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2-8 ABM bay grounding schemes
Remote IBN engineering rules
The following engineering rules and requirements apply to remote IBN
grounding schemes as shown in Figure 2-4 on page 2-9:
•
The transmit DS1 cable coming from the DSX-1 cross-connect is
grounded at the DSX-1. The receive DS1 cable of the DSX-1 is grounded
at the AccessNode.
•
In small buildings the single point ground (SPG) may not exist. In such
buildings, the building point ground (BPG) will serve as the SPG.
•
When all the equipment bays (including battery distribution) are in the
same lineup, as in most remote locations, or where the SPG is more than
16 meters (53 ft) away, the individual frame grounds of up to six frames
can be connected to a single 2 AWG conductor ground bus, which is
routed to the SPG.
•
In small installations, an interconnect panel can serve the same purpose
as the main distribution frame (MDF). Any subscriber lines that exit the
building must be protected by gas discharge protectors installed on the
MDF and grounded to the SPG or the BPG.
AccessNode P0887749 Issue 1.0
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