SAGEMCOM Dr. Neuhaus ZDUE-LTE-PLUS-VII User manual

ZDUE-LTE-PLUS-VII
User manual

Page 2 of 62
Copyright Statement
The articles published in this publication are protected by copyright. Translations, reprints,
reproduction and storage in data processing systems require the express permission of Sagemcom
Dr. Neuhaus GmbH.
© 2021 by Sagemcom Dr. Neuhaus GmbH
All rights reserved
Sagemcom Dr. Neuhaus GmbH
Papenreye 65, D-22453 Hamburg
Phone: [phone]
Fax.: [phone]
Internet: www.sagemcom.com/neuhaus
Subject to technical changes.
All trademarks and product names are trademarks, registered trademarks or product names of their
respective owners.
All deliveries and services are provided by Sagemcom Dr. Neuhaus GmbH based on the General
Terms and Conditions of Sagemcom Dr. Neuhaus GmbH in the current version. All information is
based on manufacturer's data. No warranty or liability for incorrect and omitted entries. The contents
of this manual and the technical specifications are subject to change without notice. The descriptions
of the specifications in this manual do not constitute a contract.
Product no. DNT8230
Doc. no. 8230AD011, version 1.1 / February 2021
As of firmware version 8.014 (ZDUE-LTE-PLUS-VII)

Content
ZDUE-LTE-PLUS-VII Page 3 of 62
Classification of the safety instructions
This manual contains information that you must observe for your personal
safety and to avoid damage to property. The instructions for your personal
safety are highlighted by a warning triangle, instructions for property damage
alone are without a warning triangle. Depending on the hazard level, the
warnings are shown in decreasing order as follows.
Danger
means that death or serious bodily injury will occur if the appropriate
precautions are not taken.
Warning
means that death or serious bodily injury may occur if the appropriate
precautions are not taken.
Caution
with warning triangle means that minor personal injury may occur if the
appropriate precautions are not taken.
Caution
without a warning triangle means that property damage may occur if the
appropriate precautions are not taken.
Attention
means that an undesirable result or condition may occur if the corresponding
note is not observed.
If several hazard levels occur, the warning for the highest level is always
used. If the warning triangle is used in a warning against personal injury, a
warning against damage to property may also be added to the same
warning.
!
!
!

Content
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General
The ZDUE-LTE-PLUS-VII complies with the European standard EN 62368-
1, Equipment for audio/video, information, and communication technology -
Part 1: Safety requirements.
The ZDUE-LTE-PLUS-VII is not suitable for connection to IT systems of the
electrical power supply.
Before using the device, carefully read the following safety instructions, the
commissioning instructions in this manual and the installation instructions.
Qualified personnel staff
The associated device/system may only be set up and operated in
conjunction with this documentation. Commissioning and operation of a
device/system may only be carried out by qualified personnel. Qualified
personnel in the sense of the safety instructions in this documentation are
persons who are authorised to commission, earth and label devices,
systems and circuits in accordance with the standards of safety technology.
Intended use
Note the following:
Warning
The device may only be used for the applications specified in the data
sheets and in this document. Faultless and safe operation of the product
requires proper transport, storage, installation and assembly as well as
careful operation and maintenance.
Disconnection from the supply circuit
Warning
In the house installation, an easily accessible, all-pole disconnecting device
is required in the supply circuit. Alternatively, a 1-pole disconnecting device
can be used in the outer conductor of the supply circuit if a distinctive neutral
conductor is introduced in the supply line. Country-specific regulations must
be observed. In Germany, the disconnecting device must at least meet the
requirements of the DIN VDE standard of the 0100 series (cf. CENELEC
HD384; IEC 60364).
!
!

