Table 41. RS-422C Connector Pin Assignments
Pin
Signal Name
Description
15
-RXD
Receive Data
17
+RXD
Receive Data
19
-TXD
Transmit Data
25
+TXD
Transmit Data
Table 42. Parallel Connector Pin Assignments
Pin
Signal Name
Description
1
-STROBE
Strobe
2-9
Data
Eight Data Lines
10
-ACKNLG
Acknowledge
11
BUSY
Busy
12
PE
Out of Paper
13
SLCT
Printer Selected
14
-AUTO FEED XT
Automatic Line Feed on
EOL
15
Unused
16
LOGIC GROUND
Logic Ground
17
CHASSIS
GROUND
Chassis Ground
18
+5 V DC
NPS 540+ (P/N 30H4052)
Power
19-30
GROUND
Ground
31
-INIT
Initialize Printer
Chapter 3. Circuit Diagrams
263
Summary of Contents for 4247
Page 1: ...4247 Printers Maintenance Information Document Number SA24 4400 05 Part Number 27P8450 IBM ...
Page 241: ...e90apc15 Figure 24 Main Input Power Supply Ground Chapter 3 Circuit Diagrams 241 ...
Page 257: ...Figure 32 Stacker Motor Wiring Chapter 3 Circuit Diagrams 257 ...
Page 261: ...Stacker Cable Wiring Figure 36 Tractor Assembly Cable Wiring Chapter 3 Circuit Diagrams 261 ...