Campbell IPn3Gb Instruction Manual

INSTRUCTION MANUAL

IPn3Gb

Cellular Modem

July 2014

Copyright © 2014

Campbell Scientific (Canada) Corp.

Table of Contents

PDF viewers: These page numbers refer to the printed version of this document. Use the
PDF reader bookmarks tab for links to specific sections.

1. Introduction................................................................1

2. Cautionary Statements..............................................1

3. Initial Inspection.........................................................1

4. Specifications.............................................................2

5. Installation..................................................................3

5.1 Base Station Requirements for IPn3Gb Cellular Modem....................4

5.2 Datalogger Site Equipment..................................................................4

5.3 Configuration.......................................................................................5

5.3.1 Support Materials..........................................................................5

5.3.2 Getting Started..............................................................................5

5.3.3 Connecting for Configuration.......................................................6

5.3.3.1 USB....................................................................................6

5.3.3.2 Ethernet..............................................................................6

5.3.4 Network Provision........................................................................7

5.3.4.1 Bell.....................................................................................7

5.3.4.1.1 Static IP ...................................................................7

5.3.4.1.2 Dynamic IP..............................................................8

5.3.4.2 Telus...................................................................................8

5.3.4.2.1 Static IP ...................................................................8

5.3.4.2.2 Dynamic IP..............................................................8

5.3.4.3 Rogers ................................................................................ 8

5.3.4.3.1 Dynamic IP..............................................................8

5.3.5 Dynamic DNS (DDNS) ..............................................................10

5.3.5.1 DDNS Example................................................................11

5.3.6 COM1.........................................................................................13

5.3.7 Firewall.......................................................................................14

5.3.8 Security .......................................................................................15

5.3.9 Configuration Backup.................................................................16

5.3.10 Load Configuration.....................................................................17

5.4 LoggerNet Setup................................................................................17

5.5 Wiring and Connections.....................................................................19

5.5.1 Modem Connection using the L18663 Null Modem Cable........20

5.5.2 Modem Connection using the SC932A.......................................20

5.5.3 Modem Connection using Ethernet.............................................20

5.6 Test the Cellular Connection..............................................................20

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6. Operation..................................................................22

6.1 Program the Modem.......................................................................... 22

6.2 Connectors and Indicators................................................................. 22

6.2.1 Modem Front.............................................................................. 22

6.2.2 Modem Back.............................................................................. 23

6.3 Hardware........................................................................................... 24

7. Troubleshooting....................................................... 26

Figures

Figure 5—1 SC932A interface...................................................................... 20

Figure 6—1 Front view of the IPn3Gb Cellular Modem.............................. 22

Figure 6—2 Rear view of the IPn3Gb Cellular Modem............................... 23

Figure 6—3 Antennas for use with the IPn3Gb Cellular Modem................. 25

Tables

Table 5 -1. Modem Connection to Datalogger.............................................. 19

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IPn3Gb Cellular Modem

1. Introduction

This manual provides information for interfacing the Microhard IPn3Gb
Cellular Modem to Campbell Scientific dataloggers. Please note that this
manual will focus on the use of the IPn3Gb cellular modem on the Bell, Telus,
and Rogers networks.

The IPn3Gb Cellular Modem is a high-speed interface optimized for use on 3G
architecture. The modem is accessed through the Internet using TCP/IP
communication pr otocols using a Public Dynamic or Static I P address.

The IPn3Gb cellular modem offers two-way data exchange with a base station
PC via the HSPA+ network.

2. Cautionary Statements

x Although the IPn3Gb is designed to be a rugged and reliable device for

field use, care should be taken when handling or moving it to avoid
damage.

x There are no user-serviceable parts and any attempt to disassemble the

device will void the warranty.

x To avoid possible damage an antenna should be connected to the modem

prior to applying power.

3. Initial Inspection

x Upon receipt of the IPn3Gb Cellular Modem, inspect the packaging

x The IPn3Gb is shipped with a L8125 (2.5 mm flat-blade) screwdriver

and contents for damage. File any damage claims with the shipping
company. Immediately check package contents against the shipping
documentation. Contact Campbell Scientific about any discrepancies.

and power leads (2ft each).

