Bosch ITS-DX4020-G Operating instructions

GPRS/GSM IP Communicator
Conettix ITS-DX4020-G
en Installation and Operation Guide

GPRS/GSM IP Communicator Table of Contents | en 3
Bosch Security Systems, Inc. Installation and Operation Guide F01U163066 | 01 | 2010.05
Table of Contents
1 Introduction 5
1.1 Trademarks 5
1.2 Technical Specifications 5
1.3 Certifications and Approvals 6
1.4 Control Panel Compatibility 6
2Overview 7
2.1 System Overview 7
2.2 Device Overview 8
2.3 Modes of Operation 9
2.4 Configuration Options 10
3 Installation 11
3.1 Installation Prerequisites 11
3.2 Insert the SIM Card 12
3.3 Mount the ITS-DX4020-G in the Control Panel Enclosure 13
3.4 Connect the ITS-DX4020-G to the Control Panel 14
3.5 Check Signal Strength 16
4 Configuration 17
4.1 Use Short Message Service (SMS) to Configure the ITS-DX4020-G 17
4.1.1 Enter CONFIG MODE 17
4.1.2 Compose the Configuration SMS 17
4.1.3 Send the Configuration SMS 19
4.1.4 Exit from CONFIG MODE 20
4.2 Use USB to Configure the ITS-DX4020-G 20
4.2.1 Install the USB Driver 21
4.2.2 Install a Communication Program 23
4.2.3 Log Into the USB Interface 24
4.2.4 USB Main Menu 26
4.2.5 USB Option Menu 26
4.3 Polling Configurations 30
4.3.1 High Security Application (bank, jewelry store, UL fire, and so on) 30
4.3.2 Medium Security Application 31
4.3.3 Backup or Low Security Application (residential or other once-a-day reporting location) 32
4.4 SIM Card Data Usage 33
5Testing 34
5.1 GSM Trouble Indication 34
5.2 Firmware Version 34
6 Firmware Upgrade 35
6.1 Download the Latest Firmware 35
6.2 Install the Firmware 35
6.2.1 Install the Firmware using Hyper Terminal 35

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6.2.2 Install the Firmware using Tera Term 37
7Troubleshooting 40
7.1 Diagnostic LED Descriptions 40
7.2 Troubleshooting Procedures 44
7.2.1 The ITS-DX4020-G does not power on (no LEDs are lit) 44
7.2.2 Initialization 44
7.2.3 Hardware 44
7.2.4 Firmware 44
7.2.5 Radio Registration 45
7.2.6 SIM Card 45
7.2.7 PIN Code 45
7.2.8 Control Panel Bus 46
7.2.9 No Authorization 46
7.2.10 Invalid Configuration SMS 46
7.2.11 Firmware Upgrade In Process 47
7.2.12 No Incoming IP Packets 47
7.2.13 Control Panel Bus Problem 47
7.2.14 Radio Initializing or No Signal Strength 48
7.2.15 GSM Network Registration 48
7.2.16 Unacceptable Signal Strength 48
7.2.17 Marginal RF Signal 49
7.2.18 Wireless Reception Issues 49

