Serial Interface Connectors; Parallel Interface Connector; Rs-232C Serial Port Connector Pin Assignments; Parallel Port Connector Pin Assignments - NEC SP B-Series Service And Reference Manual

Serial Interface Connectors

Pin assignments for the serial interface port connectors are listed in the
following table.
Pin
1
2
3
4
5
6
7
8
9

Parallel Interface Connector

Parallel interface specifications for this port conform to the IBM-PC interface.
Pin assignments for the parallel interface connector are listed in the following
table.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13

RS-232C Serial Port Connector Pin Assignments

Signal
DCD
Serial In#
Serial Out#
DTR#
Ground
DSR
RTS
CTS
RI

Parallel Port Connector Pin Assignments

Signal
Strobe#
Data bit 0
Data bit 1
Data bit 2
Data bit 3
Data bit 4
Data bit 5
Data bit 6
Data bit 7
ACK# (Acknowledge)
Busy
Error
Select
Description
Carrier detect
Receive data
Transmit data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
Ring indicator
Pin
14
15
16
17
18
19
20
21
22
23
24
25
Connector Pin Assignments B-5
Signal
Auto feed#
Fault#
INIT# (Initialize)
SLCT IN# (Select in)
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground