Recognition Systems HandKey II User manual

HandKey II
Manual
1520 Dell Ave.
Campbell, CA 95008
Technical Operations: 408-341-4110
RSI Main: 408-341-4100
RSI Main Fax: [phone]
Web: www.handreader.com
P/N: 70100-6001 Version 3.0

This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy, and, if not installed and used in
accordance with the Installation Manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which
case the user will be required to correct the interference at the user’s own expense.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numerique de la classe A respecte toutes les exigences du Reglemente sure le materiel
brouilleur du Canada.
© 1998 through 2003 Recognition Systems, Inc. – ALL RIGHTS RESERVED
Document Part Number: 70100-6001 – Revision 3 – July, 2003
HandKey and HandNet are trademarks of Recognition Systems, Inc.
Windows is a trademark of Microsoft Corporation.
The trademarks used in this Manual are the property of the trademark holders. The use of these
trademarks in this Manual should not be regarded as infringing upon or affecting the validity of any
of these trademarks.
Recognition Systems, Inc. reserves the right to change, without notice, product offerings or
specifications.
No part of this publication may be reproduced in any form without the express written permission
from Recognition Systems, Inc.

Table of Contents
Introduction 4
Biometrics 4
Principle of Operation 4
Specifications 7
Planning an Installation 10
Site Preparation 10
HandReader Placement 10
Wiring 11
Power Input 11
Battery Backup 11
Earth Ground and Shielding 12
Door Control Output 15
Lock Output Mode 16
Card Reader Emulation Mode 16
Inputs and Outputs 16
Networking and Communications 18
Stand-alone HandReader 18
Master or Remote HandReader in a HandReader Network 18
Remote HandReader in a HandReader Network Connected to a Host PC 18
Remote HandReader Connected to a Host PC via Optional Modem 19
Remote HandReader Connected to a Host PC via Optional Ethernet 20
Printer 20
Mechanical Installation 22
Wall Plate Installation 22
Mounting the Wall Plate 23
Wiring Connections 26
Erasing the Memory 36
Enter a Command Menu 38
If No One is Enrolled in the HandReader 38
If Users are Enrolled in the HandReader 38
Programming the HandReader 42
Service Menu 46
Setup Menu 50
Management Menu 58
Enrollment Menu 60
Security Menu 64
HandReader Maintenance 70
Appendix A - Installation Tips 72

Appendix B - Differences in Board Layouts 74
Appendix C - Old Board Configuration Information78
Appendix D - Troubleshooting 94
Glossary 96
Limited Warranty 98

HandKey II Manual
Page 3
Introduction
HandKey II The HandKey II is Recognition Systems’ fourth generation biometric access
control HandReader1. The HandReader records and stores the three-
dimensional shape of the human hand for comparison and identity verification.
Upon verification, the HandReader produces an output that can unlock a door,
send card format data to an access control panel, or communicate with a host
computer. The HandReader also has auxiliary inputs and outputs that can be
used to control other systems such as CCTV cameras and alarms.
Biometrics Biometric is a term describing the automatic measurement and comparison of
human characteristics. While its origins are ancient, the evolution of advanced
scanning and microprocessor technology brought biometrics into everyday life.
Electronic hand geometry technology first appeared in the 1970s. Recognition
Systems Inc., founded in 1986, built the first mass-produced hand geometry
readers and made biometric technology affordable for the commercial market.
Today, Recognition Systems’ products are in use in every imaginable application
from protecting cash vaults to verifying parents in obstetric wards.
Principle of
Operation
The HandReader uses low-level infrared light, and a CMOS camera to capture a
three-dimensional image of the hand. The HandReader then converts the image
to a 9 byte electronic template, and stores the template in a database with the
user’s information.
To gain access, the user enters his or her ID number at the HandReader’s
keypad or uses an external card reader. The HandReader prompts the user to
place his or her hand on the reader’s platen2. The HandReader compares the
hand on the platen with the user’s unique template. If the images match, the
HandReader unlocks the door or sends the user’s ID number to a third-party
access control panel for verification.
The
HandKey II
Reader
The HandReader is an intelligent access control system that can operate as a
stand-alone unit, in a network with other HandReaders, or in a network with a
host computer. Refer to Figure 1-1 when reviewing the information in this
section.
1. For the sake of using a consistent name throughout the manual, the HandKey II is
referred to as the HandReader for the remainder of this manual.
2. The platen is the flat surface at the base of the HandReader (see Figure 1-1). This is
where users place their hands for enrollment and verification. It has guide pins to
position the fingers during use.