GPRS/GSM IP Communicator Introduction | en 5
Bosch Security Systems, Inc. Installation and Operation Guide F01U163066 | 01 | 2010.05
1 Introduction
1.1 Trademarks
– Microsoft, Windows 2000, XP, Vista, and Windows 7 are either registered trademarks or
trademarks of Microsoft Corporation in the United States and/or other countries.
– Molex is a registered trademark of Molex Incorporated.
1.2 Technical Specifications
Electrical
Current (operating) – Standby: 65 mA
–Alarm: 200 mA
Operating Voltage 12 VDC nominal
Maximum Wire Resistance for
Control Panel Connections
1.6 ohms
Maximum Wire Distance GPRS (IP) Mode:
–22 AWG: 30.5 m (100 ft)
–18 AWG: 61 m (200 ft)
GSM (PSTN) Mode:
– Restricted to 6 m (20 ft) in conduit, and within the same room
Ripple/Noise 200 mVpp maximum
PSTN FSX Port 17 V minimum supplied
Radio GSM Quad band radio; 850 MHz and 1900 MHz
Terminals All terminals are power-limited. Separate power-limited wiring from non-power-
limited wiring by 6.4 mm (0.25 in).
Environmental
Environment Indoors
Relative Humidity 5% to 93% non-condensing
Temperature (operating) 0°C to +49°C (+32°F to +120°F)
Mechanical
Dimensions (H x W x D) 133 mm x 80 mm x 23 mm (5.2 in. x3.1 in. x 1 in.)
Antenna – Magnetic base omni-directional antenna
– 2.5 m (8.2 ft) cable with SMA connector
SIM Card 3V/1.8V SIM (compliant with GSM 11.12 recommendation)
USB Mini-B connector (cable not included)
Accessories
AE1 Standard Enclosure Standard gray enclosure made of 1.0 mm cold-rolled steel. Includes a keyed lock.
The dimensions are 35.6 cm x 31.8 cm x 7.6 cm (14 in. x 12.5 in. x 3 in.).
AE2 Standard Enclosure Standard red enclosure made of 1.0 mm cold-rolled steel. Includes a keyed lock.
Measures 35.6 cm x 31.8 cm x 7.6 cm (14 in. x 12.5 in. x 3 in.).
AE4 Large Enclosure Large red enclosure made of 1.2 mm coldrolled steel. Includes a keyed lock.
Measures 52.7 cm x 38.1 cm x 10.8 cm (20.7 in. x 15 in. x 4.25 in.).
D2203 Enclosure Grey steel enclosure measuring 37 cm x 34 cm x 8.9 cm
(14.6 in. x 13.4 in. x 3.5 in.). Includes a lock and accepts an optional tamper
switch.

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1.3 Certifications and Approvals
The ITS-DX4020-G is designed to comply with the following certifications and approvals:
1.4 Control Panel Compatibility
– FPD-7024 Fire Alarm Control Panel
– GV2 Series (firmware version 7.07 or 7.08)1
–GV3Series
2
1GV2 Series consists of the D9412GV2, D7412GV2, and D7212GV2 control panels. Refer to
your control panel's documentation for programming instructions. When programming the
ITS-DX4020-G, follow your control panel’s DX4020 network programming instructions.
2GV3 Series consists of the D9412GV3, D7412GV3, and D7212GV3 control panels. Refer to
your control panel's documentation for programming instructions. When programming the
ITS-DX4020-G, follow your control panel’s DX4020 network programming instructions.
D8103 Enclosure Grey steel enclosure measuring 41 cm x 41 cm x 9 cm (16 in. x 16 in. x 3.5 in.).
D8109 Fire Enclosure Red steel enclosure measuring 40.6 cm x 40.6 cm x 8.9 cm
(16 in. x 16 in. x 3.5 in). UL Listed. Includes a lock and key set.
Agency Certification
FCC FCC, Part 15 Radiated/Conducted Emissions
NIST FIPS 197 Certificate No. 1247
PTCRB Approved
CSFM Approved
UL – UL 365, Police Station Burglar Alarm Units and Systems
– UL 864, Commercial Fire Alarm Signaling
– UL 985, Household Fire Warning System Units
– UL 1023 Household Burglar-alarm System Units
– UL 1610, Central Station Burglary
NOTICE!
When using a GV2 or GV3 Series control panel in GPRS mode, the ICP-SDI-9114 SDI Splitter is
required. Refer to the ICP-SDI-9114 Installation Instructions (P/N: F01U030068).

GPRS/GSM IP Communicator Overview | en 7
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2Overview
The ITS-DX4020-G enables two-way IP or dialed communication over a commercial GPRS /
GSM network. Typical applications are event reporting to a central monitoring station and
remote access to Bosch intrusion control panels. For a list of compatible control panels, refer
to Section 1.4 Control Panel Compatibility, page 6.
For installations using a PSTN receiver, the ITS-DX4020-G uses GSM to dial the receiver and
communicate using Contact ID.
2.1 System Overview
Figure 2.1 System Overview
Callout Description
1 ITS-DX4020-G GPRS/GSM Communicator
2 Compatible Control Panel
(refer to Section 1.4 Control Panel Compatibility, page 6)
3 Control Panel Dialer Connection (optional)
4 Control Panel Bus and Power Connection
5 USB Type A (host)-to-USB Mini B (device) Cable (not included)
6 Local PC or SMS-capable Cell Phone for Configuration
7AntennaCable
8 Magnetic Base Antenna
9 Base Station on Wireless Carrier’s Network
10 Internet, WAN, Ethernet, or PSTN network
11 Remote PC’s Network Connection
12 Remote PC Running Remote Programming Software (RPS)
13 Ethernet Connection
14 PSTN Connection
15 Conettix D6600 with Serial Network Adapter or Conettix D6100i Receiver
7
8
12
15
5
1
32
6
13
11
10
14
9
4
1
2
3
4
5
6
15
14
7
8
9
10
12
13
11

