Securitron DK-26BK, DK-26PBK, DK-26PSS, DK-26SS Installation Instructions

ASSA ABLOY, the global leader
in door opening solutions

MODEL DK-26 DIGITAL KEYPAD SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

Securitron Magnalock Corp. www.securitron.com
Tel [phone] [e-mail]

© Copyright, 2011, all rights reserved PN# 500-16900
Rev. D, 12/11

Securitron Magnalock Corp. www.securitron.com ASSA ABLOY, the global leader

Tel [phone] [e-mail]

in door opening solutions

SECURITRON MODEL DK-26 DIGITAL KEYPAD

TABLE OF CONTENTS AND GUIDE TO THIS MANUAL

SECTION 1. DESCRIPTION -------------------------------------------------------------Page 2
SECTION 2. PHYSICAL INSTALLATION ----------------------------------------------Page 2
SECTION 3. WIRING --------------------------------------------------------------------Page 2
SECTION 3.1 POWER SELECTION -----------------------------------------------------Page 2
SECTION 3.2 CONNECTING THE KEYPAD CABLE TO THE CPU BOARD ----------Page 3
SECTION 3.3 POWER AND ELECTRIC LOCK WIRING-------------------------------Page 3
SECTION 3.3.1 AC LOCK WITH AC POWER ------------------------------------------Page 3
SECTION 3.3.2 DC LOCK WITH AC POWER ------------------------------------------Page 4
SECTION 3.3.3 DC LOCK WITH DC POWER ------------------------------------------Page 5
SECTION 3.4 USE OF THE “F” TERMINAL --------------------------------------------Page 6
SECTION 3.5 ADDING OTHER LOCK CONTROL SWITCHES------------------------Page 6
SECTION 3.6 THE REX FUNCTION-----------------------------------------------------Page 6
SECTION 4. PROGRAMMING -----------------------------------------------------------Page 8
SECTION 4.1 FIXED PROGRAMMING -------------------------------------------------Page 8
SECTION 4.2 KEYPAD CHANGEABLE PROGRAMMING------------------------------Page 9
SECTION 4.2.1 CHANGING THE USER AND PROG. CODE FROM KEYPAD -------Page 10
SECTION 4.2.2. ADDING MULTIPLE USER CODES ----------------------------------Page 10
SECTION 4.3 “MASTERKEY” USE OF THE HARD CODE -----------------------------Page 11
SECTION 4.4 SUBSET CODES ----------------------------------------------------------Page 11
SECTION 4.5 DELETING CODES -------------------------------------------------------Page 11
SECTION 4.6 SETTING THE TIME RANGE AND TOGGLE MODE -------------------Page 12
SECTION 5. CHANGING LED AND BEEPER OPERATION ---------------------------Page 12
SECTION 6 USE OF THE PROGRAMMABLE RELAY ----------------------------------Page 13
SECTION 6.1 DOORBELL FUNCTION --------------------------------------------------Page 13
SECTION 6.2 DURESS FUNCTION -----------------------------------------------------Page 13
SECTION 6.3 ANTI-TAMPER ALARM FUNCTION ------------------------------------Page 13
SECTION 6.4 DOOR PROP ALARM FUNCTION ---------------------------------------Page 14
SECTION 6.5 NIGHTLIGHT FUNCTION -----------------------------------------------Page 14
SECTION 7 ADDITIONAL HARD WIRED OPTIONS----------------------------------Page 14
SECTION 7.1 DUAL PAD OPERATION-------------------------------------------------Page 14
SECTION 7.2. HARD WIRED CODE DISABLING -------------------------------------Page 15
SECTION 7.3 ALARM SYSTEM SHUNTING--------------------------------------------Page 15
SECTION 7.4 ANTI-TAILGATING ------------------------------------------------------Page 16
SECTION 7.5 WIRING WITH TOUCH SENSE BAR AND MAGNALOCK

------------Page 16
APPENDIX A COMMAND SUMMARY----------------------------------------------------Page 17
APPENDIX B TROUBLE SHOOTING ----------------------------------------------------Page 17
MAGNACARE WARRANTY -----------------------------------------------Page 21

© Copyright, 2011, all rights reserved PN# 500-16900
Page 1 Rev. D, 12/11

SECURITRON MODEL DK-26 DIGITAL KEYPAD

INSTALLATION & OPERATING INSTRUCTIONS

1. DESCRIPTION

Securitron's DK-26 is a digital keypad system designed for medium/high security control of
electric locks. It consists of two components: the keypad and the CPU board conn ected by a 16
ft. cable. This allows the CPU board to be mounted within the protected area for higher
security. Tampering with or even destroying the keypad will not release the door. The rugged
stainless steel keypad may be mounted outdoors in any environment as it is fully weatherproof.
The keypad features true 10 digit operation (keys are not paired), three LED’s and a beeper.

