ATS Accu-Time 3610 Series User manual

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36 61 10 0
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NV VI IR RO ON NM ME EN NT TA AL LL LY Y S
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Accu-Time Systems, Inc.
420 Somers Road, Ellington, CT 06029
Tel: [phone] Fax: [phone]
Web Site: www.accu-time.com

Copyright1998 Accu-Time Systems, Inc. Second printing 2002. Accu-Time is a registered trademark of Accu-
Time Systems, Inc. The material contained in this manual is subject to change. No part of this manual may be
reproduced or distributed in any form or by any means, or stored in any database or retrieval system, without Accu-
Time’s prior written permission. Accu-Time Systems, Inc. makes no warranty of any kind including, but not
limited to, any implied warrantees of merchantability, and fitness for a particular purpose in regard to this manual.
All Rights Reserved. Printed in the USA.

3
MANU3610-01
ACCU-TIME

SERIES 3610
TABLE OF CONTENTS
Introduction 1
Features 2
Specifications 3
Installation 4
ACCU-RATEDiagnostics 9
Maintenance 14
Troubleshooting Guide 15
MANU3610-01(01)

1
MANU3610-01(01)
INTRODUCTION
The Accu-Time Series 3610 is a NEMA 4X rated environmentally protected, true “C” programmable Time and
Data Collection Terminal. The durable enclosure insures protection in an indoor/outdoor time and data collection
environment. The Series 3610 offers a large user memory base of 128K for file validation, local editing and
scheduling functions. Among the many features of the Series 3610 are:
Multi-Media: Can support most standard bar code formats including UPC, 128, 39, 2/5, I2/5 and more.
Flexibility: The Series 3610 can act as a stand-alone time station or as part of a local or wide area
network. The terminal can also interface with virtually any host hardware or software platform.
Custom Applications: Custom programs and programmable function keys can provide users with the
flexibility to create a variety of options.
Reliability: A Real Time Clock (RTC) provides 12 or 24-hour time formats with quartz precision. An
optional uninterruptible power supply (UPS) provides terminal operation for up to 4 hours during power
outages. Data storage will be preserved for up to 4 days with the internal memory backup system.
Durability: The NEMA 4X enclosure protects circuitry from environmental conditions such as splashing
water, windblown dust, and rain. The housing remains undamaged by the formation of ice and, in
addition, is corrosion-resistant. The NEMA 4X rating signifies a watertight and dust-tight seal. Optional
terminal heaters are available, which allows the device to withstand temperatures ranging from –25°to
110°Fahrenheit. (Normal operating temperature range without heater option(s) is 32°to 110°F.)
Versatility, Reliability and Affordability in a state-of-the-art ergonomically designed terminal and backed by the
ACCU-TEAM.

2
MANU3610-01
FEATURES
 Single or multi-clock environments on a variety of host platforms with application programs integrating the
ATS DATA TRAKERfamily of modules
 Molded fiberglass polyester, NEMA type 4X, sealed environmental housing for indoor/outdoor use
 128K Byte memory base (capacitor backed), optional 32K Byte “Flash” memory
 EIA Standard RS232 or RS485 compatible
 On-board ACCU-RATEterminal set-up and diagnostics package
 Custom keypad legends with software defined function keys
 Large 20 key tactile 4x5 matrix keypad
 4 line x 20 character liquid crystal backlit display
 Audible annunciator
 Visible/infrared bar code slot reader, externally mounted or integrated onto a mounting plate
 Dual DI/DO ports and an Auxiliary Serial Interface port
 Low voltage power source locally or remotely supplied
 Non-interruptible power source with on-board charger
 FCC part 15 Certified

