Sentex Sentex MINI-KEY User manual

Doc. 6001051
Doc. 6001051Doc. 6001051
Doc. 6001051
Rev C
Rev CRev C
Rev C
MINI
MINIMINI
MINI-
--
-KEY
KEYKEY
KEY
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONSINSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS

Page 1 of 8
Doc 6001051, Rev C
Important Notices
The Mini-Key system contains static sensitive parts: To avoid damage to the static sensitive parts, ground the
unit and yourself while handling the board(s).
Incorrect installation also invalidates the system's warranty. Take the time to read these instructions very
carefully before attempting to install this system.
Table Of Contents
SECTION PAGE NUMBER
Important Notices.................................................................................................................................1
1 – Basic Installation Hints and Rules ................................................................................................2
2 – Mounting the Cabinet.....................................................................................................................3
3 - Wiring...............................................................................................................................................4
4 – Installing Additional Features........................................................................................................6
Reference: Main Processor Board ......................................................................................................7
FCC Requirements ............................................................................................................................... 8

Page 2 of 8
Doc 6001051, Rev C
1 – Basic Installation Hints and Rules
GROUND THE SYSTEM AND YOURSELF THOROUGHLY: The Mini-Key system contains a number of static
sensitive components that can be damaged by static discharge during installation or regular use. This type of
damage is not covered under Sentex's warranty.
Ground the unit according to Figure 1. During the installation, ground shield wires to the ground screw as required.
Also, try to discharge any static before handling the circuit boards.
12 AWG Copper Wire
12 Feet Max. Distance
Ground
Electrical
Panel
Metallic
Cold-Water Pipe
Earth
Grounding Rod:
Drive 10 Feet into Earth.
Ground the unit
using of the
methods shown.
one
1051F6
Figure 1: Grounding the Unit
PROVIDE POWER FROM A DEDICATED SOURCE: The outlet into which you will plug the Sentex provided
transformer should each be wired to its own circuit breaker. This will prevent two problems:
1. Other equipment cannot introduce spikes, noise, surges, or dips into the power circuit that will affect the
Mini-Key system.
2. The Mini-Key's operation will not be affected if any other equipment develops a short circuit across the
power line.
DO NOT OVERLOAD THE TERMINAL BLOCKS: To
connect wires to a terminal block, remove the "head"
from the correct terminal and open the screws. Insert
the wire into the correct opening in the front and
tighten the screw until the wire is held snugly. Tug
slightly on the wire to ensure a secure connection.
After inserting all wires into the terminal block, plug it
back onto the pins designated for that block.
READ THE BOARD MARKINGS CAREFULLY: The
connection points are clearly marked on the boards.
Before making any connection, make sure you read
the board markings.
1051F3
1. Lift Head off
terminal pins.
2. Loosen screws.
3. Insert wires.
4. Tighten screws.
5. Replace head
on terminal pins.
WIRING
TERMINAL BLOCKS
Figure 2: Wiring Terminal Blocks

Page 3 of 8
Doc 6001051, Rev C
2 – Mounting the Cabinet
1. Remove the four (4) screws from the Mini-Key’s front panel with the provided hex tool. Carefully remove
the keypad and the boards from the cabinet and set aside onto a static-free surface.
Discharge any static that you may have built up before handling the board.
2. Use the knockout (back of enclosure) to run wires into the cabinet.
If the installation does not allow you to run the wires through the knockout, drill a 7/8” diameter hole
through the bottom of the enclosure to accommodate a 1/2" conduit. Be sure to securely connect the
conduit to the unit. Note: Wires run through the bottom of the enclosure will be more prone to tampering
or vandalism.
3. Securely mount the unit on the wall or pedestal. Mounting hardware is provided if you are using Sentex's
pedestal mount post. Do not put the keypad and the circuit board back into the cabinet until all connections
are made as described in the following sections.
Figure 3: Mini-Key Unit
Mini-Key Enclosure
Mini-Key Keypad
& Circuit Board
Knockout Mounting
Hole (4)
1051F2
Figure 4: Mini-Key Enclosure and Keypad
Front Panel
Screw (4)

