Conel EDGE ER75i User manual

1

CONTENTS
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Contents
1. Safety instructions 4
2. Description of ER75i router 5
2.1. Introduction 5
2.2. Delivery Identification 5
2.3. Antenna Connection 7
2.4. SIM Card Reader 7
2.5. Power Supply 7
2.6. Technical parameters 8
2.7. Description of individual components of ER75i 9
2.7.1. GSM/GPRS/EDGE module 9
2.7.2. Control microcomputer 9
2.8. User interfaces (Connectors) 10
2.8.1. Connection of the PWR Supply Connector 11
2.8.2. Connection of the ETH Connector 11
2.8.3. Connection of the Connector USB 11
2.8.4. Connection of the optional connector PORT1 12
2.8.4.1. Expansion port RS232 12
2.8.4.2. Expansion port RS485G 13
2.8.4.3. Expansion port MBUS 14
2.8.4.4. Expansion port CNT 14
2.9. Technical specification of optional PORT1 15
2.10. Modem status indication 18
2.11. Putting into operation 18
2.12. Mechanical external dimensions and mounting recommendations 18
3. Expansion port mounting 21
4. Configuration setting over web browser 23
4.1. Network Status 23
4.2. DHCP Status 25
4.3. IPsec status 25
4.4. GPRS Status 25
4.5. DynDNS status 26
4.6. System Log 26
4.7. LAN Configuration 27
4.8. VRRP configuration 29
4.9. GPRS Configuration 30
4.10. Firewall Configuration 32
4.11. NAT Configuration 33
4.12. OpenVPN Tunnel Configuration 35
4.13. IPsec Tunnel Configuration 37
4.14. GRE Tunnel Configuration 39
4.15. L2TP tunnel Configuration 40
4.16. DynDNS Client Configuration 42
4.17. NTP Client Configuration 42
4.18. SNMP Configuration 43
4.19. SMS Configuration 44
4.20. SIM PIN Configuration 47
4.21. External port Configuration 48
4.22. Start-up script 49

CONTENTS
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4.23. Change password 49
4.24. Setting inner o’clock 50
4.25. Send SMS 50
4.26. Backup Configuration 50
4.27. Restore Configuration 50
4.28. Update firmware 51
4.29. Reboot 51
4.30. Default settings 52
4.30.1. LAN Configuration 52
4.30.2. VRRP Configuration 52
4.30.3. Firewall Configuration 52
4.30.4. GPRS Configuration 53
4.30.5. NAT Configuration 53
4.30.6. OpenVPN Tunnel Configuration 54
4.30.7. IPsec Tunnel Configuration 55
4.30.8. GRE Tunnel Configuration 56
4.30.9. L2TP Configuration 56
4.30.10. DynDNS Configuration 57
4.30.11. NTP Configuration 57
4.30.12. SNMP Configuration 57
4.30.13. SMS Configuration 58
4.30.14. SIM PIN Configuration 58
4.30.15. External Port Configuration 58
4.30.16. Startup Script 59
5. Configuration setting over Telnet 60
6. Driver installation 61
7. Control by AT commands 63
8. Possible problems 63
9. Reference 63
10. FAQ 63
11. Customer’s care 64
12. Product disposal informations 65
13. Guarantee Claim Guidelines 66
14. Guarantee certificate 69
Symbols used
Danger – important notice, which may have an influence on the user’s safety
or the function of the device.
Attention – notice on possible problems, which can arise to in specific cases.
Information, notice – information, which contains useful advices or special interest.
GPL licence
Source codes under GPL licence are available free of charge by sending email on
Conel s.r.o., Sokolska 71, 562 04 Usti nad Orlici, Czech Republic
Issue in CZ, 7/16/2008