3
MANU3610-01
SPECIFICATIONS
Display: 4 Line x 20 Character backlit super-twist LCD
Clock: 12 or 24 hour-format-USA or International (quartz precision)
Time stamp of data transactions
Indicators: Yellow Low Power Indicator, Red and Green programmable indicators
Memory: 128K Byte of capacitor backed memory
(i.e. 600-employee base-program dependent)
32K Byte of “Flash” memory (optional)
Programming: ATS DATA TRAKERmodules, “C” programming language or third party custom application
packages
Interface: EIA Standard RS232 or RS485 (2 or 4 wire)
Dual DI/DO port and Auxiliary Serial Interface port
Enclosure: Molded fiberglass polyester, sealed environmental housing for indoor/outdoor use
NEMA 4X approved
Power: +10 to +17VDC (+12VDC @ 250 milliamps Nominal)
Local, remote or centrally powered
Non-interruptible power source with charger (optional)
(Optional heater(s) will require additional power – consult factory)
Environment: Operation: 32°to 110°F (0°to 43°C)
Optional heater kits: -25°to 110°F (-32°to 43°C)
Certification: FCC part 15
Physical: 8.5” wide x 6.25” high x 10.5” deep; weight 8.6 pounds
(21.6 cm wide x 15.9 cm high x 26.7 cm deep; weight 3.9 kg)
Accessories: Integrated (via mounting plate)/External visible/infrared weather resistant Bar Code slot readers
Solid State or Dry Contact relay modules

4
MANU3610-01
INSTALLATION
GENERAL INSTALLATION GUIDELINES
Environment
The Series 3610 Time and Data Collection Terminal is a durable industrial-grade device, which will endure harsh
environments. The ATS terminal is designed to operate indoors and outdoors. The NEMA 4X enclosure serves as
a safeguard against splashing water, rain, windblown dust, and hose directed water. The Series 3610 may operate
with an internal heater element allowing functionality up to 110°and down to –10°Fahrenheit. With a second
heater option, the temperature range expands to –25°Fahrenheit.
The terminal should be mounted on a vibration free area. Select a location, which has adequate lighting and
accessibility to operate the terminal safely.
Operating parameters
The RS232 Series 3610 must be located no greater than fifty (50) wire-feet from the host computer. EIA standards
for RS232 protocol data transmission dictate this cable distance. Exceeding this requirement greatly increases the
chances for continual data re-transmission, which may never be acknowledged.
(Side View)
8.5in
Seal-tight Connector
for Cabling
Nylon Plug

5
MANU3610-01
INSTALLATION
The Series 3610 is an environmentally sealed device; therefore all cables supporting the peripheral devices,
communications and power sources must be inserted through the appropriate watertight connectors. Observance to
this requirement will ensure watertight integrity and protection against external elements.
 Mounting: The case and hinged front cover are made from durable fiberglass polyester. The sealed terminal
comes with four plastic mounting ears. These ears should be secured to the bottom underside of the enclosure
and extend out from the sides to allow for wall mounting. A special mounting plate is available if an
integrated reader is purchased.
 Cabling: A twisted pair or category 5 style round cable is required. Select the appropriate seal tight
connectors and remove the nylon plugs to accommodate data transmission and 12VDC power pack cable
assemblies. The cable is passed through the seal tight connector that is then tightened down over the cable.
One seal tight connector per cable is allotted (see diagram below). The supplied rubber tubing should be slid
over any cable if the seal tight connector does not clamp the cable securely. This should be done before
tightening the connector.
 Power: When terminal power is being supplied locally, insure that a conventional 110VAC-wall outlet,
220VAC in Europe and other areas, (check local electrical code requirements) is available to accept the Series
3610 power pack assembly. The outlet should be no further than four (4) feet from the terminal.
 Base: Locate a flat wall surface to accommodate the Series 3610. Typical mounting height is forty-eight
inches from floor to the terminal display (Compliant to the Americans with Disabilities Act). Observe OSHA
and/or local safety codes when operating tools during all phases of installation. Attach the four terminal
mounting ears (or mounting plate) to a flat wall surface.
For RS232 communication applications, one end of the communication cable terminates into the Series 3610
communication port while the other terminates into the host computer’s serial port via an ATS RS232
Communication Adapter. For remote powering, a Network Junction Box or Network Junction Box Jr. could be
used.
RS232 INSTALLATION
COMM ADAPTER
DB25-RJ45 W/PWR
TO HOST
ATS
POWER
SUPPLY
ACCU-TIME SYSTEMS
EL LI NGT ON, CT
LOW
POWER
INVALID VALID
12 3
456
789
0
CLEAR ENTER
F1
F2
F3
F4
F5
F6
F7
F8
External
Reader
Mounting
NOTE: Pinouts are referenced to the terminal
Pin # Description
1
2
3
4
5
6
7
8
Earth Ground
Receive
Transmit
N/C
N/C
Ground
+VDC
Ground
Reader Port
Mounting Plate
Assembly

