DigiPoints
Volume 2
Prequalification Information
•Brand and model of computer
•Type of processor
•Processor speed
•Amount of RAM memory
•Amount of memory in hard drive
•Operating system type
•Peripheral devices attached to computer
•Available ports on computer
•Available expansion slots
•Type of bus structure
•Location of computer
•Are there any CATV jacks near the computer?
•Have they been installed by the cable company?
•Is there a telephone jack near the computer (for telephone return systems)?
•Is the computer equipped with a telephony modem (for telephone return systems)?
•Type of NIC installed (if customer provided)
©SCTE
VA 3. 1
DigiPoints
Volume 2
Installing a Network Interface Card
Backplane Screw
Network Interface Card
ISA Or EISA Slot
©SCTE
VA 3. 2
DigiPoints
Volume 2
Remodulation and Frequency Translation at Headend
(Manufacturer-Proprietary Cable Modem)
Network
Management
Workstation
Ethernet Network
Router
Leased
Line
Node Data Controller
(RF to Ethernet Connection)
Internet
Local Content
Server
Node Transceiver
(Frequency Translation)
Hybrid Fiber Coax Network
Cable Modem
Ethernet
Interface
Subscriber’s Computer
©SCTE
VA 3. 3
DigiPoints
Volume 2
Cable Modem Installation Flowchart (Manufacturer Proprietary Modem)
(Inadvertently Locked Serial Port)
Open box,
Unpack
Cable Modem
Connect
AC Power
and
Serial Port
to Laptop
Serial
Port
Locked?
N
Access Manufacturer’s
Software via Laptop to
Change Parameters
from Default Set
Is There
a Parameter
Template
N
Enter all
Parameter
From Service
Order
Y
Try Another
Modem
Compare Service
Order to Template,
Make changes to
Modem Parameters
on Template, and
Input IP Addresses
Power
Level
OK?
N
Y
Y
Download
Parameters
from
Laptop to
Modem
Conduct
Ping
Test
to Verify
Network
Access
Check RF
Power Level
Using Head End
Spectrum
Analyzer and
Monitor Channel
Plug Cable
Modem into
RF Port
Y
Network
Test
OK?
Done
N
Reset
From Laptop via
Modem Serial
Port, using
Manufacturer’s
Software
Joint
Troubleshoot
With
Headend or
Network Operations Center
©SCTE
VA 3. 4
DigiPoints
Volume 2
Cable Modem Installation Flowchart
Using Serial Port for Provisioning
(Manufacturer Proprietary Modem)
Connect
AC Power
and
Serial Port
to Laptop
Open box,
Unpack
Cable Modem
Serial
Port
Locked?
N
Access Manufacturer’s
Software via Laptop to
Change Parameters
from Default Set
Is There
a Parameter
Template
N
Enter all
Parameter
From Service
Order
Y
Y
Try Another
Modem
Compare Service
Order to Template,
Make changes to
Modem Parameters
on Template, and
Input IP Addresses
Power
Level
OK?
N
Y
First
Modem
Tried?
Call Supervisor to
Verify Use of Alternate
Provisioning Method
N
Download
Parameters
from
Laptop to
Modem
Conduct
Ping
Test
to Verify
Network
Access
Y
Check RF
Power Level
Using Head End
Spectrum
Analyzer and
Monitor Channel
Plug Cable
Modem into
RF Port
Y
Network
Test
OK?
Done
N
Reset
From Laptop via
Modem Serial
Port, using
Manufacturer’s
Software
Joint
Troubleshoot
With
Headend or
Network Operations Center
©SCTE
VA 3. 5
Figure 5
Telephone Return Installation Flowchart
DigiPoints
Volume 2
START
Does
the room have an
existing
telephone jack?
Y
Y
Is dialtone
present at
jack?
Y
Can you
break dialtone
for tone
dialing?
N
Is there noise
on the line
when a connection
is made?
Run silver
strand wire
from jack to
cable modem
Done
N
N
Check for
open circuits
Check for
loose connections
at jack
Check for
reversed
leads
Remove tone at
NIU install a jack,
Reconnect house
wiring to network
Is there a
telephone junction
box in the
room?
Y
Go to Network
Interface Unit
Disconnect
the house
telephone
wiring from
the service
provider’s
network
Connect tone
generator to
house leads
at Network
Interface Unit
Go to junction
box to monitor
for tone
Y
Tone
Found?
N
N
Run new line
from NIU to
room with
cable modem
Add new
jack and
connect
wires
©SCTE
VA 3. 6