
724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
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ACX1MT
Safety Instructions
Safety Instructions
To ensure reliable and safe long-term operation of your DKM Modular Extender, please note the following guidelines:
Installation
• Only use in dry, indoor environments.
• The DKM Modular Extender and the power supply units can get warm. Do not situate them in an enclosed space without any
airflow.
• Do not place the power supply directly on top of the device.
• Do not obscure ventilation holes.
• Only use power supplies originally supplied with the product or manufacturer-approved replacements. Do not use a power
supply if it appears to be defective or has a damaged case.
• Connect all power supplies to grounded outlets. In each case, make sure that the ground connection is maintained from the
outlet socket through to the power supply's AC power input.
• Do not connect the link interface to any other equipment, particularly network or telecommunications equipment.
• Take any required ESD precautions.
Repair
• Do not attempt to open or repair a power supply unit.
• Do not attempt to open or repair the DKM Modular Extender. There are no user-serviceable parts inside.
• If there is a fault, contact Black Box Technical Support at 724-746-5500 or info@blackbox.com.