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IT-2000

IT-2000

TELEPHONE GSM INTERFACE 

TECHNICAL MANUAL 

(ENGLISH)

 

DESCRIPTION

The IT-2000 GSM interface simulates a traditional telephone line (PSTN) using a GSM system module.

It  can be used as telephone backup system when a PSTN line is out of order or is not available: in these 

conditions, or if the interface is properly configured, a call from an external unit is forwarded  through the 

GSM network. Besides, in the previous conditions, an incoming call from GSM network, generates a ring for 

the external unit. 

The system is completely transparent to SIA FSK and CONTACT ID protocols signals; it also provides sy-

stem status and lifetest O.C. outputs .

Using SMS commands IT-2000 can be remotely configured and can generate system informations.

AUTOMATIC SMS MESSAGES

IT-2000 handles incoming and outgoing SMS messages.

Incoming messages are used to configure the system.

Outgoing messages can be answers to commands or the following event-generated (if enabled) messa-

ges:

ID

Default Text

1

Description

1

 LIFE TEST

Programmable life test: 

sent periodically according to the configu-

ration

2

LOW BATTERY

Battery fail 

(the battery status is tested every 15 minutes)

3

GSM NO LINE

GSM fail: 

this message is sent as soon as the GSM network becomes 

available after a programmable out of service time

4

PSTN FAILURE

PSTN line FAIL: i

f the PSTN line is not available this message must 

be disabled 

“Sender 

ID”:received 

text

2

SMS echo function: 

this function forwards each incoming not reco-

gnized SMS (e.g.: SIM card expiry, credit exhaustion, etc.)

6

GSM:OK LEV :3

PSTN:FAIL

BATT:OK

After detecting a ring from the GSM network, the system checks if the 

calling telephone number belongs to the adrress book and, if yes, it 

answers with a message containing the system status.

This message doesn’t need  to be associated to a specific telephone 

number of the address book.

1) The text of the first 4 messages can be changed

2) The echo function returns the message received by the system preceeded by the sender id.

    This function also allows to monitor improper access attempts

A SMS message is sent if the relevant event occurs and if it has been previously associated at least to a 

telephone number (8 telephone numbers may be stored in the system): by default, all messages are asso-

ciated to the first telephone number of the address book.

COMPLIANT

 EN 50136-1-1 EN 50136-2-1+A1

ATS 2

Содержание IT-2000

Страница 1: ...configu ration 2 LOW BATTERY Battery fail the battery status is tested every 15 minutes 3 GSM NO LINE GSM fail this message is sent as soon as the GSM network becomes available after a programmable o...

Страница 2: ...AND CONNECTIONS LAYOUT ATTENTION introduce a SIM card with no data stored in its memory no tele phone numbers in address book and no text messages The SIM card insertion and extraction operations must...

Страница 3: ...rk not available SIM card locked low battery level If the problem is related to GSM network the RED and the YELLOW LEDs will blink simultaneously NOTE the battery status can be tested only when the vo...

Страница 4: ...knowledged SIM CARD AND PIN CODE The system normally works with SIM cards without the PIN code If the SIM card cannot work without the PIN code it must programmed to the 1234 value the board will use...

Страница 5: ...even if the PSTN line is available lftime 10 Sets the lifetest time to 10 minutes LFDELAY Command to set the lifetest interval in hour units lfdelay 24 Lifetest signal activation and SMS dispatch wil...

Страница 6: ...y life test PWD OK SMSTEXT 1 OK life test Because of the presence spaces in the text only the my text will be accepted life and test words will be intepreted as commands and will be not recognized PWD...

Страница 7: ...rrent 110mA Maximum current 600 mA peak 1A Battery 12V 2Ah Tamper Protection IP30 Fuse Type F 5x20 mm 1A Emulated line tone 440 Hz Emulated line voltage 33Vdc Housing Plate RAL 9002 Size 200 x 260 x 4...

Страница 8: ...onth Despite frequent testing and due to but not limited to any or all of the following tampering electrical or com munication disruption or improper use it is possible for the product system to fail...

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