The document outlines the Computer Systems Servicing NC II qualification, detailing competencies related to installing, configuring, maintaining, and repairing computer systems and networks. It emphasizes occupational health and safety procedures that must be followed while working with computer systems, such as avoiding hazards and using personal protective equipment. It also explains the types of Ethernet cables used in networking, including straight-through and crossover cables, along with their applications.

1. SENIOR HIGH SCHOOL
JOINT DELIVERY VOUCHER PROGRAM
Jerome I. Surio
CSS NC II Trainor

2.  The COMPUTER SYSTEMS SERVICING NC II
Qualification consists of competencies that
must possess to enable to install and
configure computers systems, set-up computer
networks and servers and to maintain and
repair computer systems and networks.
WHAT IS CSS?

3. BASIC COMPETENCIES
 COMMON COMPETENCIES
 CORE COMPETENCIES
THE UNITS OF COMPETENCY COMPRISING
THIS QUALIFICATION INCLUDE THE
FOLLOWING:

4. Participate in workplace communication
Work in a team environment
Practice career professionalism
Practice occupational health and
safety
procedures
BASIC COMPETENCIES

5. Apply quality standards
Perform computer operations
Perform mensuration and calculation
Prepare and interpret technical drawing
Use hand tools
Terminate and connect electrical wiring
and electronic circuits
Test electronic components
COMMON COMPETENCIES

6. Install and configure computer systems
Set-up Computer Networks
Set-up Computer Servers
Maintain and Repair Computer Systems and
Networks
CORE COMPETENCIES

7. Assemble computer hardware
Prepare installer
Install operating system and drivers
for
peripherals/ devices
Install application software
Conduct testing and documentation
7
INSTALL AND CONFIGURE
COMPUTER SYSTEMS

8. Install network cables
Set network configuration
Set router/Wi-Fi/ wireless access
point/repeater
configuration
Inspect and test the configured computer
networks
8
SET-UP COMPUTER
NETWORKS

9. Set-up user access
Configure network services
Perform testing, documentation and
pre-
deployment procedures
9
SET-UP COMPUTER
SERVERS

10. Plan and prepare for maintenance and repair
Maintain computer systems and networks
Diagnose faults of computer systems and
networks
Rectify/correct defects in computer systems
and networks
Inspect and test the computer systems and
networks
10
MAINTAIN AND REPAIR COMPUTER
SYSTEMS AND NETWORKS

11. By: Sir Lloyd Arnold Catabona

12.  You must identify the hazard
where you are working and
decide how dangerous they are.
Eliminate the hazard or modify
the risk that it presents.
12
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

13. 1. Do not work alone so that there’s
someone who can take care of you in
case of emergency.
13
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

14. 2. Always power off the computer and
unplug the computer before working
on it.
14
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

15. 3. Take away any liquid near your
working area to avoid getting
electrocuted or accidentally damaging
computer parts.
15
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

16. 4. Be careful with tools that may cause
short circuit.
16
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

17. 5. Always discharge your self before
touching any part of the computer.
17
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

18. 6. Clean the area before and after
using it to maintain sanitation and
prevent accidents.
18
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

19. 7. Do not use excessive force if things
don’t quite slip into place.
19
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

20. 8. Hold the components to the on the
edges and do not touch the integrated
circuit (IC) parts.
20
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

21. 9. Always wear personal protective
equipment (PPE) in accordance with the
organization’s OHS procedures and
practices.
21
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

22. 10. Use brush, compressed air or blower
in cleaning the system unit.
OCCUPATIONAL HEALTH AND
SAFETY PROCEDURE

23. SET UP COMPUTER
NETWORKS
Jerome I. Surio
CSS NC II Trainor

24. WHAT IS NETWORKING?
• Networking is referred as connecting computers
electronically for the purpose of sharing
information. Resources such as files,
applications, printers and software are common
information shared in a networking.

25. THE MOST COMMON TYPES OF
NETWORK DEVICES ARE:
Repeater
Network Hub
Switch
Modem
Access Point
Router

26. TWO TYPES OF
ETHERNET CABLES
•Straight-through
•Crossover

27. TWO TYPES OF
ETHERNET CABLES
•Straight-through
•Crossover

28. WHAT IS STRAIGHT THROUGH
CABLE?
A straight through cable is a type of twisted
pair cable that is used in local area networks to
connect a computer to a network hub such as a
router. Straight through cable use one wiring
standard: both ends use T568A wiring standard or
both ends use T568B wiring standard. The following
figure shows a straight through cable of which
both ends are wired as the T568B standard.

29. WHAT IS CROSSOVER
CABLE?
A crossover Ethernet cable is a type of Ethernet
cable used to connect computing devices together
directly. Unlike straight through cable, the RJ45
crossover cable uses two different wiring
standards: one end uses the T568A wiring standard,
and the other end uses the T568B wiring standard.

30. WHAT IS CROSSOVER
CABLE?
Use straight through Ethernet cable for the following cabling:
• Switch to router
• Switch to PC or server
• Hub to PC or server
Use crossover cables for the following cabling:
• Switch to switch
• Switch to hub
• Hub to hub
• Router to router
• Router Ethernet port to PC NIC
• PC to PC

31. T-568A AND T-568B
COLOR CODING ARRANGEMENT

32. T568B

33. T-568A AND T-568B