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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, AC power cord × 1
User-supplied (not included): Grounding wire
Note
For details about frame ground connection, refer to "2.2.5 Frame Ground 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 ground 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.
3. Never install or replace a PSU unless at least 20 s has elapsed after the AC supply is disconnected.
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
Ground Terminal
Ground Terminal