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::::::::: CDS
Network:::::::::
CDC's network spans across multiple cities of Pakistan. The sites are interconnected through highly reliable WAN links. The reliability of links is backed up with multiple levels of redundancy. In case of a link failure, the fallback to backup link is completely unnoticeable. Along with reliability and redundancy, security is one of the most important concerns for CDC. Confidentiality, Integrity and Authenticity is ensured for all transactions that are carried over the network.
Stock users are connected through resilient and dedicated links while clients other than stock users (external clients) connect to the CDC network through dial-in to our local point of presence by using Pakistan Telecommunication Corporation’s public switched telecommunication network. Sufficient numbers of simultaneous dial-in lines at various sites are maintained to allow first call connection. We also have more reliable and high bandwidth metro fiber connectivity for the external clients. Currently this facility is being offered to the Karachi based external clients only.
In line with the International standards, CDC also maintains state of the art Disaster Recovery (DR) and Business Continuity by maintaining a complete DR site which enables the company to retain all of its critical services with zero data loss from the DR site in case of a site level disaster.
::::::::: CDS
Software:::::::::
CDS is a menu-driven client/server application system. The Graphical
User Interface based proprietary client runs on a Microsoft Windows
based PC - the client neither stores users data nor executes the
application logic: the customer data as well as application logic
resides on the central server managed by CDC.
The installation and set-up of the proprietary CDS Client at customer
site is supported by the Customer Network Support Services.
The application is being continuously enhanced in-house to include
more functions and features. Standards based Software Engineering
process is being implemented to ensure uninterrupted availability of
the system and the integrity of the data.
The software updates for CDS Client are delivered over the CDC network
for efficient configuration management.
::::::::: CDS
Hardware:::::::::
CDS Client is an Intel based PC with a LAN card for the users at local
stock exchange LAN and a standard modem for the remote users.
:: Minimum hardware
Configuration for CDS Applications
|
Component |
Requirement
|
|
Processor |
Intel Pentium IV 3GHz or above |
|
RAM |
512 MB or above |
|
Hard Disk |
Atleast 5 GB Free |
|
Serial Port/USB for External
Modem |
1 at least |
|
Printer |
High quality/speed Laser printer
|
|
Mouse |
2/3 Buttons (PS1 or PS2
connector type) |
|
Key Board |
101/104 Keys (PS1 or PS2
connector type only) |
|
Key Board Interface on
Motherboard |
PS1/ PS2 |
|
Monitor |
15 “ SVGA
Color Monitor with 1024x768 Display Resolution |
|
VGA Card |
16MB or above
Graphics Card on AGP/PCI slot |
|
CD ROM |
50 x or above |
|
Brand |
Branded PC |
:: Operating System Configuration
|
Minimum |
Requirement
|
|
Microsoft
Windows 2000 Professional/ Windows XP Professional (Licensed)
with latest Service Pack & patches |
Microsoft
Windows 2000 Professional/ Windows XP Professional (Licensed)
with latest Service Pack & patches |
|
Internet
Explorer version 6.0 or above |
Internet
Explorer version 6.0 or above |
|
Acrobat
Reader 7.0 |
Acrobat
Reader 7.0 |
::
Connectivity Option
(NIC for Stock Exchange Users)
|
Manufacturer |
Type |
|
Any Brand |
RJ-45
Connector Type (10/100 Mbps) |
::
Modem for Remote Users/ Dialup Users
|
Minimum |
Requirement
|
|
US Robotic / Zoltrix
56 Kbps (Internal or External)/ ISDN BRI |
ISDN Modem/ ISDN BRI |
:: Others
|
Antivirus Software |
Licensed
version of any commercially available Antivirus software
is strongly recommended. End user must ensure that that
software is kept up to date with its latest available
virus signature files/ patches/upgrades. |
|
Uninterrupted Power Supply |
Minimum 30 minutes backup
power supply is strongly recommended. CDC does not have
any specific brand preference in this regard. |
|
PC reserved for exclusive CDC
applications’ usage |
In order to achieve maximum
security/ performance the end user must ensure that the
PC with this recommended configuration must be exclusively
used only for CDC applications. Internet usage on the
same PC is strongly discouraged. |
|
Disclaimer |
While variations to the above-mentioned
recommended configuration might work in certain cases
but in order to get the best results CDC would strongly
recommend adhering to its recommendations and accordingly
would not be able to fully support in case of variations. |
The central servers comprise of powerful, fault-tolerant and redundant
servers with large storage devices and fast archival systems at the
primary site.
The contingency site comprises of a similar capability server, storage
device and compatible archival systems.
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