This explains the path-breaking patented technology which can ensure 100% security of an organisation's internal databases. This is used in conjunction with the PVDTN connectivity solution.

1. STS
SECURE TRANSFER SYSTEM
For transfer of information & data
back and forth
between completely separated networks –
physically, electronically, and
electromagnetically

2. 1. Figure 1 shows the emblematic diagram of the STS
2. Figure 2 shows the schematic diagram of the STS
arrangement. The Secure Switch (SS) connects IS
alternately to the INTRANET and the Internet LANs and
gets into a two way synchronisation with CS
(Organisation communications server) and the PS
(organisation’s Public or Web server physically
connected to the Internet LAN), respectively.
3. Figure 3 shows the data flow diagram for the STS for
different positions of the Secure Switch (SS).
4. Figure 4 shows the schematic diagram of the Secure
Switch – 3 position, electromechanical, micro-controller
driven, RJ45 switch.
a. The switch used for the actual STS is driven by
programmed commands located in the Intermediate
Server (IS) to which it is permanently connected.
b. The switches used with IBNs (Internet Browsing
Nodes) are driven by manual commands given from
the IBNs to which these are connected.
5. Figure 5 shows the duplicated STS at the DRS (disaster
recovery sites) for organisations which have these.
6. Figure 6 shows the manner in which Organisation LANs
are connected to the Internet at present from the ISP
LANs or the NIXI at the city.
7. Fig 7 shows the manner in which the Internet will be
connected to the separated Internet LANs at the central
location of the organisation. Similar separated Internet
LANs will also be placed at the other organisation
locations.

3. Fig 1
Schematic Diagram of STS
Storage
INTERNET PS
Storage
SS IS
Storage
INTRANET CS
•PS, IS, CS have same fields which are synchronised at each connection.
•CS collates data from internal data bases to pass on to PS through IS,
and also distributes information received from the interactive Web
pages to the relevant data base.
•The information stored in the Storage associated with the PS helps to
carry out e-commerce activity like placing orders, internet banking. Etc.
The storage is updated in each STS cycle.

4. Fig 2
Switching arrangement of
STS
Public Server
Company For Company information,
Company information Inter-active Web pages
data bases and and
mail server Internet mail Gateway
DB1 DB2 CS PS
0
Company LAN Internet LAN
1 2
3-Pos Electro -mechanical
RJ45 switch SS
Intermediate Server
For transferring information
and mail back and forth
Between CS and PS
(IS)
Switch changes state on
CL IL Automated settable commands
I/O I/O from software in IS
Box Box CL IL
I/O I/O
Box Box
0
1 2 3-Pos EM RJ45 0
Switch 1 2
State changes
With manual command
From Node SS
Nodes for
Internet browsing
Nodes for
Internet browsing

5. Fig 3 – Overall datagram
CS IS PS
Company Info
Web Info
Company
External mail
Storage update
Fig 3a
Step 1 – IS connected to CS
CS IS PS
Changes in
Company Info Company
Info received
Changes in
Web Info Web
Info received
Incoming Outgoing
Company Mail Mail
External mail received received
PS STRG CS STRG
Storage update PSPPS
Update Update
received received
Fig 3b
Step 2 – IS in Null after connecting to CS
CS IS PS
Changes in
Company Info Company
Info received
Web Info
Outgoing
Company Mail
External mail received
CS STRG
Update
Storage update received
All content
In IS cleansed
For viruses etc

6. Fig 3c
Step 3 – IS connected to PS
CS IS PS
Changes in
Company Info Company
Info received
Changes in
Web Info Web
Info received
Incoming Outgoing
Company Mail Mail
External mail received received
PS STRG CS STRG
Update Update
received received
Fig 3d
Step 4 – IS in Null after connecting to PS
CS IS PS
Company Info
Changes in
Web Info Web
Info received
Incoming
Company Mail
External mail received
PS STRG
Storage update Update
received
All content
In IS
Cleansed for
Viruses, etc.

7. Fig 4
Schematic Diagram of Secure Switch (SS)
3-Position, Electromechanical, Micro-controller
driven RJ45 switch
RJ45
socket for
connecting
to Company
secure
LAN Switch
RJ45
socket MC1 R2
for R1
connecti
ng to
Interme
MICRO CONTROLLER LOGIC
diate
Server
MC2 R1
LAN R2
Card
Serial Port
9 Pin D Type
RJ45
socket for
connecting
to Internet
LAN Switch
Normally
closed relay
contact
Normally
open relay
contact
12V DC

8. Fig 5
STS at CDC
And DRS
Proxy Server
Company For Company information,
Company information Inter-active Web pages
data bases and and
mail server Internet mail Gateway
DB1 DB2 CS PS
CDC
0 P2P
Company LAN Internet LAN
1 2 Internet
Leased
SS 3-Pos Electro -mechanical Line
Duplicated RJ45 switch
INTRANET
IS
WAN LINKS
Intermediate Server
For transferring information
and mail back and forth Internet
Between CS and PS
Proxy Server
Company For Company information,
Company information Inter-active Web pages
data bases and and
mail server Internet mail Gateway
DB11 DB21 CS1 PS1 P2P
Internet
Leased
DRS Line
0
Company LAN Internet LAN
1 2
SS1 3-Pos Electro -mechanical
RJ45 switch
IS1
Intermediate Server
For transferring information
and mail back and forth
Between CS and PS

9. STORAGE SYNCH THROUGH STS
INTRANET INTERNET
SS
C P
S S
NAS NAS
DB SERVERS I
S
NAS
INTRANET SAN

10. Fig 6
PRESENT METHODS OF INTERNET CONNECTIONS
Leased lines to nearest
INTERNET HUIB
ISP ISP
Authentication Mail
Server Server
P
S
T GATEWAY
ROUTER
N
ISP LAN
ACCESS ROUTERS ACCESS ROUTERS
LEASED LINES
Company Company Company
LAN BROADBAND WEB Mail
Server ACCESS Server Server
NETWORK
In this scenario, all Internet mail users In this scenario, the Company has its
Use the ISP mail server for their e -mail Own Mail and WEB server, and authentication
And the ISP authenticates their user name at these Servers.
and pass word Mail from the INTERNET from all the servers
meant for this server gets downloaded on this server.
Clients access their Internet e -mail from this server.
The leased line from the Company premises
Terminates on the Internet Gateway Router of the ISP,
and not its Access Routers

11. Fig 7
PROPOSED INTERNET CONNECTION &
TRANSFER OF INFORMATION FROM PRIVATE NETWORK
THROUGH SECURE TRANSFER SYSTEM (STS)
Remote log in to Company Proxy Mail
and Web Servers
PSTN
ISP ISP INTERNET
Authentication Mail
Server Server
P Leased lines
S to nearest
INTERNET
T HUIB
N GATEWAY
ROUTER
ISP LAN
ACCESS ROUTERS ACCESS ROUTERS
Internet
log -in from
off -campus
LEASED LINE CONNECTIONS Log -in to company LAN
stand alone
TO ISP LAN FROM through PVDTN
machines in Company Company
DIFFERENT COMPANIES connections
same town/city Public Public
at Residences in same
WEB Mail
or other Cities / towns.
Server Server
C C
P P Dial -up modem
W M Line conversion equipment
S S E
C C R
R
M C A V
P P
S S S D
S INTERNET LAN S
T P
N Three -way S
R switch
A
E S Router
P COMPANY LAN
A LEASED LINES
B I FROM
X S COMPANY WAN
M
W
Internet
Three -way
log -in from
switch
in-campus
stand alone Node in Company premises with Internet browsing facility
machines