RDL TX-PD8X Switching Power Supply Distributor

Switching Power Supply Distributor

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.

Features:

• 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

Specifications:

• 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
• Power Requirement: 24 Vdc @ 25 mA plus connected loads
• Ambient Operating Environment: 0 C to 50 C
• Package Dimensions: 2 X 2 X 4 in.; 5.08 X 5.08 X 10.16 cm.
• Shipping Weight: 0.186 lbs.