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P/N 480-0005-00-15 2-35
Chapter 2: Hardware Components
DB-9 to DB-9 Null Modem Cable (for System Controller card)
The Null Modem 9-pin cable with a DB-9 male connector (with RS-232 interface) is used to connect the
Tenor CMS to your PC’s asynchronous serial port. The pin order for DB-9 male and female connectors are
shown in Figure 2-32 and Figure 2-33.
Figure 2-32 DB-9 Male Connector Pin Order
Figure 2-33 DB-9 Female Connector Pin Order
Figure 2-34 DB-9 Connector Pinouts
Table 2-14 DB-9 Connector Pinouts
Pin # Function Description Pin #
1 RSVD Reserved 1
2 RXD Receive Data 2
3 TXD Transmit Data 3
4 RSVD Reserved 4
5 GND Signal Ground 5
6 RSVD Reserved 6
7 RSVD Reserved 7
8 RSVD Reserved 8
9 N/C Not Connected 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
1
2
3
4
5
6
7
8
9
9