devices. Using the MR055 you
can add an Ethernet port practically to any serial device with RS232 interface, and communicate
with your serial device from any PC (or other device) to LAN.
If your LAN has a direct connection to the Internet, then you can access and control your serial
device from anywhere in the world!

1. Specifications

Specifications

Ethernet Interface
Serial Interface

Network Protocols
Management

Power Supply
Operation Temperature

Operating Relative Humidity

Auto-detecting 10/100 Mbps
TTL-level RS232

RS232 signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
ICMP, ARP, IP, TCP, UDP, DHCP, Telnet, HTTP, SNMP, SMTP
Web browser, serial console, Telnet console, or Windows utility library for

developing your own utility
DC 5V +

0-70℃
0-90%

5%, 290mA

Network port
pin assignments
(TTL level)

Pin Signal name

1 TX (+)
2 TX (-)
3 RX (+)
4 RX (-)
5 NC
6 Link
7 +5V (LED)

Serial Port
PIN Assignments

PIN Signal Name

1 +5V
2 GND
3 RxD (in)
4 TxD (out)
5 Reset (Low)
6 N/A
7 System using
8 System using
9 N/A

10 +5V (LEDs)

2. Installation

1.1 Hardware Installation
Install MR055 to MR350 series terminal [ un-plug power first ]
Plug power to MR350 series
Connect RJ-45 cable to MR terminal.

2.2 Initial Setup on MR350MKII/MR350TA side.
Press Alpha + F5 (enter supervisor mode )
Select 1)DEVC then select RS485/232 by pressing Enter .

Press ▽ key to select ETHERNET then press Enter .
Select MULTI-POINT, Enter, A, Enter,

Set Baud Rate to 38,400 by ▽ key, then Enter.
Select 8 DATA Bits, then NONE Parity, then 1 and then Enter.

Press Alpha + F5 to Exit supervisor mode.

3.3 Setup on PC side.

 Install MR055 Ethernet INITIAL PROGRAM from
http://adc.unitech.com.tw/pub/CS/software/neadm_setup_Ver2.9_Build_07031509.zip

 Software Setup: Install Network Enabler Administrator normally, and start it up. The software

will automatically scan for the cradle; when it is found, you will see a window on your screen as
shown below.