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參數(shù)資料
| 型號(hào)： | MH88634B |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉(zhuǎn)換設(shè)備和用戶線之間提供一個(gè)模擬和信號(hào)連接）) |
| 中文描述： | 中央辦公室接口電路（用于中央辦公電話線的接口電路（在音頻轉(zhuǎn)換設(shè)備和用戶線之間提供一個(gè)模擬和信號(hào)連接）） |
| 文件頁數(shù)： | 2/13頁 |
| 文件大?。?/td> | 57K |
| 代理商： | MH88634B |
MH88634B
Advance Information
2-266
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
1
TIP
Tip Lead.
Connects to the "Tip" lead of a Telephone Line.
2
RING
Ring Lead.
Connects to the "Ring" lead of a Telephone Line.
3
XLA
Loop Relay Contact A.
Connects to XLB through the Loop relay (K1) contacts when the
relay is activated.
4
XLD
Loop Relay Contact D.
Connects to XLC through the loop relay (K1) contacts, when the
relay is activated.
5
XLB
Loop Relay Contact B.
Connects to XLA through the loop relay (K1) contacts, when the
relay is activated.
6
XLC
Loop Relay Contact C.
Connects to XLD through the loop relay (K1) contacts, when the
relay is activated.
7-9
IC
Internal Connection.
No connection should be made to this pin.
10
SHK
Switch Hook (Output).
A logic 0 indicates the presence of forward or reverse battery
voltage when LRC is logic 0 and the presence of forward or reverse loop current when LRC
is logic 1.
11
RX
Receive (Input).
4-Wire ground (AGND) referenced analog input.
12
VEE
Negative Supply Voltage.
-5V DC
13
TX
Transmit (Output).
4-Wire ground (AGND) referenced analog output.
14
RV
Ringing Voltage Detect (Output).
A logic low indicates that ringing voltage is across the Tip
and Ring leads.
15
FL
Forward Loop Detect (Output).
In the on-hook state, a logic 0 output indicates that
forward loop battery is present. In the off-hook state, a logic 0 indicates that forward loop
current is present.
16
RL
Reverse Loop Detect (Output).
In the on-hook state, a logic 0 output indicates that
reverse loop battery is present. In the off-hook state, a logic 0 output indicates that reverse
loop current is present.
17
VCC
Positive Supply Voltage.
+5V DC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
TIP
RING
XLA
XLD
XLB
XLC
IC
IC
IC
SHK
RX
VEE
TX
RV
FL
RL
VCC
AGND
LRC
VRLY
LRD
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
相關(guān)PDF資料 |
PDF描述 |
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| MH88634CV-K | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉(zhuǎn)換設(shè)備和用戶線之間提供一個(gè)模擬和信號(hào)連接）) |
| MH88634K | Central Office Interface Circuit Preliminary Information |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88634BT-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
| MH88634BV-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
| MH88634BV-4 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
| MH88634CV-K | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Central Office Interface Circuit |
| MH88634K | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
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