Baer UniMod GSM-4 User manual

UniMod GSM-4
Modem
User Manual E109102214063
Bär Industrie-Elektronik GmbH
Rathsbergstr. 23
D-90411 Nürnberg
Germany
Phone : [phone]
Fax: [phone]
Internet: www.baer-gmbh.com

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COPYRIGHT
Copyright © 2014 BÄR Industrie-Elektronik GmbH.
All rights, including those originating from translation, (re)-printing and copying of this document
or parts thereof are reserved. No part of this manual may be copied or distributed by electronic,
mechanic, photographic or indeed any other means without prior written consent of
BÄR Industrie-Elektronik GmbH. All names of products or companies contained in this docu-
ment may be trademarks or trade names of their respective owners.
Note
Based on its policies, BÄR Industrie-Elektronik GmbH develops and improves their
products on an ongoing basis. In consequence, BÄR Industrie-Elektronik GmbH
preserve the right to modify and improve the software product described in this document.
Specifications and other information contained in this document can change without prior notice.
This document does not cover all functions in all possible detail or variations that may be en-
countered during installation, maintenance and usage of the software.
Under no circumstances whatsoever will BÄR Industrie-Elektronik GmbH accept
any liability for mistakes in this document or for any sub sequential damage arising from installa-
tion or usage of the software.
BÄR Industrie-Elektronik GmbH preserves the right to modify or withdraw this
document at any time without prior announcement.
BÄR Industrie-Elektronik GmbH does not accept any responsibility or liability for the
installation, usage, maintenance or support of third party products.
Printed in Germany

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Table of Contents
Page
1General.............................................................................................................................5
1.1 Requirements...........................................................................................................5
2Safety Precautions for the User......................................................................................6
3Power Supply Unit...........................................................................................................7
4Interfaces..........................................................................................................................8
5Display............................................................................................................................10
6Installation Hints............................................................................................................11
7Programming the Modem..............................................................................................12
7.1 Testing the Connection...........................................................................................18
7.2 Parity Error (7E1)....................................................................................................18
8Additional Functions.....................................................................................................19
8.1 Reset......................................................................................................................19
8.2 Signal Quality .........................................................................................................20
8.3 SMS Function.........................................................................................................21
8.4 Automatic Baud Rate Adaption...............................................................................22
8.5 Temporary Baud Rate Switching ............................................................................25
8.6 GPRS: More PLMNs...............................................................................................26
8.7 GPRS: Fixed IP Address ........................................................................................27
8.8 GPRS: Dynamically Timeout ..................................................................................27
8.9 GPRS: Test Mode ..................................................................................................28
8.10 Firmware Update (Option) ......................................................................................28
9Technical Data ...............................................................................................................30
10 Inserting the Interface Modules....................................................................................32
11 Terminal Block...............................................................................................................33
12 Dimensions....................................................................................................................34

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1 General
The world-wide GSM radio networks (GSM = Global System for Mobile
communication) provide besides digital voice communication the possibility
to transmit data. In this operation mode it is possible to send fax, data
(CSD: Circuit Switched Data connection), GPRS: General Packet Radio
Service) and short messages (SMS). The universal radio modem UniMod
GSM-4 is supposed for remote inquiry of measurement data of any kind,
especially however for telecounting applications.
The UniMod GSM-4 supports in the operation mode GPRS the meter data
communication according to DIN 43863-4 (IP-Telemetry).
1.1 Requirements
The UniMod GSM-4 can be used in any EGSM 850/900/1800/1900 MHz
network with an arbitrary number of providers. It requires however the in-
frastructure for operating mobile stations with 2 Watt (Class 4; 850/900
MHz) or 1 Watt (Class 1; 1800/1900 MHz) transmission power. The modem
supports an interface for 3V SIM cards. For communication a SIM card with
call number for 9600 Baud transmission is needed.
For the UniMod GSM-4 communication modules produced by internation-
ally renowned companies are used. These companies update their soft-
ware packages regularly and add or change features. The software
releases are continuously checked by the development department, but no
responsibility for this software releases can be taken over except of war-
ranty granted by the module producer.