6
MANU3610-01
For RS485 Communication applications, ATSrecommends using a round data transmission cable that adheres to
the following specifications:
Five conductor shielded 24-gage wire with a drain.
The impedance of the cable should be 100 Ohms.
The capacitance should be 12 pico-farads per foot.
The jacket of the cable is typically PVC material.
Note: If the host is not equipped with an RS485 port, an ATSRS232/485 Converter with a 12-volt power pack
assembly will convert the terminal communication lines to RS232 levels. The host output of the RS232/485
Converter plugs directly into the ATSRS232 Communication Adapter.
RS485 allows for the Series 3610 to be used in multi-dropped networks. Thirty-two (32) terminals can be
supported on a single host communication port. The use of ATSSeries 1000 Network Controllers allows up to
five hundred and twelve (512) terminals on a single host communication port.
12 VDC
POWER
SUPPLY
MULTI-CLOCK - RS485 INSTALLATION
COMM ADAPTER
DB25-RJ45 W/PWR
TO HOST
NETWORK CONTINUED
RS-232 TO
RS-485
CONVERTER
ACCU-TI ME SYSTEMS
ELLI NGT ON, CT
LOW
POWER
INVALID VALID
12 3
456
789
0
CLEAR ENTER
F1
F2
F3
F4
F5
F6
F7
F8
ATS
POWER
SUPPLY
External
Reader
Mounting
ACCU-TI ME SYSTEMS
ELLI NGT ON, CT
LOW
POWER
INVALID VALID
12 3
456
789
0
CLEAR ENTER
F1
F2
F3
F4
F5
F6
F7
F8
ATS
POWER
SUPPLY
External
Reader
Mounting
Reader Port
NOTE: Pinouts are referenced to the terminal
Pin # Description
1
2
3
4
5
6
7
8
Earth Ground
DI -
DO +
DO -
DI +
Ground
+VDC
Ground
Reader Port
1234 5678
COMM
E.GND P. GND +VDC P. GND
JP1
DROP 2 DROP 3
DC POWER
E.GN D
123
45678
COMM
E.GND P. GND +VDC P. GND
1234 5 678
COMM
E.GND P. GND +VDC P. GND
DROP 1 DROP 4
NC NO NC NO
JP2 JP3 JP4
Trunk Wire
Network Cabling
Mounting plate
assembly

7
MANU3610-01
Terminal Cabling
Select and remove the seal tight connector(s) and corresponding nylon plug(s) located on the outside of the
housing. Remove the hinged cover and pass the data cable through the appropriate seal tight connector. Secure the
data cable to the interface board in the base of the Series 3610 terminal (Figure 2). Tighten the seal tight connector
down over the cable. Attach the output of the 12VDC power pack assembly (if power is not combined within the
communication cable) into the power jack (PJ1) in the base of the Series 3610. The supplied rubber tubing should
be installed if the seal tight connectors do not properly secure either cable. Place the jumper, located at JP1 on the
I/O board, to the NC position (Figure 2). Plug the primary of the power pack assembly to a conventional wall
outlet.
With the terminal’s Use/Test switch in the Use mode (Figure 1), replace the enclosure’s hinged cover.
The Series 3610 will power-up and display the on-line default message. (Refer to the ATS SETUP MODE section
of this manual for terminal communication setup parameters.) Attach the remaining end of the data cable into the
host computer port. The Series 3610 is now ready for operation.
(Rear View)
6.25in
10.5in
Comm/Power Reader
Nylon Plug
Seal-tight
Connectors

8
MANU3610-01
RS232/458 Communication Cabling
Figure 1
Power LED
Power interface
Fuse
Battery interface
Aux Port
Host Port
RS232 or 485
Terminal Port
Inside of Hinged Cover
Test/Use Switch
Beeper
20 position
ribbon cable
connects the
two boards
Interface for 1 foot
RJ45 flat cable
DI/DO 1
DI/DO 2
TU
I/O board as seen through knockout
NC
NO
NC
NO
12345678
COMM
E.GND P.GND +VDC P.GND
JP1 JP2
DC POWER
RS232/485 Communication Board
J1 J2
Figure 2
If power is not supplied through the communication
cable, plug power into PJ1. Ensure that the jumper (JP1)
is placed in the NC position.
Screw down RS232 or RS485 communication
cable to terminal block.
One end of the 1 foot RJ45 flat cable terminates into J1
while the other plugs into the Host port pictured above
in Figure 1.
Located in base of terminal enclosure.
If power is supplied through communication means, the
jumper (JP1) should be placed to the NC position.
RESERVED
PJ1
9-Pin Laser
Connector