Introduction
Page 4
Figure 1-1: The HandKey II
The HandReader has an integrated keypad for ID entry and reader programming.
It has two function keys (F1 and F2) that can be set to activate external devices
such as a doorbell or an automatic door. The and keys
assist in data entry and programming.
Four different features assist the user with hand placement and read verification.
1. A light emitting diode (LED) hand placement display on the HandReader’s
top panel assists users with hand placement on the platen.
2. A liquid crystal display (LCD) shows operational data and programming
menus.
5
46
F1
8
79
F2
0
No Enter
2
13
Clear
*#
Yes
No
Recognition Systems Inc.
PLATEN AND GUIDE PINS
HAND
PLACEMENT
DISPLAY
LCD DISPLAY
FUNCTION
KEYS
VERIFICATION
LIGHTS
N
UMERICAL
KEYPAD
CLEAR ENTER

HandKey II Manual
Page 5
3. “Red light/green light” verification LEDs quickly inform users if their
verification attempts were accepted or rejected.
4. An internal beeper provides audible feedback during keypad data entry and
user verification.

Introduction
Page 6
Specifications
Table 1: Specifications
Size: 8.85 inches wide by 11.65 inches high by 8.55 inches deep (22.3 cm)
22.3 cm wide by 29.6 cm high by 21.7 cm deep
Power: 12 to 24 VDC or 12 to 24 VAC 50-60 Hz, 7 watts
Weight: 6 lbs (2.7 kg)
Wiring: 2 twisted-pair, shielded, AWG 22 or larger (such as Belden 82732)
Temperature: -10C to +60C – non-operating/storage (14F to 140F)
0C to 45C – operating (32F to 113F)
Relative Humidity Non-
Condensing:
5% to 85% – non-operating/storage
20% to 80% – operating
Verification Time: 1 second or less
Memory Retention: 5 years using a standard internal lithium battery
Transaction Buffer: 5120 transactions
ID Number Length: 1 to 10 digits
Baud Rate: 300 to 28.8 K bps
Communications: RS-232, RS-422, RS-485 2-wire, optional Ethernet, optional Modem
User Capacity: 512 users expandable to 32,512
Card Reader Input: Proximity, Wiegand, Magnetic Stripe, Bar Code
(5 VDC provided by HandReader)
Card Reader Output: Wiegand, Magnetic Stripe, Bar Code
Duress Code: 1 leading digit, user definable
Door Controls: Request to Exit input, Door Switch input, Lock output
(open collector, 5 VDC present, sinks to ground, 100 mA max)
Alarm Monitoring: Tamper, Door Forced, Duress
Event Monitoring: There is a variety of monitoring options including events such as:
Invalid ID, Time Zone Violation, ID Refused, Try Again,
Power Failure
Time Zones: 62 total – 2 fixed, 60 programmable
Auxiliary Outputs 3 user definable
(open collector, 5 VDC present, sinks to ground, 100 mA max)

HandKey II Manual
Page 7
Options HandKey units have the following options available.
• Backup Battery Support See Technical Note 70200-0012 – Rev. E
• Modem Communication See Technical Note 70200-0013 – Rev. E
• Ethernet Communication See Technical Note 70200-0014 – Rev. E
Recommend European Power Supply1:
Ault, Inc.
7300 Boone Ave. North
Minneapolis, MN 55428 USA
PH: 612-493-1900
E-mail: [email protected]
Part number: D48-121000-A040G
230 VAC Input, 12 VDC @ 1Amp output (unregulated)
Ault style #41 connector (barrel plug) approved.
Auxiliary Inputs Auxiliary Input 1 and 2
(open collector, 5 VDC present, sinks to ground, 100 mA max)
Table 1: Specifications
1. Not evaluated by UL for UL 294 installations.
recyclable

