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iGuard System Quick Specifications

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Written by James Childers | 06 May 2010

Quick Specifications for iGuard Systems
Technical Specifications
  • SC = Smart Card Only iGuard
  • FSC = Fingerprint And Smart Card iGuard
SC / FSC
SuperMaster
Power Supply
12VDC, 600mA
1.2Amp Peak
12VDC, 800mA
Fingerprint Sensor
Yes / n/a / Yes
n/a
Contactless Smart Card
reader & writer (built-in)
n/a / Yes / Yes
n/a
Web and Database Server
Built-in
Network Security (SSL)
Optional
Auto Data Synchronization
(i.e., master / slave configuration)
Yes
Maximum Transaction Records stored (Offline)
10,000
20,000
Static / Dynamic IP Assignment
Yes (Support existing DHCP Server)
Non-volatile memory
16MB
Computer Supported (with Internet Browser)
Macintosh, Windows 95/98/NT/ME/XP, Linux and Unix Machine
Valid Characters for Employee ID
0-9, A-B (maximum - 8 characters
Display
20 x 2 LCD with Backlight
n/a
LCD Multi-Lingual
Yes
n/a
Two Finger Enrollment
Yes
Fingerprint Sensor Type
Capacitive (FSC)
Optical (FOSC)
n/a
Fingerprint Sensor Resolution
500dpi / 500dpi
n/a
Fingerprint Sensor scan area (mm)
12 x 15 / 21 x 32
n/a
Image Capture Time
< 1 sec. / < 1 sec.
n/a
Verification Time
< 1 sec. / < 1 sec.
n/a
False Rejection Rate
< 1 % /  < 0.001% *
n/a
False Acceptance Rate
< 0.01% / < 0.0001% *
n/a
Auto-match Count
30 Max
n/a
Network Protocol
TCP/IP, Wiegand, RS485, RS232 (Optional)
Wiegand - 500 feet (150 m) maximum distance 9-conductor, stranded, overall shield 22 AWG
RS 485 - 2-conductor, shielded, solid, 18-24 AWG
Ethernet - 300 feet (100 m) maximum distance Category 5 cable
Network Interface
Ethernet (100-Base T)
Real Time Clock
Last for approx. 2 days without power
External Controls
Door Strike
Open-Door Switch
Break-in Alarm
Door Status
n/a
Dimension (mm)
105(W) x 38(D) x 150(H)
254(W) x 193(D) x 61(H)
Mounting Plate Single-Gang style electrical box, 48” to bottom of box
Dimensions SC, FSC: 4.1” (W) x 2.2” (D) x 5.9” (H) (105 x 55 x 150 mm)
Super Master: 10.2” (W) x 7.5” (D) x 3.5” (H) (260 x 190 x 90 mm)
Weight SC, FSC: 1.4 lbs (.64 kg)
Super Master: 1.4 lbs (.635 kg)
Hardware Processor 32-bit AMD CPU, 386 processor
Memory SC, FSC; 32 MB onboard Flash Memory, 32 MB RAM
Super Master: 32MB onboard Flash Memory, 128 MB RAM

 * See notes on Fingerprint Technology and FAR/FRR below.

FAR and FRR Notes

The False Rejection Rate (FRR, also called False Non-Match Rate or FNMR) states the percentage of instances that an authorized individual is falsely rejected by the system. The False Acceptance Rate (FAR, also called False Match Rate or FMR) states the percentage of instances that a non-authorized individual is falsely accepted by the system. FRR and FAR (or FNMR and FMR) are diametrically opposed. Therefore, raising the FAR will lower the FRR and vice-versa. Accordingly, FRRs and FARs can be adjusted to fit the requirements of the entire security system.

In a real-world system, there are many factors that can affect FRR and FAR. For a minutiae-based fingerprint recognition system, these factors include:

  • (A) the fingerprint capture device,
  • (B) the fingerprint minutiae (template) extraction algorithm,
  • (C) the fingerprint minutiae matching algorithm,
  • (D) the user interface and
  • (E) the user.

There may be myriad other factors that can depend on the system, how it is used and the conditions in which it is used. For this reason, many tests for "performance," "accuracy" or other test that determine FRR and FAR must be able to control as many known factors as possible and maintain them consistently throughout all tests. 

It cannot be stressed enough that accurate fingerprint placement during the enrollment process is the key to achieving the best FIR and reducing FRR and user frustration.  The iGuard LM520-FOSC makes this easy by having the fingerprint sensor at an ergonomically correct angle for feature extraction and FIR encryption.
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