Content
ZDUE-LTE-PLUS-VII Page 5 of 62
Installation fuse
Warning
An installation fuse in accordance with DIN VDE series 0100 (cf. CENELEC
HD384; IEC 60364) must be provided in the house installation, which is
adapted to the cable cross-section of the power supply line. The additional
short-circuit protection must have a disconnecting capacity of I > 1500A.
Transient overvoltages
Warning
The ZDUE-LTE-PLUS-VII is a device of overvoltage category III. If the
ZDUE-LTE-PLUS-VII likely to be exposed to higher transient overvoltages
than those of overvoltage category III when connected, additional protective
measures are required in the installation.
Radio
Warning
Never use the device in areas where the operation of radio equipment is
prohibited. The device contains a radio transmitter that may interfere with
the operation of medical electronic devices such as hearing aids or
pacemakers. Your doctor or the manufacturer of such devices can advise
you.
To prevent data media from being demagnetised, do not store floppy disks,
credit cards or other magnetic data media near the device.
Antenna mounting
Warning
The antenna of the ZDUE-LTE-PLUS-VII may only be installed and operated
at a minimum distance of 20 cm from people.
The antenna must be installed and operated in such a way that it does not
interact with other antennas or equipment.
When using a directional antenna, observe the legal limit for electromagnetic
fields (0 Hz to 300 GHz) in public spaces. For details see recommendations
of the EU Council 1999/519/EC of 12 July 1999.
Attention
When laying the antenna cable, pay attention to the bending radii. Failure to
observe the bending radii of the antenna cable will result in a deterioration of
the transmission and reception characteristics of the device. The minimum
bending radius must not be less than 5 times the cable diameter statically
and 15 times the cable diameter dynamically.
!
!
!
!

Content
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Mounting an outdoor antenna
Caution
Installation outdoors must be carried out by a qualified person. The
standards DIN EN 60728-11 VDE 0855-1 and DIN VDE 0855-300 as well
as other national installation guidelines for lightning protection must be
followed.
Connection costs
Caution
Please note that data packets are also exchanged during the (re-)
establishment of a connection, during connection attempts to the remote
terminal (e.g. server switched off, wrong destination address, etc.) as well
as to maintain a connection, which may be subject to charges depending on
the mobile phone contract.
!

Content
ZDUE-LTE-PLUS-VII Page 7 of 62
Table of contents
1How it works................................................................................................................................... 9
1.1 Intended use.......................................................................................................................... 9
1.2 Topologies............................................................................................................................. 9
1.3 Meter mode (IP server and IP telemetry mode).................................................................. 10
1.4 AT mode.............................................................................................................................. 11
1.5 Connection of meters .......................................................................................................... 11
1.6 Access protection................................................................................................................ 11
1.7 Timer and module reset ...................................................................................................... 12
1.8 Configuration (parameterisation) and firmware update....................................................... 12
2Operating elements, connections and function displays........................................................ 13
2.1 Overview.............................................................................................................................. 13
2.2 Service button...................................................................................................................... 13
2.3 DIP switch............................................................................................................................ 13
2.4 Function indicators ( LEDs)................................................................................................. 14
2.5 Connections on the terminal block, RJ45 socket................................................................ 15
3Commissioning............................................................................................................................ 16
3.1 Inserting the SIM card......................................................................................................... 16
3.2 Connect meter..................................................................................................................... 17
3.3 Connecting the ZDUE-LTE-PLUS-VII to the supply voltage............................................... 17
3.4 Attach and connect the antenna.......................................................................................... 18
3.5 Configure the device if required .......................................................................................... 19
3.6 Setting and Unlocking the SIM PIN..................................................................................... 19
4Interfaces...................................................................................................................................... 20
4.1 The mobile radio interface................................................................................................... 20
4.2 Meter interfaces................................................................................................................... 20
4.3 Interface types..................................................................................................................... 21
4.4 Auxiliary voltage source ...................................................................................................... 23
5Operation in AT mode ................................................................................................................. 24
6Operation in meter mode............................................................................................................ 25
6.1 Communication according to EN 62056-21 ........................................................................ 25
6.2 Establishing a connection to the mobile network................................................................ 26
6.3 IP server mode.................................................................................................................... 29
6.3.1 Parameter.................................................................................................................. 30
6.3.2 Access protection...................................................................................................... 30
6.4 IP telemetry mode ............................................................................................................... 31
6.4.1 Parameter.................................................................................................................. 32
7Configuration ............................................................................................................................... 33
7.1 Parameter............................................................................................................................ 33
7.2 Writing and reading the parameters.................................................................................... 34
7.3 Parameter classes............................................................................................................... 35
7.3.1 Representation.......................................................................................................... 35
7.3.2 Class 79 - General operating parameters................................................................. 36
7.3.3 Classes 60/61 - Access parameters LTE/GPRS ...................................................... 38
7.3.4 Class 82 - Parameter IP server................................................................................. 40
7.3.5 Class 70 - IP Telemetry Client (1st IPT Master) ....................................................... 43
7.3.6 Class 76 - P-Telemetry Client (2nd IPT Master)....................................................... 45
7.3.7 Class 78 - Delay parameters..................................................................................... 46
8Register data set of the ZDUE-LTE-PLUS-VII............................................................................ 47
9Communication commands according to EN 62056-21 .......................................................... 49
9.1 Error messages................................................................................................................... 49
9.2Set password....................................................................................................................... 50
9.3 Parameterisation commands............................................................................................... 50
9.3.1 Write class (complete)............................................................................................... 51
9.3.2 Class reading in sub-blocks...................................................................................... 52
9.3.3 Parameter transfer command ................................................................................... 52
9.3.4 Time / date commands.............................................................................................. 53

