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參數(shù)資料
| 型號： | NT91214D |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Tone/Pulse Dialer |
| 中文描述： | 音頻/脈沖撥號器 |
| 文件頁數(shù)： | 7/23頁 |
| 文件大?。?/td> | 223K |
| 代理商： | NT91214D |
NT91214/15 Series
7
V1.0
Pin Descriptions (continued)
Pin No.
NT91215A
NT91214A
NT91215B
NT91214B
NT91215C
NT91214C
NT91215D
NT91214D
Designation
I/O
Description
1
1
2
2
HK
I
Hook switch input
This inverter input pin detects the state
of the hook switch contact. "Off Hook" is
represented by a VSS
condition. "On
Hook"
is
represented
condition.
by
a
VDD
(N.A.)
10
(N.A.)
11
KT
O
Key-in tone output
This N-channel open drain pin sends out
a "beep" tone for each PULSE mode key
entry, along with entries of accepted
function keys (RD, T, F1 F2, and P
keys). The tone output frequency is
437Hz and tone duration is 23 ms.
9
11
10
12
DP
O
Dialing pulse output
This is an N-channel open drain output.
The normal output will be "ON" during
break and "OFF" during make in the
PULSE DIALING mode.
相關PDF資料 |
PDF描述 |
|---|---|
| NT91215 | Tone/Pulse Dialer |
| NT91215A | Tone/Pulse Dialer |
| NT91215B | Tone/Pulse Dialer |
| NT91215C | Tone/Pulse Dialer |
| NT91215D | Tone/Pulse Dialer |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NT91215 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Dialer |
| NT91215A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Dialer |
| NT91215B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Dialer |
| NT91215C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Dialer |
| NT91215D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone/Pulse Dialer |
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