Vertical SBX IP 320, Installation Manual

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KSU Installation 3
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Chapter 3: KSU Installation
SBX IP 320 Installation Guide
Caution:
• The equipment should be connected to a socket-outlet with a protective ground
connection.
• For ground wire, green-and-yellow insulation is required and the cross-sectional area of
the conductor must be more than UL 1015 AWG#18 (1.0mm)). It is recommended that
the ground wire is shorter than 1m (3.28ft).
• Proper grounding is very important to protect the SBX IP 320 from external noise or to
reduce the risk of electrocution in the event of lightning strike.
• Comply with applicable local regulations.
External Backup Battery Installation
In case of power failure, the external backup batteries automatically maintain uninterrupted
power for the SBX IP 320 System. The external batteries must provide 24V DC; this is generally
accomplished by connecting two 12V batteries in a series arrangement as shown:
Note:
The cable used to connect the battery is supplied with the KSU.
Battery operation is controlled by the PSU. The PSU will provide charging current to the
batteries during normal AC power operation at a maximum of about 200mA. PSU battery
operation will be halted if the AC power is re-connected or if the battery voltage is too low to
maintain full-system operation. The external batteries can maintain System operation as needed
depending on several elements such as battery charge status, condition and capacity of the
batteries, and System configuration (number of Station ports).