HT9315 Series
Rev. 1.20
7
October 1, 2002
Functional Description
Keyboard matrix
C1~C5 and R1~R4 form a keyboard matrix. Together
with a standard 4 5 keyboard, the keyboard matrix is
used for dialing entries. In addition, the keyboard ma-
trix provides resistor option for different dialing specifi-
cation selections. The keyboard arrangement for each
of the HT9315 series are shown in the Keyboard Infor-
mation.
Tone frequency
Tone Name
Output Frequency (Hz)
% Error
Specified
Actual
R1
697
699
+0.29%
R2
770
766
0.52%
R3
852
847
0.59%
R4
941
948
+0.74%
C1
1209
1215
+0.50%
C2
1336
1332
0.30%
C3
1477
1472
0.34%
Note:%Errordoesnotcontainthecrystalfrequencydrift
Dialing specification selection
Various dialing specifications can be selected by adding
resistors across keyboard matrix pins. The allowable
option resistor connections are shown on the table.
All the resistors are 330k . The resistor option functions
and the default specifications without option resistors
are listed below.
Option
Resistor
Option
Function
Default
(No Resistor)
R
K12
Make/Break Ratio
Selection
40:60
R
K13
Flash Function and
FlashTimeSelection
Flash=controlfunction
Flash time= 600ms
R
K14
R
K21
Pause & P
Duration Selection
T
T
P
= 3.6s
T
P
T
= 3.6s
R
K31
Pulse Number
Selection or IDD
Lock Selection
N or Keyboard
Operated Lock
R
K41
R
K51
Keypad Form
FormA
M/B ratio selection table
R
K12
M/B Ratio (%)
No
40:60
Yes
33.3:66.6
Flash function/time (duration) selection table
HT9315x
R
K13
R
K14
Flash
Function
Flash
Time (T
F
)
No
No
Control
600ms
No
Yes
Digit
600ms
Yes
No
Digit
98ms
Yes
Yes
Digit
300ms
HT9315xL
R
K13
R
K14
Flash
Function
Flash
Time (T
F
)
No
No
Control
600ms
No
Yes
Control
600ms
Yes
No
Control
98ms
Yes
Yes
Control
300ms
Pause and P
T duration selection table
R
K21
T
P
(sec)
T
P
T
(sec)
No
3.6
3.6
Yes
2
1
Pulse number selection table
This table shows pulse number selections for
HT9315x. The table for HT9315xL is used to select
IDD lock function.
R
K31
R
K41
Pulse
Number
No
No
N
No
Yes
N+1
Yes
No
10 N
Yes
Yes
+
,
-
-
.
,
-
.
,
.
-
.
,
+