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4. Specifications

Supported bands: UMTS/HSPA FDD Bands [MHz] – Six

Data features: HSDPA cat 14, up to 21.1 Mb/s DL for

TX Power: WCDMA/HSDPA/HSUPA Power Class

band
Band I (2100MHz), Band II (1900MHz),
Band IV (1700MHz), Band V (850 MHz),
Band VI (800MHz), Band VII (900MHz)
3GPP Release 7

5.76 Mb/s uplink, 21.1 Mb/s downlink, or

5.76 Mb/s uplink, 7.2 Mb/s downlink

LISA-U230
GPRS multi-slot class 125, coding
scheme CS1-CS4, up to 85.6 kb/s DL/UL
EDGE multi-slot class 125, coding
scheme MCS1-MCS9, up to 236.8 kb/s
DL/UL
CSD GSM max 9.6 kb/s
UMTS max 64 kb/s

x Power Class 3 (24 dBm) for

WCDMA/HSDPA/HSUPA
mode

GSM/GPRS Power Class

x Power Class 4 (33 dBm) for

GSM/E-GSM bands

x Power Class 1 (30 dBm) for

DCS/PCS bands

Edge Power Class

x Power Class E2 (27 dBm) for

GSM/E-GSM bands

x Power Class E2 (26 dBm) for

DCS/PCS bands

Current Consumption: Idle Current:

Without Ethernet Device: 70mA
With Ethernet Device: 85mA

UMTS Active Connection Current:
Average Serial Data: 75mA
Average Ethernet: 94mA
Peak Tx: 275mA

Serial Interface: RS-232, RS-485, RS422

Serial Baud Rate: 300bps to 921kbps

USB: USB 2.0, USB Console Port, USB to

Serial Data Routing, USB to Ethernet
Data Routing

2

Ethernet: 10/100 BaseT, Auto – MDI/X, IEEE

802.3

SIM Card: 1.8 / 3.0V

PPP Characteristics: Dial on Demand, Idle Time

Network Protocols: TCP, UDP, TCP/IP, TFTP, ARP, ICMP,

DHCP, HTTP, HTTPS
FTP, DNS, Serial over IP, QoS

Management: Local Serial Console, Telnet, WebUI,

SNMP, FTP & Wireless Upgrade,
RADIUS authentication, IPsec VLAN

Diagnostics: Temperature, RSSI, remote diagnostics

Input Voltage: 7 to 30 Vdc

Operating Temperature: -40 to +85°C

Humidty: 5% to 95% non-condensing

Dimensions: 56mm x 97mm x 37mm

Weight: Approximately 245 grams

Antenna(s): Main TX/RX: SMA Female

Connectors: Data: DE-9 Female

Ethernet: RJ-45

*

, SSH*, SNMP,

5. Installation

What you need:

x Determine coverage at the site for your chosen service provider. Coverage

maps are available on each provider’s website. It is also possible to search
for “Canadian cellular tower maps” for information on tower locations and
possible cove rage.

x A Public IP (Dynamic or Static) subscription or access added to the

account with the chosen Service Provider on their HSPA network. Service
Providers tend to have different names or descriptions for these service
add-ons. Based on the service provider here are some key phrases:

o Bell:

Public Dynamic IP access
Public Static IP access

3

o Telus

Dynamic Connect (Public)
Static Connect (Public)

o Rogers – Public Dynamic IP subscription

o Data plan type: “Flex Data for Tablet” – (all 3 Service

Providers)

NOTE

It is recommended to discuss the account types available and their
requirements with your intended Service Provider before
purchasing the IPn3Gb Cellular Modem.

What you receive from the Service Provider:

x SIM card (standard size)
x 10-digit Cellular Telephone Number
x Access Point Name (APN)
x User name
x Network Password for use with User Name (optional based on

configuration)

5.1 Base Station Requirements for IPn3Gb Cellular Modem

A PC running Campbell Scientific’s Loggernet or PC400 software, with access
to the Internet.

