TNCS
Hardware
 In order to provide inter-connection to the Scientific-Atlanta
broadband transmission and third party products, a variety of
hardware components are required to interface the TNSC software
to each of the devices being monitored and controlled. The
following is a list of the standard hardware components
required:
- TNCS Server Computer
- Protocol Interface Cards - (RS-232 & RS-485)
- Cable Kits - device specific
- TNCS Agile RF Modem
- Transponders - device specific
TNCS Server Computer
The TNCS Server software requires an industry standard computer
with Windows NTŪ operating system. Desktop and rack-mount
models are available. The TNCS Client software
requires an industry standard computer with either Windows NTŪ
or Windows 98Ū. Desktop and Laptop models are available.
Note:
Desktop computers and Laptops not available in Europe
 Protocol Interface Cards
Four port PCI RS-422/485 and RS-232 interface cards are
installed in the Server computer to interface the devices to be
monitored and controlled. For a typical headend system using
Scientific-Atlanta Broadband Transmission products, both
RS-422/485 and RS-232 interface cards are required.
Cable Kits
A variety of cables and connectors are offered for interfacing
devices to the Protocol Interface Cards. Cable kits are offered
for most Scientific-Atlanta Transmission products and some third
party devices. Connector types, cable lengths, and quantity may
differ for each type of cable kit. Please consult
Scientific-Atlanta on your requirements.
RF Modem
The TNCS also incorporates versatile RF modems that can be used
to communicate with remote transponders in the HFC plant. They
can also as be utilized as a RF interface for optical equipment
located in a remote hub. For maximum system scalability,
multiple RF modems and receiver modules can be plugged into the
same chassis.
Scientific-Atlanta's RF modem
is a modular chassis system that consists of the following plug
in devices:
- Plug-in Power Supply
(Available in 230VAC, 120VAC, and -48VDC)
- Plug-in HFC Modem
- Plug-in Agile Transmitter
- Plug-in Agile Receiver
Transponders
Transponders are the primary hardware used in the TNCS system.
The transponders monitor network devices, providing feedback on
the operation of the equipment. In addition, RF modems can be
used to communicate with remote equipment. The TNCS incorporates
an advanced set of transponders. All transponders offer a
powerful set of operating features described below.
Features of the
Transponders:
- Frequency agile RF modems
- No-adjustment installation
- Downloadable firmware
- Non-volatile configuration
parameters
- User-define minor and major
alarm limits
- Factory-programmed addresses
- Real-time measurement
display
- Automatic RF return level
adjustment
- Remote control of network
equipment
Scientific-Atlanta's
transponder family consists of over 30 unique items, each
tailored to produce the highest possible price-to-performance
ratio for a given application. Examples include:
|
Item |
Function |
| Power
supply transponder |
Provides
battery voltage readings, utility AC outage detection, a
precision battery temperature probe, and more. |
| Optical
equipment transponder |
Monitors
optical transmit and receive power levels, RF levels,
voltages, currents, and many other parameters. |
| RF
amplifier transponder |
Monitors
RF levels, voltages, currents, and many other
parameters. |
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