EH-5500FD Installation Manual
Page 23
2.8
Connecting the Cables
The following Figure shows the ODU interfaces. There are two interfaces available:
Eth1 – Electrical 100/1000 RJ45 for PoE In and out of band management
Eth2 – SFP+ slot for 10G
1. Electrical Ground (GND)
4. Ethernet port #1 RJ45 (PoE In)
2. DC In
5. Ethernet port #2 10G Fiber/SFP+
3. DVM Probe Interface (AUX), Reset Button
Figure 2-9 EtherHaul Connection Panel Details
2.8.1
DC Power Supply Notes
The DC power input range of the ODU is 36 - 57 VDC.
The DC supply should be limited to two Ampere to avoid surges and
possibledamage to the ODU. For that, use limited power supply or circuit break
er (fast-blow fuse). The circuit-breaker is the disconnecting device, and should
be readily accessible.
When connecting the ODU to a MAINS DC distribution system, use a two ampere
circuit breaker to enable the central DC system to isolate the ODU in an
emergency case.
Use one poly circuit breaker and should connect it on the live voltage: (+) or ( -).
The other poly should be grounded.
Connect the circuit breaker to the (+) or (-) live voltage.
The DC input is floating, so either (+) or (-) can be connected to the GND on the
power supply side. For the sake of consistency with other systems, Siklu
recommends that you connect the (+) to the GND.
