Elok-Ori Group GmbH
NKO 02614 Module WLAN EMWLAN
IS
O
9001
:2000
Autor:
Created by:
JT
Datum:
Created on:
29.6.2010
. /:
Document No. / Rev.:
NKO201000194/A
:
Changed by:
JT
Datum:
Changed on:
15.9.2010
Typ dokumentu:
Type of document:
Custom
:
Approved by:
- - -JBödecker
Datum:
Approved on:
- - -
Status:
State:
In Review
(page) 4,(of) 10
3. Operating instructions
The base of the EMWLAN modem is a Nano WiReach module from the ConnectOne company. It
makes WiFi connectivity with other devices which are connected through RS232 interface or Ethernet
interface with the EMWLAN modem.
The EMWLAN modem can be connected in the WLAN Infrastructure network as a client (works
with AP) or can work in a WiFi ADHOC network. It uses WEP or WPA / WPA2 PSK WiFi encryption.
The EMWLAN modem supports these internet protocols:
ARP,ICMP,IP,TCP,DHCP,DNS,SMTP,NTP,POP3,HTTP,FTP,Telnet
The EMWLAN modem supports these security protocols:
SSL3/TLS1,HTTPS,FTPS,RSA,AES,3DES,RC4,SHA1,MD5,WEP,WPA,WPA2
A special high-
level “AT+i” protocol for module settings and controlling by RS232 interface is
implemented. It eliminates the need to add Wifi drivers, security or a networking protocol. A detailed
description of
“AT+i” commands is given in the „ATi programmers manual.pdf“ which is delivered by
ConnectOne company. The default communication parameters are set as 57600 Bd, 8bit , no parity,
1x stop bit, hw handshake.
The EMWLAN modem is fitted with two indication LEDs. The green LED indicates WiFi
network status, the yellow LED indicates link activity on Ethernet interface. For EMWLAN2.2 model
the yellow LED indicates the communication on RS232 interface only.
*
EMWLAN 2.5
**
EMWLAN 2.2
The CPU unit inside the EMWLAN modem ensures correct activation and working of the internal
module. It is possible to operate this CPU unit by special
„EM“ commands through the RS232
interface (such as restarting the module). The CPU unit detects the low level of input voltage. If the
power voltage is lower than 10V, the EMWLAN modem automatically switches off.
3.1 Operation modes
The EMWLAN modem supports several operation modes, which are activated according the
actual settings:
1. ...... LAN to WiFi bridge (for EMWLAN2.5 modem only)
2. ...... Serial to WiFi bridge
3. ...... PPP modem emulation
4. ...... Full Internet Controller mode
LEDs
indication
Green LED
Yellow LED
Off
WiFi not connected
Ethernet disconnected
*
On
WiFi connected
Ethernet connected
*
Flashing
WiFi connecting
Communication on Ethernet
*
Communication on RS232
**