Content
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9.4 Operating status word......................................................................................................... 53
9.4.1 Read status word ...................................................................................................... 55
9.4.2 Reset status word...................................................................................................... 55
9.5 Service commands.............................................................................................................. 55
9.5.1 Parameter reset to factory configuration................................................................... 55
9.5.2 Remote reset............................................................................................................. 55
9.5.3 Write PIN................................................................................................................... 56
9.5.4 Read out parameter checksum................................................................................. 56
9.5.5 Read out the firmware version of the ZDUE............................................................. 56
9.5.6 Read the firmware version of the radio module........................................................ 56
9.5.7 Read version of the booter........................................................................................ 56
9.5.8 Read out the position of the DIP switches/parameter status.................................... 57
9.5.9 Read mobile radio operating/module parameters..................................................... 57
9.5.10Read out unique serial number:................................................................................ 57
9.5.11Read LTE/GPRS operating parameters.................................................................... 58
10 Maintenance/troubleshooting..................................................................................................... 59
10.1 Maintenance........................................................................................................................ 59
10.2 Troubleshooting................................................................................................................... 59
11 Transport, storage and disposal................................................................................................ 60
11.1 Transport............................................................................................................................. 60
11.2 Storage................................................................................................................................ 60
11.3 Disposal............................................................................................................................... 60
12 Technical data.............................................................................................................................. 61

How it works
ZDUE-LTE-PLUS-VII Page 9 of 62
1 How it works
1.1 Intended use
The ZDUE-LTE-PLUS-VII is a meter data transmission device. It is used
for remote query and remote monitoring of electricity meters as well as
meters for other media.
Data transmission for remote retrieval and remote monitoring takes place via
an IP connection of a mobile network (LTE, GSM/GPRS or UMTS).
Attention
The ZDUE-LTE-PLUS-VII is not suitable for communication via GSM dial-up
connections (CSD = Circuit Switched Data).
1.2 Topologies
The ZDUE-LTE-PLUS-VII uses the IP data service of a mobile network (LTE,
GSM/GPRS, UMTS) for data transmission for remote enquiry and remote
monitoring.
The ZDUE-LTE-PLUS-VII offers a choice of two communication modes ...
... IP server mode
Mobile
Radio
Net
Head-End-System
Meter data and configuration
via TCP/IP
Internet /
Intranet
ZDUE with
TCP/IP Server
Meter
... IP telemetry Mode (IPT)
Mobile
Radio
Net
Head-End-System
Meter data and configuration
via IP telemetry connection
Internet /
Intranet
ZDUE as
IP-Telemetry-Client
Meter
IPT-Master, e.g.
TAINY SwitchingCenter

