Technical Considerations
Technical Considerations
An Enterasys Networks Mid‐Span Power Hub may be placed on a shelf or mounted in a standard 48.26‐centimeter (19‐inch) rack.
Before you mount the unit to a fixed location, consider the following:
•Determine optimal placement.
•Collect and document network information as required.
•Ensure that the length of cable from the Ethernet network source to the powered device does not exceed 100 meters.
Note: The units are not repeaters and do not amplify the Ethernet data signal.
Caution: Observe the following requirements when mounting the Enterasys Networks
•The unit is intended for installation in a wiring closet.
•Connect the unit to a grounding type AC outlet (100‐240 VAC), using the standard power cord shipped with the unit, or a user‐supplied UPS (uniterruptible power supply).
•Allow for easy access to disconnect the unit from the AC outlet if necessary.
•Do not cover the unit or block the airflow with any other objects. Keep the unit away from excessive heat, humidity, vibration, and dust.
•Ensure that installation conforms to local regulations.
Configuration for a Mid-Span Power Hub
Figure 2‐3 shows a typical configuration for an Enterasys Networks Mid‐Span Power Hub (BL‐69524ENT shown) operating with 802.3af appliances. To ensure EMC compliance and compliance with Class A requirements, use Category 5, 5e, or 6 shielded twisted pair straight‐through cables.