Introduction
Page 8
UL Compli-
ance
The HandKey II meets UL compliance requirements for UL294 Access Control
Systems under the following conditions:
1. The HandKey II is configured at the factory with a Wiegand output that
enables the HandKey II to communicate with an access control panel. The
access control panel controls the locking and unlocking of the door. The
panel must reside on the secure side of the facility.
2. The HandKey ll has not been tested for UL 294 in an Outdoor configuration.

HandKey II Manual
Page 9
Planning an Installation
Site
Preparation
Before you begin installation, check the site blueprints, riser diagrams, and
specifications for important information about the HandRreader’s location and
other systems that will connect to the HandReader. Look for any existing wall
preparations and wiring that other contractors may have installed for the
HandReaders.
HandReader
Placement
The recommended height for the HandReader platen is 40 inches (102 cm)
from the finished floor. The HandReader should be out of the path of pedestrian
and vehicular traffic, and convenient too, but not behind the door it is
controlling. Avoid placing the HandReader where users must cross the swing
path of the door. The HandReader should be in an area where it is not exposed
to excessive airborne dust, direct sunlight, water, or chemicals.
Figure 2-1: HandKey Placement Rules
For the following sections, Recognition Systems does not supply hardware
items such as door control relays, door locks, switches, relays, communications
or power wiring, or power supplies (a PS-110 or PS-220 power supply can be
purchased from Recognition Systems to power the HandReader).
40 in. (102 cm.)
NOTE

Planning an Installation
Page 10
Wiring Four basic circuits typically connect to the HandReader:
• Power Input
• Door Control Inputs and Outputs
• Networking and Communications
• Card Reader Input and Emulation Output
Power Input The HandReader requires 12 to 24 volts DC (600 mA) or 12 to 24 volts AC (7
watts). Power can be connected either to the power terminal pins 1 and 2 or
through barrel jack J12.
Terminal 1 and the center pin of power jack J12 are connected together.
Terminal 2 and the sleeve of power jack J12 are connected together.
A full-wave bridge rectifier input structure is used in the power supply of the
HandReader, making the polarity of terminals 1 and 2 irrelevant. Recognition
Systems recommends using terminal 1 for positive (+) voltage and terminal 2
for common (-) for consistency. If J12 is used to attach power with the optional
Recognition Systems wall-mount power supply, terminal 1 will reflect +13.8
VDC (unregulated) and terminal 2 will be power supply common.
Neither terminal 1 or terminal 2 is connected to the HandReader ground.
Do not connect a HandKey's power supply to a switched duplex outlet. The
HandKey must have a constant source of power for proper operation.
Battery
Backup
The HandReader uses an internal switching regulator to obtain internal
operational power. It accepts input voltages from 12 to 24 VDC or 12 to 24 VAC
at 50 to 60 Hz. An optional power-fail protection circuit board can be attached to
the main circuit board to provide and control battery backup. The design of the
internal power supply is such that any range of the above input voltages may be
used and still provide proper battery charge voltage and battery backup
operation. Switch-over to battery power is automatic and occurs when the input
voltage falls to approximately 10.5 volts. At that time the internal battery charger
is disabled to save power and uninterrupted operation continues on battery
power.
When input power is restored, the HandReader switches off of battery operation
and the battery charger is re-enabled to recharge the battery. Battery charge
voltage is set at approximately 13.65 volts, and battery charge current is limited
to approximately 50 mA. A fully discharged battery requires approximately 12
hours of charge to fully recover.
Additional options installed and specific configurations within the HandReader
make it difficult to predict precisely how long battery support will last, but in
NOTE
NOTE
NOTE

