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P/N 92219601 • Rev D• 7/2/2008
Warranty: If this unit fails during the warranty period, contact tii customer service to authorize return. Unit may be returned prepaid.
141 Rodeo Drive
Edgewood, NY 11717
Toll Free 888.444.4720
www.tiinettech.com
Model 355 & 356 Series
Station Protector Modules
Installation Note
Description
1. The TII 355 and TII 356 Series Station
Protector modules may be installed in a wide
variety of station protector and network
interface housings.
2. The TII 355 and TII 356 Series are self
clearing and generally should require no
maintenance.
3. It is possible, however, that successive
operations or the cumulative effect of heat
may cause failure of the gas tube. In case of
trouble, the entire protector module should be
replaced with a new unit.
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.
5. These modules shall be installed in NID
enclosures evaluated to the requirement of
UL497.
Installation
1. Loosen the nut on the appropriate ground stud
and slide the ground clip of the surge protector
module under the nut and washer and tighten
down the nut.
2. Ground the module using a No. 6 AWG solid
copper insulated ground wire. Connect one
end of the ground conductor to the appropriate
ground stud and the other end to an
appropriate ground source (Figure 2).
3. Terminate the Telco Side cable (i.e., aerial or
buried drop) in between the bottom set of
washers and bottom nut of the appropriate
stud (one conductor to Tip and one to Ring).
Tighten down the nut (Figure 1).
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). Tighten down the nut (Figure 1).
Telco Side Cable
Terminate Between
Washers
Ground Clip
Customer Side
Cable
Terminate Between
Washers
Figure 1
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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.
6. When more than one cable is placed under a
nut, use washers between the wires.
7. Use caution when terminating small gauge
Customer Side cable on the protector module
terminals, as the wires may catch in the
threads of the terminal and be cut or broken
when nuts are tightened.
8. Check all nuts to make sure they are tight.
Precaution
1. When clearing trouble on a line that contains
gas tube protector modules, and when the test
board has indicated that there may still be a
power contact, inspect the non-cable portion
of the line from the ground for any power
contacts or evidence of damage from power
contacts.
2. Special care should be taken in making the
inspections where the line runs through trees
or where visibility is limited.
3. If a power contact is found, notify the proper
authority so it may be corrected.
4. Do not work on the line until the power contact
has been cleared.
5. If no contact is found but the test board still
have indications of a power contact, wear
insulating gloves while working with the test
board to clear the line.
Ground
Conductor
Telco Side Cable
Typical Installation
Station Protector Housing
(Cover Removed)
Stud
Tip
Ground
Conducto
Figure 2
Line 1
Protector
Line 2
Protector
Ring
Conductor
Customer Side Cable
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