9
MANU3610-01
ACCU-RATE

SET-UP AND DIAGNOSTICS
POWER UP
To power up the Series 3610 a 12VDC source must be applied to the terminal power jack (PJ1 shown in Figure 2).
The Series 3610, with the Test/Use switch placed in the Use mode, beeps, executes a power up sequence and
displays the message “TERMINAL LOCKED”.
ACCESSING TEST MODE
To access the Test mode:
1) Unscrew and lift the hinged cover to fully access the terminal.
2) Locate the Test/Use switch on the underside of the hinged cover. Slide the switch into the Test position (away
from the ribbon cable). The Series 3610 displays “ATS TEST MODE”.
3) Replace the hinged cover.
4) By pressing the CLEAR key, the user can step through the selections.
*NOTE: Test mode may be exited at any time by placing the Test/Use switch back to the Use position and
pressing the CLEAR key.
SELECTIONS:
 ATS TEST MODE: Tests the keypad, display, memory, real time clock, or bar code reader.
 ATS SET-UP MODE: Configures the communication parameters—Baud Rate, Parity Bit, Terminal
Address, and Terminal Application Type.
 ATS NETWORK TEST: Performs a terminal to host communication loop-back test. Verifies
integrity of cabling.
 ATS BATTERY TEST: Checks terminal battery backup option.
 ATS DI-DO TEST: Checks the Digital Input/Digital Output port by performing a loop-back test.
 ATS RESTART MODE: Resets the terminal, clears all data from memory and performs a power-up
sequence.
 ATS AUX PORT TEST: Checks the auxiliary DI/DO and bi-directional serial auxiliary port.

10
MANU3610-01
ATS TEST MODE
ATS TEST MODE checks the functionality of the terminal Keypad, Memory, Real Time Clock, and Bar Code
reader.
The message “ATS TEST MODE” appears on the top line of the display. The 2nd line of the display indicates the
program (EPROM) number. To enter the TEST MODE, press the ENTER key. The following information
appears:
ATS TEST MODE (XXX) (YY)
- - - - - - - - - - - - - - - - - - - - - - - -
The display shows “ATS TEST MODE” on the top line followed by two sets of numbers. The first number
(XXX) indicates the amount of memory installed (in Kilobytes). The right most number (YY) indicates the
terminal Real Time Clock incrementing in seconds (00-59).
Testing the Keypad
At this time the user may test the keypad assembly. The hinged cover must be reattached to the enclosure for this
test to be performed. Each time a key is pressed the terminal will beep and the key value will appear on the 2nd line
of the display. Press the ENTER key. The message “KEY INPUT ACCEPTED” is displayed. Each time the
ENTER key is pressed an internal test of the terminal’s communication port is performed. If an error is detected
the message “COMM PORT FAIL” will display, the invalid light will flash and the negative acknowledgement
beeper tone will cycle. This message will continue until power is removed from the terminal. Refer to the
Troubleshooting Guide of this manual for adjustment.
Testing the Badge Reader
ATS TEST MODE accepts input from slot readers. To test the reader, simply swipe the applicable bar code badge.
The terminal beeps and displays the badge data.
To proceed to the ATS SETUP MODE press the CLEAR key.
ATS SETUP MODE
ATS setup mode allows the operator to configure the terminal for communications with the host computer. The
Series 3610 default parameters are set as follows:
Baud Rate 9600
Parity ODD
Address 01
Terminal Application Type A
To enter the ATS SETUP MODE, press the Enter key at the “ATS SETUP MODE” display prompt. (Prior to
pressing the ENTER key, the 2nd line of the display will indicate the current terminal setup values.)