5.2 Datalogger Site Equipment

x IPn3Gb Cellular Modem with power cable (included).

x Antenna - T he antenna chosen for use in your app lication must be

connected to the “Antenna” connector of the IPn3Gb Cellular Modem. Do
not connect the antenna to the Rx Diversity connector.

x Datalogger – CR1000, CR3000, CR800 series, CR200X series.

x L18663 Null Modem Cable – required if connecting the modem to the RS-

232 port of a CR1000, CR3000, CR800 series, or CR200X series
dataloggers

x L28900 Ethernet Cable – connect the modem Ethernet port to a PC or

other Ethernet device. Commonly used to configure the modem. The
IPn3Gb Ethernet port is auto-sensing so a cross-over cable can also be
used. (optional)

x C2809 USB Cable – connect the modem USB port to a PC in order to

configure the modem. (optional)

4

x C2675 IPn3Gb Mount Kit – Used to mount the modem in the datalogger

enclosure with the use of DIN rail and DIN rail adaptors.

x SC932A Interface – required if connecting the modem to the CS I/O port

of a datalogger.

NOTE

If you have a black SC12 cable that is not Rev1 or newer (indicated on cable), it
is a CS I/O cable and will not work for RS-232. Connect the black SC12 cable
between the datalogger and the SC932A . Use a 9pin serial cable or a blu e ribbon
cable between the modem and the SC932A

5.3 Configuration

5.3.1 Support Materials

Download manual (support documentation) from the Campbell Scientific
(Canada) website. Review documents, and install USB driver if this will be
your method of communication with the modem. The USB driver is available
for download at:

http://www.campbellsci.ca/19_1_1019

5.3.2 Getting Started

1. SIM card – insert the card in the correct orientation into the slot located on
the front of the modem. You will know the card is properly installed when
you hear the card click into place.

2. Antenna – connect the antenna to the “antenna” jack on the back of the
modem. This should be done prior to applying power.

5

3. Connect the power cable between the Vin & GND terminals on the
modem and the power source.

4. Connect the USB (C2809), Ethernet (L28900) or equivalent Ethernet cable
between the modem and the PC to start the configuration process.

5.3.3 Connecting for Configuration

Note

5.3.3.1 USB

Note

5.3.3.2 Ethernet

Be sure to allow the modem to warm up before trying to connect.
A minimum warm up time of 2 minutes is recommended.

In order to configure the modem you will need to connect via USB or Ethernet
using a web browser (e.g. Internet Explorer).

Requires the use of related USB

x Enter the following IP address into the navigation bar of the web browser:

192.168.111.1

x Enter User ID and Password

admin/admin

x Enter the following IP address into the navigation bar of the web browser:

192.168.0.1

x Enter User ID and Password

admin/admin

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5.3.4 Network Provision

NOTE

The network provision configurations are specific to the Service Provider. The
remaining configuration steps are the same for Bell, Telus, or Rogers users.
Details related to Dynamic and Static IP configurations are listed below.

To provision the modem on the service provider network the following
information will need to be entered into the “Config” tab under “Carrier”.
Details provided below for specific service providers address the use of public
dynamic IP services.

It is possible to use a Public Static IP with the modem. For static IP accounts,
enter the static IP in “Static IP address”. Please contact your service provider
for details related to the required APN for static IP accounts.

