Portable
Wide Area Network
Connectivity Suitcase
(PWANCS)
Q. What is a PWANCS?
A. Portable Wide Area Network Connectivity Suitcase is a portable (45 to
60 lbs.) suitcase that allows you to access an unclassified and/or secure
network connection and up to 12 telephone lines.
Q. What are the PWANCS specifications?
A. Height: 13.5" x Width: 20.5" x Depth: 22.5"
Weight: 60 lbs. (copper/fiber) 45 lbs. (fiber only)
Sturdy black plastic case which encloses 2 Cisco routers, 1 Pairgain HDSL
(some models), 1 Canoga Perkins Fiber Optic Modem, Westell SmartJack
(some models), Timeplex CSU, Power Supply, Cooling Fans and a 24 port
patch panel with access to data and up to 12 voice connections.
Q. What does a PWANCS do?
A. PWANCS enables a smooth connection between your main site and
your field location via the NIPRNET/SIPRNET and provides your field
location with up to 12 telephone lines.
Q. How does it work?
A. The suitcase allows your computer to be connected to the suitcase via
the installed patch panel, utilizing the fiber optic interface box or a copper
cable that connects to the land line system. The Cisco routers have their
own distinctive IP address. The routers take your information, verify the
address, and send it to the Timplex CSU (Channel Service Unit). On the
receive side the routers receive the information from the CSU and look for
the specific IP address. When it finds the address, it accepts the
information.
The Timplex CSU splits the Internet and telephone signal coming in and
combines the signal going out. The signal is sent from the Timplex CSU to
one of three devices installed in the suitcase. Both the sender and the
receiver must have the same equipment for the system to work properly.
The three devices that may be used are:
Pair Gain HDSL (High Speed Digital Subscriber Line). The combined signal
transmitted from the Timplex CSU is changed to a 1.54MBPS or T1 signal.
At the receiving end it converts the T1 signal back to a signal the Timplex
CSU can understand. This method normally uses conditioned copper
telephone lines.
Westell Smartjack. The combined signal from the Timplex CSU can be
regenerated or passed through depending on the configuration. The
receiving unit will take the signal and, based on the configuration, will
either regenerate or pass the signal through to the CSU. The Smartjack can
function also as a troubleshooting device by providing a loopback to the
Central Office. The Smartjack is normally used in conjunction with an
unconditioned or plain copper telephone line.
Canoga Perkins Fiber Optic Modem. This modem takes the signal from the
Timplex CSU and converts it to light on the sending equipment, and back
to digital on the receiving equipment. This method uses fiber optic cable.
Q. What PWANCS models are available?
A. There are two models currently available. A copper/fiber model and a
fiber only model. The PWANCS can be built to suit your needs.
In summary the router verifies the address, sends it to the CSU where it
merges the voice and data into one signal. That signal is then sent to one
of the three devices listed above to convert and transmit to the receiving
end. At the receiving end the signal is accepted by one of the three
devices listed above and sent to the CSU. There it is broken out to voice
and a data signal. The CSU then sends the signal to the router or to the
telephone jack(s).
Click below to download the GStek Portable Wide Area Network
Connectivity Suitcase brochure in Adobe Acrobat .PDF format.
GStek PWANCS Brochure
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1100 Madison Plaza
Suite A
Chesapeake, VA 23320
757.548.1597
757.436.6842 (fax)
