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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 (-)
LED: Status Indication
The LED indicator is shown in Figure 2.
LED Status:
OFF
Slow flash
Fast flash
ON
Unitronics Industrial Automation Systems
Indicates the modem is:
Switched OFF / Not ready
Switched on, registered on network
Transmission mode
Connecting to network
Using the Wavecom Modem Kit
1
Figure 4
Side View
6
11
3
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