Installing Public Old Telephone System (POTS) subscriber line

COMPETENCY BASED LEARNING MATERIAL

Sector:

INFORMATION AND COMNMUNICATION TECHNOLOGY (ICT)

Qualification:

TELECOM OSP AND SUBSCRIBER LINE INSTALLATION
(Copper Cable/POTS and DSL) NC II

Unit of Competency:

Install Public Old Telephone System (POTS) Subscriber Line

Module Title: :

Installing Public Old Telephone System (POTS) Subscriber Line

Developed by:

Roberto S. Macapagal, Training Officer
Network Access Technology

PHILIPPINE LONG DISTANCE TELEPHONE COMPANY
Technical Training Division

Table of contents

Contents page

Glossary of Terms………………………………………………………. 2

Introduction………………………………………………………………. 3

Information Sheet # 1…………………………………………………… 4
LO1.Prepare Distribution Point to Customer Premise Installation

Information Sheet # 2…………………………………………………… 11
LO2.Lay-out and Install Drop Wire and House Attachment

Information Sheet # 3…………………………………………………… 25
LO3.Install Inside Wiring, Telephone Set and Accessories

Information Sheet # 4……………………………………………………. 27
LO4.Wrap-up Job

Operation Sheet……………………………………………………….… 28

Job Sheet………………………………………………………….……… 29

Self – Check……………………………………………………………… 51

Answer Key…………………………………………………………….... 56

Performance Test………………………………………………….…… 57

Glossary of Terms:

Drop wire
Wire suitable for extending an open wire or cable pair from a pole or cable
terminal to a building

Ground Rod
Ground rods can be made from steel with a copper clad surface. These are
driven vertically into the ground and bonded together with bare copper wire.

First class condition
Explanation of the first class condition is a simple logical connection
between protasis and apodosis, simplified as good and nothing to worry
about.

Line wire
Two copper wires (tip and ring) for each telephone line run from a home or
other small building to a local telephone exchange.

Non-metallic construction
Minimizes potential wire abrasion and reduces the possibility of magnetic
interference with communication sign.

OSP(Outside Plant)
Refers to all of the physical cabling and supporting infrastructure (such as
conduit, cabinets, tower or poles), and any associated hardware (such as
repeaters) located between a demarcation point in a switching facility and a
demarcation point in another switching center or customer premises.

Personal protective equipment (PPE)
Refers to protective clothing, helmets, goggles, or other garment or
equipment designed to protect the wearer's body from injury by blunt
impacts, electrical hazards, heat, chemicals, and infection, for job-related
occupational safety and health purposes

Pre-cautions
A measure taken in advance to avert possible evil or to secure good results

Code No. Module Title – Installing Public Old Telephone System Date: Developed Date: Revised Page #
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Program/Course: Telecom OSP and Subscriber Line Installation
Unit of Competency:
Install Public Old Telephone System (POTS) Subscriber
Module Title: Line

Installing Public Old Telephone System (POTS) Subscriber
Line

INTRODUCTION:

This module is designed to enhance the knowledge, skills and attitude of the trainees in
installing Plain Old Telephone System (POTS) Subscriber Line

LEARNING OUTCOMES

Upon completion of this module you should be able to:

1. Learn and prepare needed tools and materials for installation

2. Install drop wire, pole and house attachments, protector, grounding, inside
wire, connecting block and telephone apparatus

3. Learn the Do’s and Don’ts before and after installation

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INFORMATION SHEET # 1

LO1.
Prepare distribution point to customer premises installation

Objective:
Upon completion of this topic participants should be able to identify, describe and
prepare the necessary tools and materials needed in distribution points

LIST OF TOOLS AND MATERIALS
1. SCREWDRIVER

Is used for driving screw available in many sizes, 6”, 12”

2) Tool 216 – B/C – Used for tightening /loosening of terminal covers and Protector

nuts.

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INFORMATION SHEET # 1

2. LONG NOSE PLIERS

Have long slender jaws that are flat on the inside used for such purposes as gripping
small particles reaching places not accessible by hand.
3. DIAGONAL SIDE CUTTER

Are equipped with cutting jaws that are cut at an angle of about 15 degrees used for
wire cutting and in general of any work of this type.

