Datasheet

INSYS GPRS 5.0 serial Technical Data
Mai 06 77
12.4 Serial Interface
Layout of the 9 pin D-Sub jack
Description of the signals at the 9 pin D-SUB jack of the DCE:
9 pin D-SUB
DCE pin no.
Description Function CCITT
V-24
EIA
RS232
DIN
66020
E/A DCE to
DTE
1 DCD Data Carrier Detect 109 CF M5 O
2 RXD Receive Data 104 BB D2 O
3 TXD Transmit Data 103 BA D1 I
4 DTR Data Terminal Ready 108 CD S1 I
5 GND Ground 102 AB E2
6 DSR Data Set Ready 107 CC M1 O
7 RTS Request To Send 105 CA S2 I
8 CTS Clear To Send 106 CB M2 O
9 RI Ring Indication 125 CE M3 O
12.5 Interface speeds
Baudrate in bps
300 1.200 4.800 19.200* 57.600*
600 2.400 9.600* 38.400* 115.200*
*) TCP transparent
12.6 SIM-Card
To operate, the INSYS GPRS 5.0 serial requires a 3V/1.8V SIM card from a GSM provider.
The SIM card is the identification towards the network provider.
The SIM card must be placed into the carrier with the contacts downward to ensure that
the contacts are on top of each other.
Change the SIM card only when the device is switched off.
12.7 Internal Design
For the INSYS GPRS 5.0 serial, a µcontroller is placed in series between the external serial
interface and the GSM/GPRS engine.
All commands sent to the INSYS GPRS 5.0 serial via the serial interface are first received
and evaluated by the µcontroller.