RDL TX-PD8X Data Sheet

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SERIES

Model TX-PD8X
Switching Power Supply Distributor

 Distribution of 24 Vdc Power
 Soft-Start from Switching Supply
 Directly Controllable by RDL Remote Controls
 Up to 8 Power Distribution Points
 Voltage Presence Indication
 Reverse Voltage Protection
 Outputs may be Activated by an External Switch
 Outputs may be Activated by an Open-Collector closure to ground
 8 DC Power Cables Included

APPLICATION: The TX-PD8X is the ideal choice where power distribution from a current-limited switching power
supply is needed. It is suitable for powering up to eight modules from a single power supply. The current limiting
circuitry in many switching power supplies will cause the supply to shut down upon power-up when a high current
capacitive load is connected. Upon application of power, the TX-PD8X ramps the voltage up, charging any load
capacitance as quickly as possible, then switching full voltage to the load. If reverse polarity is connected to the
input, the TX-PD8X disconnects the load until the condition is corrected.

In system design, various modules are frequently operated from a single power supply. Good engineering practice
requires that the power wiring to each module originate at the power supply output. The TX-PD8X serves as the
power source for each of eight modules. The TX-PD8X normally provides power to ground-referenced modules. A
front-panel switch permits the installer to enable external control. When the ON terminal is connected to ground, the
TX-PD8X outputs are active. External control is possible using RDL detection or control modules, open-collector
outputs from OEM equipment or controllers, or using a D-RT2 RDL remote wall control. The front-panel blue LED
remains illuminated when the outputs are active.

RDL  659 N. 6th St.  Prescott, AZ., USA 86301  [phone]  FAX [phone]  www.rdlnet.com

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TX

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SERIES

Model TX- TX-PD8X
Switching Power Supply Distributor

Installation/Operation

EN55103-1 E1-E5; EN55103-2 E1-E4

Typical Performance reflects product at publication time
exclusive of EMC data, if any, supplied with product.
Specifications are subject to change without notice.

TYPICAL PERFORMANCE

Input/Output Voltage: 24 Vdc @ 2 A (Intended for use with current limited switching supply)
Outputs (8) : Total load current must not exceed 2 A (8 DC Power Cables Included)
Indicator: POWER LED
Power Requirement: 24 Vdc @ 25 mA plus connected loads
Ambient Operating Environment: 0° C to 50° C

U.S.A. [phone], [phone]; Fax: [phone]

891-7130

Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287

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