Insys GPRS 4.2 11-02-01-03-10.008 Manuale Utente

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11-02-01-03-10.008
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Manual Supplement Insys GSM/GPRS 4.0 
1  
Version 1.0 / 07.03 
 
 
1 General 
1.1 Differences To INSYS GSM 4.0 
This manual describes the use of the special GPRS functionality of the INSYS 
GSM/GPRS 4.0. 
Fundamental differences to the usual INSYS GSM 4.0 exist only in the use of the 
GPRS Engine MC35 and the use of the extended AT commands resulting from 
this.  
All functions of the INSYS GSM 4.0 can also be used with the INSYS GSM/GPRS 
4.0; please refer to the user manual and the AT command set of the INSYS GSM 
4.0 for this. 
 
Power consumption: 
The power consumption increases in connection mode (GPRS connect) by 
approx. 400  mW. 
1.2 Technical Features GPRS 
Additionally to the connection types of the INSYS GSM 4.0, the INSYS GSM/GPRS 
4.0 offers the following GPRS features: 
 
GPRS multi-slot class 8 (max. 4 RX timeslots and 1 Tx timeslot) 
GPRS terminal device class B (no simultaneous GPRS/ CSD connect 
possible) 
Coding scheme CS 1 to CS 4 (has to be supported by the provider). 
 
Attention: GPRS offers no guaranteed data rates or bandwidth. The values 
assigned by the provider (coding scheme, timeslots) can change dynamically 
during a connection. 
 
The following data rates are possible: 
 
Uplink (TX): 
 
Coding scheme 
1 Timeslot 
CS-1 9.05 
kbps 
CS-2 13.4 
kbps 
CS-3 15.6 
kbps 
CS-4 21.4 
kbps