44
SERVSWITCH™ PROFESSOR
4.3.20 S
ET
K
EYBOARD
T
YPEMATIC
Most keyboards have an internal seven-bit “typematic” setting which governs the
way the keyboard responds when you hold a key down to force it to repeat. The five
“low” bits of this setting represent the rate at which the key repeats; the two “high”
bits represent the delay after you begin holding down the key before it begins to
repeat. Sometimes a keyboard’s typematic setting isn’t suitable for a given user or
for a given application.
To change the keyboard’s typematic setting at a particular station, first select that
station (see the Note above
Section 4.3.17
), then issue the Set Keyboard Typematic
command: Press and release the left Control key, type [A] followed by the desired
“typematic value,” and press [ENTER]. The “typematic value” is the decimal
equivalent of the binary seven-bit typematic setting: While the typematic setting =
delay bits + rate bits, the typematic value = decimal delay value + decimal rate value
(see Table 4-4 below and Table 4-5 on the next page). For example, to set the
shared keyboard to register a key 16 times per second after the key has been held
down for half a second (typematic value = 7 + 32 = 39), type in
[Ctrl][A][3][9][ENTER].
Issue the Keep Settings command after you enter this command.
Table 4-4. Typematic delay.
Decimal
Binary
Delay Before Key Repeats
Value
Bit Values
0
00[
xxxxx
]
1
⁄
4
second (250 ms)
32
01[
xxxxx
]
1
⁄
2
second (500 ms)
64
10[
xxxxx
]
3
⁄
4
second (750 ms)
96
11[
xxxxx
]
1 second (1000 ms)