4. Bridle Ring

reduces potential wire abrasion, minimizes magnetic interference to communication
signals, and is easier to install. The shape and flexibility of the improved bridle ring
enable it to be opened wider than existing metallic bridle rings, allowing easier
insertion of wires. Non-metallic construction minimizes potential wire abrasion and
reduces the possibility of magnetic interference with communication sign

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INFORMATION SHEET #1

5. EXTENSION LADDER.

Is on the most important cable splicers equipment made of fiber glass on a strap attached on a
messenger wire on a aerial operations and place on a pole when testing on terminals.
6. Hard Hat

Protect worker from falling object or debris

7. Safety Belt and Strap

Used to support workman while working ladders or any location when it affords
safely to the wearer and at the same time it allows freedom of the arms, hands
and feet in the performance of the required task.

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INFORMATION SHEET #1

Distribution Point or Cable Terminals
Conventional Binding-Post Type Cable Terminals
Marconi Communications WP (formerly Reliable and Reltec)
Marconi terminals can be identified with its light green color metal
housing.

A. Screw-Type Cable Terminals
Schiederwerk Terminal Distribution Box from Alcatel

Schiederwerk terminals can be identified with its off-white color housing.

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INFORMATION SHEET #1

B. Ericsson Terminal Box
Ercisson terminals can be identified with its black color dome-type
housing.

C. Sealed IDC (Insulation Displacement Connection) Cable
Terminals
Raychem DTerminator 1 terminals can be identified with its light
gray color housing for the 10-pair type and anodized
aluminum housing for the 25-pair type.

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D. Raychem DTerminator 2 terminals can be identified with its light
gray color housing for the 10-pair type and anodized aluminum
housing for the 25-pair type.

E. Marconi Insealator terminals can be identified with its light green
color metal housing.

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INFORMATION SHEET # 1
Rules for Hand Tools

1. Use your Personal Protective Equipment

2. Choose the right tool for the job.
3. Make sure the tools you select for the job are in first-class condition
4. Use tools properly

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INFORMATION SHEET # 2

LO2.
Lay out and install drop wire and house attachments

Objective:
Upon completion of this topic participants should be able to identify lay out install
dropwire, house attachments and other materials required in a station installation

LIST OF TOOLS AND MATERIALS:

Dropwires – There are two types of dropwires used in PLDT SIM plant. These are:
Single-Pair #18 AWG Copper-Clad Steel Dropwire – The
conductors of this dropwire is made of steel with copper
cladding. The jacket is made of polyethylene (PE) or
polyvinyl chloride (PVC).

Single-Pair #18 AWG Copper-Clad Steel Dropwire

Single-Pair #22 AWG Copper Fiber-Reinforced Dropwire – The
conductors are made of soft-annealed copper and insulated
with polyethylene (PE). The outer jacket is made of polyvinyl
chloride (PVC).

Conductor

PVC jacket Fiber strength
member

Conductor

Single-Pair #22 AWG Copper Fiber-Reinforced Dropwire

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INFORMATION SHEET # 2

The appropriate dropwire for each type of cable terminals:

TABLE

Cable Terminal Type of Drop Wire

Binding - Post Type Single pair # Single pair # 22 Six (6) Pairsr # 22
1. Marconi WP
Screw Type 18 AWG AWG Copper – AWG Copper –
1. Schiederwerh Terminal
Distribution Box from Alcatel Copper–Clad Fiber Reinforced Fiber Reinforced
2. RXS Terminal Distribution
Box from Siemens Steel Dropwire Dropwire Dropwire
3. Ericsson Terminal Box
Yes Yes Yes

No Yes Yes

No Yes Yes

No Yes Yes

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INFORMATION SHEET # 2

POLE ATTACHMENTS FOR POLE TO POLE and POLE TO BUILDING RUNS

Pole Clamp with Hook Nuts on Wooden Poles

Power utilities may not allow the use of drive hooks on their wooden poles.
Pole clamp with hook nuts can be used as shown in Figure A.

Pole clamp with hook nut installations on concrete pole with dropwires on pole-to-pole
and pole-to-building runs is shown in Figure B.

