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EM91850 데이터시트(PDF) 4 Page - ELAN Microelectronics Corp

부품명 EM91850
상세설명  TONE/PULSE DIALER WITH HF, HD, REDIAL AND VOLUME CONTROL FUNCTION
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제조업체  EMC [ELAN Microelectronics Corp]
홈페이지  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM91850 데이터시트(HTML) 4 Page - ELAN Microelectronics Corp

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* This specification are subject to be changed without notice.
4
4.28.1999
EM91850
TONE/PULSE DIALER WITH HF, HD, REDIAL
AND VOLUME CONTROL FUNCTION
Preliminary
FUNCTION DESCRIPTIONS
Dialer Option selection
The EM91850 incorporated a special keyboard scanning function that is connecting a resistor ( typically is
560 K
Ω ) on keyboard scan pin to select many telephone specifications.
The specifications are described as follow :
a. M/B ratio
K2
M/B ratio
NR
40:60
R-Vss
33:66
b. Auto Insert Pause time
d. Mode
K3
Auto Insert
K5
Mode
Pause time
NR
Disable
NR
Tone
R-Vss
Enable
R-Vss
Pulse
Normal Dialing :
Press the digital key directly on keyboard which number can be dialing out and stored in LNB memory auto
matically. Operating procedure described as following:
• To select Pulse or Tone mode.
• Off-Hook or turn on HF function.
• Keying d1,d2,....dn. The "d" expressed digital key pressed that include 1~9, *, 0, #, P, and P
→T keys. The "n"
expressed unlimited.
• The numbers d1,d2,......, dn will be dialed out in Pulse or Tone mode as selection.
LNB Redial Function :
Storing :
In normal dialing mode, every digital key was entry which number will be stored in LNB memory automatically.
If entry digits are more than 32 digits, the redial function of LNB memory will be disabled, otherwise, these
numbers stored in LNB memory can be redial output.
Redialing :
EM91850 provide Redial and One Key Redial function
(1) Redial function
Off-Hook normal dialing directly keying "F" key (or ON-OFF Hook once) and key-in "RD" keyboard.
The numbers stored in LNB memory will be dialed out.
(2) One Key Redial function
Off-Hook normal dialing, if busy, press the "RD" key directly then the line will be broken about 1.2 sec
with Trp redial pause time and dial out the numbers stored in LNB memory automatically.


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