SAFETY INSTRUCTIONS
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1. Safety instructions
Please, observe the following instructions:
•The communication module ER75i must be used in compliance with any and all applicable
international and national laws and in compliance with any special restrictions regulating
the utilization of the communication module in prescribed applications and environments.
•To prevent possible injury to health and damage to appliances and to ensure that all the
relevant provisions have been complied with, use only the original accessories.
Unauthorised modifications or utilization of accessories that have not been approved may
result in damage to the communication module and in a breach of applicable regulations.
Unauthorized modifications or utilization of accessories that have not been approved may
result in the termination of the validity of the guarantee.
•The communication module ER75i must not be opened. Only the replacement of the SIM
card is permitted.
•Caution! The SIM card could be swallowed by small children.
•Voltage at the feed connector of the communication module must not be exceeded.
•Do not expose the communication module to extreme ambient conditions. Protect the
communication module against dust, moisture and high temperature.
•It is recommended that the communication module should not be used at petrol stations.
We remind the users of the duty to observe the restrictions concerning the utilization
of radio devices at petrol stations, in chemical plants, or in the course of blasting works
in which explosives are used.
•Switch off the communication module when travelling by plane. Utilization of the
communication module in a plane may endanger the operation of the plane or interfere with
the mobile telephone network, and may be unlawful. Failure to observe these instructions
may result in the suspension or cancellation of telephone services for the respective client,
or, it may result in legal sanctions; it may also result in both eventualities.
•When using the communication module in close proximity of personal medical devices,
such as cardiac pacemakers or hearing aids, you must proceed with heightened caution.
•If it is in the proximity of TV sets, radio receivers and personal computers, the telephone
may cause interference.

DESCRIPTION
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2. Description of ER75i router
2.1. Introduction
EDGE router ER75i is a compact electronic device based on the MC75 module which
enables data transfers using GSM, GPRS and EDGE technologies.
Primarily, the ER75i router expands the capabilities of the MC75 module by the option
of connecting more PCs by means of the built-in Ethernet interface. In addition, the firmware
of the ER75i router provides automatic establishment and maintenance of GPRS connection.
By means of integration of DHCP server it provides the users simple installation and Internet
access.
In addition, the ER75i router is equipped with the USB 2.0 Full Speed interface which is
designed only for connection to PC with Windows 2000 or Windows XP operating system. For
its putting into operation it is sufficient to install drivers from the supplied CD to the PC.
By consumer request router ER75i is possible equip with modulus port PORT1
and extend functionality of EDGE router ER75i.
Examples of Possible Application
•mobile office
•image transmission
•security system
•telematics
•telemetry
•remote monitoring
•monitoring of traffic information
•vending and dispatcher machines
2.2. Delivery Identification
Specimen Label:
Trade name Type name
ER75i ER-75i

DESCRIPTION
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Specimen label of optional PORT1:
Trade name of PORT1 Type name of PORT1 Power supply
Expansion port RS232 XC-232 Internal power supply
Expansion port RS485 XC-485G Internal/external power supply
Expansion port MBUS XC-MBUS External power supply
Expansion port CNT XC-CNT Internal power supply
Basic delivered set of ER75i includes:
•EDGE router ER75i,
•power supply,
•crossover UTP cable,
•external magnetic antenna,
•installation CD containing instructions and drives,
•plastic clips for the DIN bar with fixing screws.
In addition to the basic it is possible to deliver:
•expansion port RS232, RS485 or MBUS (distant columns are in distribution),
•USB A-B cable.

DESCRIPTION
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Router ER75i is standardly designed for:
•mounting to a panel using through holes,
•or possibly to be put on a worktop,
•for mounting onto the DIN rail by the plastic clips, which they are added.
2.3. Antenna Connection
The whip antenna is connected to ER75i using an FME on the back panel.
External whip antenna:
2.4. SIM Card Reader
The SIM card reader for 3 V and 1.8 V SIM cards is located on the front panel
of the modem. For putting the modem into operation it is necessary to insert an activated SIM
card with unblocked PIN in the reader.
1. Make sure that the modem is not being power-supplied.
2. Press the small yellow button next to the reader to eject the reader holder.
3. Insert the SIM card in the reader holder and slide it in the reader.
2.5. Power Supply
ER75i requires +10 V DC to +30 V DC supply. The protection against reversal
of polarity without signaling is built in the modem.
The power consumption during receiving is 1W. The peak power consumption during
data sending is 3.5W. For correct operation it is necessary that the power source is able to
supply a peak current of 500mA.

