PURE M3700 Installationshandbuch Seite 109

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3.2.9 Installing/Replacing the Power Supply Unit
Function
PSU Type Lower/Upper Input Voltage Range Current Input Frequency
PSU-M
Lower: 100 V AC to 130 V AC 2.5 A
*1
50 Hz or 60 Hz
Upper: 200 V AC to 240 V AC 1.4 A
PSU-L
Lower: 100 V AC to 130 V AC 5.1 A
*1
Upper: 200 V AC to 240 V AC 2.55 A
*1
When you are installing multiple shelves, make sure that the total ampere rating of all the devices plugged into the AC outlet does
not exceed the ampere rating of either the AC outlet or the breaker.
AC Inlet
Power Switch
PSU-M/PSU-L
Ground Terminal
Accessories and User-supplied Items
Accessories (included): Screws ´ 4, AC power cord ´ 1
User-supplied (not included): Grounding wire
WARNING
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.
Never install or replace a PSU during a lightning storm.
Never install or replace a PSU in wet locations.
Never install or replace a PSU unless at least 20 s has elapsed after the AC supply is
disconnected.
Notice
When installing or replacing a PSU, read Important Safety Instructions and Important Information in
this manual carefully, and always follow these guidelines to reduce the risk of fire, electric shock and injury.
Note
For details about frame ground connection, refer to "3.2.10 Frame Ground Connection".
Document Version 2009-12 Installation Manual 109
3.2.9 Installing/Replacing the Power Supply Unit
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