documentation_ wifi-n-usb manual - technologic systems

7/23/2019 Documentation_ WIFI-N-USB Manual - Technologic Systems

1/4

16525 East Laser Drive

Fountain Hills, AZ 85268

Phone (480) 837-5200

WIFI-N-USB Manual

Documentation from June-2011

Table of Contents

1 Introduction

2 Downloading Necessary Drivers and Tools

3 Setting up the WIFI Interface Connection

3.1 Unencrypted

3.2 WEP Encryption

3.3 WPA Personal - TKIP

3.4 WPA2 Personal - AES

3.5 Adhoc Mode

Appendix A: Document History

Appendix B: Troubleshooting1 Introduction

In June 2011, Technologic Systems released the WIFI-N-USB adapter (Asus

USB-N13) to replace the existing two adapters: WIFI-G-USB and WIFI-G-USB-2

both of which have gone end of life. The new adapter has different dimensions and

new drivers which are detailed below.

Di mensi ons: WI FI - G- USB ( I OGear ) : 6. 0 cm L* 2. 5 cm W* 1. 0 cm H (Unavai l abl e) WI FI - G- USB- 2( Asus) : 7. 5 cm L* 2. 5 cm W* 0. 9 cm H ( Unavai l abl e) WI FI - N- USB ( Asus) : 7. 0 cm L* 2. 2 cm W* 1. 0 ccm H ( Wei ght 12 gm)

Chi pset : WI FI - G- USB ( I OGear ) : Zydas1211 ( Unavai l abl e) WI FI - G- USB- 2 ( Asus) : r t 2501usb ( Unavai l abl e)

WI FI - N- USB ( Asus) : r t 3070L

Other areas of interest of differences between the devices include (specs taken from

manufactures product page):

Temp Range: WI FI - G- USB ( I OGear ) : 0 - 55C ( Unavai l abl e) WI FI - G- USB- 2 ( Asus) : - 10 - 55C ( Unavai l abl e) WI FI - N- USB ( Asus) : 0 - 45C

RF Out put Power : WI FI - G- USB ( I OGea) : 17 dBm ( Unavai l abl e) WI FI - G- USB- 2 ( Asus) : - 14 ~ 17 dBm ( Unavai l abl e) WI FI - N- USB ( Asus) : B: 18 dBm G: 15 dBm N: 15 dBm

Antennae Opt i on: WI FI - G- USB ( I OGear ) : None

WI FI - G- USB- 2 ( Asus) : One on- boar d I nvert ed- F ant enna t o suppor t di ver si t y ( Gai n: 1. 77 dBi ) WI FI - N- USB ( Asus) : Two on- board

Range: WI FI - G- USB ( I OGear) : 100 - 400m, dependi ng on sur r oundi ng envi r onment WI FI - G- USB- 2 ( Asus) : I ndoor 130 f t ( 40 m) , outdoor ( LOS, Li ne- Of - Si ght) 1000 f t ( 330 m) WI FI - N- USB ( Asus) : Up t o 490 f t ( 150m)

Accessor i es: WI FI - G- USB ( I OGear) : None WI FI - G- USB- 2 ( Asus) : USB 2. 0 Uni ver sal J oi nt USB 2. 0 extensi on cabl e ( t ype A t o t ype A) Neck l ace WI FI - N- USB ( Asus) : None I ncl udes a f l exi bl e ext ensi on cabl e, appr oxi matel y 5 i nches ( 13 cm) i n l engt h wi t h a f l exi bl e j oi nt appr oxi matel y 2 i nches ( 5 cm) i n l engt h.

mentation: WIFI-N-USB Manual - Technologic Systems http://www.embeddedarm.com/about/resource.php?

10/2/2014


2/4

2 Downloading Necessary Drivers and Tools

WPA suppor t ( wpa_suppl i cant ) has t o be obt ai ned

separatel y, i t i s not i ncl uded or compi l ed wi t h t he r al i nk sour ces

f or t hi s dri ver. Code f or t hi s devi ce i s avai l abl e here:

f t p: / / f t p. embeddedarm. com/ mi sc/ wi f i - n-usb- bi nari es. t ar. gz

f t p: / / f t p. embeddedarm. com/ mi sc/ wi f i - n- usb- sour ces. t ar. gz

3 Setting up the WIFI Interface Connection

Thi s sect i on gi ves st ep by st ep i nst r uct i ons f or how t o connect t o wi r el ess

Access Poi nts ( AP) usi ng t he r t 2870st a and RT3070L chi pset . I t was t ested

usi ng a Li nksys WRT54GC Wi r el ess Rout er as an AP. Mast er mode i s not suppor t ed

by thi s dr i ver , but Adhoc i s. As a note, WPA i s general l y di sabl ed by defaul t

on st art up, but can be enabl ed ( see /etc/init.d/wpasupplicant) .

