ITS Telecom CGW-T4 Assembly instructions

CGW-T4
March 2009
Installation and
Operation Guide
Release 1.02

CGW-T4 Installation and Programming Manual
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CGW-T4
Installation and Programming Manual
Pre-Release 1, Revision 1, September 2008 (Preliminary version)

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NOTICE
This manual describes the CGW-T4 Analog GSM/CDMA Cellular Gateway.
Additional copies of this manual may be obtained from ITS. No part of this document may be reproduced or
transmitted in any form, by any means (electronic, photocopying, recording, or otherwise) without the prior
written permission of ITS.
ITS reserves the right to modify the hardware and software described in the manual without prior notice.
However, changes made to the hardware or software described does not necessarily render this publication
invalid.
WARRANTY
In the event that the product proves to be defective in workmanship or materials within a period of one year
from date of shipment, ITS shall repair or replace the product at its discretion. Transportation will be the
responsibility of the dealer/distributor.
Under no circumstances shall ITS be liable for consequential or special damages, loss of revenue or
user/dealer expenses arising out of or in connection with the use or performance of the product,
whether based on contract, tort, or any other legal agreement.
The following shall void the above warranty: malfunctions resulting from fire, accident, neglect, abuse, or acts of
God; use of improper electrical power; or repair of, tampering with or alteration of the product by anyone other
than ITS authorized personnel.

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Table of Contents
1Introduction ......................................................................................................................................................3
1.1 Main Features ..............................................................................................4
1.2 Contents ......................................................................................................4
2Physical Description ........................................................................................................................................5
3Pre-Installation .................................................................................................................................................6
3.1 GSM Cellular Channels..............................................................................6
3.2 CDMA Cellular Channels............................................................................6
4Installation ........................................................................................................................................................7
4.1 SIM Card Insertion into the Unit (GSM channels only) ............................7
4.2 CGW-T4 Installation....................................................................................8
5LCD Status Indicators and Diagnostics .......................................................................................................9
5.1 CGW-T4 LCD Status Indicators and Diagnostics ......................................9
6DTMF Programming ......................................................................................................................................11
6.1 DTMF Programming Commands .............................................................12
7Technical Data ................................................................................................................................................15
7.1 CGW-T4 Channels for GSM Network .....................................................15
7.2 CGW-T4 Channels for CDMA Network ..................................................16

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1Introduction
Your new CGW-T4 is an analog 4 ports GSM/CDMA Cellular Gateway, a cost reduction tool
for mobile-to-landline and landline-to-mobile calls. It connects from the trunk interface
(analog FXO) of your PBX to a GSM network (via the inserted SIM card) or to a CDMA
network (by the built-in CDMA engine), eliminating the excessive interconnection fees and
significantly cutting your telephone costs.
The Automatic Route Select table (ARS) in the PBX defines which calls will be automatically
routed via the CGW-T4 to the predefined GSM/CDMA network. In doing so, the CGW-T4
gateway reduces the company’s telephone costs.
Integrated with the PBX analog trunk interface CGW-T4 provides Reverse Polarity and Loop
disconnection signaling for to release disconnected call.
Installation of the CGW-T4 does not require special skills. Simply insert the SIM card (GSM
networks only), connect the unit to the PBX trunk interfaces, attach the antennas and power
supply, and your CGW-T4 can immediately start saving money for you. The unit has an LCD
display for each channel, which shows the GSM/CDMA operator’s name, the signal strength
and other useful call progress information.
A number of additional parameters for the CGW-T4, such as Output Audio Volume level
setting, Conversion time-out and Restricted Digits, can be programmed via DTMF separately
for each channel.
The CGW-T4 unit displayed in Figure 1.
Figure 1. CGW-T4 Devices

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1.1 Main Features
The following is a list of Main Features of the CGW-T4 GSM/CDMA gateway:
Integrated dual-band GSM module (900/1800, 850/1900 MHz) or Integrated dual-
band CDMA module (800/1900 MHz)
4 Built-in LCD’s for each cellular channel
•Signal strength indicator
•Cellular operator name indicator
•Operational status
DTMF programming
•Administrator password protection
•Call Barring (Toll Restriction)
•Maximum number of digits allowed to dial
•Conversation Time-Out
•Reverse polarity signaling support
•Audio Volume control
•Roaming Control (GSM only)
•CLIR/CLIP (GSM only)
Supports DTMF dialing
4 Line interfaces, 2-wire (RJ-11 connectors)
Plug & Play installation
High voice quality
Maintenance free
1.2 Contents
The contents of your CGW-T4 package are as follows:
No. Item Qty.
1. CGW-T4 device 1
2. CD with Installation and Operation Manual 1
3. Power Supply
(Input: 110VAC, 60Hz or 220VAC, 50Hz)
(Output: 9VDC, 5A)
1
4. SMA Cellular 2,5 dB Antenna (with cable) 4
5. RJ-11 telephone cable 4
6. Metal brackets for the 19-inch rack or wall mounting 2
7. Screws and plugs for mounting 4