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2.2 Device Overview
Figure 2.2 shows an overview of the ITS-DX4020-G printed circuit board (PCB).
Figure 2.2 ITS-DX4020-G PCB Overview
Callout Description
1 PNL/PSTN terminals (for GSM/PSTN Mode)
Refer to Section 2.3 Modes of Operation, page 9.
PNL = Panel
PSTN = Public Switched Telephone Network
2 Molex connector and bus terminals (for IP over GPRS Mode)
Refer to Section 2.3 Modes of Operation, page 9.
3 Mini-B USB Port
4 ANTENNA Connector
5 CONFIG MODE (J200) Jumper Pins
6 LED DIS (J201) Jumper Pins (LED Disable Jumper Pins)
7 Diagnostic LEDs. Refer to Table 7.2, Page 43, for more information.
8 SIM card in card holder
NOTICE!
To conserve power, disable the diagnostic LEDs by placing a jumper plug across the
LED DIS jumper pins. Refer to Figure 2.2 for more information.

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2.3 Modes of Operation
The ITS-DX4020-G supports two modes of operation. Refer to Table 2.1 and Table 2.2 for
descriptions of each mode.
Table 2.1 IP over GPRS Mode of Operation
Table 2.2 PSTN over GSM Mode of Operation
NOTICE!
The IP over GPRS Mode requires a data plan enabled SIM from a cellular provider.
NOTICE!
Depending on system configuration, the local Authority Having Jurisdiction (AHJ) might
require you to connect the control panel’s phone line for communication with the central
station receiver.
IP over GPRS (General Packet Radio Services) Mode
Overview:
This mode provides a wireless IP connection over the GPRS network.
The control panel supervises the communication path through the ITS-DX4020-G either by
control panel heartbeats, or by periodic test reports.
Wiring connections:
Connect the bus terminals on the control panel and the ITS-DX4020-G.
Refer to Figure 3.3, Page 14.
Supported control panels:
Refer to Section 1.4 Control Panel Compatibility, page 6.
PSTN (Contact ID) over GSM
Overview:
This mode:
– Provides a GSM dial-out option for installation sites where GPRS service is not
available or a Conettix receiver is not available
– Supports only the Contact ID reporting format
NOTICE: For control panels that detect a dial tone before dialing, disable dial tone
detection. The ITS-DX4020-G supplies phone voltage of 22 - 25 VDC and US dial tone
frequencies (350 Hz+ 440 Hz).
Wiring connections:
Connect the R (Ring) and T (Tip) phone terminals from the control panel to the PNL/PSTN
terminals on the ITS-DX4020-G.
Refer to Figure 3.4, Page 15
Supported control panels:
All. Refer to Section 1.4 Control Panel Compatibility, page 6.

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2.4 Configuration Options
You can configure the ITS-DX4020-G using one of two methods:
– Short Message Service (SMS). Refer to Section 4.1 Use Short Message Service (SMS) to
Configure the ITS-DX4020-G, page 17.
– USB user interface. Refer to Section 4.2 Use USB to Configure the ITS-DX4020-G, page 20.
You can configure in one of three different modes, depending on the control panel. For a list
of modes allowed by the different control panels, refer to Section Table 4.1 Modes Allowed
by Control Panel, page 17.
NOTICE!
The configuration options provide temporary connections to the ITS-DX4020-G for
configuration purposes only. They are not intended for long-term, or permanent, connection.

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3 Installation
3.1 Installation Prerequisites
Before you install the ITS-DX4020-G, ensure that the following prerequisites are met:
– Before installing the ITS-DX4020-G in an existing system, inform the operator and local
authority.
– Before installing the ITS-DX4020-G, disconnect all system power (AC and standby
battery).
– If you are mounting the ITS-DX4020-G in a separate enclosure in a burglary application, a
tamper switch is required in the enclosure. For fire applications, the tamper switch is not
required. Refer to Section 1.2 Technical Specifications, page 5, for enclosure options.
– If you are mounting the ITS-DX4020-G in a separate enclosure and using GSM (PSTN)
mode, ensure that all external wiring between and originating from the enclosures is in a
metal conduit no longer than 6 m (20 ft), and is within the same room. Refer to
Section 1.2 Technical Specifications, page 5 for enclosure options.
– Separate power-limited wiring from non-power-limited wiring by 6.4 mm (0.25 in).
– For specific control panel installation instructions, refer to the control panel’s
documentation.
– Contact the central monitoring station for destination IP address and port number
settings. Provide the central monitoring station with the poll rate setting.
NOTICE!
Depending on the SIM card used, first-time registration of the SIM card might take up to 3
minutes to complete. During this time, the signal levels displayed by the signal strength LEDS
might fluctuate.

