MH88632BT Ver la hoja de datos (PDF) - Mitel Networks
Número de pieza
componentes Descripción
Fabricante
MH88632BT Datasheet PDF : 17 Pages
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Preliminary Information
MH88632B
R1
K2A
48V Battery
R2
K2B
MH88632B
+5V
Tip
Ring
Protection
Circuit
1
TIP
2
RING
R3
K3
+5V
K1
K2
K3
Loop relay Control
Bias Relay Control
Ground Relay Control
K1A
K1B
13
LRD
14 BRD
8
GRD
12
VRLY
11
RGND
15
LRC
16
BRC
17
GRC
3
XLA
4 XLB
5 XLC
6 XLD
40
VCC
28
GTX1
27
GTX0
25
TX
GRX1 30
29
GRX0
26
RX
Z1 23
Z600 32
33
NS
34
TG
35
RL
36
RV
37
FL
RG 38
NOTES:
1) Configured for 0dB Gain, 600Ω Input Impedance
and 600Ω Network Balan ce Impedance
2) K1, K2 are E/M FORM C
3) K3 is E/M 1 FORM C
4) R1 = R2 = 30.9kΩ, 1%, 5W
5) R3 = 470Ω, 5%, 5W
6) K2, K3, R1, R2, R3 are required for Ground Start only
7) C1, C2 are decoupling capacitors
AGND VEE
18 C2 39
-5V
C1
Analog Out
Analog In
Tip Ground Detect
Reverse Loop Detect
Ringing Voltage Detect
Forward Loop Detect
Ring Ground Detect
Figure 3 - Typical Combined Loop Start and Ground Start Appliation Circuit
2-245
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