DESCRIPTION
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2.6. Technical parameters
GSM module MC75
Complies with standards 3GPP TS 51.010.-1,v5.10.0
EN 301 511, v9.0.2
EN 55022:1998, A1:2000, A2,Cor:2003
EN ISO/IEC 17025
EN 60 950:2001
Frequency bands EGSM850, EGSM900, GSM1800 a
GSM1900
Transmit power Class 4 (2W) for EGSM850
Class 4 (2W) for EGSM900
Class 1 (1W) for GSM1800
Class 1 (1W) for GSM1900
Temperature range Operation
Storage -20 oC to +55 oC
-40 oC to +85 oC
Supply voltage 10 až 30 V DC
Consumption Reception
Transmission 1 W
3,5 W
Dimensions 30x90x102 mm (attachment to DIN bar
35mm)
Weight 140 g
Antenna connector FME – 50 Ohm
User interface ETH
USB
PORT1
Ethernet – connector RJ45 (10/100 Mbit/s)
USB 2.0 – connector USB-B
Optional – connector RJ45 (150 b/s –
230400 b/s), RS232, RS485, M-BUS, CNT

DESCRIPTION
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2.7. Description of individual components of ER75i
2.7.1. GSM/GPRS/EDGE module
The MC75 OEM module is used for GSM network wireless communication. It is
integrated in the printed circuit board. The slide-out SIM card reader is accessible from
the front panel. The FME antenna connector is accessible from the back panel.
The MC75 module is equipped with the USB 2.0 Full Speed interface which is brought
to the USB-B connector marked USB. The MC75 module is connected to the control computer
via the RS-232 high-speed serial interface.
Modul MC75
•Communicates in four GSM bands (850MHz, 900MHz, 1800MHz, and 1900MHz).
•In the GPRS mode it is able to transmit in three „Time Slot“ and receive in two (GPRS
multi-slot class 10 – the maximum bit rate of reception is 42.8 kb/s) or transmit in one
„Time Slot“ and receive in four (GPRS multi-slot class 12 – the maximum bit rate
of reception is 85.6 kb/s).
•In the EDGE mode it is able to transmit in three „Time Slot“ and receive in two (EDGE
multi-slot class 10 – the maximum bit rate of reception is 118.4 kb/s) or transmit in one
„Time Slot“ and receive in four (GPRS multi-slot class 12 – the maximum bit rate
of reception is 236.8 kb/s).
•Supports coding schemes CS1 to CS4 and MCS1 to MCS9.
Beware! The transmitting and receiving in timeslots is depends on the operator networks
possibilities.
2.7.2. Control microcomputer
The core of the ER75i router is a 32-bit microprocessor with 16 MB RAM, 4 MB FLASH
EEPROM, serial interface RS-232 and an Ethernet interface 10/100 Mbit/s.
The microcomputer is connected to the MC75 OEM module through the serial interface
and controls the communication via GSM/GPRS. Towards to the user it is connected
on the Ethernet interface.
The software is built on the uClinux operating system.
The router ER75i support services as like DHCP, NAT, GRE, IPSec tunnels, etc.
The router settings are saved in the FLASH EEPROM memory. All configuring
of the modem can be done through a web interface (HTTP) which is security passwords.

