Installation Instructions

Installation requirements
DN00283911 © Nokia Corporation 31 (43)
Issue 2 DRAFT 1 - en Nokia Proprietary and Confidential
Note
WARNING
• The routing of the ground cable must be as direct as possible. Unnecessary
loops should be avoided.
A grounding cable can be ordered from Nokia.
4.6 Mains power
Follow the national legislation when working with the power supply. It is
advisable that the socket used for the MU and RUs are permanently wired in
accordance with current local and national wiring standards.
All ground connections must be secure and non-removable.
All power cabling must meet the requirements of the appropriate national
standard.
4.6.1 Main Unit
The MU has two power supply options: 220 VAC and 110 VAC. The permitted
voltage fluctuation for the different options is presented in Table .
Table 4. Permitted operating voltage fluctuation
It is recommended that the AC mains be protected with a transient overvoltage
protector circuit breaker. This protection is not included in the MU.
4.6.2 Remote Unit
The RU has the following power supply options:
• 110 VAC
Nominal operating
voltage
Permitted operating
voltage fluctuation
220 VAC
±20%
110 VAC
±20%