Preliminary Information
MH89625C
MH89625C
MH80625C
K1A
K2A
D1
D3
17
TOUT
Tip
CA
5
1
Test
In
Test
Out
12
CSTi
16
F1i
8
2
24
Ring
ROUT
VREF
6
D4
D2
Tip
TIN
RIN
K2B
R1
K1B
14
C2i
K4A
K3A
C1
15
Q1
to other
circuit
DSTo
R2
13
9oC/W
-48V
Heat sink
DSTi
3
RF2
RF1
7
35
GS
Ring
K3B
K4B
8
11
LED
10
SHK
22
34
RD4
RD1
VAC
K4 RELAY
K1 RELAY
20
19
36
LGND
-5V
90VRMS25Hz
RD2
K2 RELAY
K3 RELAY
37
32
-48V
V
Bat
21
PTC
-48V
RD3
LCA
23
VRLY
Components
D1,D2,D3,D4 IN4004
VDD VEE
AGND RGND
18
31
30
9
Q1 = FET BUZ 22 or equivalent
R1 = 10k Ω +5% 1/4W
R2 = 1k Ω + 5% 1/4W
C1 = 0.01µF + 10% 100V
PTC = 55Ω, 50mA
290V
TISP
+5V
-5V
Figure 3 - Typical Line Card Application
2-281
MITEL [ MITEL NETWORKS CORPORATION ]
