P/N 92216301 • Rev D• 8/21/2008
Warranty: If this unit fails during the warranty period, contact tii customer service to authorize return. Unit may be returned prepaid.
Model 344/345/348/349
Station Protectors
Installation Note
Description
TABLE A
Ground Wire Capacity
No. of Primary Protectors
Two Pair Wiring Scheme
Station Protector Housing
Ground Stud / Binding Post
Installation (Precautions)
1. The tii Total Failsafe® TFS® Station
Protectors are the basic components of tii
Station Protectors and consist of a tii Surge
Protector Module in a 160G BIG MAC® Utility
Enclosure, with molded in-ground stud.
2. A large grommet is located in the center of the
base lip to allow Telco cable, customer cable
and grounding conductor penetration (See
Figure 1).
3. The number of protectors that can be
connected to various size copper-insulated
ground wires are listed in Table A below.
1. Mount the station protector so as to minimize
the possibility of dirt or moisture getting into
the protector.
2. Station protectors mounted side-by-side or
end-to-end should be placed so covers can be
easily removed.
3. Where protection for multiple services is
required, it is recommended that a protected
building terminal in an interior terminal box be
installed in place of station protectors.
4. Mount the station protector vertically on a flat
surface using appropriate hardware (the
length of the mounting screws should allow for
1/8” of length within the protector.
5. The mounting holes are covered with a thin
film of plastic, easily punched out, to maintain
the environmental integrity of the protector
4. National Electric Code Requirement. The
protector shall be installed per National
Electric Code ANSI/NFPA 70, Article 800,
Section C, and shall meet all applicable local
safety codes.
(See Figure 2).
Features
Figure 1
Figure 2
Wiring
1. Insert the grounding conductor, the customer
side cable and the Telco side cable through
the grommet in the base of the protector.
2. Terminate one end of the grounding conductor
(No. 6 AWG) on the ground stud / binding post
and the other end to an appropriate ground
source (See Figure 3).
3. Terminate the Telco Side cable in between the
bottom set of washer and bottom nut of the
appropriate stud (one conductor to Tip and
one to Ring) and tighten down (See Figure 3).
4. Terminate the Customer Side cable under the
top set of washers and the top nut of the
appropriate stud (one conductor to Tip and
one to Ring) and tighten down. (See Figure 3).
5. Loop back unused station wire conductors and
coil around the station wire jacket or store in
such a manner as to prevent them from
coming in contact with protector terminals or
bare wires.
Figure 3