Datasheet

8 3. Technical Data
Description of the signals on the 9-pin D-SUB connector
9-pin D-Sub 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
Interface speeds of the INSYS GSM small:
300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400,
57600 and 115200 bps.
The baud rate indicates the transmitted bits per second (bps).
Auto baud (automatic baud rata detection) supports the baud rates
4800 bps to 115200 bps.
Data formats of the INSYS GSM small:
8N1, 8E1, 8O1, 8N2, 7E1, 7O1
For activated auto baud, the data format is also detected (exception: 8N2).
ATTENTION! To avoid problems due to undefined settings of baud rate and data format,
we recommend to deactivate the auto baud function.
3.3 Transmission Standards and Protocols
The error correction in the GSM radio network via RLP (Radio Link Protocol) is available by
default.
The support of the individual services depends on the technical support of the GSM
provider and the enabling of the respective services in the SIM card contract.
Version 1.00 / 09.04