1152A1 Mid-Span Power Distribution Unit
Issue 3 January 2008 119
The 1152A1 Mid-Span Power Distribution Unit (PDU) is an Ethernet power supply that provides
power to up to 24 46xx-series IP telephones or wireless LAN (WLAN) access points. This unit is
used with a 10/100BaseTx standard Ethernet network over a standard TIA/EIA-568 Category 5,
6 or 6e cabling plant. The 1152A1 meets the current requirements of the IEEE802.3af standard
for resistive detection.
The 1152A1 PDU complies with the Underwriters Laboratories Inc. (UL) standard UL 1950,
second edition.
For safety instructions, see Important safety instructions on page119. For installation
instructions, see Connecting the cables on page 121.
Important safety instructions
Please read the following helpful tips. Retain these tips for later use.
When using this switch, the following safety precautions should always be followed to reduce
the risk of fire, electric shock, and injury to persons.
●Read and understand all instructions.
●Follow all warnings and instructions marked on this switch.
●This product can be hazardous if immersed in water. To avoid the possibility of electrical
shock, do not use it near water.
●The 1152A1 PDU contains components sensitive to electrostatic discharge. Do not touch
the circuit boards unless instructed to do so.
●This product should be operated only from the type of AC (and optional DC) power source
indicated on the label. If you are not sure of the type of AC power being provided, contact
a qualified service person.
●Do not allow anything to rest on the power cord. Do not locate this product where the cord
will be abused by persons walking on it.
Complies UL 1950
Approved CSA C22.2 No.950 Std.
Approved CE Regulatory
Compliance
Approved EN 60950
Approved TUV EN 60950