REKA BENTUK PEMASANGAN

SISTEM TELEFON

SKOP REKA BENTUK

REKA

BENTUK

LUARAN

JENIS

SISTEM

REKA

BENTUK

DALAMAN

KEPERLUAN

RUANG

SISTEM

TELEFON

KEPERLUAN RUANG DALAMAN

TELEFON

• BILIK SDF

• BILIK MDF

• BILIK PABX/KEYPHONE

• BILIK OPERATOR

• BILIK RISER

Subscriber Distribution Frame

(SDF) ROOM

• The SDF is the final termination point of the TM network and the beginning of the subscriber network

• consist of:

1. Vertical frames or vertical c/w brackets/hooks

2. Termination blocks

3. Earth bar

4. Lightning arrestors

ROOM REQUIREMENT

• Entry ducts from outside the building shall be designed to run parallel with the length of the longer side of the SDF room. Any turning or bending shall be avoided.

• SDF room must be flood free either on ground or 1st floor with a 150mm kerb across doorway (basement not allowed).

• Must be dust free - avoiding louvered doors and windows. :

• Normally equipped with Exhaust Fan, A/C if located in the basement / lower ground floor

• Must be fitted with suitable lighting

• At least 2 no. of 13A power points.

• Sprinkler system not allowed.

• Must be provided with one lockable cabinet, table and chair for TM staff use

SDF ROOM

RISER ROOM

• The cable risers stretch from the SDF room to the full height of the building and have access to distribution conduits on each floor of the building.

• For buildings with large floor areas (longer than 90m) in each storey, more than one cable riser at strategic points may be planned on every floor.

• This riser hole shall be sealed up with fire resistant barriers.It is important that no other services be allowed in this enclosure.

• Enclosures shall have fire resistant locked doors of min 2.1m height with the words ‘TELECOM RISER’ displayed on it One set of keys of the door shall be kept by owner for safe custody and the other by TM.

RISER CLOSET

RISER ROOM

CROSS SECTION OF RISER

CLOSET

KOMPONEN REKA BENTUK

LUARAN

R2A

JB30/

JRC7

PIT

JC9(M)/

JC9/C(M)

LURANG

TELEFON

LALUAN KABEL MASUK KE

DALAM BANGUNAN

REKA BENTUK DALAMAN

DESIGN

CABLING

DIAGRAM

TM’S

REQUIREMENT

CATEGORY

OF

BUILDING

INTERNAL

DESIGN

Clasification of building

• Based on

• Number of telephone station required

• Size of incoming underground cables to

the building

• Total floor area

Categorized of building

• Category 1

• Category 2

• Category 3

Category 1

• Category 1

• >5 storeys and any building with total floor space exceeds 650 m2

• Size of underground cable exceeds 50 pairs

• Jointing chamber usually required outside the building to facilitate linkage of entry duct to the building

• Ie; jc9 for cabless <400 pr

• R2A for larger size of cable

Category 2

• 5 storeys and below any building with total

floor space less than 650 m2

• Size of underground cable less than 50

pairs

Category 3 building

• Terrace or link house for residential

purpose only

• Bungalow house for residential purpose

only

INTERNAL DESIGN

How to start telephone design

• Planning

1. Site visit for verification client’s property

2. Any existing telecommunication infrastructure

3. The nearest telecommunication manhole

4. Application to service provider i.e.; TM c/w survey plan and target date of completion.

5. Obtain client’s requirement.

• Design

1. Liaise for telecommunitaion space/room

i.e., mdf room,sdf room, telefony room

riser etc.

2. Plan for external infrastructure.

3. Design internal infrastructure i.e. under

floor trunking system, internal cabling

PABX

• Determine telephony equipment (key

phone/PABX) and size

• Design schematic diagram

• Send 3 sets to TM

site plan, location plan, key plan

internal infrastructure (layout plan of under floor

ducting, telephone rooms)

schematic diagram

external infrastructure layout

Typical schematic diagram

Inco

min

g ca

ble

Out

goin

g ca

ble

PABX

10 Prs ‘DEL1’ DP

(Line 1 – 10)

30 Prs

‘DEL’

DP

30 Prs

‘EXT’

DP

10 Prs ‘DEL2’ DP

(Line 11 – 20)

10 Prs ‘DEL3’ DP

(Line 21 – 30)

‘EXT’

NUMBER

10 Prs ‘EXT3’ DP

(Line 21 – 30)

10 Prs ‘EXT2’ DP

(Line 11 – 20)

10 Prs ‘EXT1’ DP

(Line 1 – 10)

100/0.63mm PEUTFF

SDF

roomFrom

TM

10pr grey cable

TERIMA KASIH