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2 Safety Precautions for the User
Aircraft safety
Cellular engines can interfere with an aircraft’s navigation system and its
cellular network. The use of UniMod GSM-4 on board aircraft is forbidden
by law. Failure to comply with this prohibition may lead to temporary sus-
pension or permanent cancellation of cellular engine services for the per-
son who infringes this prohibition and/or to legal action against said person.
Environments with explosive substances
a) Users are advised not to use the device in automotive service stations.
b) Users are reminded of the necessity to comply with restrictions regarding
the use of radio devices in fuel depots, chemicals plants and locations
where explosives are ignited.
Non-ionising radiation
As is the case with other mobile radio transmitters, operating personnel are
advised to use the device in the normal operating position only in order to
ensure optimum performance and safety. Avoid touching the antenna.
Personnel
Installation and repairing should be done by experienced personnel only.
Connecting to other devices
In order to connect the UniMod GSM-4 to another device please read the
device’s operation manual to obtain detailed information about safety. Don’t
connect devices, which are not approved by manufacturer.
Precautions in the event of loss/theft of the Cellular Engine and
the SIM card
If your UniMod GSM-4, your SIM card or both go missing, notify your net-
work operator immediately in order to avoid misuse.

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3 Power Supply Unit
The modem is equipped with a built-in, low-loss switched power supply,
which enables it to operate on a wide-range AC or DC supply voltage.
80VAC to 270VAC (50/60Hz) or 60VDC to 375VDC
alternative (with additional board): 10VDC to 36VDC (0,8A)
or 20VDC to 72VDC
80VAC to 270VAC / 60VDC to 375DC
10VDC to 36VDC
Attention: NEVER remove the interface modules or the SIM card when the device
is powered! The card and especially it’s contact pads can be damaged
very easily by scratches or bending. Be careful when inserting or re-
moving it.

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4 Interfaces
Communication is possible with many standard protocols, like SCTM,
LSV1, DLMS, IEC1107, IEC60870, M-Bus, Modbus (transparent reading)
etc.
The following internal (on-board) interfaces in UniMod GSM-4 are available:
RTS
tm
CTS
tp
20mA (CS, current loop) active for 4 devices max.
Can be enabled via jumpers „tp“ and „tm“. This interface supports “echo
suppression” and can be operated without load (terminal open).
120R
RS485 (2 wires).
Using the UniModSet program the user can determine the functionality of
the RS485 interface (2-wire or disabled). Set the “120R” Jumper for activa-
tion the 120 Ohm termination (if necessary).
RS232 (RxD, TxD, DTR, DCD, GND); for service only
RTS and CTS bridged;

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In the UniMod GSM-4 modem an additional slot is available for another in-
terface module. For this slot the following module types are available (instal-
lation: see page 32):
RTS
tm
CTS
tp
20mA (CS, current loop) active (for 4 devices max.) or passive;
if the 20mA interface is active it must be operated either with a load or its
terminals must be short-cut.
RTS
tm
CTS
tp
RS232 (RxD, TxD, CTS, RTS, GND);
If RTS/CTS lines are used, the internal 20mA interface must be deactivated.
(Set jumper “RTS” and “CTS” instead of “tm” and “tp”.)
RTS
tm
CTS
tp
RS485 (2 wires);
RTS
tm
CTS
tp
RS485 (4 wires);
When the 4-wire interface is used, the internal 20mA interface must be de-
activated. (Set jumper “RTS” and “CTS” instead of “tm” and “tp”.)
RTS
tm
CTS
tp
M-Bus active (for 10 devices max.) or passive;
Please note: All interfaces are internally connected with each other. Therefore all
attached devices receive the same data from the interface. It must be
ensured that never two or more devices send data at the same time.
Example demonstrating different kinds of connection:

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5 Display
Some of LEDs’display the current operating status of the modem and give in-
formation about the data transfer
Power signals, that the modem is supplied with power.
GSM - permanently off: power down mode
- 500 ms on / 500 ms off: Limited Network Service: No SIM card
inserted or no PIN entered, or network search in progress, or on-
going user authentication, or network login in progress
- 300 ms on / 2,7 s off: IDLE mode: The mobile is logged to the
network (monitoring control channels and user interactions); no
call in progress
- permanently on: CSD call: Connection to remote party
INF Information: 3 LEDs showing processor status and field strength.
Modem is ready for programming, data transmission and call
answering not before the leftmost INF-LED is on.
This happens
- in CSD mode (GSM dial-up connection): about 50 seconds after
“Power On”
- in GPRS mode: about 60 seconds after “Power On”
RI lights, when the modem rings
DCD - in CSD mode lights, when the modem has built a data link to re-
mote station
- in GPRS mode:
IPT or BAER: DCD lights, when the modem is logged to the
GPRS-Bridge
fixed IP address: DCD lights, when a remote modem has built a
data link to the UniMod GSM4;
TxD lights, when data is transferred from modem to target device (e.g.
meter)
RxD lights, when data is transferred from target device to modem