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3.2 Insert the SIM Card
Figure 3.1 SIM Card and Card holder Overview
1. Hold the ITS-DX4020-G communicator as shown in Figure 3.1.
2. Slide the SIM card holder door upward to unlock it.
3. Lift the SIM card holder door.
4. Insert the SIM card into the guides on the card holder door.
The notched edge is away from the hinge, and the contacts are positioned as shown in
Figure 3.1.
5. Close the card holder door, and then slide the door away from the hinge to lock it.
Callout Description
1 SIM card orientation
2 SIM card holder door unlock instruction
3 SIM card holder door open instruction
4 SIM card insert instruction
5 SIM card holder door close and lock instruction
NOTICE!
The SIM card holder door does not open very far. Do not force the door open beyond its
normal range of motion.

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3.3 Mount the ITS-DX4020-G in the Control Panel Enclosure
Refer to Figure 3.2, Page 13.
1. Mount the ITS-DX4020-G into the control panel's enclosure using the supplied mounting
screws.
Use any of the standard three-hole mounting patterns on the control panel’s enclosure. If
necessary, remove the three knockouts.If necessary, use the D137 Mounting Bracket (not
supplied) to mount the ITS-DX4020-G on the control panel enclosure.
2. Place the magnetic antenna in the vertical position on the top of the control panel
enclosure or other metal surface.
3. Connect the antenna cable to the ITS-DX4020-G.
Figure 3.2 Sample Mounting Location in Control Panel Enclosure
NOTICE!
The antenna must be placed on a magnetic metal surface for proper operation.
For best performance, ensure that the surface area extends 10 cm (4 in.) or more in all
directions around the antenna.
Callout Description
1 Sample mounting location and ITS-DX4020-G mounted at that location with
supplied mounting screws
2 Magnetic antenna (mount on top of the enclosure or other metallic surface);
route the antenna cable through the enclosure knockout
3 ANTENNA connector on ITS-DX4020-G

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3.4 Connect the ITS-DX4020-G to the Control Panel
Depending on the selected mode of operation, refer to Figure 3.3 below, or Figure 3.4,
Page 15 for wiring connections.
For more information on the modes of operation, refer to Section 2.3 Modes of Operation,
page 9.
Figure 3.3 Connections for IP over GPRS Mode
NOTICE!
The bus terminals are shown in only one order. Terminal order is specific to control panel
type. Refer to the control panel documentation for more information.
Callout Description
1a Bus connection from ITS-DX4020-G to the control panel using the supplied
Molex cable
1b Bus connection from the ITS-DX4020-G to the control panel using the bus
power terminals
2 Bus power terminals on the control panel
B
G
R
Y
1a
1b
2
2
B
G
R
Y

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Figure 3.4 Connections for PSTN (Contact ID) over GSM Mode
Callout Description
1a Power connection from ITS-DX4020-G to the control panel (12 VDC only) using
the supplied Molex cable
1b Power connection from ITS-DX4020-G to the control panel (12 VDC only) using
the bus terminals
2 Bus terminals on the control panel
3 PNL/PSTN connection from ITS-DX4020-G to the control panel
4 Phone terminals on the control panel (connect to the Ring [R] and Tip [T]
terminals)
1b
R
RH
T
TH
3
B
G
R
Y
4
1a
2
R
RH
T
TH
B
G
R
Y
342

