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R
100
+
8
U
MC33172
-
4
R
121K
1
R
110K
1
MDS 05-2818A01, Rev. C
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-8466-MDS-P60-Compact-Enclosure-(One-Radio).aspx
R
C
10K
0.1UF
1N5231
3
2
1
CR
U
MC33172
-
2
1
3
R
1ME
CR
BA TTER
J1
Figure 21. Low Voltage Disconnect Assembly, P/N 03-3077A01
Use of the Battery Reset Switch (SW1)
Normally, the operation of the Low Voltage Disconnect Assembly is fully
automatic. The only exception is when replacing a discharged battery with a
charged unit before AC power has returned. In this case, it is necessary to press
the
switch on the assembly after installing the new battery. (See
BAT. RESET
Figure
22.) Use a pen or other pointed object to press the switch. This allows
the replacement battery to immediately supply power to the transceiver.
Figure 22. Low Voltage Disconnect Assembly
For proper opera tion of the Low V oltage Disconnect assembly,
NOTE:
14.10 Vdc (±0.1 V) must be present at the battery connector on the
Interface/Utility Board (with the battery disconnected). This is the
standard factory setting.
MDS P-60/P-60 HL Reference Manual
Invisible place holder
C
10UF
K1
CR
3
SW
2
1
Q
3
R
1
10K
2
MM BT3904L
T1
1
2
3
Schematic Diagram
Invisible place holder
E1
E1+
E2
GN
RESE
U
MC33172
5
7
6
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41
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