How it works
Page 10 of 62
1.3 Meter mode (IP server and IP telemetry mode)
In meter mode, the ZDUE-LTE-PLUS-VII connects independently to the
mobile network after a restart and establishes operational readiness. For this
purpose, the ZDUE-LTE-PLUS-VII must be parameterised beforehand.
Communication with the head end system is either via a TCP/IP connection
with the ZDUE-LTE-PLUS-VII as the server or via an IP telemetry
connection.
Transparent
communication
In IP server mode and in IP telemetry mode, the ZDUE-LTE-PLUS-VII
receives data from the head end system and forwards them to the
connected meters without changing their content.
In the opposite direction, the ZDUE-LTE-PLUS-VII data from the connected
meters and sends this data to the head end system without changing its
content.
Control /
parameterisation per
EN 62056-21
If the ZDUE-LTE-PLUS-VII recognises parameterisation commands in the
format according to EN 62056-21 in the data coming from the head end
system which are addressed to the ZDUE-LTE-PLUS-VII itself, these
commands will not be forwarded to the connected meters but answered by
the ZDUE-LTE-PLUS-VII.
IP server mode
The integrated mobile radio module of the ZDUE-LTE-PLUS-VII establishes
an IP data connection to the mobile radio network after a restart.
IP server mode
In IP server mode, the ZDUE-LTE-PLUS-VII automatically sets up an
IP server.
The head end system can then establish a TCP/IP connection to this
server.
Telegrams can be exchanged between the head end system and the
meter or the ZDUE-LTE-PLUS-VII via this TCP/IP connection.
IP telemetry mode
IP telemetry mode
In IP telemetry mode, the ZDUE-LTE-PLUS-VII connects to an IPT
master via an IP telemetry connection.
The head end system that is also connected to the IPT master can
then connect to the ZDUE-LTE-PLUS-VII via an IPT-CS connection.
Telegrams can be exchanged between the head end system and the
meter or the ZDUE-LTE-PLUS-VII via this IP telemetry connection.
The ZDUE-LTE-PLUS-VII reacts to the telegrams transmitted by the head
end system as follows:
It connects to the meters connected to its interfaces (CL1, RS-232,
RS-485).
It accepts and executes parameterisation commands.

How it works
ZDUE-LTE-PLUS-VII Page 11 of 62
1.4 AT mode
The AT mode allows and requires the direct control of the mobile radio
module integrated in the ZDUE-LTE-PLUS-VII by means of AT commands.
The AT commands can be entered via a meter interface.
All other functions (e.g. IP server mode, IP telemetry mode, control /
parameterisation per EN 62056-21 etc.) are not available in AT mode.
1.5 Connection of meters
The ZDUE-LTE-PLUS-VII following interfaces for connecting meters: CL1,
RS232 and RS485. The maximum permissible number of meters can be
connected to each interface at the same time.
CL1
RS-485
RS-232
Rx
Tx
GND
DCD
max. 1000 m
max. 32 meters
approx. 4
meters
CL0
CS
(20 mA)
Interfaces
Head-End-System
with communication
software
Modem
ZDUE-GSM-PLUS-V
1 meter
Modem
Auxiliary
power
source
(9V)
HS+
HS-
In addition, the device has an auxiliary voltage source (9V) for supplying
meters.
All meters connected to the ZDUE-LTE-PLUS are simultaneously connected
to the Head-End-System via a single connection. The Head-End-System
addresses the connected meters directly and communicates with them.
The ZDUE-LTE-PLUS-VII only passes the data in both directions and, if
necessary, adjusts the bit rate and character format.
1.6 Access protection
... by password
To protect against unauthorised access, a password query can be
configured. In this case, the ZDUE-LTE-PLUS-VII requests the agreed
password from the remote terminal, which must be given to it within the
configured time period (password timeout). If the password is incorrect or the
timeout is exceeded, the ZDUE-LTE-PLUS-VII will disconnect from the
remote terminal. The password can be parameterised.

How it works
Page 12 of 62
1.7 Timer and module reset
The ZDUE-LTE-PLUS-VII does not have a real-time clock, but a timer is kept
based on and with the accuracy of the processor quartz.
This timer controls the automatic module reset function, which can be
activated and configured in parameter class 79.
The automatic reset cycle starts when the device is switched on, i.e. the first
module reset takes place after the parameterised period has elapsed from
the start of the device. Further module resets then follow at intervals defined
by the parameterised period.
The time for the daily watchdog, which is also to be configured in parameter
class 79, is not used by the ZDUE-LTE-PLUS-VII.
1.8 Configuration (parameterisation) and firmware update
Configuration via
software
The configuration is done via configuration software (e.g. the
ZDUEParametrierTool). With the help of this software, parameterisation
commands are transmitted to the ZDUE-LTE-PLUS-VII.
The parameterisation commands can be transmitted to the ZDUE-LTE-
PLUS-VII via the mobile network (remote configuration) or are transmitted
directly via the RS-232 interface (local configuration) with a PC connected
there.
Configuration via
DIP switches
The operating mode of the ZDUE-LTE-PLUS-VII can be switched between
meter mode and AT mode via the DIP switch inside the housing. See
chapter 5and chapter 6.
Firmware update
A firmware update can be carried out via configuration software (e.g. the
ZDUEParametrierTool) from a computer that is locally connected directly to
the RS-232 interface of the ZDUE-LTE-PLUS-VII.

