ADS Environmental Services FlowAlert QR 775011 A2 - Manual (Page 101)

Communication 4-33
Wiring diagram of a typical telephone company network interface box
Note: Since the colors inside some boxes vary, this
manual does not reference colored posts for connection.
The installer should connect the wires to the posts in
reference to ring and tip.
7. Use urethane foam to seal the space between the telephone
cable coming from the manhole and the conduit. This prevents
sewer gases from traveling through the conduit from the
manhole into the pedestal. These gases could produce a
potentially explosive environment inside the service pedestal.
8. Re-connect the test plug.
9. Close and secure the cover of the network interface box.