SAB-QS Quick Start
3 of 5
November 9, 2000
Rapid Controls Inc.
Box 8390
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Rapid City, SD
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57709
Phone: 605-348-7688
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Fax: 605-341-5496
http://www.rapidcontrols.com/
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email: [email protected]
The following connections should be made for operation of quadrature channel 1:
Pin 8 is connected to the quadrature line A input of the controller.
Pin 9 is connected to the quadrature line /A (A not) input of the controller.
Pin 10 is connected to the quadrature line B input of the controller.
Pin 11 is connected to the quadrature line /B (B not) input of the controller.
Pin 14 is connected to logic ground.
4.
Serial Communications (Connector JP1 and Jumper X2)
Connector JP1 provides serial communications (in addition to other features, see below). Both RS-232
and RS-485 are available. For more information on using RS-485, see the SAB-QS manual. Jumper X2
must be set 2-3 for RS-232. The following pins must be connected for RS-232 communications:
Pin 1 is connected to logic ground on the host computer (pin 5 on a DB-9 connector, pin 7 on a
DB-25 connector).
Pin 2 is the SAB-QS’s receive line and is connected to the host computer’s transmit line. (pin 3 on
a DB-9 connector, pin 2 on a DB-25 connector)
Pin 3 is the SAB-QS’s transmit line connected to the host computer’s receive line. (pin 2 on a DB-
9 connector, pin 3 on a DB-25 connector)
If the host computer requires the use of hardware handshaking, the host’s DTR line must be tied to
the host’s DSR line (pin 4 to pin 6 on a DB-9), and the host’s RTS line must be tied to the host’s
CTS line (pin 7 to pin 8 on a DB-9).
Host DB-9
5
9
4
8
3
7
2
6
1
JP1
SAB-Q2 RS-232
1
2
3
4
5
6
7
8
9
10
Figure 2: Diagram of SAB-QS RS-232 Serial Cable
Note: Wires between pins 4 and 6 and pins 7 and 8 can be omitted if host computer does not require hardware
handshaking.
After connecting the host computer to the SAB-Q2 and setting the correct communications parameters,
apply power to the SAB-Q2. Press the spacebar several times quickly. The SAB-Q2 will respond with
a menu. If the SAB-Q2 does not present a menu, check the serial cabling and software setup, make
sure jumper X2 is set correctly: 1-2 for RS485 or 2-3 for RS232.
