Precision Audio and AV Interface Products

Radio Design Labs

TX-PD8X Switching Power Supply Distributor

  • Distribution of 24 Vdc Power
  • Soft-Start from Switching Supply
  • Outputs may be Activated by an External Switch
  • Outputs may be Activated by an Open-Collector closure to ground
  • Directly Controllable by RDL Remote Controls
  • Up to 8 Power Distribution Points
  • Voltage Presence Indication
  • Reverse Voltage Protection
  • Overview
  • Specifications
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

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.

Applications

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
Indicator:
POWER LED
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
24 Vdc @ 25 mA plus connected loads
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
1.06 lbs.
Tariff code:
8543.70.9860
WEEE Weight
0.825 lbs
Dimesions:
3.17" (8.05 cm) W; 1.76" (4.47 cm) H; 2.06" (5.23 cm) D 3.17 x 1.76 x 2.06 in

Documents:
Format
PDF
CAD Files:
Format
High Res Images:
Format
Declaration of Conformity:
Format
PDF

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TX SERIES

TX Series modules are application-specific modules for the A/V and related industries. Many TX modules offer galvanic transformer isolation. Module functions include signal detection, switching, amplification, format conversion, line driving, mixing, distribution, twisted-pair sending/receiving and more. Each TX is a compact module engineered to provide higher performance and longer life than other industry products. TX modules are solid encapsulated hybrid circuits in durable industrial black plastic/steel or aluminum enclosures with clear bold white lettering for the jacks, terminal block connections, trimming controls and switches.

TX modules are constructed in two widths and heights. All TXs are the same length, have the same mounting hole configuration, and are compatible with all TX series mounting options. A complete range of mounting options is available for systems utilizing multiple TX modules. A single TX module may be mounted right where its function is needed, and are widely used in system designs with OEM or other RDL products. TX SERIES modules are designed and manufactured in the U.S.A.

TX-PD8X TX-PD8X