Overview
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 |
| 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 | 8518.29.0000 |
| WEEE Weight
0.825 lbs
|