Securitron DK-XB - Manual (Page 3)

PN# 500-20300
Page 3 Rev. D, 06/11
your entry. The unit will respond with the standard two confirming red flashes for a correct
sequence (example-634514) or with a single long red flash (error) if you enter less than six
digits.
The list of 119 five digit codes will be automatically internally generated and the list will vary
with the four digit seed number that you have selected. Since there is a large number of
possible seeds, your list will be unique and good security will be maintained. Next, while still in
program mode, enter the command 64 and your list of codes will print out.
When you set up a new list of user codes in this way, any existing program code and hard code in
memory are deleted. The reason is to deal with the possibility that the program or hard code
will be identical to or a subset of one of the seed generated user codes. Therefore, after the
seed codes have been generated, stay in program mode and immediately attempt to re-program
your old program code (enter “000” followed by the old program code). If it is rejected (long
red flash), you will have to either select a new program code or, if you need to retain the old
program code, select a new seed number and produce a new set of 119 codes. The same
situation exists with the hard code. If you are using a hard code in your installation, it will be
erased. After your seed generated list of 119 codes has been established, exit program mode
(by pressing the bell key or waiting 30 seconds after the two confirming red flashes) and enter
hard program mode by pressing the hard code button on the CPU board (note slow flashing
yellow LED). Then, attempt to reenter your old hard code. If it is not accepted (single long red
flash), you will similarly have to compose a new hard code or return to program mode and select
another seed and generate a new code list.
4. PRINTER OPERATIONS
Connecting a printer to the DK-26 will permit you to keep a record of who has used the keypad
to enter the facility and when. The printer also logs other events such as exit, tamper and
duress and provides programming feedback which makes the expanded DK-26 easier to use.
4.1 INTERFACING THE PRINTER
To interface the printer to the expanded DK-26, make sure your printer is capable of being
connected via a serial RS-232 (rather than parallel) port. The reason that we employ serial
communication is to allow relatively long cable runs between the printer and the expansion
board (up to 200 ft.). Parallel connections must be quite short. You also must set the printer
for the correct type of serial data transmission:
 The Baud rate is 1200
 Characters are 8 bit, no parity with one stop bit (often called 8N1).
Consult the printer manual to determine how to set the printer for this type of data protocol.
4.2 CABLING ISSUES
The cable between the printer and the DK-26 expansion board will have a nine pin female
connector (DB-9F) on one end to connect to the socket in the DK-26 expansion board and a 25
pin male connector (DB-25M) to connect to the printer. Unfortunately, the computer industry
does not have a single hardware standard for serial communication so individual wires within
the cable will route differently with different model printers.
If you are in a position to purchase a new printer for the installation, Securitron has tried to
simplify this problem by stocking cables in different lengths which are set up to interface with
Okidata brand printers. If you are using another brand, Securitron’s “Okidata cable” may well
work with it but we are unable to track all the different possible printer brands and the cabling
convention is subject to change. Even though the cable connector to the expansion board has
nine wire positions, we use only three. We communicate with the Okidata printer as follows:
DK-26 Connector (9
pins)
Signal Name
Okidata Printer Connector (25
pins)
Pin #3 Serial Data Out Pin #3
Pin #5 Ground Pin #7
Pin #8 Data Terminal Ready Pin #20