User Manual
Table Of Contents
- MBF, Multi Band Repeater
- Contact Information
- About This Manual
- For whom it is Intended
- Notice
- Confidential - Authorized Customer Use
- Disclaimer of Liability
- Warrantee
- Table of Contents
- 1 Introduction
- 2 Installation
- 3 Commissioning Advice
- 4 Setup
- 5 Troubleshooting
- 6 Maintenance
- 7 Modem Communication
- 8 Specifications
AXELL MBF MULI-BAND FIBRE REPEATER
PRODUCT DESCRIPTION AND USER’S MANUAL
16 © Axell Wireless Ltd
2.7.3 -48V Power Source Connection
Note:The -48VDC version of the power supply is designed to turn off if the supply voltage falls below
-36V (
±
1V), not to drain the feeding battery. It will turn on again as the supply voltage reaches -43V
(
±
1V).
-48V power supply requirements
The 48VDC power supply must comply with SELV requirements, as defined in EN60950, which
implies double isolation. The output power needs to be 48VDC +25%/-15%. The maximum input
current is 8A.
Connect the power cable to the plinth with:
• Negative (-48V) to the uppermost connection
• Positive (0V) to the lower connection.
• Do NOT connect the middle connection.
Recommended cable areas for 48VDC
Distance Cable Area
0 - 10 meters between repeater and
power supply
2,5 mm²
10 – 50 meters between repeater and
power supply
4 mm²
Over 50 meters between repeater and
power supply
Recommendation is to reconfigure the
installation, or to make special
arrangements to increase cable area
Connection Plinth
Negative
Positive
-48V
0V
Strain Relief Fitting