Appendix
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103
10.9 PS/2 Keyboard Interface
Serial port 1 (connector J9) on the
820i
CPU board provides a PS/2-type keyboard interface (Scan Code Set 1 only) for use
with a remote keyboard.Table 10-9 shows the pin assignments for a PS/2 keyboard cable.
Table 10-10 summarizes the
820i
-specific functions provided by the keyboard interface; most other alphanumeric and
navigational keys provide functions equivalent to those typical for PC operation. Menu parameters and serial commands that
affect indicator keypad operation (including the KBDLCK, ZERONLY, and KLOCK serial commands) also affect the remote
keyboard.
The keyboard interface is not hot-pluggable. Disconnect power to the 820i before connecting the keyboard cable to
the Port 1 connector.
Pin
Signal
Male Connector
1
DATA
2
(reserved)
3
GND
4
+5V
5
CLOCK
6
(reserved)
Table 10-9. PS/2 Keyboard Connector Pin Assignments
Key
Function
F1
Softkey 1
F2
Softkey 2
F3
Softkey 3
F4
Softkey 4
F5
Softkey 5
F6 (Alt+Z)
ZERO key
F7 (Alt+G)
GROSS/NET key
F8 (Alt+T)
TARE key
F9 (Alt+U)
UNITS key
F10 (Alt+P)
PRINT key
F11
Not used
F12
Print Screen
Same as PRINT key, in both normal and
setup modes
Table 10-10. PS/2 Keyboard Functions
1
2
3 4
5
6
Note
Содержание 820i
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