Page 4 of 8
Doc 6001051, Rev C
3 - Wiring
SYSTEM POWER
Connect 2 conductor cable (for wire size, see Table 1
below) from TB4 at the Mini-Key unit to the 12VAC, 20
VA transformer supplied by Sentex (or 13.5 VDC power
supply that you provide).
Do not connect the power to the system until all
connections have been made to the system.
Please Note: If you are using a DC power supply, the
Mini-Key system will not trickle charge a battery, so the
DC power must be supplied by an uninterruptible power
supply (UPS).
1051F7
TB4
12V AC/DC
PWR IN
2 Conductor Cable
(See Table for Wire Size and Distance)
Figure 5: Power Connections
DISTANCE AC POWER WIRE SIZE DC POWER WIRE SIZE
30' and under 18 AWG 18 AWG
30'-75' 18 AWG 18 AWG
75'-150' 14 AWG 18 AWG
150'-250' 12 AWG 16 AWG
250'-500' 10 AWG 12 AWG
Table 1: Power Wire Distance
DOOR/GATE CONTROL
Connect the 2 conductor cable from your door strike and door strike power supply or from your gate operator to the
relay contacts in area TB1 as follows:
Door Strikes
TB1
COM1
COM2
NO1
NO2
2 / 18-22 AWG
1051F12
(DC)
+
(DC)
+
AC (24v max.) or DC
POWER SOURCE
DOOR STRIKE
(DC)
(DC)
Relay 1: Connect as Shown.
Relay 2: Connect wires
to COM2 and NO2
DC Powered Strikes
AC Powered Strikes
:
:
Use a 1N4001 Diode
or equiv.
Use a Siemens
S10K30 MOV
(Metal Oxide Varistor)
or equiv.
Figure 6: Normally Locked Strikes

Page 5 of 8
Doc 6001051, Rev C
Mag Locks
TB1
COM1
COM2
NC1
NC2
1051F8
2 / 18-22 AWG
+
+
DC POWER SOURCE
MAG LOCK
1N4001
Diode or
equiv.
Relay 1: Connect as Shown.
Relay 2: Connect wires
to COM2 and NC2
Figure 7: Mag Locks
WARNING: In order to prevent voltage spikes generated by magnetic lock or DC powered strikes from
being induced into the system, it is strongly recommended that a 1N4001 diode be installed
across the magnetic lock coil, so that the cathode of the diode (the end with the band) is
connected to the positive connection of the coil and the anode is connected to the negative
connection of the coil.
For Dry Contact Closure (Most Gate Operators)
1051F13
MOST GATE OPERATORS
(Dry Contact Closure)
TB1
COM1
COM2
NO1
NO2
2 / 18-24 AWG
Rela
y
1: Connect as Shown.
Relay 2: Connect wires
to COM2 and NO2
Figure 8: Dry Contact Closure Connections

Page 6 of 8
Doc 6001051, Rev C
4 – Installing Additional Features
AUX OPEN/REQUEST FOR ACCESS
Any device (e.g., exit button or Knox box) that provides a contact closure can be hooked up to the Mini-Key unit at:
 "EXIT1" and "COM" (TB3) to activate Relay 1 OR
 "EXIT2" and "COM" (TB3) to activate Relay 2
TB3
1051F11
2 / 18-24 AWG
Exit
Request
COMEXIT1
TB3
EXIT1 EXIT2
COM COM
Using two (2) Exit DevicesUsing one (1) Exit Device
Relay 1: Connect as Shown.
Relay 2: Connect wires
to EXIT2 and COM
Figure 9: Exit Request Connections
Use shielded cable and connect shield to the ground screw.
When a contact closure occurs, the system will activate the appropriate relay for the programmed period of time.
TIME CLOCK
You may install a timer or clock to the Mini-Key system to be used in conjunction with the time clock feature. This
timer or clock must provide a floating contact closure (a floating contact closure is a contact closure that is not
grounded). To install a timer or clock, refer to Figure 10.
TB3
2 / 18-24 AWG
COM
COM NO
TZONE
Timer: Must have
Floating Contact Closure
1051F10
Relay Contact
Figure 10: Installing a Timer
WARNING: Any clock or timer that is connected to the Mini-key system must provide a floating contact
closure. If the clock or time does not provide a floating contact closure, there is a very
strong chance that the clock will "burn-out" the circuit board, and may start a fire. Any use
of these devices will also void any Sentex warranty. If your clock or timer plugs directly
into an AC power source and it has an AC output terminal, it does not provide a floating
contact closure and should not be used with the Mini-Key system.