5.3.4.1 Bell

5.3.4.1.1 Static IP

x Access Point Name (APN): For example, static.bell.ca

Static APNs differ across Canada; ask Bell Service Provider for
appropriate APN

x User Name: 10-digit phone#@static.bell.ca

x Password: required; ask Bell Service Provider

x Submit. (Save)

7

5.3.4.1.2 Dynamic IP

5.3.4.2 Telus

5.3.4.2.1 Static IP

x Access Point Name (APN): public.bell.ca

Across Canada, the APN for a Dynamic IP is public.bell.ca

x User Name: 10-digit phone#@public.bell.ca

x Password: not required

x Submit. (Save)

x APN: For example, static.telus.com

Static APNs differ across Canada; ask Telus Service Provider for
appropriate APN

x User Name: 10-digit phone#@static.telus.com

x Password: required; ask Telus Service Provider

x Submit. (Save)

5.3.4.2.2 Dynamic IP

5.3.4.3 Rogers

5.3.4.3.1 Dynamic IP

x Access Point Name (APN): connect.telus.com

Across Canada, the APN for a Dynamic IP is connect.telus.com

x User Name: 10-digit phone#@connect.telus.com

x Password: not required

x Submit. (Save)

x APN: vpn.com

x User Name: wapuser1

x Password: wap

x Submit. (Save)

8

When provision details are saved to the modem, it should provision on the
network. This can be confirmed under System | Summary.

x Active Status = Call in progress
x Network = Name of Service Provider
x SIM Card = Ready

Check RSSI value for signal strength. Signal strength should be greater than­105dBm; the preferred signal strength is greater than -95.

9

5.3.5 Dynamic DNS (DDNS)

NOTE

If your modem is configured with a Static IP, skip this step and move on to
Section 5.3.6. If your modem is configured with a Dynamic IP, complete this
step.

In order to complete this step of the configuration, you must sign-up online for
a Dynamic Domain Name System (DDNS) service. Free services are
available, but depending on your application or network size a paid service
may be recommended. An example of how to setup a DDNS service is shown
in Section 5.3.5.1.

Once a DDNS account has been created, proceed with the DDNS
configuration.

x Navigate to the “Config” tab under “Carrier”

x Select “DDNS Config” to expand this configuration option

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5.3.5.1 DDNS Ex ample

x Choose from one of the following providers:

x Enable “DDNS Status”

x Select “Service name” of the provider you have signed up with. Enter

related domain, User ID, and Password

x Submit

The following is an example of how to setup a free DDNS service. The steps
listed are specific to this DDNS provider and may not reflect the steps required
to setup a DDNS from a different provider.

x Of the available DDNS service providers select the one that best

meets your needs. Crea te an account and login.

11

x Select the DNS manager link

x Add an appropriate domain name and choose a suffix from the drop

down list.

x Click “Add Domain”. If the combination is available the domain will

be added to your account. If the domain is not available select again
until you find a domain.

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5.3.6 COM1

x Be sure to have the domain, account username, and password details

available so that they can be entered into the modem configuration, as
well as the LoggerNet setup.

x Enter details into the modem configuration

In order for the modem to communicate with a Campbell Scientific datalogger,
the COM1 (data) port must be properly configured. The parameters discussed
here are re levant for serial communications; however, setting s may vary
depending on the datalogger used. All other parameters should remain as
default settings.

x Under COM1 navigate to the ‘Config’ tab.

x Change data baud rate to 115.2 Kbps, or as required by the datalogger

x Character Timeout = 50

x Protocol config = TCP server

x Local listing port = 6785 (default datalogger PakBus port)

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NOTE

In order to avoid confusion or unwanted communication, it is recommended to
change this port to match the last 4 digits of the modem’s cellular telephone
number. This must be done in the modem (COM1 & Firewall), the datalogger,
and LoggerNet.

x Submit (Save)

5.3.7 Firewall

The Firewall is used to control different types of access allowed by the modem
to either the cellular network or datalogger. The configuration of the Firewall
will help avoid unauthorized access and data useage. This setup can be used
with all service providers. The following assumes a RS-232 or CS I/O
connection to modem ‘Data’ port.

x Ensure Firewall Status is set to ‘Enable’. This must be enabled in

order to proceed with the remaining configuration.

x Set WAN request to ‘Block’

x Click the ‘Apply’ button

14

With the Firewall enabled it is possible to define specific traffic that will be
allowed.

x Navigate to the ‘Rules’ tab

x Enter a name for the rule

x Configure the ‘Destination PORT’ to match that of the datalogger

(i.e. 6785). This must be the same as the PakBus port and the local
listing port configured in Section 6.3.6.

x Click the‘Add’ button, then click the‘Apply’ button.