152.4 mm Hook Nut
(6 inches)

Hook Nut Hook Hook Nut
Nut
Hook nuts for pole-to-building run
Hook nuts for pole-to-pole run
101.6 mm
Figure A (4 inches)

Pole-to-pole
runs

Pole-to-building
runs

Figure B

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INFORMATION SHEET # 2

Placing Additional Pole Clamp with Hook Nuts on Concrete Poles
Additional pole clamps with hook nuts can be installed to accommodate additional
dropwires.

101.6 mm
(4 inches)

152.4 mm
(6 inches)

Placing Pole Clamp with Hook Nuts on Concrete Poles without Existing
Attachments (i.e., messenger wire and pole clamp)

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INFORMATION SHEET # 2

Placing Drive Hooks (“J” Hooks) on Wooden Poles
Drive hook can be used only on wooden poles owned by PLDT. Pole

clamps with hook nuts shall be used on wooden poles not owned by PLDT.

Drive Hook (“J” Hook)

Pole-to-pole Pole-to-
runs building runs

101.6 mm
(4 inches)

Drive hooks for pole-to-building runs
152.4 mm

(6 inches)

Drive hooks for pole-to-pole runs

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INFORMATION SHEET # 2

Capacity of Drive Hooks (“J” Hooks) or Hook Nuts
The maximum number of P-clamps, dropwires, or spans that may be attached to
one drive hook or hook nut is five (5), regardless of direction of spans.

STANDARD DRIVE HOOK INSTALLATION IF LINE WIRE EXCEEDS FOR
MORE THAN FIVE (5)

76.2 mm (1-inch) Approx.
76.2 mm
Minimum (3 inches)
76.2 mm (3 inches)

Drive Hook

Approx.
76.2 mm
(3 inches)

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INFORMATION SHEET # 2

Dropwire Clamps
There are two types of dropwire clamps used in PLDT SIM plant.
These are:

Stainless Steel Dropwire Clamp ― The clamp consists of a stainless steel
shell, wedge, wire bail (or tail wire), and a plastic (polyethylene) shim. Two
sizes are available to accommodate the #18 AWG copper-clad, single-line #22
AWG fiber-reinforced and 6-line #18 AWG fiber-reinforced dropwire. The
clamp can be used in corrosive and non-corrosive areas.

Stainless Steel Shell

Stainless Steel
Wire Bail

Stainless Steel
Wedge

Plastic Shim

Stainless Steel Dropwire Clamp
(P-Clamp)

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INFORMATION SHEET # 2

Plastic Dropwire Clamp ― The clamp consists of a stainless steel wire bail integrally
molded within a plastic wedge clamp. A joining plastic member contains a corresponding
wedge with serrations for gripping the dropwire. The clamps can only accommodate #18
AWG copper-clad and single-line #22 AWG fiber-reinforced dropwires. The clamp can
be used in corrosive and non-corrosive areas.

Part of Bail

Mating Wedge Part of Bail
with Serrations

Mating Plastic Sleeve
Wedge with Dropwire
Serrations

Plastic Sleeve

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INFORMATION SHEET # 2

Maximum Number of Pole-to-Pole (Span) Runs and Pole-to-Building (Drop) Runs

1) Regular Installation ― From the cable terminal or last
communication pole, four (4) pole-to-pole runs and one (1) pole-to-
building run is allowed.

2) Over-Span Installation ― From the cable terminal or last
communication pole, six (6) pole-to-pole runs and one (1) pole-to-
building run or 304.8 meters (1000 feet) is allowed. This, however, will
require clearance from the Exchange Head and over-span installation
cost (OIC) shall be paid for by the subscriber.

To the building

Pole-to-building run (Drop)

Pole-to-pole run
(Span)

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INFORMATION SHEET # 2

USAGE OF SPAN CLAMP

Pole to pole wire run

Pole-to-building wire run
(Drop)

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INFORMATION SHEET # 2

Building Attachment, Station Protector, and Station Protector Grounding

House Bracket ― It is used for the first building attachment where the dropwire clamps
are attached.

