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2.2 Installation of the Hybrid IP-PBX
44 Installation Manual
2.2.4 Installing/Replacing the Power Supply Unit
Function
Accessories and User-supplied Items
Accessories (included): Screws × 4
User-supplied (not included): Earthing wire, Back-up Battery Cable (KX-A228 for PSU-S and PSU-M, or
KX-A229 for PSU-L)
Notes
• For details about frame earth connection, refer to "2.2.5 Frame Earth Connection".
• For details about backup batteries connection, refer to "2.2.6 Backup Battery Connection".
Safety Instructions
Each PSU complies with Safety Class 1 of IEC60950, EN60950, UL60950,
CAN/CSA-C22.2 No.60950, and AS/NZS60950; therefore a protective earth connection exists between the
mains outlet ground and the PSU case. To ensure the PBX chassis is safely grounded, it is essential that
the PSU case be securely fastened to the PBX chassis with the 4 screws provided with each PSU.
When installing or replacing a PSU, basic safety precautions should always be followed to reduce the risk
of fire, electric shock and injury to persons, including the following:
1. Never install or replace a PSU during a lightning storm.
2. Never install or replace a PSU in wet locations.
PSU Type Lower/Upper Input Voltage Range Current Input Frequency
PSU-S
(for KX-TDA100)
Lower: 100 V AC to 130 V AC 1.4 A
50 Hz or 60 Hz
Upper: 200 V AC to 240 V AC 0.8 A
PSU-M
(for KX-TDA100/200)
Lower: 100 V AC to 130 V AC 2.5 A
Upper: 200 V AC to 240 V AC 1.4 A
PSU-L
(for KX-TDA200)
Lower: 100 V AC to 130 V AC 5.1 A
Upper: 200 V AC to 240 V AC 2.55 A
AC Inlet
Power Switch
AC Inlet
Power Switch
PSU-S PSU-M/PSU-L
Battery Switch
Earth Terminal
Battery Switch
Earth Terminal
Battery Connector
Battery Connector