Connectors Accessible To The User; Keyboard And Mouse Ports; Serial Ports; Table A-2 Keyboard And Mouse Connectors - Silicon Graphics 1450 Maintenance Manual

A: Technical Reference

Connectors Accessible to the User

Keyboard and Mouse Ports

Serial Ports

90
Table A-1 (continued)
Type Qty From
AC distribution 1 Power cord Power supply cage
AC power 1 AC
distribution
This section describes the rear panel I/O ports.
These identical PS/2-compatible ports share a common housing. The top one is the
mouse and the bottom one is the keyboard. Table A-2 shows the cable pinout
assignments for the keyboard and mouse connectors.
Table A-2 Keyboard and Mouse Connectors
Mouse Pin Signal
1 MSEDAT (mouse data)
2 No connection
3 GND (ground)
4 Fused VCC (+5 V)
5 MSECLK (mouse clock)
6 No connection
The baseboard provides two RS-232C serial ports (COM1 is to the left, COM2 is to the
right). They are D-subminiature 9-pin connectors. Each serial port can be enabled
separately with the configuration control provided on the baseboard.
SGI 1450 server Cables and Connectors
To
External interface
Keyboard Pin
1
2
3
4
5
6
Interconnect Description
3-pin PVC double insulated
power cordage
Recommend 3-pin SJT power
cord
Signal
KEYDAT (keyboard data)
No connection
GND (ground)
Fused VCC (+5 V)
KEYCLK (keyboard clock)
No connection
007-4276-001