Installation Requirements:
For wood surfaces ― House bracket can be mounted directly using wood screws.

For concrete walls ― House bracket can be mounted using plastic anchors and wood
screws.

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INFORMATION SHEET # 2

IMPORTANT NOTES:
a. One shape of drip loop is allowed (down position). The purpose is to prevent
water from going through the C-knob, thus preventing the surface – particularly
wood – from rotting.
b. If there are several dropwires to be installed, use bridle rings.
c. Never use dropwire clamp to dropwire clamp on house bracket to protector

dropwire installation.

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INFORMATION SHEET # 2

STATION PROTECTOR

Fuseless Type – No fused but Gas tube inserted between ground side and

Line side. It has three terminals/ port, one for parallel wire, the other one for
Jacketed wire and the third terminal is for ground connection. Primary use is
to protect Life and Property

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INFORMATION SHEET # 2
GROUND ROD – Driven to the soil to make an electrical contact to earth. To

discharge high voltages / high current.

Mechanical Ground Rod Driver – Use to drive ground rod

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INFORMATION SHEET # 3

LO3.
Install inside wiring, telephone set and accessories

Objective:
Upon completion of this topic participants should be able to identify tools and
materials, and able to perform telephone installation

Gun Heller stapling – use to secure (jacketed ) inside wire on wood surfaces

Inside Wire (Jacketed Wire) – used as a medium to connect the station protector and
connecting block. These wires were typically copper, although aluminum has also been
used, and were carried in pairs

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INFORMATION SHEET # 3

Connecting block – Use to terminate interior wire as final attachment. It provides

point of connection between instrument line cord and interior wire

Telephone Instrument - is defined as “an apparatus for reproducing sound,

especially that of the human voice (speech) at a great distance, by means of electricity,
consisting of transmitting and receiving instruments connected by a line or wire which
conveys the electric current”.

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INFORMATION SHEET # 4

LO4
Wrap up job

Objective:
Upon completion of this topic participants should learn things to do after installing
POTS

Do’s and Don’ts after Installation

1) Be always neat about your appearance and work.

2) Make your work permanent.

3) Be sure all tools are all accounted and excess materials are removed
within the customer’s premises.

4) Do test telephone instrument after the installation for correct dial speed,
transmission, reception and low level noise.

5) Always leave the new customer with the thought that you have done your
work properly.

6) Don’t leave customer’s premises unless customer is familiar with the
operation of the particular telephone set .

7) Don’t drop a hint to the customer that you are hungry or thirsty.
8) Do not tell customers or people who question you about additional lines,

etc. that lots of facilities are available you could be wrong.

9) Don’t tell customer or people who question you about facilities to call
executive of PLDT. As PLDT you represent PLDT. Make note and give it
to your supervisor

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OPERATION SHEET

PURPOSE: • Is to prepare the required tools, materials and equipment
PROCEDURE: prior to installation.

PRECAUTIONS: • To install dropwire, house attachment and telephone set

QUALITY CRITERIA: 1. Arrange tools, materials and equipment needed..
2. Extend ladder to pole.as per manufactures specifications

and techniques.
3. Wear safety gadgets to prevent accident
4. Ascend and descend on pole with care
5. Install Jumper Wire on the assigned cable pair at DP
6. Install pole attachments and parallel wire
7. Install house attachment and dropwire on subs premises
8. Install station protector and grounding.
9. Connect the dropwire and inside wire to the station

protector
10. Lay out and fixed permanently the inside wire
11. Install connecting block and connect the inside wire
12. Install and connect the telephone instrument to the CBK
13.

1. Practice placement or installation of collapsible sign to
prevent accident.

2. For body belt and safety traps, look for the following
defects:
A. Leather cracks, cut tears, broken stitches and
loose rivets.
B. Defective buckles, snap hooks, keepers and d-ring.
Should there be any defect, correct them before
using the equipments.
C. If the defect can be corrected change the
equipment into new ones.