Operating elements, connections and function displays
ZDUE-LTE-PLUS-VII Page 13 of 62
2 Operating elements, connections and function displays
2.1 Overview
To insert the SIM card and to change the operating mode via DIP switch, the
device must be opened. The following diagram provides an overview of the
internal components of the device that are important for the user:
1
Mobile phone status/error LED
2
Status LEDs
3
Service bar (optional)
4
DIP switch
5
SIM Card holder
6
Antenna connection (SMA or FAKRA-D)
7
Service Button
8
Terminal Block (RS485)
9
RS232 interface
10
Terminal block
11
Current Loop LED
2.2 Service button
The service button can be used to reset all device parameters to factory
settings as well as for a simplified readout of the firmware version. The
service button is only effective in meter mode.
Reset to factory
setting
Pressing and holding the service button once for more than five seconds
during operation will delete the parameterisation set in the device via
EN62056-21 commands. After releasing the button, the ZDUE-LTE-PLUS-
VII restarts and adopts the default settings specified in the device software
when booting.
Output of the
firmware version
during booting
If the service button is kept pressed during switch-on, the ZDUE-LTE-
PLUS-VII the current firmware version of the device via the serial interface.
The data format of the connected terminal program must be set to 19200
baud 8N1.
2.3 DIP switch
With the DIP switch it is possible to switch between meter mode and AT
mode. See chapter 5and chapter 6.

Operating elements, connections and function displays
Page 14 of 62
2.4 Function indicators (LEDs)
To check the operating status, the device is equipped with 3 LEDs. They are
used to indicate the functions currently being performed and the respective
status.
LED
Colour / Action
Meaning
Power
•Green & Orange under Light
Dome
Permanently green
Operating voltage is present
Green, flashing orange
Network searching
Orange, flashing green
Idle, logged in to the mobile radio network
Green, flickering orange
Data transfer is ongoing
If the SIM card is missing or defective, the two LEDs go out after a short time.
LED
Colour / Action
Meaning
Status/Error
•Orange
3s on / 3 x short flashing
Boot phase, network search
3s on / 2 x short flashing
Error condition
3s on / 1 x brief flashing
SIM/PIN error
3s off / 1x short flashing
Field strength low
3s off / 2x short flashing
Field strength moderate
3s off / 3x short flashing
Field strength good
3s off / 4x short flashing
Field strength high
Permanently on
LTE/GPRS connection active.
Permanently on
Field strength unknown
IP server mode: An existing TCP/IP connection is not displayed.
IP telemetry mode: An existing IP telemetry connection is not displayed.
AT mode: This LED is not effective (off) in AT mode.
LED
Colour / Action
Meaning
Current Loop
•Green
CL meter(s) is/are connected, or CL
interface is bridged
•From
Current loop is interrupted

Operating elements, connections and function displays
ZDUE-LTE-PLUS-VII Page 15 of 62
2.5 Connections on the terminal block, RJ45 socket
The connection of the ZDUE-LTE-PLUS-VII to the supply voltage as well as
the connection of the meters to the ZDUE-LTE-PLUS-VII are made via the 9-
pole terminal block (supply, auxiliary voltage, CL, RS-485) as well as an
RJ45 socket (RS-232).
L N HS-HS+ RTX- RTX+ RT- RT+
RJ45
Terminal block:
PIN no.
Signal
Function/Comment
1
L
Mains voltage connection
2
N
Mains voltage connection
3
Not documented
4
HS-
Auxiliary voltage -
5
HS+
Auxiliary voltage +
6
RTX-
Current Loop CL1 -
7
RTX+
Current Loop CL1 +
8
RT-
RS-485 RT-
9
RT+
RS-485 RT+
RJ45:
2
DSR
Positive RS-232 voltage (output; always active)
4
GND
Signal GND / cable shield
5
TxD
RS-232 TxD (output)
6
RxD
RS-232 RxD (input)

