Quintum Technologies Tenor Call Relay 60 - Manual (Page 26)

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Chapter 2: Hardware Components
DB-9 Serial RS-232 Cable
The Serial RS-232 9-pin cable DB-9 (male/female) cable is used to connect the Call Relay 60 to
your PC’s RS-232 serial port. The pin order for DB-9 male and female connectors are shown in
Fig-
ure 2-7 and Figure 2-8 .
Figure 2-7
1 2 3 4 5
6 7 8 9
DB-9 Male Connector Pin Order
Figure 2-8
5 4 3 2 1
9 8 7 6
DB-9 Female Connector Pin Order
Figure 2-9
Pin # Con nects to Pin #
1
2
3
4
5
6
7
8
9 1
2
3
4
5
6
7
8
9
DB-9 Connector Pinouts
Table 2-6 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