The f i r st st ep shoul d be t o l ocat e t he appr opri at e dr i ver f or t he TS product

i n use, downl oad i t t o t he board, and t hen use t he i nsmod command( i e. i nsmod r t 2870st a- t sXXXX. ko). When i nser t ed pr operl y, you wi l l see

t he devi ce i n /proc/net/wireless. Use cat /proc/ net / wi rel ess

t o veri f y:

r oot @t s7000: r oot # cat / pr oc/ net/ wi r el essI nt er- | st a-| Qual i t y | Di scar ded packet s | Mi ssed | WE

f ace | t us | l i nk l evel noi se | nwi d crypt f r ag r etr y mi sc | beacon | 16 r a0: 0000 100. 220 177 0 0 0 0 0 0

Wi r el ess connecti ons t est ed:

Unencr ypted

WEP

WPA Pers onal ( TKI P)

WPA2 Per sonal ( TKI P or AES)

Adhoc Mode

Usef ul Commands:

i wconf i g -- use to check stat us such as associ ati ons

i wl i st scan - - report s wi rel ess net works avai l abl e

pump OR dhcl i ent OR udhcpc - - assi gn a dynami c I P addr ess


10/2/2014


3/4

3.1 Unencrypted

1) Br i ng t he r a0 i nt erf ace up * i f conf i g ra0 up 2) Associ ate wi t h t he AP * i wconf i g r a0 essi d t he_essi d 3) Assi gn a stati c I P * i f conf i g r a0 192. 168. 1. 101

3.2 WEP Encryption

1) Br i ng t he r a0 i nt erf ace up * i f conf i g ra0 up 2) Associ ate wi t h AP * i wconf i g r a0 essi d t he_essi d key t he_key 3) Assi gn a stati c I P * i f conf i g r a0 192. 168. 1. 101

3.3 WPA Personal - TKIP

1) Br i ng t he r a0 i nt erf ace up * i f conf i g ra0 up 2) Generate a conf i gur ati on f i l e f or wpa_suppl i cant t o use * . / wpa_passphrase t he_essi d t he_password > / etc/ wpa_suppl i cant _custom. conf 3) Use wpa_suppl i cant t o associ ate wi t h AP and r un i t i n t he backgr ound ( - B) * . / wpa_suppl i cant - i r a0 - Dr al i nk - c/ etc/ wpa_suppl i cant _cust om. conf - B 4) Assi gn a stati c I P

* i f conf i g ra0 192. 168. 1. 101

3.4 WPA2 Personal - TKIP or AES

1) Br i ng t he r a0 i nt erf ace up * i f conf i g ra0 up 2) Generate a conf i gur ati on f i l e f or wpa_suppl i cant t o use * . / wpa_passphrase t he_essi d t he_password > / etc/ wpa_suppl i cant _custom. conf 3) I nser t "pr oto=RSN" i nto "network" bl ock i n / etc/ wpa_suppl i cant _custom. conf 4) Use wpa_suppl i cant t o associ ate wi t h AP and r un i t i n t he backgr ound ( - B) * . / wpa_suppl i cant - i r a0 - Dr al i nk - c/ etc/ wpa_suppl i cant _cust om. conf - B 5) Assi gn a stati c I P

* i f conf i g ra0 192. 168. 1. 101

3.5 Adhoc Mode

1) Br i ng t he r a0 i nt erf ace up * i f conf i g ra0 up 2) Set up r a0 f or Adhoc mode * i wconf i g r a0 mode adhoc channel 3 enc of f essi d t he_essi d 3) Assi gn a stati c I P * i f conf i g 169. 254. 114. 101 net mask 255. 255. 0. 0 4) Add def aul t gateway t o r out e ( opt i onal ) * r out e add def aul t gw 169. 254. 114. 100

Appendix A: Document History


10/2/2014


4/4

Date of Issue/Revision Revision Number Comments

06/ 08/ 2011 1. 0Cr eated as "WI FI - N- USB- 2 Manual Based on t he WI FI - G- USB- 2

manual "

Appendix B: Troubleshooting

I f you are havi ng di f f i cul t i es i n pi ngi ng your AP, t r y to di sconnect eth0 byusi ng the command i f conf i g eth0 down.

The message r t 2870st a: Unknown symbol x means t hat t he modul e

dependenci es have not been sat i sf i ed. Use t he f ol l owi ng as a gui de as a basi c

checkl i st t o i nsur e t he corr ect modul es ar e l oaded:

t s7000: ~# depmodt s7000: ~# modprobe hi dt s7000: ~# modpr obe usbcor et s7000: ~# modprobe usb_st or age

t s7000: ~# modpr obe scsi _mod t s7000: ~# modprobe ohci _hcd

The message i nsmod: er r or i nser t i ng ' r t 2870st a_t sXXXX. ko' : - 1 I nval i d modul e f or mat

wi l l occur i f you are tr yi ng t o i nsert a modul e i nt o a ker nel t hat i t was not

compi l ed f or. Veri f y t hat you have t he corr ect modul e f or your boar d. I f

you' r e sur e t he modul e shoul d work, t r y usi ng t he i nsmod command

wi t h the - f opt i on ( i e. i nsmod - f r t 2870st a_tsXXXX. ko) .


10/2/2014

documentation_ wifi-n-usb manual - technologic systems

Documents