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Using the Wavecom Modem Kit
Unitronics Industrial Automation Systems
3
Modem RS232 port pin-out
15 pin SUB-D, female connector (High density):
Pin Description
1
DCD (Data Carrier Detect)
2
TXD (Transmit Data)
3 Reserved
4 MICROPHONE
(+)
5 MICROPHONE
(-)
6 RXD
(Receive
Data)
7
DSR (Data Set Ready)
8
DTR (Data Terminal Ready)
9 GND(Signal
Ground)
10 SPEAKER
(+)
11
CTS (Clear To Send)
12
RTS (Request To Send)
13 RI
(Ring
Indicator)
14 RESET
15 SPEAKER
(-)
6
1
11
Figure 4
Side View
LED: Status Indication
The LED indicator is shown in Figure 2.
LED Status:
Indicates the modem is:
OFF
Switched OFF / Not ready
Slow flash
Switched on, registered on network
Fast flash
Transmission mode
ON Connecting
to
network