3. Don’t use metal rings and attachments for block wiring in
an inflammable or hot surface of the house or

1. Completeness of tools and materials are necessary
2. Proper usage of tools and materials must be

observed
3. Correct installation of jumper wire at DP, pole

attachments, house attachments, station protector,
grounding, inside wire, CBK and telephone set
4. Customer Satisfaction

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Steps and Standard Practices in Telephone
Installation

I. Types of Distribution Point and Parallel Wire Termination

1) Termination of AWG Copper-Clad Steel Dropwire on Conventional Binding-
Post Terminals

Side
cutter

a) Prepare the dropwire using standard wire slitters or side-cutters,
cut through the center of the outer jacket for 101.6 mm (4 inches).

2.54 cm
(1 inch)

b) Remove at least 25.4 mm (1 inch) of jacket.

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Bridle ring Rubber
grommet

c) Route the dropwire into the bridle rings and into the entry rubber grommet of
the cable terminal housing. Dropwire must pass through at least three bridle
rings – two on either side of the cable terminal and one below before inserting
it in one of the entry rubber grommet of the cable terminal.

#18 AWG Copper-clad
dropwire

d) Form the conductor and then terminate it on the binding-post terminal using a
tool 216 B

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2) Termination of Single Pair #22 AWG Copper Fiber-Reinforced Dropwire on
Conventional Binding-Post Type Cable Terminals

a) Prepare the dropwire using snips or side-cutters, cut through the center of the
outer jacket for about 152.4 to 203.2 mm (6 to 8 inches). (Make sure that the cut

stays in the center of the groove and the conductors are not slitted.)

b) Pull the conductors from the side of the split jacket d cut the required length for
termination. Examine the conductors to make sure all insulation nicks caused by
splitting operation have been removed.

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2.54 cm
(1 inch)

c) Remove at least 25.4 mm (1inch) of conductor insulation.

Bridle ring

d) Route the dropwire into the bridle rings and into the entry plastic grommet of the
cable terminal housing. Dropwire must pass through at least three bridle rings –
two on either side of the cable terminal and one below before inserting it in one of
the entry rubber grommet of the cable terminal.

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#22 AWG
Fiber-reinforced dropwire

e) Tie a knot in one or both slit jacket ends and pull tight. Cut off the excess jacket.
Form the conductor and terminate it on the binding-post terminal using a Tool
216 B wrench

Knot

f) Tie a knot in one or both slit jacket ends and pull tight. Make sure to cut the
excess slit jacket for it may fill space inside the terminal

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3) Termination of Single Pair #22 AWG Copper Fiber-Reinforced Dropwire on
Screw Type Terminals

Terminate the conductors on the screw-type terminals using right size flat screwdriver.

4) Termination of #18 AWG Copper-Clad Steel Dropwire on Sealed-IDC Cable
Terminals

a) Insert directly the conductors on the sealed-IDC ports and terminate without
stripping the insulation using 216 wrench or flat screwdriver.

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b) If conductors cannot be inserted on the entry ports because of thick insulation,
reduce the overall diameter by shaving the insulation but without exposing the
conductor.

c) Insert directly the conductors on the sealed-IDC ports and terminate without
stripping the insulation using 216 wrench or flat screwdriver.

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II. Types of Pole/House Attachments and Customer
Premises Installation Materials

1) Placing Drive Hooks (“J” Hooks) on Wooden Poles

a) Drive hook can be used only on wooden poles owned by PLDT.
Note: Pole clamps with hook nuts shall be used on wooden poles not owned by
PLDT.

Messenger Wire

Pole to Pole wire run Pole to Building wire run
15.24 cm/6 inches 10.16 cm/ 4 inches above
below the messenger the messenger

b) Drive hook must be installed at the left or right center side of the wooden pole. In
a pole to pole wire run, the distance of drive hook to the messenger wire in
between is 15.24 cm or 6 inches below while in a pole to house/building wire run,
the distance of drive hook to the messenger wire in between is 10.16 cm or 4
inches above.

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c) Do not drive the hook directly – with all threads buried on the wooden pole – using
hammer.

C1) The proper way of installing drive hooks on a wooden pole is to drive
at least 25.4 mm (1 inch) using hammer. Then use a lineman’s
wrench to continue driving the drive hook until the end of the hook is
25.4 mm (1 inch) from the pole.