HandKey II Manual
Page 11
general two hours of battery operation can be expected. While operating on
battery backup due to loss of main input power, the battery output voltage is
constantly monitored by internal circuitry. If the battery voltage reaches
approximately 9.5 volts the HandReader automatically shuts down. This is done
to prevent full exhaustion of the battery. A yellow indicator on the top panel
illuminates to indicate that the HandReader is running off of battery power. This
indicator extinguishes when main input power is restored.
Shunt J7 which is located immediately in front of the DIP switches on the main
logic board (see Figure 5-1 on page 25) enables or disables battery operation on
those HandReaders equipped with optional battery backup. If a HandReader
does not have the optional battery backup package installed, J7 is not used. On
HandReaders equipped with the battery backup option, J7 allows service
personnel a mechanism for disabling battery backup operation before removal of
main input power. To fully power down a HandReader equipped with battery
backup, remove or reposition shunt J7 so that the two pins protruding up from
the main logic board are not connected to each other. This effectively opens the
circuit, removing the battery from any internal circuitry. Main input power can
then be removed and the HandReader will fully shut down. Once the HandReader
has fully shut down, shunt J7 may be reinstalled. The design of the power
supply is such that main input power must be reapplied to re-enable the battery
protection mechanism. If shunt J7 is not properly installed, the internal backup
battery will not be charged, and in the event of a main input power loss, the
HandReader will shut down.
The HandReader with the battery backup option uses a 12 volt 800 ma/hour
sealed lead acid battery to provide backup battery power. This battery is located
immediately inside the rear panel of the HandReader and plugs into jack J4 on
the keypad control circuit board located in the top of the chassis.
Earth Ground
and Shielding
Recognition Systems recommends that all HandReaders be grounded with a
solid, reliable earth ground connection. This connection establishes a common
ground return point used to protect internal semiconductor devices from
ElectroStatic Discharge (ESD) and from external signal line transients. It also
provides a common signal level reference point between externally networked
HandPunchs. Recognition Systems recommends that the earth ground source
be identified by a qualified electrician familiar with electrical codes as well as
wiring and grounding techniques.
This is an extremely important and often overlooked aspect of hard-wired serial
communication systems. If the sending and receiving stations do not agree on
the ground reference for the signal voltages, communication errors or a total
inability to communicate may be observed. If the voltages are very different, it is
even possible to damage the units.

Planning an Installation
Page 12
The subject of grounding can be complicated, and the full circuit of a system,
including power supplies and often even the building line power wiring, must be
understood. It is strongly recommended that a qualified electrician or electrical
engineer familiar with this subject be consulted when designing the wiring of an
HGU network installation. Always adhere to any applicable electrical codes for
your area. Recognition Systems is not responsible for damage done to units due
to improper wiring.
Use any one of the following ground terminals to make the earth ground
connection: 4, 10, or 13. Do NOT use terminal 2 to establish the earth ground
connection; terminal 2 is not directly connected to ground.
Figure 2-2: Earth Ground Connection Terminals
There are two standard methods for providing earth grounding to HandKey
units:
• earth grounding all units (see figure 2-3 on page 13)
• carrying an earth ground to each unit (see figure 2-4 on page 14)
Earth ground all units when there is a good earth ground source near each unit
and/or when there are very long cable runs between units.
Carry an earth ground to each unit when there are no earth grounds convenient
to the unit and the unit’s power supply is floating.
NOTE
123456789101112131
4
1
2
3
4
5
6
7
8 9
10
11
12
13
14
SWITCH
INPUTS
OUTPUTS
CARD
READER
INPUT
REX SWITCH
DOOR SWITCH
GROUND
AUX IN 1
GROUND
GROUND
AUX IN 2
+5 VDC OUTPUT
DATA/D0
CLOCK/D1
LOCK OR CLOCK
BELL OR DATA
AUXOUT 1
AUXOUT 2
EARTH GROUND CONNECTION PINS