Page 7 of 8
Doc 6001051, Rev C
REMOTE KEYPAD
You may install a remote keypad to work with the Mini-Key. All information programmed into the Mini-Key will be the
same information read by the remote keypad (refer to the manual titled "PROGRAMMING AND USE
INSTRUCTIONS FOR THE MINI-KEY SYSTEM" for more information). Please Note: Run cables in metal conduit
(not PVC) and ground them. Do not run power and data wires in the same conduit. Do not connect the power to
the Mini-Key system until all connections have been made.
1. Install a remote keypad according to Figure 11.
2. Connect the shields to the ground screw on the Mini-Key.
7
6
5
4
3
2
1
Remote Keypad
Power Connections
Lighted
Remote Keypad
Data Connections
J2
2 / 18 AWG
Ground
Splice near
Mini-Key Unit
12V AC/DC
PWR IN
7 / 20-24 AWG
EXT KYPD
TB4
TB2
PINS 1 2 3 4 5 6 7
TB1
1051F9
Power Source
Figure 11: Installing a Remote Keypad
Reference: Main Processor Board
COM1
NC1
NO1
COM2
NC2
NO2
7
6
5
4
3
2
1
EXIT1, EXIT2, TZONE, COM
TB1 TB2
TB4 TB3
GROUND
12V AC/DC
PWR IN
1051F5
Figure 12: Mini-Key Main Processor Board

Page 8 of 8
Doc 6001051, Rev C
FCC Requirements
RADIO FREQUENCY
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 residential environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, 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 to correct the interference by one or
more of the following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and receiver.
 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
 Consult the dealer or an experienced radio/TV technician for help.
If necessary, the user should consult the dealer or an experienced radio/television technician for additional
suggestions. The user may find the following booklet prepared by the FCC helpful: “How to Identify and Resolve
Radio-Television Interface Problems”. This booklet is available from the United States Government Printing Office.
Washington, D.C., 20402. Stock No. 004-000-00345-4.
COPYRIGHT2002, ALL RIGHTS RESERVED
Visit us at www.sentexsystems.com

Doc. 6001050
Doc. 6001050Doc. 6001050
Doc. 6001050
Rev C
Rev CRev C
Rev C
MINIKEY
MINIKEYMINIKEY
MINIKEY
PROGRAMMING GUIDE
PROGRAMMING GUIDEPROGRAMMING GUIDE
PROGRAMMING GUIDE

Doc 6001050, Rev C
Page 2 of 5
IMPORTANT NOTES
The system contains static sensitive components that can be damaged if it is subjected to static discharge without being
properly grounded. It is important that any electronic based system is grounded properly as well as yourself when handling
the board(s).
TABLE OF CONTENTS
SECTION 1: PROGRAMMING OVERVIEW ..................................................................3
SECTION 2: INITIAL SYSTEM SETUP.......................................................................... 4
SECTION 3: ENTRY CODES......................................................................................... 5
COPYRIGHT2002, ALL RIGHTS RESERVED
This document is protected by copyright and may not be copied or adapted without the prior written consent of Sentex
Systems. This documentation contains information proprietary to Sentex and such information may not be distributed
without the prior written consent of Sentex. The software and firmware included in the Sentex product as they relate to this
documentation are also protected by copyright and contain information proprietary to Sentex.
www.sentexsystems.com

Doc 6001050, Rev C
Page 3 of 5
SECTION 1
PROGRAMMING OVERVIEW
1. All programming is done through the system's main keypad including sites that utilize the remote (second) keypad.
2. Once in the programming mode, the system will remain in this mode until told to exit to the "run" mode, or until 60
seconds pass without an entry on the keypad. If the system does not emit any beeps or tones, the keypad may be
blocked by the "strikes-and-out" feature. Wait 3 minutes and then try again.
Enter Programming Mode
• Press the pound key three times (###).
• Enter the six-digit password. The default is six zeroes (000000)
• The unit will emit two short beeps is now ready to accept programming instructions.
Exit Programming Mode
• Press the zero two times and the pound key once. (00#).
3. The MINIKEY system provides audio feedback to aid programming and operation. The following is a list of
responses and their meanings:
• 1 short beep:key was pressed
• 2 short beeps: programming step was valid
• 1 long beep: input was not valid
• 2 long beeps: duplicate entry code was entered or code not available to erase. Also used in normal
operation to indicate invalid entry due to timezone restrictions.
• 3 long beeps: memory is full
• 4 long beeps: unit has reset or is powering up
• 5 short beeps: exited the programming mode
• 10 short beeps: entry code is accepted and access is granted.
4. If a mistake was made in the middle of an entry, press "✱"to cancel current programming step.

