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007-4486-001
A: Technical Specifications
Serial
Table A-1 shows cable pinout assignments for the serial ports.
Parallel
Table A-2 shows the cable pinout assignments for the IEEE 1284-C parallel port for the
Silicon Graphics floppy drive or for a printer. (The floppy drive has an additional
connector for a printer.)
Table A-1
Serial Port Pinout Assignments
Pin
Assignment
Description
1
DCD
Data Carrier Detect
2
RD
Receive Data
3
TD
Transmit Data
4
DTR
Data Terminal Ready
5
SG
Signal Ground
6
DSR
Data Set Ready
7
RTS
Request to Send
8
CTS
Clear to Send
9
RI
Ring Indicator
Table A-2
Parallel Port (IEEE 1284-C) Pinout Assignments
Pin
Assignment
Pin
Assignment
1
BUSY
19
SIGNAL GROUND (BUSY)
2
SELECT
20
SIGNAL GROUND (SELECT)
3
nACK
21
SIGNAL GROUND (nACK)
4
nFAULT
22
SIGNAL GROUND (nFAULT)
5
pERROR
23
SIGNAL GROUND (pERROR)