Datasheet

Technical Data INSYS Modem 336/56k 4.1 (UL)
13.3 Serial interface
Layout of the 9-pin D-SUB jack
Description of the signals on the 9-pin D-SUB connector on DCE side:
9-pin D-Sub
DCE Pin No.
Description
AT com-
mand
Function
CCITT
V-24
EIA
RS232
DIN
66020
E/A DCE
to DTE
1 DCD AT&C 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 AT&D Data Terminal Ready 108 CD S1 I
5 GND Ground 102 AB E2
6 DSR AT&S Data set ready 107 CC M1 O
7 RTS AT&R Request to send 105 CA S2 I
8 CTS AT&K Clear to send 106 CB M2 O
9 RI Ring Indication 125 CE M3 O
13.4 Possible Interface Speeds
Baud rate in bps
300 4.800 28.800
600 9.600 38.400
1.200 14.400 57.600
2.400 19.200 115.200
92 July 06