Product guide

Chapter 2: Hardware Components 2-10
DB-9 Serial RS-232 Cable
The Serial RS-232 9-pin cable with a DB-9 male connector (with RS-232 interface) is used to con-
nect the Tenor BX to your PC’s asynchronous serial port. The pin order for DB-9 male and female
connectors are shown in
Figure 2-9 and Figure 2-10.
Figure 2-9 DB-9 Male Connector Pin Order
Figure 2-10 DB-9 Female Connector Pin Order
Figure 2-11 DB-9 Connector Pinouts
Table 2-8 DB-9 Connector Pinouts
Pin # Function Description Pin #
1 DTR Data Terminal Ready 1
2 TXD Transmit Data 2
3 RXD Receive Data 3
4 CD Carrier Detect 4
5 GND Signal Ground 5
6 N.C. No Connect 6
7 N.C. No Connect 7
8 N.C. No Connect 8
9 N.C. No Connect 9
1 2 3 4 5
6 7 8 9
5 4 3 2 1
9 8 7 6
Pin # Connects to Pin #
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
VoIPon www.voipon.co.uk [e-mail] Tel: [phone] Fax: [phone]