Commissioning
Page 16 of 62
3 Commissioning
To put the ZDUE-LTE-PLUS-VII operation, proceed as follows:
Page
1.
Read the safety instructions at the beginning of this document.
4
2.
Insert SIM card
16
3.
Configure the ZDUE-LTE-PLUS-VII if required
33
- Connect the ZDUE-LTE-PLUS-VII supply voltage
17
- Carry out the configuration
33
- Disconnect the ZDUE-LTE-PLUS-VII from the supply voltage again.
17
3.
Connect meter
17
4.
Attach and connect the antenna
18
5.
Connect the ZDUE-LTE-PLUS-VII supply voltage
17
3.1 Inserting the SIM card
Warning
Never insert or remove the SIM card during operation!
PIN
The factory setting of the ZDUE-LTE-PLUS-VII is such that SIM cards with
PIN 0000 are accepted.
If the SIM card has a different PIN, you can adjust the setting of the ZDUE-
LTE-PLUS-VII in parameter class 79 to the PIN of the SIM card (see
Chapter 7.3.2). Alternatively, you can change the PIN of the SIM card with a
mobile phone.
With some network operators it is also possible to switch off the PIN query of
the SIM card. In this case, the PIN can be arbitrary, as it is not considered.
To insert the SIM card, proceed as follows:
1.
Disconnect the device from the supply voltage at all
poles if it is connected there.
2.
Loosen the screw of the clamp cover and remove the
clamp cover.
3.
Then remove the appliance lid.
4.
Open the SIM card holder and slide the SIM card into
the flap of the holder. The gold-plated contacts of the
SIM card must be on the gold-plated contacts of the
holder when the SIM card holder is closed.
5.
Close the flap of the SIM card holder again and lock the
flap by carefully sliding it to the left. You will feel it click
into place.
6.
Replace the device lid and the clamp lid.
!
SIM-
Card holder

Commissioning
ZDUE-LTE-PLUS-VII Page 17 of 62
3.2 Connect meter
The ZDUE-LTE-PLUS-VII has the meter interfaces listed below. Connect the
meters to the terminal block according to the following illustrations. All
interfaces can be used simultaneously.
CL1 interface
This 20mA current interface (current
loop) is used to connect meters with
current interface according to EN 62056-
21.
About 4 meters can be connected to this
interface.
Further information: →Page 21
ZDUE
Meter 1
CL1+
Meter 2
Meter n
CL1-
RS-232 interface
It is used to connect a meter with an
interface according to V.24/V.28.
A maximum of 1 meter can be connected
to this interface.
Further information: →Page 22
ZDUE
Meter 1
TX
RX
DSR
GND
RS-485 interface (2-wire)
It is used to connect meters with RS-485
interface.
A maximum of 32 transceivers (meters)
can be operated on the bus.
The bus connection is terminated to
Z=120 Ω (nominal) (RT+ to RT-) and the
cable length is limited to 1000m.
The interface is electrically isolated from
the mains connection.
Further information: →Page 21
ZDUE
Meter 1
Meter 2
Meter n
RT-
RT+
3.3 Connecting the ZDUE-LTE-PLUS-VII to the supply voltage
The connection to the supply voltage is made via the terminals L and N of
the terminal block. These terminals are designed for cables with a cross-
section of up to 1.5 mm².
L N HS- HS+ RTX- RTX+ RT- RT+
RJ45

Commissioning
Page 18 of 62
The ZDUE-LTE-PLUS-VII can be operated with both AC and DC voltages.
Supply voltage
Nominal values
Maximum values
AC voltage:
100VAC to 230VAC without
changeover (50/60 Hz)
76VAC to 253VAC
DC voltage (reverse polarity
protected):
60VDC to 100VDC without
changeover
54VDC to 110VDC
The device complies with protection class 2. The supply of the interfaces is
galvanically separated from the electronics.
3.4 Attach and connect the antenna
Internal and external antennas of the ZDUE-LTE-
PLUS-VII may only be installed and operated at a
minimum distance of 20 cm from people.
The antennas must be installed and operated in
such a way that they do not interact with other
antennas or equipment.
When using a directional antenna, observe the
legal limit for electromagnetic fields (0 Hz to 300
GHz) in public spaces. For details see
recommendations of the EU Council
1999/519/EC of 12 July 1999.
Installation outdoors must be carried out by a
qualified person. The standards EN 60728-11
and VDE 0855-300 as well as other national
installation guidelines for lightning protection
must be followed.
Antenna properties
Observe the instructions enclosed with your antenna. The antenna must
have the following characteristics: Passive, gain < 2.3 dBi, VSWR < 2:1,
impedance 50 Ω, matched for the frequency bands used. If the antenna does
not meet these requirements, signal quality and matching will be adversely
affected.
Use antennas from the ZDUE's range of accessories.
The antenna is connected to the antenna socket (ANT) of the SMA or
FAKRA-D type. The antenna must be installed in such a way that a high field
strength is achieved. Make sure that there are no large metal objects (e.g.
reinforced concrete) in the vicinity of the antenna, as these adversely affect
the signal quality.
Antenna socket