2. PHYSICAL INSTALLATION
The keypad is normally surface mounted on the outside of the door to be controlled, and the

CPU Board is mounted inside the protected area safe from tampering.
To install the keypad, holes must be drilled for the 2 mounting screw s and the cable. A template

is not provided due to unavoidable variations on the cable exit of each keypad. Referring to
Figure 1, note that the top screw engages the slot at the top of the keypad. Once the top screw
has been installed, the location of the cable hole should be set roughly by positioning the keyp ad
and marking the cable hole point. Make sure the keypad is pulled down firmly on to the screw.
A 3/8" (10MM) hole is then drilled for the cable. After the cable has been pulle d through, the
final screw secures the keypad to the wall. Note final ly tha t a blank rectangular label has also
been furnished. This can be used to cover up the “BELL” legend if you don’t intend to utilize the
doorbell function.

FIG. 1: PHYSICAL INSTALLATION OF KEYPAD

(1) MOUNT SCREW TO ENGAGE SLOT AT
TOP OF KEYPAD
DRILL 1/8" (3MM) HOLE

MOUNTING

SURFACE

CABLE

(2) DRILL 3/8" (10MM) HOLE FOR CABLE

(3) SECURE BOTTOM WITH SECOND
SCREW. COVER SCREW HEAD WITH
"DK-26" LABEL.
DRILL 1/ 8 " (3 MM ) HOLE
NOTE: CHOOSE PHILIPS OR SPANNER
(TAMPER) HEAD SCREW

The CPU Board must be installed in a dry location free of extremes of temperature and humidity.
If the 16 ft., twelve conductor cable that is included is not of sufficient length, additional cabling
can be spliced by the installer. However, a long cable run can give rise to electronic noise
problems in certain environments. It should therefore be avoided where possible and in no case
should cable length exceed 100 ft. (30 meters).

3. WIRING

3.1 POWER SELECTION

The DK-26 operates on 12 to 24 volts AC or DC. Nearly all electric locks operate on voltage
within this range, so the power supply you would normally utilize to operate the electric lock will
also operate the DK-26. Power consumption of the DK-26 depends on voltage and is shown on
the following chart:

DK-26 POWER CONSUMPTION: 12 VOLTS 24 VOLTS

RELAYS, LED’S, + BEEPER ON (MAX) 160 mA 190 mA

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Be sure that your power source is of adequate capacity to operate both the lock and
DK-26. If the installation is "under-powered", the voltage of the supply will drop
rapidly when the lock is energized and this can crash the microprocessor.

3.2 CONNECTING THE KEYPAD CABLE TO THE CPU BOARD

There are 12 color coded wires in the keypad cable. Refer to Figure 3 and connect each wire to
the indicated terminal on the CPU Board. No other connections may be made to these terminals
(except if two keypads are used with one CPU board).

3.3 POWER AND ELECTRIC LOCK WIRING

The wiring scheme for electric lock control varies depending on the type of lock and the desired
control. The following sections provide drawings and explanations for different types. Note that
the DK-26 includes additional options which are covered in Sections 6 and 7.

Note installation of the MOV across the power wires to the lock. The MOV is the black disk
shaped component furnished loose with the DK-26. Its function is to absorb inductive kickback
from the lock’s coil. Without the MOV, this kickback voltage will arc over the relay contacts and
reduce the switching life of the relay. The arc also creates electronic noise which could cause
the microprocessor to malfunction. The MOV should be spliced into the lock power wires

as close to the lock as possible. Some DC electric locks have internal kickback protection
including all Securitron Magnalocks. You don’t need the MOV for these locks but if you are

not sure, it does no harm to install the MOV so long as the lock power is in the 12-24 volt range.

3.3.1 AC LOCK WITH AC POWER

A fail secure lock operating on AC is used. This i s generally an electric strike. “Fail secure”
means that the lock is secure when it is not powered. Power is applied to release the lock.
Referring to figure 2, select a transformer of the same output voltage as the lock (12 or 24
VAC). Make sure the capacity of the transformer is large enou gh to operate both the DK-26 and
the lock and that the transformer is UL listed under the UL 294 standard. The two
transformer secondary wires connect to the “AC inpu t” terminals as shown (there is no polarity
with AC). Power from one terminal then goes to the common of relay #1. The NO contact of
relay #1 will power the lock (releasing the door) when a correct code is entered. Note that AC
locks are normally all fail secure. If you come across a fail safe AC lock (secure when powered)
you would merely make the connection to the lock from the NC1 rather than NO1 terminal.

