Honeywell TotalPlant LCN, System Installation

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LCN System Installation 10-1 9/96
10
UCN TAP INSTALLATION
Section 10
Provides for the installation of UCN taps in cabinets and consoles.
10.1 INSTALLATION IN LCN CABINETS
Install two taps in the LCN cabinet that contains the NIM module(s) for this UCN. See
Figure 10-1. Mount each tap bracket to the two bolts located at the top of the rear side of
the cabinet.
Follow this procedure to mount taps in an LCN cabinet.
Step Action
1 Locate and remove the four bolts at the top, rear side of the cabinet.
There are eight bolts total. Remove the four located nearest the
center of the cabinet.
2 Mount a tap mounting bracket inside the left-hand and right-hand
side of the cabinet and replace the four bolts, tightening them until
the brackets are held firmly in place.
3 Mount the tap to each mounting bracket.
• Left side of the cabinet—Isolated port marker must be located on
right side of the mounting bracket.
Right side of the cabinet—Isolated port marker must be located on
the left side of the mounting bracket.
• Tighten the mounting bolt to only 25 inch pounds—just enough
to hold the tap fixed in place.
Do not crush the body of the tap.
4
Connect a 14 AWG/2.5 mm2 ground wire from each tap directly to the
nearest safety ground.
Do not daisy-chain the connection.
5 Connect a drop cable, 51195153-XXX (XXX is the length in meters),
to each drop cable connection 1.
It is very important to tighten the drop cable connectors to 25 inch
pounds to ensure an error-free UCN system.
6 Continue to connect drop cables to the tap until all are connected.
7 Go to instruction for connecting trunk cable in
UCN Guidelines
(UN12-410), subsection A.3.