2.d
S
ERIAL
I
NTERFACE
C
ABLING
Fig. 2 shows recommended “full-handshake” RS-232-C cabling between the PC-
HSICA card and a Daytronic instrument’s 25-pin
COMPUTER INTERFACE PORT
(e.g., for a System 10 mainframe). Fig. 3 shows recommended “full-handshake”
cabling between the PC-HSICA and a Daytronic 9-pin COMPUTER INTERFACE
PORT (e.g., for a 3500 or 4000 Series instrument). Daytronic offers a standard 10-
foot cable (No. 52203) for connecting a System 10 to the PC-HSICA.
FOR FULL DETAILS CONCERNING CABLE CONNECTIONS BETWEEN THE PC-
HSICA’S
RS-232-C INTERFACE CONNECTOR
AND THE
COMPUTER INTER-
FACE PORT
OF A SPECIFIC DAYTRONIC INSTRUMENT, SEE THE DISCUSSION
OF “FULL-HANDSHAKE” SERIAL CABLING IN THE RELEVANT SECTION OF THAT
INSTRUMENT’S INSTRUCTION MANUAL. YOU SHOULD ALSO STUDY THE LIT-
ERATURE ACCOMPANYING YOUR SOFTWARE SERIAL DRIVER, TO DETERMINE
THE PRECISE HANDSHAKE THAT MAY BE CALLED FOR. IF YOU ARE IN ANY
DOUBT AS TO THE SUITABILITY OF A PARTICULAR CABLE CONFIGURATION
FOR YOUR APPLICATION, FEEL FREE TO CONTACT THE
DAYTRONIC SERVICE
DEPARTMENT
FOR ASSISTANCE.
Note that it is NOT necessary to tie pins 5 and 6 at the PC-HSICA end of the cable
(this is required only for direct connection between the instrument and an IBM or
IBM-compatible serial port). Note too that a separate power supply is not
required for the Model 10E422 RS-232-C to RS-422 Converter when it connects
directly to a PC-HSICA card.
2-4
2
S
ETUP OF
PC-HSICA C
OMMUNICATIONS
2.d S
ERIAL
I
NTERFACE
C
ABLING
1
2
3
5
7
20
1
2
3
5
7
20
Daytronic 25-Pin
Computer Interface Port
PC-HSICA
Interface Port
Shield
GND (Shield)
XMIT
RECEIVE
CTS
SGND
DTR
GND (Shield)
XMIT
RECEIVE
CTS
SGND
DTR/RTS
Fig. 2 Full-Handshake Cabling Between the PC-HSICA
Card and a Daytronic 25-Pin Computer Interface Port
