Panasonic KX-TDA0103 (Original)

Panasonic KX-TDA0103 L-Type Power Supply (PSU-L) original is a vital component for specific Panasonic PBX telephone systems, providing the necessary power to operate the main unit and its connected expansion cards and devices. It’s a “large” type power supply designed for high-capacity configurations.

Key Features and Compatibility

The KX-TDA0103 PSU-L is not a universal power supply; it is specifically compatible with the following Panasonic PBX systems:

• KX-TDA100 and KX-TDA200 series
• KX-TDA600 and its expansion cabinets (KX-TDA620)
• KX-TDE100 and KX-TDE200 series
• KX-TDE600 and its expansion cabinets (KX-TDE620)

The “L” in PSU-L stands for “Large,” indicating it’s a high-capacity power supply. The power output is rated at 279W / 295W and it is designed to handle a significant “load figure,” which is a calculated value based on the total number and type of cards and terminals installed in the system. The system will not function without a compatible and correctly sized power supply.

Function and Installation

The main function of the KX-TDA0103 is to provide stable power to the PBX system’s main unit and any expansion cabinets. It’s a plug-in component that slots into the designated power supply bay on the PBX chassis. For larger configurations, particularly with the KX-TDA600 or KX-TDE600 systems, a power supply is required for both the main cabinet and any expansion cabinets. It’s also worth noting that some systems, when expanding to additional cabinets, may require additional components like a BUS-M and BUS-ME for bus communication between cabinets.