FIG. 2: AC LOCK - AC POWER WIRING

AC IN F DC IN /OUT

TRANSFORMER

12 OR 24 VAC

+

NC1 C1 NO1

MOV

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AC FAIL SECURE
LOCK

FIG. 3: OVERVIEW OF CPU BOARD

KEYPAD CABLE

12/24 AC POWER

FREE TERM INAL

12/24 DC NEGATIVE
12/24 DC POWER +

AC IN F DC IN/OUT

PS1

PS2

PS3

VIOLET

KEYS

VIO

BEIGE

ORANGE

PINK

KEYS

KEYS

KEYS

GRAY

BROWN

KEYS

KEYS

WHITE

BLACK

COMMON

BLUE

BEEPER

RED

RED LED

YELLOW

YEL LED

GREEN

GRN LED

KEYS

BLK GRY BRN BGE ORG PNK

WHT

GRN YEL RED BLU

MICROPROCESSOR

AUX.
SOCKET

SPDT

+

RELAY

DPDT RELAY

DC TERMINALS MA Y
ALSO BE USED AS
OUTPUT TO POWER
DC LOCK, IF AC
POWER IS SUPPLIED

PRGM
CODE

PUSH TO SET PROGRAM MODE

HARD

CODE

PUSH TO PROGRAM HARD CODE

SRC

COM. FOR REX, UCD, HCD TERMS

UCD HCD NCX CX

REX

REX INPUT (REMOT E R ELE ASE)

DISABLE HARD CODE

DISABLE ALL USER CO D ES

NOX

PROGRAM
RELAY

NC2 C2

NO2

LOCK CONTROL
RELAY CONTACTS

NC1 C1

NO1

CONTACTS

RELAY CONTACTS
RATED AT 5 AMPS

3.3.2 DC LOCK WITH AC POWER

For convenience and economy, most DC electric locks can be operated from an AC transformer
when the DK-26 is used. Select a transformer of the same voltage as the lock (12 or 24). The
CPU board converts the input AC to DC to operate the lock. Make sure the capacity of the
transformer is large enough to operate both the DK-26 and the lo ck and that the transformer

is UL listed under the UL 294 standard. The lock must accept full wave rectified DC
power. This is true of most DC locks (including Securitron’s Magnalocks) but some specialty

units require regulated DC power. You must operate those as described in the next Section.
Note finally that many DC lock installations call for battery backup. To achieve this, you must
employ a DC battery backup power supply and also follow the wiring description in Section

3.3.3.
DC locks come in “fail secure” and “fail safe” versions. A fail secure lock is secure when not

powered and a fail safe lock is secure when powered. All magnetic locks are fail safe. Figure
4 shows AC power being input to the AC terminals. The DC terminals furnish output power for

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the lock. DC locks operated in this way must not draw more than 2 Amps. The positive
DC terminal connects to the common of relay #1 and either the NO1 te rminal (if the lock is fail
secure) or the NC1 terminal (if the lock is fail safe) connects to the lo ck’s positive power input.
This is shown in dotted lines. You only connect one of these terminals. Note that some DC locks
are polarized and you must connect lock power correctly to positive and negative. Others are
not polarized and can be connected either way. Consult the lock instructions.

FIG. 4: DC LOCK - AC POWER WIRING

AC IN F DC IN /OUT

TRANSFORMER

12 OR 24 VAC

NOTE: MOV NO T REQUIRED IF

+

SECURITRON MAGNALOCK IS U SED

NC1 C1 NO1

DC FAIL SECURE

+

OR FAIL SAFE LOCK

IF FAIL SECURE

IF FAIL SAFE

MOV

3.3.3 DC LOCK WITH DC POWER

Select a power supply of the same voltage as the lock (12 o r 24). Make sure the capacity o f the
supply is large enough to operate both the DK-26 and the lock. The DK-26 does not require
regulated power but certain specialized electric locks do, so follow the rule of matching the
power supply to the requirements of the lock.