5.3.8 Security

Note

If either password is lost the modem will need to be manually reset
to defaults and reconfigured in order to regain access.

In order to keep the system secure it is recommended to change the
administrator and upgrade passwords from the factory defaults. Changing the
administrator password will protect against modifications to the modem’s
configuration. Changing the upgrade password will protect against
unauthorized upgrades.

15

x Under Security navigate to the Password tab

x Change passwords as needed. Be sure to maintain a sercure record so

that a reference is available.

x Submit

5.3.9 Configuration Backup

It is possible to backup the configuration of a modem after completion.

x Under Tools navigate to the Maintenance tab.

x Select “Download” under System Settings. This will allow a text file

to be downloaded to a PC.

x Save the “system.config” file as required.

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5.3.10 Load Configuration

It is possible to upload a “system.config” file to a modem either to restore
settings or as a template to help configure multiple modems.

x Under Tools navigate to the Maintenance tab.

x Under HTTP Upgrade: ‘File:’ browse for the related file.

x Open the “system.config” and upload the file. It must be loaded as

“system config” regardless of the filename it was saved under.

Note

The modem will only accept the filename “system.config”
otherwise you will receive an error message.

5.4 LoggerNet Setup

The Loggernet “Device Map” is configured from the “Setup” button on the
LoggerNet Toolbar. From the Loggernet Toolbar, click Main | Setup, and
configure the Device Map as described below.

Note

The process is the same for Bell, Telus, or Rogers users

1. Select Add Root | IPPort

2. Add a datalogger to the IPPort (PakBus dataloggers;e.g., the CR1000,
requires a PakBusPort).

3. On the IP Port page:

a. Add the Domain Name (see Section 6.3.5) or IP address of the modem

to the Internet IP Address field, followed by the Port number. This
number (6785) is the datalogger’s default port number. It is also used
to configure t he “Com1” and “Firewall” se ttings of the IPn3Gb
Cellular Modem. Whenever possible it is recommended to change this
number to the last four digits of the related cellphone number.

17

b. Extra response time should be 10 - 12 seconds.

c. Click “Apply”.

4. For PakBus dataloggers, add 10 seconds of Extra Response Time.
“PakBus Port Always Open” should not be checked.

18

5. For PakBus dataloggers, set the P a kBus address to match that of the
datalogger (default address in the datalogger is 1). Click the “Apply” button
to save changes.

5.5 Wiring and Connections

Power for the modem can be sourced directly from the datalogger. Refer to
Table 5-1 for details. Connection to the switched 12V terminal allows the user
to control power to the modem through the datalogger program. In this way,
power can be conserved by limiting the time that the modem is on. For
example, the user could choose to power on the modem only for scheduled data
collections or only during certain hours of the day. When using the switched
12V terminal, be sure to allow time for the modem to warm up and provision to
the network. The required warm up time can vary, but the recommended
minimum is 2 min.

TABLE 5-1. Modem Connection to Datalogg er

Colour Function Datalogger Modem

Red Power source 12V (or SW12V) Vin+

Black Ground G GND

19

5.5.1 Modem Connection using the L18663 Null Modem Cable

In order to connect to a CR1000, CR3000, CR800, or CR200X series RS-232
port you will require a Null Modem Cable, Campbell Scientific part number
L18663. Connect one end of the Null Modem Cable to the IPn3Gb Cellular
Modem and the other to the datalogger’s RS-232 port.

5.5.2 Modem Connection using the SC932A

If connecting to any datalogger’s CS I/O port you will require an SC932A
interface from Campbell Scientific. Connect the supplied black SC12 cable to
the datalogger side of the SC932A interface, and then to the CS I/O port of the
datalogger. Connect the DCE Device side of the SC932A interface to the
IPn3Gb Cellular M odem’s RS-232 port using the supplied straight through
serial cable L10873.

