Delta Plus MOBILE II
GSM/GPRS Class 10 with TCP/IP stack modem
Part No: ASLH306
User Guide
DRAFT COPY
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Delta Plus MOBILE II GSM/GPRS Class 10 with
TCP/IP stack modem
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Contents
Guide to the manual
Disclaimer
Copyright Notice
Trademarks
Introduction
Features
Connecting to your Terminal or Computer
Supplying power to the modem
Battery Powered version.
Antennae.
Subscriber Identity Module card.
Configuring the modem
AT Command set
Sony Ericsson commands
S Registers
Modem result codes
GPRS operation
Remote access feature
Pay as you go SIM support
LED Status
Technical Specifications
Appendices
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Delta Plus MOBILE II GSM/GPRS Class 10
With TCP/IP stack modem
Hardware User Guide
Guide to the manual
This manual contains detailed technical information about the Delta Plus
MOBILE II GSM/GPRS modem, including the commands necessary to
configure and use it in your particular application. If you require further
technical detail on this modem, please call our Technical Support Group.
Disclaimer
This manual has been checked for accuracy. The information included in this
document is pertinent to all versions of the Delta Plus MOBILE II GSM/GPRS
modem at the time of publication. Subsequent products and manuals are
subject to change without prior notification. Therefore ASLH Ltd. will take no
responsibility for damages incurred, either directly or indirectly, from errors,
omissions or inaccuracies between the product and the manual.
Copyright Notice
This manual is copyrighted by ASLH Ltd. with all rights reserved. Under
copyright laws, this manual may not be reproduced in any form without prior
written permission of ASLH Ltd. No patent liability is assumed however, with
regard to the use of the information contained herein.
Trademarks
Hayes is a trade mark of Hayes Microcomputer Products Inc.
Introduction
Thank you for purchasing this ASLH Ltd modem, which is guaranteed for one
year from the date of purchase. If, after reading this manual, you have any
problems or queries regarding this modem, please contact ASLH Ltd. from
whom the modem was purchased. In the unlikely event of you needing to
return the modem to us, you must first call our Returns Department, to obtain
a Return Authorisation Number (RAN). This number must be clearly marked
on the outer packaging containing the faulty modem, and addressed for the
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attention of the Returns Department. No goods will be accepted without a
Return Authorisation Number.
Please enclose a copy of your original purchase invoice, to enable us to
determine the warranty status. If no fault is found, a charge will be made to
cover the costs of testing and carriage. Your original or replacement modem
will be returned with an engineering report on the fault found. Thank you for
your co-operation.
The Delta Plus MOBILE II is a new low powered high speed GSM/GPRS
modem which has been specifically designed to meet the requirements of the
telemetry market and specifically applications within the Automatic Meter
Reading (AMR) arena.
The purpose of this manual is to enable the user to set up, configure and use
the modem in a manner suitable for any given application. A basic level of
modems and data communication technology is assumed.
Features
DTE speeds up to 9600 bps
Bearer channel speeds of 9600 bps, 4800 bps, 2400 bps and 1200 bps.
Supports auto-dial and auto-answer on number of rings
NVRAM stores configuration parameters
Suitable for approvals/use in most countries
Interface is a 25 pin D-type RS232 Connector
Power supply input on pins 9 and 15 of 25-way “D” type connector
Auto Shutdown minimises RS-232 Power consumption during periods
of inactivity.
Environment – Temperature : 0-50°C Humidity : 95% non condensing
Enhanced AT command set.
Integrated call progress and dialling.
Advanced power supply handling techniques.
Remote access capability.
Dual Band - ie. E-GSM (900 Mhz) or GSM (1800 Mhz)
GPRS – Mobile Originate and Listen modes. (Class 10)
Internal battery option.
External power option
Connecting to your Terminal or Computer
The 25 way D-type connector on the top of the modem provides the relevant
input and output connections to asynchronous (Serial RS-232 and
compatible) controllers. To establish a connection the modem can be directly
connected to a suitable 25 way socket on your computer or other DTE device,
or a short RS-232 cable can be used. When connecting the modem to the
DTE device, consideration must be given to the power supply arrangements
as most devices will not provide a suitable supply to the modem via the 25
way D-type connector.
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The 25 way D-type connector is wired as follows:
Pin number, name and mnemonic:
2 Transmit Data TxD
3 Receive Data RxD
4 Request to Send RTS
5 Clear to Send CTS
6 Data Set Ready DSR
7 Signal Ground/Supply Ground SG
8 Data Carrier Detect DCD
9 Power In PI
15 Power In PI
20 Data Terminal Ready DTR
22 Ring Indicator RI
Supplying power to the modem
The Delta Plus MOBILE II GSM/GPRS modem is powered via the RS232
interface connector. Pins 9 and/or 15 require a +7 to +24 Volts DC supply
(issue F. board) Earlier issues of the board require +7 to +15Volts. The
modem consumes 0.3 Watts. (See appendix). The supply to the modem is
floated across internal SuperCaps. These devices hold a considerable charge
and will allow the modem LED’s to continue to function for several minutes
after the removal of the power supply. This enables the modem to be used in
environments where the power supply is either intermittent and/or inadequate
(within reason) for a conventional modem product.