DESCRIPTION
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2.8. User interfaces (Connectors)
On the back panel of ER75i the following connectors are located:
•one RJ12 connector (PWR) – for connection of the power supply adapter
•one RJ45 connector (ETH) – for connection into the local computer network
•one RJ45 connector (optional PORT1) – for connection of the local any arrangement over
RS232, RS485 or MBUS
•one FME connector (ANT) – for connection of the antenna
•one USB-B connector (USB) – for connection of the router to the PC.
Rear panel
Front panel

DESCRIPTION
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2.8.1. Connection of the PWR Supply Connector
Panel socket RJ12.
Pin
number Signal
mark Description
1 +UN Positive pole of DC supply voltage (10 to 30 V)
2 NC Signal not connected
3 NC Signal not connected
4 +UN Positive pole of DC supply voltage (10 to 30 V)
5 GND Negative pole of DC supply voltage
6 GND Negative pole of DC supply voltage
Circuit example:
2.8.2. Connection of the ETH Connector
Panel socket RJ45.
Pin
number Signal
mark Description Data flow
direction
1 TXD+ Transmit Data – positive pole Input/Output
2 TXD- Transmit Data – negative pole Input/Output
3 RXD+ Receive Data – positive pole Input/Output
4 EPWR+ DC supply voltage from the switch – positive pole
5 EPWR+ DC supply voltage from the switch – positive pole
6 RXD- Receive Data – negative pole Input/Output
7 EPWR- DC supply voltage from the switch – negative pole
8 EPWR- DC supply voltage from the switch – negative pole
ATTENTION! Port ETH is not POE (Power Over Ethernet) compatible!
2.8.3. Connection of the Connector USB
Panel socket USB-B.
Pin
number Signal
mark Description Data flow
direction
1 VCC Positive pole of 5V DC supply voltage
2 USB data - USB data signal – negative pole Input/Output
3 USB data + USB data signal – positive pole Input/Output
4 GND Negative pole of DC supply voltage
Pin 1 – +UN
Pin 2 – NC
Pin 3 – NC
Pin 4 – +UN
Pin 5 – GND
Pin 6
–
GND
Router ER 75i
DC
+

DESCRIPTION
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2.8.4. Connection of the optional connector PORT1
Panel socket RJ45.
2.8.4.1. Expansion port RS232
(RS232 – DCE – Data Communication Equipment)
Pin
No. Signal
name Description Data flow
direction
1 RTS Request To Send Input
2 CTS Clear To Send Output
3 DTR Data Terminal Ready Input
4 DSR Data Set Ready – connected to +3,3 V over 330 Ohm
resistor Output
5 GND GROUND – signal ground
6 RXD Receive Data Output
7 CD Carrier Detect Output
8 TXD Transmit Data Input
Circuit example:
The ER 75i connection to the PC:
•cable KD2 is connected to serial port PC (example COM1)
Router ER 75i
ETH
PORT1
PWR
Cable KD-2
Pin 1 – RTS
Pin 2 – CTS
Pin 3 – DTR
Pin 4 – DSR
Pin 5 – GND
Pin 6 – RXD
Pin 7 – CD
Pin 8 – TXD
Router ER 75i
Meter GND
RXD
TXD

DESCRIPTION
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The ER 75i connection to equipment with full-value RS232 interface:
2.8.4.2. Expansion port RS485G
Pin
No. Signal
name Description Data flow
direction
1 SGND Signal and power supply ground
2 SGND Signal and power supply ground
3 TxRx- RS485 B (-) Input/Output
4 TxRx+ RS485 A (+) Input/Output
5 TxRx- RS485 B (-) Input/Output
6 TxRx+ RS485 A (+) Input/Output
7 +12V EXT External power supply +10,8 ÷ +15,6V
8 +12V EXT External power supply +10,8 ÷ +15,6V
ATTENTION! Power supply is selected on expansion port RS485 by help jumper, 2.9.
In case of need galvanic separated the converter must have external power supply.
Circuit example:
Pin 1 – SGND
Pin 2 – SGND
Pin 3 – RS485 (-)
Pin 4 – RS485 (+)
Pin 5 – RS485 (-)
Pin 6 – RS485 (+)
Pin 7 – +12V EXT
Pin 8 – +12V EXT
Router ER 75i
Meter
DC
+
SGND
RS485 (-)
RS485 (+)
Router ER 75i
ETH
PORT1
PWR
Cable KD-2