Figure 5—1 SC932A interface

5.5.3 Modem Connection using Ethernet

In some cases it may be desirable to connect using the Ethernet interface
available on the IPn3Gb Cellular Modem. To do this, you will require a
CR1000 or CR3000 with either a NL120 Ethernet Interface, NL115
Ethernet/Compact Flash Module, or any datalogger using a NL2XX series
device. A crossover Ethernet cable is needed to connect the two devices.

Please review the literature for the specific interface for more details.

5.6 Test the Cellular Connection

After the Device Map has been configured, it is recommended to test the
cellular connection using the “Connect” screen, as shown below. Click on the
appropriate station, then click the “Connect” button to initiate a call to the
datalogger. Be sure all connections are complete and power is supplied to both
the modem and datalogger.

If the call is successful, the connectors at the bottom of the screen will come
together, and time information from the datalogger will be displayed the
“Station Date/Time” field. If the connection fails, a “Communications Failure”
message is displayed. Troubleshooting procedures can be found in Section 7

Troubleshooting.

20

21

6. Operation

6.1 Program the Modem

6.2 Connectors and Indicators

6.2.1 Modem Front

It is recommended that the modem be provisioned and tested in the office
(assuming cellular coverage) rather than in the field.

The front of the IPn3Gb Cellular Modem includes the USB port, Diagnostic
port, SIM card slot, Indicator LEDs, and Config button.

Figure 6—1 Front view of the IPn3Gb Cellular Modem

x The USB port can be used to configure the modem. See Section

6.3.3.1 for details.

x Currently, the Diagnostic port is not used

x The SIM Card Slot houses the SIM card required for proper operation.

The SIM card supplied by the Service Provider must be inserted into
the SIM card slot.

x RF LED (Red) - When connected to a 2G/EDGE or 3G-WCDMA

Network, the RF LED indicates a transmission burst. When connected
to a 3G/HSPA Netwo rk the LED has no function.

x SGNL LED (Green) - When il luminated, the SGNL LED indicates

that the modem is connected and synchronized with a wireless carrier.

x Receive Signal Strength Indicator (RSSI) (3x Green) - As the received

signal strength increases, starting with the furthest left, the number of
active RSSI LEDs increases. If the measured signal strength is less
than –110dBm no LED’s will be illuminated. If the signal is greater
than –105dBm, 1 LED will be on, - 100dBm equals 2 LED’s, and any
signal greater than –95dBm will show all 3 RSSI LED’s to be ON.

x STATUS LED (Red) - Upon initial application of power the STATUS

LED will be illuminated for approximately 20 seconds, after which, it
will being to blink slowly (loading) for an additional 25 seconds, then

22

6.2.2 Modem Back

stay ON solid (indicating it has achieved its specific operatio nal
status).

x CONFIG (Button) - Holding this button depressed while powering-up

the IPn3G will boot the unit into FLASH FILE SYSTEM
RECOVERY mode. The default IP address for system recovery (only

- not for normal access to the unit) is static: 192.168.1.39.

x If the unit has been powered-up for some time (>1 minute), depressing

the CFG Button for 8 seconds will result in FACTORY DEFAULTS
being restored, including a static IP address of 192.168.0.1. This IP
address is useable in a Web Browser for accessing the Web User
Interface.

The back of the modem includes the Antenna SMA(F) connector, power
connection, Data (RS-232) port, and Ethernet port

Figure 6—2 Rear view of the IPn3Gb Cellular Modem

x The Antenna required for the application is connected to the Antenna

connector. The GPS and RX DIV are not used.

x The Green connector plug included with the modem is used to make

the power connection. Connections and use of the RS485/422 are not
referenced in this manual.

x The DATA port is used to connect to a datalogger’s RS-232 or CS I/O

port.

x The Ethernet port can be used to configure the modem. See Section

6.3.3.2 for details. The Ethernet port can also be used to communicate

with a datalogger and compatible interface using a compatible
network link interface (see Section 5.5.3).

