10/23/04
Copyright (C) 2004
All rights reserved
Kenneth Delahoussaye Consulting
in association with Kadtronix
web: www.kadtronix.com
email: kdelahou@worldnet.att.net
A typical reader configuration consists of host PC (not included), card-reader(s), SCAS host software, relay control device, USB hub, USB-to-serial adapter, USB line extender, and cabling for remote card access up to 100 ft.
A reader configuration may control up to 4 doors/gates which must be within a range of 100 ft. of the the host computer. For greater range or more doors/gates, additional configurations can be purchased. A minimum of two card-readers is required per configuration. One reader is used for local card creation and maintenance. One or more (up to 4) additional card-readers are required for each door/gate you want to control.
The plug-n-play design allows easy expansion for additional card-reader stations. Up to 5 readers may be attached to the host PC. Or, use multiple hosts for a distributed approach. The diagram below indicates a typical SCAS reader configuration consisting of a single host PC, two smart-card readers, and related hardware (USB line extender and USB-to-serial device not shown):
A local reader is placed near the host PC, allowing you, the user, to format and maintain smart cards. The remote reader is located in the access area near the door or gate being controlled. A customer or employee desiring access inserts his pre-formatted card and gains entry to the area.
The beauty of smart cards is that they contain
the information in a securely encoded format within the card itself, eliminating
the need for the host PC to maintain a large user database. The card
is automatically updated with each customer access. Formatted cards
may be initalized for a pre-determined termination date after which they
will no longer permit access entry unless re-formatted by you. You
may also designate a specified number of maximum accesses if desired.
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SCAS Host Software |
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USB SmartCard Reader |
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4-Port USB Hub |
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USB-to-Serial Adapter |
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Serial (RS-232) Cable, 100ft. |
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USB 1.1 Line Extender |
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Cat5E Patch Cable, 100 ft |
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Single Channel Relay Board |
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Compatible smart cards can be obtained from the following source:
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Smart Cards |
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Start Menu -> Programs -> SmartCard Access System (SCAS) -> SmartCard
Access System
When the "Register" dialog appears, fill in the requested information
as shown in the example below. When complete, click "Send" to transmit
the information to Kadtronix. (A valid e-mail account and internet
connection are required to perform this operation.):
When you receive the license key from Kadtronix, select the following
main menu item:
A dialog image will be shown on your display. Enter the encoded
key string as shown in the example below. Click "OK" to accept the
new key and enable the application.
This page allows you to configure the SCAS software based on your application's specific requirements. The "Card-Reader" column selects the smart card reader. Note that, unlike RS-232 ports, USB ports are not statically assigned. There is no guarantee that a card-reader assigned to USB 0 will maintain the port assignment at the next application invocation. However, in most instances, the assignments will be maintained unless you remove or add readers. (Note: For proper operation it is imperative that you do not unplug readers once you have established the desired configuration.)
The "Function" column establishes the card-reader function. Your first entry should be "Card Admin". As administrator, you will perform exclusive operations such as card creation, access enable/disable, and logging. Ordinarily, there will be only one administrator in a configuration. You should choose "Access Control" for the remaining selection(s). This designation indicates that the reader is used by customers desiring access to an area.
The check-box to the left of each row indicates whether access control is enabled for the designated reader. This box is useful in situations where you wish to disable access to all customers at a given door or gate.
The "Station Name" column allows you to enter a character string that describes the card-reader function such as "Administrator" or "North Gate".
"Door/Gate Activation Port" is the RS-232 port for communicating with the relay control device. (When you install the USB-to-RS232 adapter, Windows will automatically assign a RS-232 port to the device. This is the port to use.)
"Door/Gate On Delay" defines the amount of time do delay when the door/gate relay is activated due to valid card insertion. After this time period elapses, the relay de-actviates automatically.
"Door/Gate On Cmd" and "Door/Gate Off Cmd" define the command strings that are used for activating and de-activating the door/gate relay. You should not modify these strings unless instructed to do so by Kadtronix.
SCAS application software allows you to record all access attempts to daily log files. To enable this feature, check the "Write to log file" check-box. In addition, you may wish to hear a computer-generated sound when a card is inserted in any reader. To enable this feature, check the "Play sound on card insertion" check-box. Use the "Browse" button to select the desired sound (.wav) file. Use the "Preview" button to hear the sound.
Use "Increment card access counter" to automatically increment the card's
internal counter on each access entry. If checked, the counter will
be compared with the maximum value. If the counter reaches this maximum,
access will be denied.
(Note: While this feature can be quite
useful, you should know that the additional processing involved introduces
a delay between the time of card-insertion and door/gate activation.
The additional delay is approximately one second.)
When you have completed all property settings and are satisfied, click "OK" to terminate the dialog and save your new settings. If you do not wish to save your settings, click "Cancel" instead.
As administrator, you may freely modify the contents of any inserted card. A card customer is assigned a number of fields as shown above. The name fields should contain the customer's first and last name. The ID is optional and should be any desired combination of alpha-numeric characters. (Note: You may choose to use strictly numeric characters as shown in the example above. Choosing a numeric ID allows SCAS to automatically increment the value after each assignment.)
"No. Access Entries" defines the number of accesses which have occurred by this customer. On each card-insertion, this value is automatically incremented if the "Increment card access counter" check-box is enabled (see the Properties page).
"Max. Access Entries" is the maximum allowed entries for this customer. When "No. Access Entries" reaches this value, the customer will be denied access.
"Termination Date" serves a similar purpose as "Max. Access Entries". The customer will be allowed access as long as the current date precedes the termination date. Otherwise the customer is denied access. (Note: Both the termination date and max. access entries are used concurrently to determine a customer's access. If either condition is met, customer access is denied.)
"Date Created" indicates the date which the card was formatted (or re-formatted) for customer use.
"Last Modified" defines the date which the card contents were last changed or updated.
"Door/Gate Activation" defines the RS-232 communication port for relay control. (This is the same information indicated in the Properties page described previously.) The "..." button to the right of the combo-box control is a test button. When pressed, this button issues a relay "ON" command to activate your door or gate. It then de-activates automatically after a pre-determined time period. You may also use this feature to open a door/gate for non-card holding visitors.
There are a number of buttons near the bottom of the display which you will find useful as the administrator.
The "Format..." button prepares a card for first-time use and permits you to assign the card to a customer.
"Erase..." removes all content from a card, making it invalid. An erased card behaves like a card which has never been formatted. Any access attempt using an erased card will be denied by SCAS.
Use the "Apply..." button to store any field changes you have made to a card. You, the administrator, may modify any of the card fields as desired.
The "Refresh" button udpates the display with the current card contents.
As indicated above, all defined readers are listed in the region. The check-box indicates whether access control is enabled for the designated reader. (This is the same designation described in the Properties page.)
The colored LED indicators define the connection and card-insertion state of each reader. A LED that is off (dark appearance) indicates a non-detected reader, typically meaning that the reader is not plugged into the computer. A solid green indicator means the card-reader is detected and active and there is no inserted card. A flashing green indicator defines a detected card-reader that has an inserted card.
Summary text near the bottom of the region provides information concerning the number of active readers detected by SCAS software:
"Detected card-readers:
3"
Tools -> View Log File...
"Timestamp","Station","User_ID","Last_Name","First_Name","Num_Accesses","Max_Accesses","Term_Date"
10/23/04 06:16:32,Administrator,00000101,Anderman,Penny,00026,01000,10/22/2005 10/23/04 06:16:32,West Gate,00000100,Peterson,Bob,00954,01000,10/21/2005 |
Kadtronix
web: http://www.kadtronix.com
email: info@kadtronix.com