Lancer 3W Installation Guide
2-3
2.3 Data
Connector
The Lancer 3W modem uses a standard RS-232 serial interface to connect to the host. The
pinout of the DB-9 host serial connector is shown below:
Note:
Use a straight serial cable, not a null modem cable.
Figure 2. RS-232 Serial Interface Pin Layout
The following table identifies and describes each pin number:
Table 3. RS 232 Serial Interface Pin Numbers
Pin Number
Name Description
1
DCD
Data Carrier Detect
2 TXD
Transmit
Data
3 RXD
Receive
Data
4
DTR
Data Terminal Ready
5 GND
Signal
Ground
6
DSR
Data Set Ready
7
CTS
Clear To Send
8
RTS
Request to Send
9 RI
Ring
Indicator
2.4
Modem Antenna Connector
The antenna connector is a standard 50-ohm TNC female connector. Refer to Section 3.5.1
Mounting The Antenna on page 3-5 for more information.
