tion
參數(shù)資料
型號(hào): 101-0788
廠商: Rabbit Semiconductor
文件頁(yè)數(shù): 27/90頁(yè)
文件大?。?/td> 0K
描述: COMPUTER SGL-BOARD OP6600 W/SRAM
標(biāo)準(zhǔn)包裝: 1
系列: SBC
模塊/板類型: 單板計(jì)算機(jī)模塊
適用于相關(guān)產(chǎn)品: OP6600
其它名稱: 101-788
101-788-ND
User’s Manual
29
3.5 Speaker
The Intellicom comes with a 35
speaker that is controlled through the Dynamic C func-
tion spkrOut. Both the volume and the frequency of the signal are set with this function
call. The maximum average volume was measured to be 75 dBA @ 30 cm (12 inches) from
the speaker. Figure 13 shows typical volume measurements for various frequencies with the
speaker grille open and closed to maintain water resistance for the front mounting panel.
Figure 13. Intellicom Speaker Sound Pressure Level
30 cm (12 inches) from Speaker
3.6 Vacuum Fluorescent Display
A vacuum fluorescent display (VFD) may be
substituted for the LCD by removing R22 and
substituting a VFD for LCD. Note that a VFD
has no backlighting and no contrast control.
NOTE: Contact your Rabbit sales repre-
sentative for information on ordering this
option from the factory.
The instructions for accessing the display are
similar to those for accessing the keypad insert
Figure 14. Location of Display Control
Resistor, R22
40
50
60
70
80
90
100
110
0
2000
4000
6000
8000
10000
12000
14000
FREQUENCY (Hz)
SO
UND
PRESSURE
LEVEL
(dBA)
Grille open
Grille closed
LCD
VFD
DISPLAY
90
15
65
40
U4
2
1
J2
Q2
R15
R14
R6
R28
C1
1
JP2
JP3
U5
C13
TP10
R18
R17
C7
R16
R19
R20
R21
R22
TP18
TP17
TP19
TP16
TP15
TP14
TP13
TP12
TP11
R86
R85
U6
C19
C20
C17
TP20
15
J3
C21
4 X 20 LCD
GND
2 X 20 LCD
R22
FD
Flash
EPROM
Flash
EPROM
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