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2Physical Description
The physical features of the CGW-T4 are detailed in Figure 2.
Figure 2. CGW-T4 Physical Description
CGW-T4 front panel includes :
FXS analog telephone interfaces RJ-11 sockets
LCD displays for each cellular channel
Cellular Channel’s SMA antennas
CGW-T4 rear panel includes:
The Power supply socket
CGW-T4 side panel’s includes 2 pairs SIM card holders.
Figure 3. SIM cards holders

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3Pre-Installation
3.1 GSM Cellular Channels
The CGW-T4 unit contains a GSM engines. It therefore needs a SIM cards from the local GSM
network providers. Its registration to the GSM operator is similar to the registration of a
mobile GSM phone.
3.2 CDMA Cellular Channels
The CGW-T4 (CDMA) contains a CDMA engine that needs to be activated via a local CDMA
network provider. You register the engine the way you would normally register a mobile
CDMA phone.

NOTE
It is recommended that you disable all call forwarding modes (in the events of
busy, absence, unavailability, etc.) and Call Waiting from the GSM/CDMA
operator, before installing the SIM card (GSM network), or activating the
CDMA unit.

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4Installation
4.1 SIM Card Insertion into the Unit (GSM channels only)
1
CAUTION
To avoid damage to the CGW-T4 unit, disconnect the 9V adapter from the
electric power outlet.
The physical description of the unit can be used as guideline for the following steps:
SIM card’s holders can be found on the right and left lateral surfaces (See Figure 3 ). Each SIM
card holder marked with the corresponded cellular channel’s number
Using a screwdriver, push the yellow SIM release lever, so that the SIM card tray moves
towards you.
Take out the tray. You will see that the SIM card fits in the tray in one way only.
Carefully place the tray with the SIM card in the slot and slide it in with the SIM card contacts
facing down.

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4.2 CGW-T4 Installation
To install the CGW-T4 unit, perform the steps as follows:
Mount the CGW-T4 unit in the 19-inch rack or on the wall by using installation brackets
or place the unit on the horizontal surface.
Connect the antennas into the ‘Ant.’ SMA connectors on the front panel of the CGW-4
unit.
Connect the analog trunk interface of the PBX to the port sockets on the front panel of
the CGW-T4 unit.
Connect the power supply to the CGW-T4 unit. The unit will start the initialization and
registration. At the end of the process, the LCD’s will display the signal status of each
cellular channel.

NOTE
Adjust the antenna location until an optimal signal level is received. The signal
level indicates on the LCD display.
Figure 4. CGW-T4 Schematic Setup displays the schematic setup of the CGW-T4 unit.
PBX
PBX
extensions
PBX analog
Trunk interfaces FXS Analog
Phone
Wall Power
Figure 4. CGW-T4 Schematic Setup

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5LCD Status Indicators and Diagnostics
5.1 CGW-T4 LCD Status Indicators and Diagnostics
The CGW-T4 Gateway can be connected to the analog trunks interface of the PBX or directly
to the analog home phone. At power-up of the CGW-T4 unit, the information on the LCD
will provide the first diagnostics. In many cases further diagnostics is not needed. By
connecting an analog telephone with the RJ-11 connector to the appropriate port’s socket in
the unit, you are able to perform further diagnostics.
5.1.1 LCD Status Indicators
The following table shows the messages appearing on the LCD, their description and the
action to be taken (if any).
LCD Message Description Action
Searching
Network… Searching for the mobile network. No action needed.
Ver:CGWT4_XX Displays the firmware number No action needed.
Enter PIN code
(GSM only)
CGW-T4 needs the PIN code to
activate the SIM card.
1. Connect an analog telephone to the unit and
enter the code. (4-8 digits. Add a # to the code
when using less than 8 digits)
2. Alternatively, insert the SIM into your mobile
phone and disable the security option.
Enter PUK code
(GSM only)
CGW-T4 received 3 times an
incorrect PIN code.
Request the PUK code from your local GSM
operator and enter it into the CGW-T4.
Registration… Registration process after the
mobile network has been found. Wait till registration phase is finished.
S=X %
LCD shows signal level in intervals
of 20% (20%, 40%, 60%, 80%,
100%).
If 20% or No signal, move the antenna to
another location with a better reception.
Name operator Name of Operator (read from
mobile network). No action is needed.
Calling… CGW-T4 dials to destination. Wait.
Connected When called party answers. No action needed.
Disconnected End of call. No action needed.
Incoming Call CGW-T4 gets a call from network. No action needed.