DC locks come in “fail secure” and “fail safe” versions. A fail secure lock is secure when not
powered and a fail safe lock is secure when powered. All magnetic locks are fail safe. Figure 5
shows correct wiring. The positive DC terminal connects to the common of relay #1 and either
the NO1 terminal (if the lock is fail secure) or the NC1 terminal (if the lock is fail sa fe) connects
to the lock’s positive power input. This is shown in dotted lines. You only connect one of these
two terminals. Note that some DC locks are polarized and you must be sure to con nect the lock
power wires correctly to positive and negative. Others are not polarized and it doesn’t matter
which way they are connected. Consult the lock instructions.

FIG 5: DC LOCK - DC POWER WIRING

AC IN F

POWER SUPPLY

DC IN /OUT

NOTE: MOV NO T REQUIRED IF

+

12 OR 24 VDC

DC POWER NEED NOT
BE REGULATED

+

NC1 C1 NO1

IF FAIL SAFE

SECURITRON MAGNALOCK IS USED

IF FAIL SECURE

DC FAIL SECURE

+

OR FAIL SAFE LOCK

MOV

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3.4 USE OF THE “F” TERMINAL

A

The F terminal on the power strip is not connected to
anything. It is a free terminal with either of two
intended uses. First, on some complicated
installations, a large number of wires (generally DC

TRANS­FORMER

FIRE ALA R M

AC IN F DC IN /OUT

CONTACTS

N

C

C

negative) may require termination. It can be
convenient to run a jumper from the DC- terminal to
the F terminal so that the large number of negative
returns can be spread on to the two terminals.
Second, some magnetic lock installations require
interface with NC contacts controlled by the fire alarm
system which will cut low voltage power

WHEN THE FIRE
ALARM CONTACTS
OPEN, ALL POWER

+

WILL BE RE MO VED
FROM THE DOOR

immediately releasing the magnetic lock for
safety. The connection to the fire alarm contacts is normally made in the power supply but if

you are using a plug in power supply, you’ll want to make the connection on the DK-26 CPU
board where you have terminals. Using the example of a plug in AC transformer. See the
drawing to the right.

3.5 ADDING OTHER LOCK CONTROL SWITCHES

The drawings in Section 3.3 are valid for simple installations w here the DK-26 is the only control
device that can release the electric lock. Often, however, additional control devices are called
for. The most common is some type of exit switch and this issue is covered in the next
Section. Sometimes other control switches are needed which are not appropriate for the REX
input as use of this input triggers the timed release capability of the DK-26.

A typical example would be a switch located centrally which would release the lock in response
to an intercom call for example. If the lock is fail safe, the switch will need to break power to
the lock and if it’s fail secure, the switch will need to send power to the lock. Figure 6 shows
how to add external contacts for non timed remote release of the lock for both lock types.

FIG. 6: ADDING EXTERNAL CONTACTS FOR FAIL SAFE AND FAIL SECURE LOCKS

AC IN

AC IN F

FOR NON-TIMED REMOTE
RELEASE OF FAIL SAFE
LOCK, PLACE NC C ONTACTS

F DC IN /OUT

IN CIRCUIT AS SHOWN

N

C

+

C

MOV

+

FAIL
SAFE
LOCK

NC1

C1

DC IN /OUT

+

FOR NON-TIMED RE MO TE
RELEASE OF FAIL SECURE
LOCK, PLACE NO CONTACTS
IN CIRCUIT AS SHOWN

O

N

C

NO1C1

MOV

+

FAIL
SECURE
LOCK

3.6 THE REX FUNCTION

Often, when the DK-26 is used, provision must be made to allow
people to use the door freely from the inside. If an electric strike
is used, exit may be accomplished by purely mechanical means
(turning the doorknob). If, on the other hand, a solenoid
operated or electromagnetic lock is used, free exit is only

SRC

REX

N N.O. SWITCH
CLOSING BETWEEN
"SRC" AND "REX"
CAUSES TIMED
RELEASE OF THE
DOOR.

possible if a switch on the inside releases the lock.
Connection of this switch or switches is most easily accomplished by using the DK-26's REX
input terminal (see Figure 2). REX stands for Request To Exit. When a normally open switch
activates the REX terminal, the DK-26's control relay will open the lock for the amount of time
programmed into the DK-26's timer. The result is the same as if the DK-26 was used from the
outside of the door. The REX terminal is activated by being connected to the SRC (voltage
source) terminal. It will also activate if +12 or +24V is input to the terminal from the
DK-26’s external power supply. The drawing to the right shows the simplest connection to
an external normally open momentary switch. Any number of additional switches could be
connected in parallel so that pressing any of them would activate the REX function.

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