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3.5 Check Signal Strength
Apply power to the ITS-DX4020-G and wait 30 sec. Depending on the SIM card used, first-time
registration might take up to 3 minutes to complete. If any LEDs have a double flash, refer to
Table 7.2, Page 43 and proceed when the double-flash problem is resolved.
Check the signal strength LEDs (SS1, SS2, and SS3):
– If the signal strength is good or higher (refer to Table 3.1, Page 16), proceed to
Section 4 Configuration, page 17.
– If the signal strength is unacceptable or lower (refer to Table 3.1, Page 16), check the
installation site for possible causes of signal interference.
Refer to Table 3.1 for signal strength levels.
Table 3.1 Signal Strength Levels
LED
Signal Strength SS1 SS2 SS3
Unacceptable: no reading available
(modem is resetting or registering)
Off Off Off
Attempting to register on the GSM
network.
Flash Off Off
Unacceptable: < -89 dBm On Off Off
Marginal: -89 dBm to -83 dBm On Flash Off
Good: -83 dBm to -77 dBm On On Off
Very good: -77 dBm to -69 dBm On On Flash
Excellent: > -69 dBm On On On

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4 Configuration
The ITS-DX4020-G supports configuration by either SMS or USB connection. You can
configure up to two different modes, depending on the control panel. For a list of modes
allowed by the different control panels, refer to Table 4.1, Page 17.
Table 4.1 Modes Allowed by Control Panel
4.1 Use Short Message Service (SMS) to Configure the
ITS-DX4020-G
The ITS-DX4020-G supports configuration by SMS. You can send the SMS via mobile phone to
the ITS-DX4020-G. The SMS string follows a specific format. If the configuration message
exceeds 160 characters, you must send multiple messages. Refer to Section 4.1.2 Compose
the Configuration SMS, page 17 for details.
When the ITS-DX4020-G receives the final valid part of an SMS message, it accepts the
configuration. The ITS-DX4020-G waits as long as the CONFIG MODE jumpers are shorted
together with the supplied jumper plug.
4.1.1 Enter CONFIG MODE
Ensure that the CONFIG MODE jumper pins are shorted together with the supplied jumper
plug. The STATUS, CELL IP, and AUDIO ACT LEDs start a scrolling pattern.
4.1.2 Compose the Configuration SMS
Use the appropriate SMS template for the selected mode of operation, and compose the
configuration SMS message on your mobile phone. SMS can contain only 160 characters.
Control Panel GPRS (IP) PSTN (Contact ID) over GSM
FPD-7024
GV2 Series
GV3 Series
NOTICE!
When using the PSTN (Contact ID) over GSM mode on a GV3 Series control panel, ensure that
the “C” character is dialed before the central station’s phone number. The "C" character
disables dial tone detection after the first DTMF digit is dialed.
NOTICE!
Bosch recommends that when using GSM mode, always enter a 10-digit phone number in the
control panel. This is because the SIM card might have originated in a different area code from
the installation location.
NOTICE!
When using the PSTN (Contact ID) over GSM mode, the control panel must be set up for
DTMF (tone) dialing only.
NOTICE!
To allow the receipt of SMS data, the CONFIG MODE jumper pins must be shorted together
with the supplied jumper plug. Refer to Table 4.6, Page 20, for LED activity.
If the CONFIG MODE jumper pins are not shorted together, incoming SMS data is discarded.

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Refer to Section Multiple SMS Messages (for Messages Longer than 160 Characters), page 19 for
instructions for sending a multiple SMS configuration.
The templates below contain only the essential configuration IDs. For additional configuration
IDs, refer to Table 4.10, Page 30.
Refer to Table 4.1 for information about the modes allowed for your control panel.
IP over GPRS Mode
Table 4.2 IP over GPRS Mode and Dual Wireless Mode SMS Configuration
NOTICE!
Separate each ID or value pair with a line feed (<LF>), a carriage return (<CR> or
< ENTER>), or a semi-colon <;>. Due to phone and carrier differences, Bosch recommends
using semi-colons to create and send SMS messages. For example,
%1;1=4020G;10=Airnet1;14=88;17=2;!. To allow spanning of configuration across multiple
messages, each SMS starts with the sequence number followed by the command line
separator.
Any of these characters is acceptable to separate command lines. Refer to your cellular
phone’s documentation for available characters.
ID Description Sample SMS
%1 SMS sequence number 11
1= Current password (4 to 15 characters); default = 4020G
10= GPRS access point name (APN); 1 to 63 characters
14= – 88 (GV2 Series or GV3 Series)
– 92 (GV3 Series)
–134 (default)
– 250 (FPD-7024)
17= Communication path:
– 1 = Both (default)
– 2 = IP over GPRS
– 3 = PSTN (Contact ID) over GSM
! End of configuration
1 The % symbol starts the SMS configuration message content. Any data before the % symbol is discarded.
The % symbol is followed directly by the sequence number of the message (1 to 3).
%1
1=4020G
10=basic.m2m
14=88
17=2
!

