ANTENNA MONITORING SYSTEM (AMS) USER MANUAL
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Page 19
2.4.2 GROUNDING CONNECTION
Ground Connection
To ensure safe operation of the product, a ground (earth) connection is required. For single phase AC power
source, the product must be grounded by connecting the “earth wire” of the power cord to the ground terminal
of the AC supply. For operating this product with DC power systems (such as DC output battery backup units,
or rectifiers), the product should not be connected to power systems that switch open the return lead because
the return lead could function as the ground (earth) connection for the equipment.
Protective Ground Connection
The enclosure must be grounded securely by connecting a copper wire (CSA 16mm
2
) to the grounding terminal
on the equipment/rack, and the other end to a protective ground (i.e., building earth point). An internationally
acceptable color code of the ground connection wire is green/yellow.
Such a ground connection implements the “Protective Ground Connection” and must be connected to the
equipment at the designated ground point. In general, do not connect the supply before establishing an
adequate ground (earth) connection.
Construct the ground wire and use appropriate crimp connectors where necessary. Locate and connect the
equipment grounding terminal to a protective ground (i.e., building earth point).
2.4.3 -48VDC POWER CABLE CONNECTION
-48VDC power cable connection is as follows:
DC -48V port
Connects to -48VDC power source
Table 2: Power Cable Labeling
Wire Color
Connection
Blue
-48V
Red (Brown)
+48V
2.4.4 RF CABLE CONNECTION
RF cable connection is as follows:
AMS RF OUT port
Connects to the feeder cable from service antennas.
AMS RF IN port
Connects to the feeder cable from BDA downlink (Comba BDA MT port)
2.4.5 ETHERNET CONNECTION
Establish an Ethernet connection using the ‘LAN’ port located on the panel.
