I P - D S U U s e r ’ s M a n u a l
02/02/08
5
Important Safety Instructions
The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the
product.
When installing, operating, or maintaining this equipment, basic safety precautions should always be followed to reduce
the risk of fire, electric shock, and injury to persons, including the following:
Read and understand all instructions.
Follow all warnings and instructions marked on this product.
For information on proper mounting instructions, consult the User’s Manual provided with this product.
The telecommunications interface should not leave the building premises unless connected to telecommunication
devices providing primary and secondary protection.
This product should only be operated from the type of power source indicated in the User’s Manual.
This unit is intended to be powered from either –48 V DC or AC voltage sources. See User’s Manual before
connecting to the power source.
The –48 V DC input terminals are only provided for installations in Restricted Access Areas locations.
Do not use this product near water, for example, in a wet basement.
Never touch uninsulated wiring or terminals carrying direct current or leave this wiring exposed. Protect and tape
wiring and terminals to avoid risk of fire, electric shock, and injury to service personnel.
To reduce the risk of electrical shock, do not disassemble this product. Service should be performed by trained
personnel only. Opening or removing covers and/or circuit boards may expose you to dangerous voltages or other
risks. Incorrect re-assembly can cause electric shock when the unit is subsequently used.
For a unit intended to be powered from –48 V DC voltage sources, read and understand the following:
This equipment must be provided with a readily accessible disconnect device as part of the building installation.
Ensure that there is no exposed wire when the input power cables are connected to the unit.
Installation must include an independent frame ground drop to building ground. Refer to User’s Manual.
This symbol is marked on the IP-DSU, adjacent to the ground (earth) area
for the connection of the ground (earth) conductor.
This Equipment is to be Installed Only in Restricted Access Areas on Business and Customer Premises Applications
in Accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical Code, ANSI/NFPA No. 70. Other
Installations Exempt from the Enforcement of the National Electrical Code May Be Engineered According to the
Accepted Practices of the Local Telecommunications Utility.
For a unit equipped with an AC Wall Plug-In Unit, read and understand the following:
Use only the K’TRON, Model KA-52A Wall Plug-In Unit shipped with this product.
Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.
Do not staple or otherwise attach the power supply cord to the building surfaces.
Do not overload wall outlets and extension cords as this can result in the risk of fire or electric shock.
The socket outlet shall be installed near the equipment and shall be readily accessible.
The Wall Plug-In unit may be equipped with a three-wire grounding type plug, a plug having a third (grounding) pin.
This plug is intended to fit only into a grounding type power outlet. Do not defeat the safety purpose of the grounding
type plug.
Do not allow anything to rest on the power cord. Do not locate this product where the cord may be abused by
persons walking on it.
Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following
conditions:
a) When the powers supply cord or plug is damaged or frayed.
b) If liquid has been spilled into the product.
c)
If the product has been exposed to rain or water.
d) If the product does not operate normally by following the operating instructions. Adjust only those controls that are
covered by the operating instructions because improper adjustment of other controls may result in damage and will
often require extensive work by qualified technician to restore the product to normal operation.
e) If the product has been dropped or the cabinet has been damaged.
f)
If the product exhibits a distinct change in performance.
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