Option OGTM353-W GSM/GPRS/UMTS/HSDPA QUAD BAND PCI MINI CARD User Manual Cobra Module

Option NV GSM/GPRS/UMTS/HSDPA QUAD BAND PCI MINI CARD User Manual Cobra Module

Contents

User Manual

OPTION NV, Kolonel Begaultlaan 45, B-3012 Leuven
Tel +32 16 317 411 Fax +32 16 207 164 http://www.option.com
Option Confidential
General Document
User Manual Cobra Module
General Document, Register Cobra module on CMU200
Author: Version: V01
–
F1
Creation Date: Jul 31, 2006 Page: 1 of 6
Option Confidential: This document is Option Confidential - it may not be duplicated, neither distributed externally without prior and written permission of
Option NV.
About this document
Overview and Purpose
This document describes how to register an Option Cobra Module on a CMU200.
Confidentiality
All data and information contained or disclosed by this document is confidential and proprietary
of Option NV, and all rights therein are expressly reserved. By accepting this document, the
recipient agrees that this information is held in confidence and in trust and will not be used,
copied, reproduced in whole or in part, nor its contents revealed in any manner to others without
prior and written permission of Option NV.
Version History
Date Version Author(s) Revision(s) Remarks
Apr 26, 2006 V01 – F1 R. Biesemans Initial version
July 31, 2006 J. Boeckx Review
General Document, Register Cobra module on CMU200
Author: Version: V01
–
F1
Creation Date: Jul 31, 2006 Page: 2 of 6
Option Confidential: This document is Option Confidential - it may not be duplicated, neither distributed externally without prior and written permission of
Option NV.
Table of contents
1 INTRODUCTION ................................................................................................................................ 3
2 Registering the module to the CMU200 ............................................................................................... 3
2.1 Settings on CMU200................................................................................................................... 3
2.2 Settings on the module ................................................................................................................ 4
3 References............................................................................................................................................. 6
General Document, Register Cobra module on CMU200
Author: Version: V01
–
F1
Creation Date: Jul 31, 2006 Page: 3 of 6
Option Confidential: This document is Option Confidential - it may not be duplicated, neither distributed externally without prior and written permission of
Option NV.
1 INTRODUCTION
This document describes how to register an Option Cobra Module on a CMU 200. This manual will guide
you through the steps so you can do some tests on the CMU 200.
2 REGISTERING THE MODULE TO THE CMU200
Note: When mentioned switch off, AT+CFUN should be set to: AT+CFUN=0
When mentioned switch on, AT+CFUN should be set to: AT+CFUN=1
Use RF2 connection of CMU200 to connect the module. Select GSM or WCDMA on CMU. When the card
is properly configured, and the preferred band is selected, the card will register automatically on the
system.
When the card does not register on the CMU with the default setting of the CMU, please check the settings
in the following paragraphs.
If the CMU has the integrity check enabled, you can use the card without any security setting changes
(AT_OSEC=4). If not, please change the OSEC setting of the card: set OSEC to 3 (AT_OSEC=3) using a
terminal program (for ex. HyperTerminal). For life networks, integrity checks are default enabled, so the
OSEC setting needs to be set on 4.
2.1 Settings on CMU200
1. RF connector compensation:
Look if compensation settings are right: AF/RF. In normal use, meaning when your cables are all
very well isolated, you have to compensate both directions for a minimum of +0,5 dB. You can
choose higher values when you think the cables are not isolated enough.
2. BS signal too low:
When at first try, the card doesn’t seem to register, try to increase the BS signal levels. Normal
operation would be around 65 dBm. Try this value and switch the card off and on again.
After checking these settings. Switch off and switch on the card again. (at+cfun=0 and at+cfun=1)
It is also recommended to safe remove the card.
General Document, Register Cobra module on CMU200
Author: Version: V01
–
F1
Creation Date: Jul 31, 2006 Page: 4 of 6
Option Confidential: This document is Option Confidential - it may not be duplicated, neither distributed externally without prior and written permission of
Option NV.
2.2 Settings on the module
When previous steps didn’t do the trick, please check the settings on the card.
All steps mentioned next, should be evaluated in this order.
After each step, perform a safe removal of the card.
1. At_opbm
When not working in a shielded environment, all life networks could interfere with the signal
coming from the CMU. When the simulated network is not in the same band as the surrounding
life networks, this problem can be avoided by deselecting all other basebands but the one you are
working in.
This could be done using the at_opbm command:
Extract from datasheet:
Preferred Band Mode _OPBM
Command Possible response(s)
_OPBM=<band>,<n> OK
_ OPBM =? _OPBM: (list of supported <band>s)
_ OPBM? <band>: <n>[<CR><LF><band>: <n>[…]]
Description
This command is used to disable/enable specific frequency bands.
Defined Values
<band>
“ANY” : any band
“EGSM” : EGSM (900MHz) band
”DCS” : DCS (1800MHz) band
”PCS” : PCS (1900MHz) band
”G850” : GSM 850MHz band
”U2100” : WCDMA 2100MHz band
”U1900” : WCDMA 1900MHz band
“U1700”
“U17IV”
“U850” : WCDMA 1900MHz band
<n>
0 : disable
1 : enable
Eg: if you use GSM1900 (PCS) band, select only this band. All other bands have to be deselected.
It is also very important to deselect EVERY UMTS band when trying to connect to a GSM
network and vice versa:
General Document, Register Cobra module on CMU200
Author: Version: V01
–
F1
Creation Date: Jul 31, 2006 Page: 5 of 6
Option Confidential: This document is Option Confidential - it may not be duplicated, neither distributed externally without prior and written permission of
Option NV.
At_opbm = “PCS”,1 (selection of PCS band)
At_opbm = “DCS”,0 (deselection of DCS band)
Same for the other bands, also the UMTS bands!!!
To check if the band is really (de)selected, use “at_opbm?” The bands showing 0 are deselected,
the bands showing 1 are selected.
2. AT_OPSYS
When the band settings did not work, try the OPSYS command: this command selects the
UTRAN and the packet and/or circuit switched domain.
Extract from datasheet:
Preferred SYStem “AT_OPSYS”
Command Possible Response(s)
_OPSYS=[<mode>[,<domain>]] OK
_OPSYS? _OPSYS: <mode>,<domain>
_OPSYS=? _OPSYS: (0-5),(0-6)
Description
This command changes the preferred system, GSM/WCDMA, the acquisition order and the service
domain preference PS/CS.
Defined values
<mode>:
0 GSM only
1 WDMA only
2 GSM first
3 WCDMA first
4 No change
5 Auto
<domain>:
0 Acquire only circuit-switched systems
1 Acquire only packet-switched systems
2 Acquire circuit-and/or packet-switched systems
3 Any domain will do; no preference
Eg: at_opsys=0,2 selects options:
GSM only and CS & PS domains
General Document, Register Cobra module on CMU200
Author: Version: V01
–
F1
Creation Date: Jul 31, 2006 Page: 6 of 6
Option Confidential: This document is Option Confidential - it may not be duplicated, neither distributed externally without prior and written permission of
Option NV.
3 REFERENCES
Ref Document

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