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LCD Message Description Action
Failed
CGW-T4 receives incorrect
operation information from the
mobile network.
Try again.
Engine Problem GSM/CDMA engine problem. Power off and on the unit. If error is repeated,
the unit is faulty.
No Signal No Signal or Signal low (less than
20%).
1. Check your antenna connection.
2. Move your antenna to a location with a better
reception.
3. Check with your GSM operator.
Reg. Denied Registration denied and/or SIM
card is not readable.
Replace the SIM card.
Contact your GSM operator.
Insert SIM Card
(GSM only) No SIM card inserted. Insert SIM card.
5.1.2 CGW-T4 Diagnostics
Perform the diagnostic procedure as follows:
Connect an analog telephone directly to the required port socket (RJ-11) on the unit front
panel.
Pick up the handset and listen to the dial tone:
A continuous dial tone indicates that the unit is working correctly and ready for
programming.
A busy dial tone indicates that there is a fault. Check the appropriate LCD display for a
message.

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6DTMF Programming
The CGW-T4 Gateway can be programmed via DTMF commands.

NOTE
Each Analog-Cellular channel required the separate programming procedure.
To program the cellular channel perform the steps as follows:
If the unit is connected to the PBX, remove the cable from the appropriate RJ-11 port
socket on the unit front panel.
Connect an analog telephone directly to the required RJ-11 port . (1,2,3 or 4)
Pick up the handset, hear the dialtone and Dial *900 then enter the password (1234
by default).
Use the commands in the following table for programming.

NOTE
The CGW-T4 cellular channel will not answer incoming calls when
programming mode is active.
Exit from the programming mode by *900 (Recommended) or hanging up the
telephone.
If you do not enter digits for 45 seconds, the channel will automatically exit
the programming mode.
When entering an incorrect command, you will hear a beep.
When entering a correct command, you will hear two beeps.

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6.1 DTMF Programming Commands
Operation Command Default
Enter the Programming mode *900 + XXXX
where:
XXXX = Password (1234
default)
1234
Exit the Programming mode *900
Maximum number of digits to be
dialed by the CGW-T4
Note:
Less than XX digits – there will be
a time-out of 3 seconds (default),
before the dialing starts.
Exactly XX digits – the number
will be dialed directly.
More than XX digits – the
number will be cut off after XX
has been reached.
*300 + XX
where:
XX = 05-20 (digits)
11 (Tip: set the
default to country’s
max. telephone
number length.)
Time-out value in seconds. This
defines how much time the unit
waits before dialing the number
shorter than the maximum
number of digits defined with
*300).
*310 + X
where:
X = 2 - 9
3 (sec.)
Reverse Polarity
The unit may be set up to send a
“reverse polarity” command to
the PBX, in case a “call answer”
is detected. This parameter is
useful if call accounting software
is active.
*320 + X
where:
X = 0 – 2
0 = No reverse polarity
1 = Reverse polarity only on
Outgoing calls
2 = Reverse polarity for
Incoming and Outgoing Calls
2
Output Volume Control *330 + X
where:
X = 0 – 7 (CDMA)
X = 0 – 9 (GSM)
5
CGW-T4 Telephone Number
Enter the SIM telephone number
to be displayed on the LCD
during power-up of the unit.
(GSM only)
*350 + Number + #
where:
Number = SIM Telephone
number (up to 15 digits)
None