Doc 6001050, Rev C
Page 4 of 5
SECTION 2
INITIAL SYSTEM SETUP
A. RELAY ACTIVATION TIMES
Set the amount of time the gate/relay will remain activated. The default setting is 10 seconds and the valid time
range for activation is 2-255 seconds.
Format: 1 + no. of seconds + # Main Relay
2 + no. of seconds + # Auxiliary Relay
Note: If this relay activates a gate operator with a momentary contact closure, set the relay activation
time for a short period (for example, 2 seconds). A longer activation time might cause the gate to
repeatedly open and close until the activation period has expired.
B. NUMBER OF DIGITS IN ENTRY CODES
If you decide to change the number of digits in the entry codes after the initial programming, you will need to
delete all of the entry codes before changing the code length (see section 7.C). Once the change in code length
has been made, the old codes will no longer be valid and cannot be erased.Default setting is for 4-digit entry
codes and the valid range is 4 or 5 digits
Format 8 + number of digits (1 digit) + #
Example 8 + 5 + # (sets the number of digits in entry codes to 5)
.
C. STRIKES-AND-OUT
Set how many incorrect entry codes may be entered within a 3 minute period before the system deactivates for a
period of 3 minutes. The "strike count" will be cleared when either a valid entry code is entered or if the keypad
has not had any input for 60 seconds since the last keystroke. When the "strike count" has been reached, all
keypad input will be ignored, including access to the programming mode.
Format 3 + number of incorrect codes (up to 2 digits) + #
Example 3 + 3 + # (sets strikes-and-out to 3).
Notes Valid range is 0 to 10.
• Default setting is 5.
• To disable the strikes-and-out enter zero (0).
D. CHANGE THE PASSWORD
Ensure that the password required to enter the programming mode is known only by authorized personnel. Make
sure to write down the new password so you can re-enter programming at a later date.
Format 9 + password (6 digits) + #
Example 9 + 123456 + #
(If the unit responds with two short beeps, the number that you entered was accepted)
E. VERIFY THE PASSWORD
Verify the password entry to ensure proper setting. If the password entered is correct, two short beeps will be
emitted from the system. If it is the incorrect code, the system will emit one long beep.
If the unit responds with an error tone, do not exit programming. The number that you entered does not match
the password. Repeat steps D and E for proper password setting
Format 4 + password (6 digits) + #

Doc 6001050, Rev C
Page 5 of 5
SECTION 3
ENTRY CODES
The programming sequences described in this section define which entry codes can gain access. Keep track of what entry
codes you have entered into the system and to whom they have been assigned. This will allow you to void a code to
prevent future access to the building or complex. The MINIKEY has a capacity for 500 entry codes.
The MINIKEY system supports an input from an external time clock. This feature provides the ability to restrict certain
entry codes from gaining access during a specified time. If you want an entry code to be restricted during the specified
time, you will enter a "1" for the time clock code. If you do not want an entry code to be restricted, you will enter a "0" for
the time clock code. Consult the installing dealer for information if this an option required but not implemented.
Entry codes are defaulted to 4 digits long and a range from 0000-9999. Valid 5 digit code range is 00000 to 99999.
A. ENTER AN ENTRY CODE
Format 5 + entry code (4 or 5 digits) + relay code (1 digit) + time clock code (1 digit) + #
Example 5 + 6666 + 1 + 0 + #
(sets code 6666 to activate relay 1 for the activation time regardless of clock input.
5 + 2543 + 3 + 1 + #
(sets code 2543 to activate both relays for the activation time and only when the time clock is
activated).
Relay codes: 1 - Cycle relay 1
2 - Cycle relay 2
3 - Cycles both relays
4 - Release both relays
5 - Toggle relay 1
6 - Toggle relay 2
7 - Toggle both relays
B. ERASE A SINGLE ENTRY CODE
Utilizing this step will remove individual codes from the MINIKEY system memory.
Format 6 + entry code (4 or 5 digits) + #
Example 6 + 1234 + # (deletes entry code 1234)
C. ERASE ALL ENTRY CODES
Utilizing this step will remove all entry codes from the MINIKEY system. Only perform this step to reset the system
memory to zero entry codes.
Format 7 + 101010 + #