Tii 317 User Manual

141 Rodeo Drive tii 317 Series
Edgewood NY11717 Surge Arrester
Toll Free 888.844.4720
www.tiinettech.com Rev B 03/08

INSTALLATION NOTE

TII 317

Telco/Customer
Figure 1

TII 317

Telco/Customer
Ground

1. GENERAL

1.1 The TII 317 Series Surge arrester modules contain
a three electrode gas tube engineered to protect
equipment from lightning and induced surges.

1.2 Recommended for use on control circuits, buried

cable and other specialized communication links.
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.

2. WARRANTY

2.1 See TII Warranty. If this unit fails during the

warranty period, the factory should be requested to
authorize return. Return the unit prepaid when
authorization is received. Units that fail due to abuse or
normal wear should be discarded.

3. INSTALLATION

3.1 Remove the TII 317 and inspect it for damage. If
damaged, obtain another unit.

3.2 Three spade tip leads facilitate connection to
binding post terminals, using up to #10 screws.

3.3 The two outer leads are connected across the two­wire circuit being protected, and the center lead to
ground. See Figure 1 for connections.

3.4 Loosen the nut on the appropriate ground stud and slide
the ground spade lug of the surge protector module
under the nut and washer and tighten down the nut.

3.5 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.

3.6 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.

4. PRECAUTION

4.1 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.

4.2 Special care should be taken in making the inspections
where the line runs through trees or where visibility is
limited.

4.3 If a power contact is found, notify the proper authority so
it may be corrected.

4.4 Do not work on the line until the power contact has been
cleared.

4.5 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.

TII P/N 92222901