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參數(shù)資料
| 型號(hào)： | MH88632BT |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Central Office Interface Circuit Preliminary Information |
| 中文描述： | 中央辦公室接口電路的初步信息 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 95K |
| 代理商： | MH88632BT |
Preliminary Information
MH88632B
2-241
16
BRC
Bias Relay Control (Input).
A logic 1 activates BRD. The Bias Relay (K2) is used to
connect Tip and Ring to -48V via bias resistors. This input should be connected to logic 0
when not used.
17
GRC
Ground Ring Relay Control (Input).
A logic 0 activates GRD. The Ground Ring Lead
Relay (K3) is used to connect Ring to AGND via a bias resistor. This input should be
connected to logic 1 when not used.
18
AGND
Analog Ground.
4-Wire Ground. Normally connects to system ground. This pin must be
connected to the system ground in Ground Start applications.
19
NATT
Network Balance AT&T Node.
Used when setting the Network Balance Impedance to
AT&T compromise network.
20
N1
Network Balance Node 1.
Used when a Network Balance Impedance which differs from
the Input Impedance is required or when NATT is used.
21
N2
Network Balance Node 2.
Used when a Network Balance Impedance which differs from
the Input Impedance is required.
22
Z900
Input Impedance 900
Node.
Connects to Z1 when selecting an Input Impedance of
900
.
23
Z1
Input Impedance Node 1.
Used when setting the Input Impedance.
24
Z2
Input Impedance Node 2.
Used when a user defined Input Impedance is required.
25
TX
Transmit (Output).
4-Wire ground (AGND) referenced analog output.
26
RX
Receive (Input).
4-Wire ground (AGND) referenced analog input.
27
GTX0
Transmit Gain Node 0.
Connects to GTX1 for 0dB transmit gain.
28
GTX1
Transmit Gain Node 1.
Connects to GTX0 for 0dB transmit gain or via a resistor to AGND
for transmit gain programming.
29
GRX0
Receive Gain Node 0.
Connects to GRX1 for 0dB receive gain.
30
GRX1
Receive Gain Node 1.
Connects to GRX0 for 0dB receive gain or via a resistor to AGND
for receive gain programming.
31
IC
Internal Connection.
No connection should be made to this pin.
32
Z600
Loop Impedance 600
Node.
Connects to Z1 when selecting an Input Impedance of
600
.
33
NS
Network Balance Setting (Input).
Used to select the Network Balance impedance.
34
TG
Tip Lead Ground Detect (Output).
A logic 0 output indicates that the Tip lead is at ground
(AGND) potential.
35
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.
36
RV
Ringing Voltage Detect (Output).
A logic low indicates that ringing voltage is across the
Tip and Ring leads.
37
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 output indicates that forward
loop current is present.
38
RG
Ring Lead Ground Detect (Output).
A logic 0 output indicates that the Ring lead is at
ground (AGND) potential.
39
VEE
Negative Supply Voltage.
-5V DC
40
VCC
Positive Supply Voltage.
+5V DC
Pin Description (continued)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MH88634-2 | 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）) |
| MH88634BV-2 | SWITCH PB DPDT MINI RTANG ALTACT |
| MH88634B | Central Office Interface Circuit Advance Information |
| MH88634BT-2 | Central Office Interface Circuit Advance Information |
| MH88634BV-4 | Central Office Interface Circuit Advance Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88633AV-PE4 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MH88634 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634B | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
| MH88634BT-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
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