76.2 mm (1-inch) Approx.
76.2 mm
Minimum (3 inches)
76.2 mm (3 inches)

Drive Hook

Approx.
76.2 mm
(3 inches)

If the diameter of a wooden pole is less than 127 mm (5 inches), drill 7.94 mm
(5/16-inch) pilot hole approximately 25.4 mm (1 inch) deep for the drive hook to
avoid splitting the pole. On such poles, provide a vertical clearance of about 76.2
mm (3 inches) between drive hooks installed on opposite sides of the pole.

d) The maximum number of P-clamps, dropwires, or spans that may be attached to
one drive hook or hook nut is five (5), regardless of direction of spans.

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2) Placing Pole Clamp with Hook Nuts on Wooden Poles Not Owned by PLDT

Hook Nut

Power utilities may not allow the use of drive hooks on their wooden poles. Pole clamp
with hook nut installations on concrete pole with dropwires on pole-to-pole and pole-to-
building runs.

101.6 mm
(4 inches)

152.4 mm
(6 inches)

Hook Hook nuts for pole-to-building run
Nut

Hook nuts for pole-to-pole run
152.4 mm
(6 inches)

3) Placing Additional Pole Clamp with Hook Nuts on Concrete Poles

Additional pole clamps with hook nuts can be installed to accommodate additional
dropwires. Pole clamp with hook nut for pole-to-pole runs shall be located 76.2 mm (3
inches) below the existing pole clamp and 76.2 mm (3 inches) above the existing pole
clamp for pole-to-building runs.

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3) Standard Usage of P-Clamp

Wedge

Figure 3.2.6.1.1
Stainless Steel Dropwire Clamp

Shell Shim with rough
side against the

dropwire

Dropwire

When using stainless steel dropwire clamp, the dropwire must be between the shell and
plastic shim. The rough side of the shim must be against the dropwire.

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III. Building Attachment, Station Protector, and Station
Protector Grounding Installation

1) Building/House Attachment

101.6 mm
(4 inches)

to
152.4 mm
(6 inches)

101.6 mm
(4 inches)

to
152.4 mm
(6 inches)

The vertical clearance between the house bracket and C-knob shall be 152.4 mm (6
inches). The house bracket and C-knob can be mounted next to each other. Horizontal
clearance shall be 152.4 mm (6 inches).

IMPORTANT NOTES:
a) One shape of drip loop is allowed (down position). The purpose is to prevent water
from going through the C-knob, thus preventing the surface – particularly wood – from
rotting.

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b) If there are several dropwires to be installed, use bridle rings.
c) Never use dropwire clamp to dropwire clamp on house bracket to protector dropwire
installation.

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2) Station Protector Installation

Protector Location Requirements

a) Protectors must be located 1.83 meters (6 feet) above ground level. These can
be installed at more than 1.83 meters (6 feet) provided that the length of
grounding wire is not more than 6 meters (20 feet) as required

b) On wooden surface, the protector housing can be mounted directly using wood
screws.

c) On concrete walls, holes must be drilled and drive plastic anchors so that screws
can be used to mount the protector housing.

d) Locate where the protector will be accessible for inspection and maintenance and
where it will not expose a PLDT inspector or technician to contact with power
wires or machinery.

e) Protectors must not be closer than 304.8 mm (12 inches) from electrical
equipment.

f) Do not place protector on the fronts of buildings where appearance is a significant
factor or objectionable to customer.

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g) Protectors should be located 152.4 mm (6 inches) form window curtains.
h) Avoid locations where the protector will be subjected to tampering and where the

material might be plied against it.
i) Mount protectors underneath buildings only as a last resort.
j) Protectors installed indoors should be located near the protector ground source so

the ground conductor can be as short as possible.
k) The protector should be installed so that dirt and moisture cannot easily enter

them.

NOTE:

Binding-post and sealed-IDC types station protectors used in PLDT can accommodate
#22 AWG fiber-reinforced and #18 AWG copper-clad steel dropwires.

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3) Protector Grounding

Grounding provides safety from electrical shock and prevents electric arcs that may
cause fires. Proper wiring, bonding, and grounding of both electrical and telephone
facilities minimizes these hazards during lightning activity and contact with power
facilities.

