Insys GSM 4.2 Compact 11-02-01-03-04.002 Manuale Utente

INSYS GSM 4.2  
INSYS GSM 4.2 compact 

 Overview 

 

Sep-06 

            15 

Pin layout of the serial interface RS232, 9-pin SUB-D connector with threaded joint: 

Pin 

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 

For the data connection to the GSM network, the INSYS GSM requires a SIM card from a 
GSM provider. The SIM card is the identification towards the network provider. 
The slot for the SIM card is on the front of the INSYS GSM. 

 

 

¾

  Only 3V cards may be used. 

¾

  Changing the SIM card is only permitted when the device is 

switched off. 

The GSM provider has to enable the requested services for the SIM card. A card can be 
enabled for both voice and data services at the same time. The following cards and con-
tracts are normally available: 

Function 

Prepaid card 

Contract for voice 
transmission 

Contract for data 
transmission 

Outgoing data connec-
tion 

9

 

9

 

9

 

Incoming data connec-
tion 

- - 

9

 

SMS 

9

 

9

 

9

 

Voice connection 

9

 

9

 

- 

 

Note 
Generally, different phone numbers are assigned to the different 
services (voice, data connections with 2400, 4800 and 9600 bps). 
The GSM network does not switch a data call to a phone number for 
voice connections, for example.