11
MANU3610-01
Baud Rate
To change the terminal baud rate:
1. Press the CLEAR key to step through the baud rate choices:
19200
9600
4800
2400
1200
M1200 (Not applicable)
M2400 (Not applicable)
2. When the desired baud rate is displayed, press the ENTER key to store the value and advance to the next
parameter.
NOTE: No modem is installed, therefore, if the modem baud rate is selected, the modem self test will
automatically fail. Please select a non-modem baud rate.
Parity
To change the parity:
1. Press the CLEAR key to step through the parity choices:
ODD
EVEN
NONE
2. When the desired parity is displayed, press the ENTER key to store the value and advance to the next
parameter.
Address
To change the terminal address:
1. Press the CLEAR key to increment the address values from 01 to 32.
2. When the desired address is displayed, press the ENTER key to store the value and advance to the next
parameter.
Terminal Application Type
The Terminal Application Type is used as a delimiter by the host for routing application information to the
terminal. (Example: An access control terminal could have a different terminal type than a time and attendance
terminal.) This value is typically left at A.
To change the terminal application type:
1. Press the CLEAR key to increment the type from A to J.
2. When the desired type is displayed, press the ENTER key to store the value and advance to the ATS
NETWORK TEST.

12
MANU3610-01
ATS NETWORK TEST
ATS NETWORK TEST is a two-part test. The first allows the network wiring between the terminal and the host
to be checked for open connections or wiring errors. This test requires that the ATS RS232 Communication
Adapter, which is plugged into the host, be unplugged and pins 2 & 3 of the adapter jumped together (a metal paper
clip should do the trick). Secondly, a local test can be performed on the terminal communication circuitry. This
test will work for both RS232 and RS485 installations (RS485 installations require an ATS 232/485 Converter and
power supply). To enter NETWORK TEST, press the ENTER key at the “ATS NETWORK TEST” prompt.
The following message appears:
SWITCH TEST SWITCH
TO USE POSITION
Place the switch on the back of the terminal into the Use position. The Series 3610 performs a network test in
which the terminal sends data up to the host, via the network cabling. Since a temporary jumper was installed in the
ATS RS232 Communication Adapter, the data will be looped back to the terminal. The following should appear:
NETWORK TEST PASS
ENTER TO RETEST
To perform the local communication loop back, place the Test/Use switch back to the Test position and press the
ENTER key. The following message should appear:
NETWORK TEST PASS
ENTER TO RETEST
Remove the jumper from the RS232 Communication Adapter and secure it back into the host port. Press the
CLEAR key to advance to the next test.
ATS BATTERY TEST
The ATS BATTERY TEST checks the terminal battery backup option if installed. To enter this test, press the
ENTER key at the “ATS BATTERY TEST” prompt. The following message should appear:
BATTERY TEST PASS
ENTER TO RETEST
Note: If the battery backup option is not installed the battery test will fail.
Press the CLEAR key to advance to the ATS DI-DO TEST.
ATS DI-DO TEST
The ATS DI-DO TEST is a two-part test that checks the terminal DATA IN/DATA OUT port connection by
performing a loop back communication test on the port circuitry. To enter the ATS DI-DO TEST:
1. Press the ENTER key at the “ATS DI-DO TEST” prompt. The following message should appear:
SWITCH TEST SWITCH
TO USE POSITION
2. The enclosure must be opened to place the test switch into the Use position.
Since no loop back jumper is installed during this phase of testing the following message will appear:
DI-DO TESTING
DI-DO TEST FAILED
ENTER TO RETEST

13
MANU3610-01
3. Place the Test/Use switch into the Test position. This will provide the terminal with its own loop back
jumper. Re-assemble the enclosure and keypad assembly.
4. Press the ENTER key. The following message should appear:
DI-DO TEST PASSED
ENTER TO RETEST
5. Press the CLEAR key to advance to ATS RESTART MODE.
ATS RESTART MODE
The ATS RESTART MODE clears all transaction data and any download from memory. To restart the terminal:
1. Press the ENTER key to select the ATS RESTART MODE. The terminal displays:
PRESS ENTER TO CLEAR
ALL TRANSACTION DATA
2. Press the ENTER key. The terminal displays:
CLEAR FOR CYCLE TEST
(Note: Cycle test is for factory diagnostics only.)
ENTER FOR RESTART
3. Press the ENTER key. The terminal displays:
CLEARING MEMORY . . .
The green Valid LED will blink and the terminal will execute its power up sequence and return to the
beginning of the Test Mode.
ATS AUX PORT TEST
The ATS AUX PORT TEST will automatically fail because the required loop back jumpers are not installed. If
this test should need to be performed, contact factory for pin-out information.
To exit the Test Mode place the Test/Use switch in the Use position and press the CLEAR key. The terminal will
execute its power up sequence. The terminal displays: “TERMINAL LOCKED” and can now accept a host
download.
This completes the ACCU-RATE

test and set-up.
Downloading the Series 3610
The Series 3610 terminal, when used with a standard Time and Attendance “C” application, can be downloaded
with employee names, badge numbers, schedules, etc. These download commands and others are explained in the
Time and Attendance Labor Traker command set manual. For further information refer to this manual.