23

6.3 Hardware

x C2675 IPn3Gb Mounting Kit – includes mounting hardware for

securing the modem to below referenced environmental enclosure.
IPn3Gb should be mounted in a position that allows easy access for
the cables so they are not bent, or constricted.

x Antenna – the following antennas are available from Campbell

Scientific. The antenna must be connected to the “Antenna”
connector of the IPn3Gb Cellular Modem. Contact a Campbell
Scientific Applications Technician for help in determining the best
antenna for your application.

o The C2446 is a dual-band, 3dB omni-directional antenna for our

CDMA and GPRS digital-cellular modems. This antenna is
recommended for locations where cellular coverage is strong.
The C2446 includes a mount/u-bolt assembly that allows the
antenna to be mounted to a mast, crossarm, or user-supplied pole
(outer diameter of up to 1.5" (3.8 cm)).

o The C2445 9dBd Yagi Antenna is a higher gain antenna that

should be "aimed" at the service provider's antenna. The C2445
is a 800 MHz antenna and bracket/u-bolt assembly for attaching
the antenna to a mast or post. The antenna comes with 10’ of
cable. This antenna is recommended for fringe areas that require
a higher gai n antenna.

o The C2444 9dBd Yagi Antenna is a higher gain antenna that

should be "aimed" at the service provider's antenna. The C2444
is a 800 MHz antenna and bracket/u-bolt assembly for attaching
the antenna to a mast or post. The antenna comes with 30’ of
cable and surge protection. This antenna is recommended for
fringe areas that require a higher gain antenna.

o The L18285 is a dual-band 1 dBd omni-directional antenna. The

antenna covers both the 800 MHz and 1.9 GHz bands, and is
strongly recommended where cellular coverage is strong. The
L18285 includes a mount/u-bolt assembly for attaching the
antenna to a mast, post, or crossarm up to 1.5" (3.8 cm) in
diameter.

o The L21831 Half-Wave Dipole Whip Antenna is a lower gain

antenna used in transmitting short distances. It is an 800 MHz
cellular antenna that terminates in a SMA Male connector for
attachment to the modem. This antenna is intended for use inside
the enclosure. Please note that the backplate of the enclosure is a
grounded plane. If it is interposed between the antenna and the
cell tower, it may attenuate the strength of the transmission
signal. Simply turning the enclosure 90 to 180° on its mounting
mast may solve weak transmission issues.

24

L18285 1 dBd Omni Directional Antenna

C2444/C2445 9dBd Directional Yagi Antenna

L21831 Half-Wave Dipole Whip Antenna

Figure 6—3 Antennas for use with the IPn3Gb Cellular Modem

x Power Supply (See Section 6.5 Wiring and Connections).

x Environmental Enclosure— ENC 10/12, ENC 12/14, or ENC 16/18.

25

7. Troubleshooting

If LoggerNet/PC400W software is unable to establish a connection with the
modem:

1. Check your account information (you may have to call your provide r for
this or look at your agreement).

2. Verify there is coverage at your location.

3. Check the RF and SGNL Indicator LEDs on the front of the modem.
Ensure that the modem has successfully connected to the cellular network.

4. Make sure the modem and datalogger have sufficient power.

5. Check the RSSI LEDs on the front of the modem or in the Web Interface.
If the measured signal strength is less than –110dBm no LED’s will be
illuminated. If the signal is greater than –105dBm, 1 LED will be on, ­100dBm equals 2 LED’s, and any signal greater than –95dBm will show
all 3 RSSI LED’s to be ON.

6. If you have a Dynamic IP account, you will need to have a dynamic
domain name server (DDNS) name that LoggerNet can reference to make
the connection. Refer to Section 5.3.5 for details.

7. In the “Summary” tab in the “System” group, make sure Activity Status is
“Call in Progress”, and note the WAN IP Address. This is the current IP
address for the modem (a dynamic IP address will change each time the
modem is reset). Try connecting to this IP address using LoggerNet. If
LoggerNet connects with the IP address, but not with the modem
name.doma in name, then there may be a probl em with the Dynamic IP
setup in the modem.

26

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