Commissioning
ZDUE-LTE-PLUS-VII Page 19 of 62
3.5 Configure the device if required
Basic setting
On delivery
The ZDUE-LTE-PLUS-VII is delivered with a predefined factory setting.
Depending on requirements, it must be reconfigured. This is
remotely via an LTE/GPRS connection
locally via the RS-232 interface (if there is no active LTE/GPRS
connection)
possible.
Configuration
options
Among other things, the password protection, interface speeds, data formats
and the PIN to be used can be parameterised.
For detailed information on parameterisation, see chapter 7.
3.6 Setting and Unlocking the SIM PIN
Parameterisation
options
The PIN can be set as follows:
remotely via an LTE/GPRS connection
locally via the RS-232 interface (if there is no active LTE/GPRS
connection)
PIN-less SIM card
In the case of PIN-less SIM cards, the PIN query is bypassed, the radio module
does not wait for the PIN to be entered but attempts to log into the mobile radio
network immediately.
Behaviour with
correct SIM PIN
If the PIN function of the SIM card used is activated and the PIN on the SIM
card used matches the parameterised PIN, the device automatically attempts
to log into the mobile radio network.
Behaviour in the
event of an
incorrect SIM PIN
If the PIN check fails, it is repeated once. If the repeated PIN check also fails,
the device is blocked for further attempts (PIN-ERROR status), so that
operation with a SIM card with the correct number is also no longer possible.
The status/error LED signals a SIM/PIN error (see chapter 2.4).
After disconnecting and reconnecting the power supply, this state is
maintained. This prevents the SIM card from being blocked after a possible
third failed attempt and can only be unlocked again by using the PUK
(Personal Unblocking Key).
Unlocking the
machine
To unlock the ZDUE-LTE-PLUS-VII, a SIM card with deactivated PIN function
must be inserted into the device. After start-up, the device attempts to log into
the mobile network, and the PIN-ERROR status is also reset.
Alternatively, the ERROR status can be reset with the service command for
setting a new PIN (see chapter 9.5). The PIN parameterised in the device is set
at the same time.

Interfaces
Page 20 of 62 ZDUE-LTE-PLUS-VII
4 Interfaces
4.1 The mobile radio interface
Properties
Communication with the mobile radio network takes place via an integrated
radio module. The radio module supports the following mobile radio
technologies: LTE (4G), UMTS (3G), GSM/GPRS (2G).
The data is transmitted using the TCP/IP protocol.
4.2 Meter interfaces
Parameterisation
The parameterisation of the meter interfaces of the ZDUE-LTE-PLUS-VII is
done for all of them together, i.e. all set interface parameters apply equally
to all meter interfaces.
The following values are supported by the meter interfaces:
Data format:
Default: 7E1
Adjustable: 7E1, 8N1, 8E1
Handshake:
No hardware/software handshake.
Interface speed:
Default: 300 baud (Mode C)
Adjustable: 300, 600, 1200, 2400, 4800, 9600, 19200,
38400, 57600 baud.
However, the speed of the meter interfaces should
not exceed 19200 bit/s, otherwise data loss may
occur.
Number of meters
Meters can be connected and operated simultaneously at all interfaces, but
only up to the specified maximum number.
When communicating with the connected meters, all interfaces are
addressed simultaneously, i.e. the application (e.g. head end system)
cannot address any interface specifically. This makes it essential to address
the meters unambiguously to prevent simultaneous transmission of data by
several meters.