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Operation Command Default
DTMF support option (CDMA
only)
*350 + X, where:
X = 1 enabled; X = 0 disabled
Verification of the Telephone
Number
Display the SIM telephone
number on the LCD for 5 seconds
when in programming mode.
(GSM only)
*360
Conversation Time-Out
The telephone conversation will
be automatically terminated after
this time-out.
*390 + XX
where:
XX = number of minutes
00 = unlimited
00 (unlimited)
End Dialing Digit
Define "#" as the digit that
indicates the end of a dialed
number, causing the unit to
immediately start dialing.
(GSM only)
*370 + X
where:
X = 0 End dialing digit disabled
X = 1 End dialing digit enabled
("#" indicates end of number)
1
Pulse drop (Loop Disconnect)
Activate the pulse drop feature
by defining time for loop
disconnect for conversation end
state signaling to PBX.
*380 + XX
where:
XX = time in tenth of seconds.
For example:
X = 10=1000 milliseconds = 1
second
X = 01 = 100 milliseconds
Legal values: 00-99
Note: If this feature is activated
together with reverse polarity (*320)
'Pulse drop' occurs after polarity is
reversed.
00
(Feature disabled)
Call barring (number of restricted
numbers reduced to 8).
*400 + XX + YYYY + #
where:
XX = 01 to 08 (list number of
restricted numbers)
YYYY – up to 4 digits (0-9)
restricted prefix
None

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Operation Command Default
Delete Call Barring (Toll
Restriction).
*400 + XX + # (delete a specific
list number) or
*400 + # (delete the whole
restricted number list)
None
Cellular Engine Reset Interval
Define the interval, in hours,
between cellular channel resets.
Reset is always performed when
the unit is in Idle mode. Reset
affects the GSM engine only, and
does not affect any of the
parameters.
*450 + XX
where:
XX = number of hours between
resets (01 to 99; 00 indicates no
reset at all)
00
(reset disabled)
Roaming
The unit will be able to register
with another GSM operator.
(GSM only)
*500 + X
where:
X = 0, off
X = 1, on
0
CLIR (Calling Line Interface
Restriction)
The CGW-T4 can be restricted to
show its SIM telephone number.
(GSM only)
*550 + X
where:
X = 0, off
X = 1, on
1 – Basic version.
In some types the
default is 0 –
contact your local
distributor.
Change programming password *600 + new password
where: password must be 4
digits (only digits 0-9)
1234
Reset the unit and set to default
values
*151

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7Technical Data
7.1 CGW-T4 Channels for GSM Network
Model CGW-T4 GSM Gateway
GSM Network Type GSM Phase II
GSM Module Integrated dual-band (900/1800, 850/1900 MHz)
SIM card Plug-in, 3V, small
Transmission Power Max. 2W / 900MHz Max. 2W / 850MHz
Max. 1W / 1800MHz Max. 1W / 1900MHz
Receiver sensitivity -104 dBm
Connectors RJ-11 (Trunk) – to analog trunk interface of PBX
Power Supply
SMA female - Antenna
Off-hook AC
impedance
600 Ώ
On-hook line
voltage
48 VDC
Off-hook line
current
Maximum 25 mA
Off-hook loop
resistance threshold
800 •
Dial tone frequency 400Hz
Ringing voltage 48Vrms, 25Hz
Supported dialing
type
DTMF
Antenna 50 ΏImpedance, connected via SMA connector
frequency 800 - 2000MHz
Antenna cable
length
3m
9.8ft
Power supply Input: 110VAC, 60Hz
220VAC, 50Hz
Output: 9VDC, 5A
Temperature range 0˚C-45˚C
32˚F-113˚F
Maximum relative
humidity
95%

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Dimensions L x W x H 433 x 174 x 64 mm / 17,0 x 6,85 x 2,51 inch
Weight 2,8 kg
7.2 CGW-T4 Channels for CDMA Network
Model CGW-T4 CDMA Channel
CDMA Network
Type
CDMA, CDMA 1X
CDMA Module Integrated dual-band Tri-Mode (CDMA 1X 800/1900MHz, AMPS
800MHz)
Transmission Power Max 800MHz = 1/4W
Receiver sensitivity Digital <-104 dBm
Analog <-116 dBm
Connections To analog trunk interface of PBX – RJ-11 (Trunk) (operational
mode)
To analog telephone – RJ-11 (Trunk)
(programming mode)
Power Supply
Antenna
Off-hook AC
impedance
600 Ώ
On-hook line
voltage
48VDC
Off-hook line
current
Maximum 25mA
Off-hook loop
resistance threshold
800 Ώ
Dial tone frequency 400Hz
Ringing voltage 48Vrms, 25Hz
Supported dialing
type
DTMF
Antenna 50 ΏImpedance, connected via SMA connector
frequency 800/1800/1900MHz
Antenna cable
length
2m
Temperature range 0˚C-45˚C
32˚F-113˚F
Maximum relative
humidity
95%

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