HandKey II Manual
Page 13
Earth Ground
All Units
One method of establishing a ground reference is to connect each unit’s main
board ground to earth ground. Earth ground is found on the third pin on
standard AC line sockets (in the United States, this is the round one in the
middle). If the building wiring is functioning correctly, this should be a low-
impedance path to a true ground, which then serves as a common reference
point for the units.
If this method of grounding the units is used, it is not necessary to connect the
units in the network together with a ground line in the communication cable.
Indeed, doing so could create ground loops—large-area loops which provide a
good coupling to external magnetic fields—which may actually compound
communication problems. If a magnetic field, such as that from a lightning
strike, induces a voltage in the ground loop, it is possible for large currents to
flow around the loop, which can raise the ground potential of some units relative
to others. When the shield or the cable is connected to any ground in this
configuration, it should be connected only at one end to prevent the formation of
ground loops.
For systems with multiple units on a network, there will be a series of cables
daisy-chained between the units, and the shield of each leg of the network
should be connected to ground at only one end. It does not matter which end.
An example of this method of grounding is shown in Figure 2-3.
Figure 2-3: Communication Shielding With All Units Earth Grounded
All units are connected to the same earth ground. Each shield ground is
connected to only one unit, then interrupted to prevent the formation of ground
loops. Two sets of lines are wired as shown in Figure 2-3. It does not matter
significantly which unit’s GND is used for a particular shield, as long as the path
is broken from unit to unit.
Carry a
Ground Line to
Each Unit
The second method of establishing a ground reference in a system with floating
power supplies is to use the ground line in the RS-422 cable to establish a
common reference voltage for the communication signals. This line should be
connected to the negative power terminal on the data converter or the ground
Master
GND T+ T-
Remote 1
GND R+ R-
Remote 2
GND R+ R-
Connect the Cable
Shield to the
Master's Ground
Do Not Connect
the Cable Shield
at this End
Connect the
Cable Shield to
Remote 1's
Ground
Do Not Connect
the Cable Shield
at this End
Connect the
Cable Shield to
Remote 2's
Ground
Do Not Connect
the Cable Shield
at this End
To Nex
t
Remote

Planning an Installation
Page 14
line in the RS-232 port from the host PC system. It should then be carried to one
of the ground terminals on the back of each unit in the network. An example of
this method of grounding is shown in Figure 2-4.
Figure 2-4: Communication Shielding Carrying a Single Ground to Each Unit
If no earth ground is available at the units, this is the only possible method of
connecting the grounds. Even if an earth ground is available, depending on the
building’s power wiring and other environmental issues, this method may be
superior to the previous one, since it establishes the ground of each unit
independently of the building power lines. Local variations in grounds between
buildings, or from one point to another in a very large building, (perhaps due to
elevator motors or other large-current drawing machines) will have no effect on
the communication network if this configuration is used.
However, the power supplies must be truly floating, with no hidden paths back
to the high-voltage side of the transformers, or to earth ground. Since this is
difficult to achieve (there is always some parasitic capacitance between the
primary and secondary in any transformer), this method may be more
susceptible to high-frequency transients in the high-voltage side of the power
lines than the earth-grounded method.
The master unit’s ground establishes the ground for the entire system. The main
board ground points are connected to the shield ground at each unit, but are not
connected to earth ground. The ground point on the master can be the data
converter power supply negative terminal, or the GND pin on the RS-232 cable.
If the master is an HGU, its main board ground can be used. This configuration
should only be used if the power supplies to the units are truly floating,
otherwise ground loops will be created, and differences in local grounds may
cause large currents to flow through the cable shield.
Door Control
Output
The HandReader can operate a door in two different modes: lock output and card
reader emulation. The wiring for each mode is significantly different.
Master
GND T+ T-
Remote 1
GND R+ R-
Remote 2
GND R+ R-
Connect the Cable
Shield to the
Master's Ground
Connect Both Shields
to Remote 1 Ground
To Nex
t
Remote
Connect Both Shields
to Remote 2 Ground
Connect Shield
to Next Remote

