Pulsar TC-10B, User Manual

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9.1 Power Supply Module
Description
The Power Supply Module for the
TC–10B/TCF–10B has dual dc/dc high-frequency
switching regulators which generate regulated
voltage outputs of ±20Vdc (between 1.5A and
2.0A for operation of the TC–10B/TCF–10B
modules. It also provides protection from battery
surge, transients, short circuits, and reverse
voltage. The Power Supply Module can receive
inputs from three available groups of station
batteries: 38-70Vdc, 88-140Vdc, and 176-
280Vdc.
9.1.1 Power Supply Control Panel
(This panel is shown in Figure 9-1.)
Front panel controls are as follows:
1) Push button Switch (with power-on
indicator), ON/OFF (S1).
2) LEDs for indicating power:
• INPUT, Red (LED1)
• OUTPUT, Red (LED2)
3) Test Jacks:
• +20Vdc, Red (TP3)
• Common, Green (TP2)
• -20Vdc, Black (TP1)
An optional low-voltage alarm relay indicating
loss of power is available. When the alarm is
activated, LED2 is “OFF”. LED1 may be “OFF”
if input power is lost.
Schematic 1617C38-2
Parts List 1617C38-2
Copyright © 2003 Pulsar Technologies, Inc.
Chapter 9. Power Supply Module
9
Table 9–1. 1617C38 Styles and Descriptions.
Group Description
G01 48V WITH ALARM RELAY
G02 125V WITH ALARM RELAY
G03 250V WITH ALARM RELAY
POWER
INPUT
OUTPUT
+20V
COMMON
–20V
POWER SUPPLY
Figure 9–1.
Power Supply Module Front Panel.