Battery powered version.
The GSM/GPRS modem is also available as a battery powered device. The
battery employed in the modem is a Lithium Ion Polymer type and is subject
to a minimum duty cycle of 1000 operations.
The battery is fitted in addition to the “Super Caps” that are present in
the standard modem and will power the modem for approximately two
minutes after the external supply has been removed. This is regardless of
whether or not the modem is on line. When the modem shuts down it will
issue a “Goodbye” message to the interface.
Additionally the modem can be switched off using an AT command.
The AT+K command will shutdown the entire modem (not just the Sony
Ericsson module as is the case with other ASLH 306 products) within 15
seconds. If the power supply to the modem is not removed within 30 seconds
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of the modem issuing the “Goodbye” message then it will commence its
power up sequence and restart.
The battery powered modem will power up within 5 seconds after the
external supply is applied given that the battery and capacitors are fully
charged and that the modem is operating at room temperature. If the battery
and capacitors are not fully charged and/or the modem is not operating at
room temperature then the power up sequence will take longer.
Antennae.
The Delta Plus MOBILE II GSM/GPRS modem is designed to work with many
industry standard antennae. Connection to the antenna is via a flying lead
terminated with a SMA type co-axial connector. The selection of the most
suitable antenna in any given installation will be dependent upon factors such
as the distance from the cell site, signal strength, power supply levels, and
other physical constraints. ASLH Ltd. will be pleased to assist customers with
the selection of suitable antennae.
Subscriber Identity Module card.
This product requires a suitable Subscriber Identity Module (SIM) card
inserted in the right hand side of the modem. The SIM card is provided by the
network service provider eg. O2, Vodafone, Orange etc. This card must be
data enabled, ie. a voice only SIM will not work. Additionally, if the product is
to be used for GPRS applications then the SIM card must be GPRS enabled.
This mode will be set as either mobile originate or terminate (IP listen)
depending upon the users requirements.
ASLH Ltd. is able to provide network service supplied by the aforementioned
companies.
Configuring the modem
This is achieved by the use of the standard Hayes(™) AT command set as
utilised in conventional land line modems. A comprehensive list of AT
commands used by the Delta Plus MOBILE II GSM/GPRS modem follows.
AT Command set
AT+ commands should be used alone, not concatenated ie AT+Y<cr>
not AT+YS0=1<cr> etc).
AT A
Answer mode enable
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Causes the modem to answer an incoming call.
AT D
Dial Command
Causes the modem to go on line and dial the following telephone number
subject to parameters set in the dial string.
eg: ATDT 12345 123456^m
Where “D” = Dial, “T” = Tone (Compatibility only), ^m = Carriage return.
AT E
Local Echo in command mode.
AT E0 = Local Echo off
AT E1 = Local Echo on
AT H
Hang Up command.
This command causes the modem to disconnect from the telephone line.
AT I
Identifier command.
ATI 0 displays: GR47
ATI 1 displays: CXC1122528
ATI 3 displays: GR47 Cable Modem
ATI 5 displays, for example:
Configuration Settings on Channel 0
&C: 1
&D: 0
*E2IPA: 0
*E2IPO: 0
*E2IPS: 2,10,2,1020
*EENMEA: 0
+CGATT: 1
+CGEREP: 0,0
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+CGREG: 0,1
+CHSR: 0
+CHSU: 0
+CMEE: 0
+CMUX: 0,0,1,31,10,3,30,10,2
+CR: 0
+CRC: 0
+CRLP: 61,61,48,6,0
+CRLP: 120,120,48,6,2,3
+CVHU: 2
+ICF: 3,3
+IFC: 2,2
+ILRR: 0
+IPR: 9600
E: 1
M: 0
Q: 0
S0: 001
S10: 002
S2: 043
S3: 013
S4: 010
S5: 008
S6: 002
S7: 050
S8: 002
V: 1
X: 4
Due to the architecture of the interface circuitry not all of the above
commands will necessarily be displayed each time.
ATI 7 displays: GR47 Profile
Interfaces: System Bus
ATI 9 displays: ($ERI0044\\MODEM\\GR47 Cable Modem0D)
AT O
Return to on line state command
This command returns to modem to the on line data transmission state
following an on line command mode session. ie. it is used to return to data
mode after the +++ escape sequence has been entered.
AT Q
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