HandKey II Manual
Page 15
Lock Output
Mode
In the lock output mode, the HandReader acts as an intelligent access reader
signaling a lock relay or controller to unlock the door. It also monitors the status
of the door. The decision to unlock the door is made by the HandReader after a
valid verification. Users may be assigned time restrictions to limit access during
specified hours or days.
Card Reader
Emulation
Mode
In card reader emulation mode, the HandReader outputs Wiegand (by default),
magnetic stripe, or some other card reader signal, typically to an access control
panel when a user successfully verifies. This mode makes integrating with
existing access control systems fast and simple. On retrofit applications, the
existing card reader wiring can be used to connect the HandReader to the panel
if it has AWG 22 or larger conductors and is in good condition.
The standard HandReader emulation format is for a 26-bit Wiegand card using
an 8-bit facility code. Other formats and card reader technology emulations are
available. Consult the factory for formats other than 26-bit Wiegand.
The ID number may be entered via the integrated keypad or an external card
reader.
• If the user enters the ID number from the keypad, the HandReader sends the
ID number to the access panel in the specified card format with a pre-
programmed facility code.
• If the ID number is entered via the card reader, the HandReader stores the
card data and then sends the data, unmodified, to the access panel when the
user successfully verifies.
Inputs and
Outputs
In addition to the Lock and Auxiliary Output and the Card Reader Emulation
Output, the HandReader has additional inputs and outputs for use with alarms
and other controllers.
• Three Programmable Auxiliary Outputs
• Door Monitor Switch Input
• Request to Exit Input
• Card Reader Input for Wiegand or Magnetic Stripe
• Two Auxiliary Inputs
An open collector transistor driver drives each one of these outputs. Open
collector refers to a transistor configuration capable of sinking current (by
“pulling down” one side of a load to ground) but not able to source current – e.g.
the transistor output is incapable of supplying current to drive up the output
voltage and must rely on an external voltage source to accomplish this.
NOTE

Planning an Installation
Page 16
HandReader outputs, when measured to ground, generally show around 4.5
volts when they are inactive and no load is attached. This voltage is developed by
a combination diode and series resistor pull up to the internal +5 volt supply of
the HandReader. These outputs are pulled up internally to insure that they
remain in a known condition if used to output Wiegand or magnetic stripe data
to some external device.
If one of the outputs is shorted to ground, there will be approximately 5 mA of
current flowing through the short, but no damage will occur. Because of the
open collector structure of the outputs, each output is free to float to whatever
external voltage is applied (when inactive). For example, if one side of a relay coil
is connected to an external +12 volt power source and the other side of the relay
coil is measured with respect to the ground of the external power source, the
measurement will be +12 volts.
If the ground of the external power source (+12 volt return) is tied to the ground
of the HandReader, and the free relay coil wire connected to the LOCK output,
the LOCK output pin will read +12 volts also (when inactive). This is because the
LOCK output is not active and free to “float” to whatever external voltage is
applied. When a hand is verified, the LOCK output becomes active and
essentially looks like a short to the HandReader ground. This “short” causes the
full +12 volts of the external power source to be placed across the relay coil,
energizing the relay. The ground of the external +12 volt source must be tied to
the HandReader ground to make a complete circuit path.
All HandReader outputs are rated at +24 volts DC maximum with a maximum
current draw of 100 mA. This means that it is acceptable to use up to a +24 volt
DC external power supply to energize external devices. Whatever external relay
is used should be chosen to match the external power supply voltage. For
example, if the external relay coil is rated at 15 volts, a 15 volt external power
supply should be used. In no case should the external voltage be higher than
+24 VDC.
Each HandReader has a protection mechanism built in to protect against voltage
transients (spikes) coming back into the HandReader from an external relay coil.
Transients from an “opening” or de-energizing relay coil can reach several
hundred volts. This protection is on all HandReader outputs and will limit
reverse spikes to approximately 28 volts to protect the open collector transistor
driver. HandReader outputs are NOT designed to switch AC voltages. DC
voltages MUST be used and the correct polarities MUST be maintained.
Relays or devices connected to the lock and auxiliary outputs must not exceed
0.1 A current draw.
NOTE