DESCRIPTION
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2.8.4.3. Expansion port MBUS
Pin
No. Signal
name Description Data flow
direction
1 SGND Signal and power supply ground
2 SGND Signal and power supply ground
3 TxRx- MBUS B (-) Input/Output
4 TxRx+ MBUS A (+) Input/Output
5 TxRx- MBUS B (-) Input/Output
6 TxRx+ MBUS A (+) Input/Output
7 +12V EXT External power supply +10,8 ÷ +15,6V
8 +12V EXT External power supply +10,8 ÷ +15,6V
ATTENTION! External supply is for converter MBUS!
In case of need galvanic separated the converter must have external power supply.
Circuit example:
2.8.4.4. Expansion port CNT
Pin
number Signal mark Description Data flow direction
1 BIN1/CNT1 Binary input/counter input Input
2 BIN2/CNT2 Binary input/counter input Input
3 BIN3 Binary input Input
4 BIN4 Binary input Input
5 GND Signal ground
6 OUT1 Binary output (open collector) Output
7 AN1 Analogy input Input
8 AN2 Analogy input Input
The user interface CNT is for monitoring and processing of analogy and binary
signals and to control (settings) of binary signal. To disposition are 2 counter and 2 binary
inputs or 4 binary inputs, 2 analogy inputs a 1 binary output. The settings of binaries
and counters inputs by the help of firmware in which it is defined the singles inputs
and output.
Pin 1 – SGND
Pin 2 – SGND
Pin 3 – MBUS (-)
Pin 4 – MBUS (+)
Pin 5 – MBUS (-)
Pin 6 – MBUS (+)
Pin 7 – +12V EXT
Pin 8 – +12V EXT
Router ER 75i
Meter
DC
+
SGND
MBUS (-)
MBUS (+)

DESCRIPTION
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Typical connection of ER 75i measuring circuits:
2.9. Technical specification of optional PORT1
•Expansion port RS232
Name of product Expansion port RS232
Power supply Internal ....
Operating temperature -20 .. +55 CEnvironment
Storage temperature -20 .. +85 C
Emission EN 55022/B
Immunity ETS 300 342
Standards
Safety EN 60950
Max. operating bus current 15 mA
Max. bit rate 230400 bps
Max. overvoltage ±30 V
RS232 specifications
(EN 1434)
Max. total cable length
(300Bd, 200nF/km) 20 m

DESCRIPTION
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•Expansion port RS485
Name of product Expansion port RS485
External 10,8 .. 15,6 V
Internal ....
Supply power Max. 30 W
Power supply
Supply current Max. 250 mA
Operating temperature -20 .. +55 CEnvironment
Storage temperature -20 .. +85 C
Emission EN 55022/B
Immunity ETS 300 342
Standards
Safety EN 60950
Max. devices (each 1,5 mA) 256
Max. bit rate 38400 bps
Overload detection 250 mA
Short circuit strength Permanent
RS485 specifications
(EN 1434)
Max. total cable length
(300Bd, 200nF/km) 1200 m
External or internal power supply of expansion port RS485 it is can evoke by wiring
of the jumper J2 and J3 on this module. If it is necessitated external power supply of module,
it must be by jumper J2 connection pin 2 - 3 and jumper J3 must be disconnection. Internal
power supply is evoking of connection pin 1 - 2 on jumper J2 and connection jumper J3.
Jumpers is placement them to a picture below (expansion port RS485 from TOP layer). We
recommended internal power supply only in the event of, that it is not possible ensure
external power supply. If it is choose internal power supply, converter RS485G is not
galvanic separated.
The jumper circuitry for external supply The jumper circuitry for internal supply
Jumper J2
Jumper J3
Jumper J2