14
MANU3610-01
MAINTENANCE
The Series 3610 is a maintenance-free data collection device. The only required procedure is periodic cleaning of
the badge reader.
To clean the badge reader, swipe a pre-moistened (isopropyl alcohol) cleaning card through the reader several
times. Low usage readers should be cleaned monthly. High usage readers should be cleaned weekly.

15
MANU3610-01
TROUBLESHOOTING GUIDE
Problem: Terminal does not power up and none of the status LEDs are lit.
Possible cause: No DC power is applied
Solution: Ensure primary side of DC power pack assembly is plugged into to a live AC outlet. Ensure secondary
side of DC power pack assembly is plugged into the Time and Data Collection Terminal (DCT).
Solution: If remotely powered, check cable distance and any network power jumpers that may need repositioning.
Solution: Test the outlet by plugging in another appliance or check that the secondary supply is plugged into the
terminal.
Solution: If all else fails, replace the power pack assembly.
Problem: Yellow Low Power indicator is lit.
Possible cause: Low or no DC power. (Optional battery is now providing power.)
NOTE: The terminal will operate for approximately 4-hours with a fully charged battery when primary voltage
source is lost. After this, the terminal will power off. The yellow indicator light, located on the front of the
terminal, will illuminate prior to the terminal blanking out.
Solution: Check output of 12-volt DC power pack.
Solution: Check for proper AC outlet voltage.
Possible cause: Terminal does not go blank after unplugging the battery connector.
Solution: Unplug and replace the power pack assembly.
Problem: Terminal is not communicating with Host.
Possible cause: Host Test/Use switch is in the Test position.
Solution: Place the Test/Use switch in the Use position.
Possible cause: DCT to Host communication cable is defective or unplugged on either end.
Solution: Verify that the cable is tested, plugged in on the host side, and is correctly wired to the interface board in
the base of the 3610. (Ensure cable termination guidelines and lengths are observed.)
Solution: Ensure the application package is loaded and running on the host.
Possible cause: Communication parameters for the DCT do not match those of the Host.
Solution: Refer to the ACCU-RATEtest and diagnostics section for set-up directions.
Problem: DCT does not accept badge data.
Possible cause: Bar code badge is not manufactured to proper specification.
Solution: Refer to vendor’s and/or ATS specifications for manufacturing criteria.
Possible cause: Badge is being swiped in the wrong direction.

16
MANU3610-01
Solution: Ensure media faces to the right (away from keypad).
Possible cause: Badge reader needs cleaning.
Solution: Swipe a pre-moistened (isopropyl alcohol) cleaning card through the reader several times.
Possible cause: Badge number does not exist in validation file.
Solution: See supervisor
Note: If all solutions fail, try reading the badge in the ACCU-RATEtest mode.
Problem: Terminal does not accept keypad input.
Possible cause: Keyed data does not exist in validation file.
Solution: See supervisor
Possible cause: Keypad connector is unplugged.
Solution: Test keypad in the ACCU-RATEtest mode.
If all solutions have been explored and the problem still exists, contact the Accu-Time Product Service Department
at [phone] during normal working hours 9 AM to 5 PM—Monday through Friday. Prior to contacting
Accu-Time, please have available the serial number and, if possible, the configuration number of the product.
These numbers can be located on the terminal identification label.
NOTE: The DCT has no user serviceable parts. The Accu-Time terminal must be operated within the parameters
included in this manual. Any operation performed contrary to these parameters will void the warranty.

17
MANU3610-01
FCC Statement
This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try and correct the interference by one or more of the following measures:
 Reorient or relocate the receiving antenna.
 Increase the distance between the time clock and the receiver.
 Connect the equipment into an outlet on a circuit different from that which the receiver is connected.
FCC Warning: To assure continued FCC emission limit compliance, the user must use only the recommended
shielded interfacing cable when connecting to a host computer. Also, any unauthorized changes or modifications
to this equipment would void the user authority to operate this device.