SPECIAL PROGRAMMING SECTION:
PROGRAMMING KEYPAD-ONLY
STANDALONE ELECTROMECHANICAL LOCKS
I
t has been more than 15 years, since
I first wrote about standalone, single
door electromechanical locks. These
first locks were equipped with only a
keypad as the credential required for
gaining access. They were programmed
at the door; some could only program
one user at a time. They have differ-
ent types and numbers of batteries to
release the locking mechanism. No time,
no date, no audit trail or intranet connec-
tion for most of them. Only the master
code and/or programming code or
sometimes sub-masters or supervisors
codes and the user codes operate these
standalone electromechanical keypad
programmed and operated locks.
These self-contained single door
access control units are comprised of
two components; the electronics and
the modified leverset. The electronics
include the keypad, circuit board, LED’s,
battery pack and the locking/unlocking
mechanism. The modified leverset was
usually like a Storeroom function, keyed
outside and free egress. When the lock
was unlocked electronically, the outside
lever was rotated to gain access. Using
the mechanical override, rotating the
key in the lock cylinder would retract the
latch, the outside lever was usually not
unlocked.
A number of these locks are still in
daily use. Locksmiths will get service
calls to program or be asked for help in
order to program one or more of these
locks. The purpose of this article is to
provide general information and pro-
gramming information on these keypad
programmed locks.
Locks discussed are the Alarm Lock
DL2700, Arrow Revolution, Code Locks
CL5000, Kaba Ilco E-plex 4000, Marks
i-Que, Sargent KP, Schlage Cobra,
Securitron SABL™ and Yale eBoss. A
photo will be included for each lock as
not all locks have their name and model
number visible for easy identification.
Note: I have attempted to choose the
oldest lock available from each of these
manufacturers. Some of these locks
have been discontinued or are in the
process of being discontinued, but are
still in daily operation.
I have developed a chart for listing
the basic information for each manu-
facturer’s product. General information
will include ANSI/BHMA Grade, UL/
cUL Fire Rating, available lock configura-
tions, lever handing, key override option,
keypad layout and button construction.
Some of these features will help to
identify the product as well as provide
needed information for servicing and
re-installation.
For example, the Marks i-Que Metro
has a 16-button keypad. The buttons are
arranged in four rows, four buttons per
row. The 16 button layout is:
Top row 123i
Upper Row 456Q
Lower row 789u
Bottom row *0#e
The four buttons on the right side
vertical spell “iQue”. They can be used as
part of the PIN.
The next section of each chart will
include information on the Master,
Sub-Masters and “use” Codes. A “use”
code unlocks the lock and includes
User Codes, Emergency Codes and
Service (single use) Codes. The Emer-
gency Codes normally have an extended
length unlock time for those individu-
als who need more time to access the
lock. An Emergency Code can for some
manufacturers provide access when
the batteries are almost exhausted. The
Service Code is a one-time User Code
that erases itself immediately after use.
It is normally programmed like any User
Code. The Code section will include
the number of codes, their hierarchy,
digits per code, default codes, and user
groups.
For example, the Alarm Lock DL2700
has one Master Code that can be con-
figured from three to five digits. The
hierarchy has one Management Code
and the User Codes. The length of the
Master Code determines the Manage-
ment and User Codes/Service Code
lengths. The Master and Management
Codes program the lock as well as oper-
ate the lock.
The Service Code is a single “use”
code that is designed for service person-
nel, vendors, etc. For most locks, the
single “use” code is programmed and
disappears after it has been used. Only a
Master and/or the Submaster Code can
program the Service Code. The Code-
locks CL5000 Series can have up to ten
single “use” codes in addition to the
regular User Codes.
Battery life varies by lock. Each manu-
facturer uses the number and size of
batteries they believe will provide maxi-
mum cycle life. Most manufacturers
use “AA” batteries. One manufacturer
uses “C” batteries. Each manufacturer
provides the number of cycles. Even
though these cycle numbers may last
longer than one year’s operation, most
manufacturers recommend replacing
batteries every year to insure uninter-
rupted operation.
All of the manufacturers recommend
using alkaline batteries. Lithium batter-
ies are not recommended. Some lock
manufacturers have a two stage warn-
ing. For example, Securitron SABL low
battery warning begins with two short
beeps and flash of the LED’s at first key-
stroke. The second stage warning is two
short beeps and the LED flash at each
keystroke.
And finally, what might be the most
important programming set of instruc-
tions, the instructions for resetting the
lock when the master code is lost. We
have condensed the basic programming
operations; for detailed instructions, con-
tact the lock manufacturer.
by Jerry Levine
46 — LOCKSMITH LEDGER [11/10] www.locksmithledger.com
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