Ericsson MINI-LINK AMM 1U-1, Руководство по установке

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MINI-LINK High Capacity Indoor Installation Manual
Fusing the Power Supply
Each MMU and fan unit must have its own fuse. We recommend you to use a
DDU (see DC Distribution Unit Installation Instruction ). For other cases follow
the instruction below:
Negative earth Positive earth
Power
supply Power
supply
DC+
DC-
+
-
Fuse
MMU
DC-
DC+
+
-
Fuse
MMU
4057
Figure 60 How to fuse the power supply
23. Fuse the power supply as shown in the figure above.
Recommended fuses:
•
5 A minimum 100 V of type F with ceramic body and high breaking capacity
according to UL/CSA 248-14.
• 4 A minimum 100 V of type F with ceramic body and high breaking capacity
according to IEC 127.
Power Supply
Input DC Voltage: 24 – 60 V, nominal (20.4 – 72.0 V including tolerance).
See marking on the MMU for information.
Caution!
The equipment must be supplied by a double/reinforced SELV source. A circuit
breaker with a rating of maximum 16 A must be incorporated into the circuit.
50
EN/LZT 712 0156 R1A 2002-10-01