6. Installing the drop cable and LPU
PTP 500 Installation Guide
phn-2508_005v000 (Mar 2013)
Page 25
9
Prepare the metal grounding point of the supporting structure to provide a good
electrical contact with the grounding cable clamp. Remove paint, grease or dirt,
if present. Apply anti-oxidant compound liberally between the two metals.
10
Clamp the bottom lug of the grounding cable to the supporting structure using
site approved methods.
Use a two-hole lug secured with fasteners in both holes. This provides better
protection than a single-hole lug.
Installing and grounding at building entry
To run the drop cable into the building, proceed as follows:
1
Make an entry point into the building and run the main drop cable into the
building.
2
Ground the drop cable to the external ground bar outside the building entry
point, as described in
Making a drop cable ground point
on page
23
.
3
Install the LPU inside the building, not more than 600 mm (24 in) from the
building entry point. Mount the LPU with cable glands facing downwards.
4
Ground the LPU to the master ground bar.
5
Cut any surplus length from the bottom end of the main drop cable and fit an
RJ45 connector and gland, as described in
Assembling an RJ45 connector and
gland
on page
19
.
6
Connect the main drop cable to the LPU, as described in
Connecting an RJ45 and
gland to an ODU or LPU
on page
21
.
7
Connect the LPU-PIDU drop cable to the other port of the LPU, as described in
Connecting an RJ45 and gland to an ODU or LPU
on page
21
.
8
Run the LPU-PIDU drop cable to the location of the PIDU (or PTP-SYNC).