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PSTN (Contact ID) over GSM Mode
Table 4.3 PSTN (Contact ID) over GSM Mode SMS Configuration
Multiple SMS Messages (for Messages Longer than 160 Characters)
Table 4.4 Double SMS Example, Part 1
Table 4.5 Double SMS Example, Part 2
4.1.3 Send the Configuration SMS
1. Send the configuration SMS to the SIM card phone number. The transmission might take
several minutes. Because the CONFIG jumper is on, the ITS-DX4020-G waits for an SMS
until a message is received.
2. Observe the LEDs on the ITS-DX4020-G.
When all of the LEDs start a scrolling pattern, the ITS-DX4020-G is successfully
configured. Refer to Table 4.6 for more information.
ID Description Sample SMS
%1 SMS sequence number 1
1= Current password (4 to 15 characters); default = 4020G
14= Control panel bus address 0 to set it to PTSN (Contact ID)
over GSM mode
17= Communication path:
– 1 = Both (default)
–2=IPoverGPRS
– 3 = PSTN (Contact ID) over GSM1
! End of configuration
1Select 3 (PSTN (Contact ID) over GSM) for PSTN over GSM Mode
ID Description Sample SMS
%1<LF> SMS sequence number 1
1=4020G<LF> Current password
2=secret123<LF> New password (case sensitive)
3=123456,4343<LF> PUK and new PIN to set in SIM
10=basic.m2m<LF> (Access Point Name) APN
[email protected]<LF> GPRS username
12=password<LF> GPRS password
15=1<LF> Enable AES encryption
16=01020304050607080910
111213141516<LF>
Sample AES key
ID Description Sample SMS
%2<LF> SMS sequence number
14=134<LF> Option bus address
! End of configuration
%1
1=4020G
14=0
17=3
!
%1
1=4020G
2=secret123
3=123456,4343
10=basic.m2m
1[email protected]
12=password
15=1
16=01020304050607080910111213141516
%2
14=134
!

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Table 4.6 Configuration Mode (J200 Jumper Installed) LED States
4.1.4 Exit from CONFIG MODE
1. Remove the jumper plug from the CONFIG MODE jumper pins.
The ITS-DX4020-G restarts.
2. Check the status of the CELL IP LED to see if the ITS-DX4020-G can communicate with
the central station receiver.
Refer to Table 4.7 for more information.
Table 4.7 CELL IP LED Status
4.2 Use USB to Configure the ITS-DX4020-G
You can use a USB connection from a laptop or desktop PC to the ITS-DX4020-G to configure
the ITS-DX4020-G on-site.
Before you can access the USB user interface, you must install the ITS-DX4020-G.inf file on
the target PC or laptop. The ITS-DX4020-G.inf file is available on the supplied CD-ROM. You
need to install this file only once on the target PC or laptop.
If the ITS-DX4040-G CD-ROM is not available:
1. From your Internet browser, go to http://www.boschsecurity.com to open the Bosch
Web site.
2. Select the web site for your region and country.
3. In the Online Catalogs section on the left, click the Intrusion Alarm Systems link.
LED State
Condition STATUS CELL
IP
AUDIO SS1 SS2 SS3 BUS
1 No control panel authorization received. GSM Signal Strength Off
2 Installer is authorized for Configuration mode,
or authorization is not required.
GSM Signal Strength On
3 Received invalid SMS. Flash Flash Flash Flash
4 Received valid SMS authorizing configuration.
Key: = Scrolling LEDs, from left to right.
→ → →
→ → →
→ → →
→ → → → → → →
→
NOTICE!
If the LEDs indicate an invalid SMS, remove the configuration jumper and then repeat the
steps in Section 4.1.1 Enter CONFIG MODE, page 17.
If the LEDs continue to indicate an invalid SMS, the configuration SMS might be incorrect.
Ensure that your configuration SMS contains the correct information, or use the USB
connection to configure the ITS-DX4020-G.
CELL IP LED State Status
Off The ITS-DX4020-G is not connected to the GPRS network.
Flash The ITS-DX4020-G is connected to the GPRS network, but it is not
connected to the central station receiver.
On The ITS-DX4020-G is connected to the central station receiver
through the GPRS network.