DESCRIPTION
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•Expansion port MBUS
Name of product Expansion port MBUS
Voltage 10,8 .. 15,6 VPower supply Supply power Max. 30 W
Operating temperature -20 .. +55 CEnvironment
Storage temperature -20 .. +85 C
Emission EN 55022/B
Immunity ETS 300 342
Standards
Safety EN 60950
Max. devices (each 1,5 mA) 30
Max. operating bus current 60 mA
Overload detection 100 mA
Short circuit strength Permanent
Bus voltage mark 36 .. 43 V
Bus voltage space 24 .. 31 V
M-Bus specifications
(EN 1434)
Max. total cable length
(300Bd, 200nF/km) 1000 m
•Expansion port CNT
Name of product Expansion port CNT
Voltage Internal 10 .. 30V
Sleep 100 µA (counter
is functional)
Power supply
Operation 2 mA
Operating temperature -20 .. +55 CEnvironment Storage temperature -20 .. +85 C
Emission EN 55022/B
Immunity ETS 300 342
Safety EN 60950
Standards
Isolation EN 60747
2x counter Max. 100 Hz,
ratio max. 1:10
2x analogy inputs 0 .. 20 mA,
Rin 100 Ohms
2x binary inputs reed contact
Inputs/Outputs
1x output (open collector) 100 mA
Voltage resistance PermanentOthers Sleeping mode Controlled

DESCRIPTION
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2.10. Modem status indication
On the front and back panel of the modem there are altogether four LED indicators,
which inform on the modem status.
Panel Color Description Description
Front Green PWR Blinking 1:9 ................... join GPRS connection
Blinking 9:1 ................... establishing of GPRS connection
Permanently on ……….. starting of the ER75i
Front Red GSM Blinking ………..GSM/GPRS communication in progress
Back Green – On ...................... selected 100 Mbit/s
Off ...................... selected 10 Mbit/s
Back Green – On........................ the network cable is connected
Blinking ………… data transmission
Off ...................... the network cable is not connected
2.11. Putting into operation
Before putting the ER75i router into operation it is necessary to connect all components
needed for the operation of your applications and the SIM card must be inserted (the modem is
off). The SIM card must support the GPRS.
The modem is put into operation by connection of the power supply to the modem.
In the default setting the modem starts to login automatically to the preset APN. The behavior
of the modem can be modified by means of the web interface which is described
in the following chapter.
2.12. Mechanical external dimensions and mounting recommendations

DESCRIPTION
19
For majority applications with built-in modem in switch board it is possible recognize
two sort of environment:
•no public and industry environment of low voltage with high interference,
•public environment of low voltage without high interference.
For both of these environments it is possible to mount modems to switch board,
the following it is not need have no examination immunity or issues in connection with EMC
according to EN 60439-1+A1.
For compliance of EN 60439 - 1 + A1 specification it is necessary observe next
assembly of the modem to the switch - board:
•round antenna we recommend to observe a distance of 6 cm from cables and metal
surfaces on every side according to the next picture due to the elimination
of interference, while using an external antenna except for the switch-board it is
necessary to fit a lightening conductor,
•before mounting a modem on sheet-steel we recommend using an external antenna,
•for single cables we recommend to bind the bunch according to the following picture,
for this use we recommend:
length of the bunch (combination of power supply and data cables) can
be maximum 1,5 m, if length of data cables exceeds 1,5 m or in the
event of, the cable leads towards the switch - board, we recommend to
use fit over - voltage protectors (surge suppressors),
with data cables they mustn't carry cables with reticular tension
~ 230 V/50 Hz,
all signals to sensors must be twisted pairs.

DESCRIPTION
20
•sufficient space must be left before individual connectors for handling of cables,
•for correct function of the modem we recommend to use in switch - board earth-
bonding distribution frame for grounding of power supply of modem, data cables
and antenna,
•the circuit diagram of the modem is on the following pictures.
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2
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