RI-CTL-MB2B-30 Datasheet, PDF (19/40 Pages) Texas Instruments – Series 2000 Reader System

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Power Supplies
2.5 Power Supplies
In this section we describe the various Power Supply possibilities for the Series 2000 Control Module.
These are:
• The Series 2000 Control Module and RF Module are both powered by a regulated Power Supply (see
Section 2.5.1).
• The Control Module and the RF Module logic circuitry are powered by a non-regulated Power Supply,
and the RF module power circuits are separately supplied by a regulated Power Supply (see Section
2.5.2).
• The Control Module and the RF Module logic circuitry are powered by a regulated (5 V) Power Supply,
and the RF Module power circuits are separately supplied by a regulated Power Supply (see Section
2.5.3).
When the Series 2000 Control Module control logic circuitry is powered by an external regulated (5 V)
Power Supply, Jumper JP6 must be left out.
CAUTION
The supply voltage range that can be used depends on the RFM used,
therefore in all cases, refer to section 3.2.1 Recommended Operating
Conditions. Electrical Characteristics for minimum,nominal and maximum input
supply levels. For RFM power supply requirements please refer to the relevant
RFM Reference Guide.
CAUTION
Please be very careful to ensure that you use the correct polarity in all of these
methods of Power Supply as there is no reverse polarity protection built into the
Control Module.
2.5.1 Common DC Power Supply for Both Control and RF Modules
Figure 2-4 shows how to connect a regulated power supply for both the Control Module and the RFM.
Jumper JP6 must be closed.
Figure 2-4. Single Power Supply for Both Control and RF Modules
SCBU044 (11-09-21-077) – January 2008
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Installation
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