Note:
All protectors must be properly connected to the nearest accessible location of an
approved low-impedance ground electrode during installation activity.

A) Protector and grounding requirements

a1) Ground Wire should be
¾ Insulated
¾ As short as practical - less than 6 meters (20 feet)
¾ Placed in as straight as possible, with no sharp bends. The minimum bend
radius is 304.8 mm (12 inches).
¾ Place the grounding conductor downward and horizontally when possible
(from the protector toward the grounding connection).
¾ The length of the ground wire, from the station protector to the ground
electrode, must not exceed 6 m (20 feet). This includes vertical and
horizontal runs.

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B) Ground Electrode

b1) Ground Rod Installation Procedure

¾ The ground rod can be driven vertically except that, where rock bottom
is encountered, the ground rod shall be driven at an oblique angle not to
exceed 45 degrees from the vertical or shall be buried in a trench that is
at least 762 mm (2½ feet).

¾ If the resistance to ground is 25 ohms or less, clean the surface of the
ground rod with a steel brush or sandpaper to remove rust or dirt. Wipe
clean with cloth.

¾ Terminate the grounding wire on the ground stud provided at the
protector housing.

¾ Terminate the grounding wire to the ground rod using the grounding
connector or clamp.

¾ If the resistance to ground is still more than 25 ohms, drive an additional
rod and bond it to the first rod with a 14 mm² (#6 AWG) insulated soft-
annealed copper wire and appropriate connector or clamp. The
separation between vertical rods and separation between horizontally
buried rods shall be not less than 1.83 meters (6 feet).

IMPORTANT NOTE:

a) Be careful not to damage buried cables or pipes while driving the rod.
b) Locate the ground rod at least 457.2 mm (18 inches) from buildings, poles, and

trees. The top of ground rod should be 76.2 mm (3 inches) below ground.
c) If the soil is paved and the subscriber will not allow cutting or breaking a portion of

the pavement to comply with the required 76.2 mm (3-inch) depth below ground of
the rod’s top, drill a 25.4 mm (1 inch) hole where the 15.875 mm (5/8 inch) ground
rod can be inserted and driven. Three inches of the ground rod should be left
protruding to allow the installation of connector or clamp.

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4) Inside Wiring, Connecting Block, and Telephone Set
A) Inside Wiring

Running the Inside

a) In running inside wire, it should be stapled to the sideboard, baseboard, molding,
up to the connecting block.

b) The best place to staple the jacketed wire is at the flattest possible place where
the wire can still be as inconspicuous as possible.

c) The average inside wire consumption per installation is 3.28 meters (130 inches)

d) Inside wire must be fastened on the wall at every 304.8 mm (12 inches) spacing
intervals.

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Changing Wire Direction

When making a transition between the horizontal baseboard and the vertical run of the
door jamb, window frames or moldings, leave a slight loop in the cable rather than using
the last staple for a sharp right angle bend.

TYPES OF INSIDE WIRING

Chain Wiring - Start from the station protector and run the jacketed wire
through the first connecting block. Then run another jacketed wire from the first
connecting block to the next.

Cluster Wiring - Run a separate jacketed wire from the station protector to each
connecting block in every location where the telephone set will be placed.

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B) Connecting Block and Telephone Set

The connecting block should be located 304.8 mm (1 foot) above floor level and 304.8
mm (1 foot) from the electrical convenience outlet.

In areas prone to flooding, the connecting block can be mounted higher than 304.8 mm
(1 foot) as long as the telephone instrument can be placed on a surface where it is
acceptable to the subscriber or can be conveniently reached.

When mounted on the wall, the RJ-11entry port of the connecting block should face
downward or sideways.

Conventional and sealed connecting blocks can be mounted directly on wooden walls.

Conventional connecting blocks can still be used on concrete walls using plastic anchors
and screws provided a spacer, in the form of dropwire, is used

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For sealed connecting blocks, there is no need to strip the insulation when terminating
the inside wire.

Sealed connecting blocks can be mounted directly on concrete walls using plastic
anchors and screws.

In all cases, the connecting block should be mounted fixed.

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