Texas Instruments 3000 Benutzerhandbuch
G
Connector Pin Assignments
RS-232C Connector
Nine-Pin RS-232C Serial Connector
Pin No. Signal Name
Abbreviation
Direction
1
Carrier detect
CD
Input
2
Receive data
RD
Input
3
Transmit data
TD
Output
4
Data terminal ready
DTR
Output
5
Signal ground
SG
6
Data set ready
DSR
Input
7
Request to send
RTS
Output
8
Clear to send
CTS
Input
9
Ring indicator
Pi
Input
25-Pin Centronics-Type
Parallel Connector
Parallel Connector
Pin No. Signal Name
Abbreviation
Direction
1
Strobe
STROBE-
Output
2
Data 0
DATA0
Output
3
Data I
DATA1
Output
4
Data 2
DATA2
Output
5
Data 3
DATA3
Output
6
Data 4
DATA4
Output
7
Data 5
DATA5
Output.
8
Data 6
DATA6
Output
9
Data 7
DATA7
Output
10
Acknowledge
ACK-
Input
11
Busy
BUSY
Input
12
Paper empty
PE
Input
13
Select
SLCT
Input
14
Auto feed
AUTO FEED-
Output
15
Printer error
PERROR-
Input
16
Initialize printer
INIT-
Output
17
Select input
SLCT IN-
Output
18-25
Ground
GND
Connector Pin Assignments G- 1