HandKey II Manual
Page 17
Networking and Communications
HandReader networking and communications can be configured in one of five
ways:
• as a stand-alone HandReader
• as a master or remote HandReader in a HandReader network
• as a remote HandReader in a HandReader network connected to a host PC
• as a remote network connected via optional Modem to host PC
• as a remote network connected via optional Ethernet to host PC
Stand-alone
HandReader
When installed as a stand-alone access control system there is no
communication wiring to other HandReaders or to a host computer. Power input
and control output wiring are all that are required. An RS-232 serial printer
output is available for event logging (refer to the Printer section on page 19).
Recognition Systems highly recommends using Backhand™ software to backup
template information stored in the HandReader.
Master or
Remote
HandReader
in a
HandReader
Network
Multiple HandReaders can be linked together in a HandReader network.
• Up to 32 HandReaders can be linked together on a 2-wire RS-485 or 4-wire
RS-422 network.
• Two twisted-pair, shielded, AWG 22 (or larger) wire should be used
(Recognition Systems recommends Belden 82732 or its equivalent).
• The wiring must be a “daisy chain” network from HandReader to
HandReader and must not exceed 4,000 feet (1220 meters) in total length.
The master/remote network requires user enrollment at the “master”
HandReader. The master HandReader distributes hand template data with ID
numbers and time restrictions (if any) to the other HandReaders in the network.
Users removed at the master HandReader are automatically removed from the
remote readers. A printer connected to the master HandReader will report
transactions from all HandReaders on the network.
Remote
HandReader
in a
HandReader
Network
Connected to
a Host PC
Multiple HandReaders can be linked to a personal computer (PC) for an
integrated access control network. Real time monitoring of door status and a
variety of alarm types can be done with Recognition Systems’ HandNet for
Windows™ (Recognition Systems model number HN-300) software. To run
HandNet for Windows™ the computer must be PC compatible, using a
Pentium™-166 or faster microprocessor and it must have a CD-ROM.
• The HandNet software can monitor over 1,000 HandReaders simultaneously.

Networking and Communications
Page 18
• An unlimited number of sites can be created with up to 32 HandReaders per
site.
• The HandReaders report all transactions to the PC. The HandNet software
records all transactions and displays a variety of reports generated from this
information.
• Template management is handled automatically.
• Users may enroll at any HandReader in the system. The PC collects the data
and distributes it to other HandReaders in the network.
• Access may be restricted by time and by HandReader via HandNet’s access
profiles and by the use of time zones.
Typically, HandReader networks link to a PC using an RS-422 connection. These
networks have the following requirements.
• Two twisted pair, shielded, AWG 22 wire or larger should be used
(Recognition Systems recommends Belden No. 82723 or equivalent cable).
• HandReaders must be wired together in a “daisy chain” network from
HandReader to HandReader and then to the host PC. The total length of the
wiring must not exceed 4,000 feet per network.
• The network requires an RS-422 to RS-232 converter (Recognition Systems
P/N DC-102) at the PC.
Recognition Systems’ optional HandNet for Windows™ software allows
programming of most of the remote HandReader setups from the computer.
However, each HandReader on the network requires the setting of an address.
HandReader addresses may be repeated, but only on different sites. Display
language, date format changes, and the communication mode must also be set
at the HandReader.
Remote
HandReader
Connected to
a Host PC via
Optional
Modem
An optional, internal “answer only” 14.4 bps modem is available for
HandReaders. This modem is designed for operation with United States phone
systems. Site wiring should conform to standard telephone wiring standards
and terminate at the HandReader with a standard RJ-11 modular phone jack.
Each HandReader with a modem includes a 6’ modem cable for the final
connection between the phone jack and the HandReader modem. Modem
HandReaders may be networked with up to 31 non-modem HandReaders using
RS-422 wiring. Refer to the Modem Application Note (available from
Recognition Systems) for detailed information.