COBHAM MBF-40 Americas, Руководство пользователя

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MBF-40 SMR900 PS REPEATER
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 31-May-18 www.cobham.com/wireless
Doc. No. 00141UM Rev. 1.0 Page | 9
2.2.3.2 115 VAC Power Source Cable Requirements
Cable requirements:
• Cable should be NRTL (safety) approved with a minimum of 14 AWG or 2.5 mm² per conductor, and
maximum of 12 AWG or 4 mm² per conductor.
• For safety, the GND cable must be 10 mm longer than the phase and neutral cables.
2.2.3.3 -48 V Power Source Connection Requirements
NOTE: The -48 VDC version of the power supply is designed to turn off if the supply voltage falls below -36 V (
±
1V), not
to drain the feeding battery. It will turn on again as the supply voltage reaches -43 V ( ± 1V).
-48 V 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 48 VDC +25%/-15%. The maximum input current is 8 A.
Recommended cable areas for 48 VDC
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
2.2.4 F/O Cable Installation Guidelines
This product is equipped with Class 1 Lasers, as per definition in EN 60825-1.
CAUTION!
Un-terminated optical receptacles may emit laser radiation.
Do not stare into beam or view with optical instruments.
WARNINGS!
o
Maximum input power should not exceed (zero) 0 dBm
o
Clean the fibre connectors (receptacles and cables) before connecting. See APPENDIX B – F/O
CLEANING PROCEDURE for details on F/O cleaning procedures.
Note the following:
• This procedure requires opening the repeater.
•
Use angled APC connectors at 8 deg angle over the complete link between the Repeater and OMU
• Use APC type ODF connections
• Required Fibre cable: single mode 9/125
•
Cable length — determined by the Remote installation plan. When calculating the cable length, take into
account excess cable slack so as not to limit the insertion paths.