ADT Commercial Fire & Burglary Alarm System FOCUS 200 PLUS, Installation And Setup Manual

Page: 107 / 216

Section 10 – Access Control
10-21
Symptom Probable Cause Corrective Action
1 Dirt in reader keyway. 1 Clean using cleaning swab. Refer to vendor literature
for details.
2 Broken data line (“1” or
“0”). 2 Check wiring connections and correct or make repairs,
as required.
3 Top surface of reader is
shorted to metal portion of
lock. 3 Check and insulate top surface of lock, if shorted.
Red LED on Marlok
Keylok or Keyreader stays
bright red with key
removed.
4 Bad or damaged reader. 4 Replace Keylok or Keyreader.
1 ACIU is communicating
with control unit. 1 Construction card only works when ACIU is NOT
communicating with control unit. Either turn of control
unit or disconnect yellow and blue RS-485 bus wires
from TB1-3 and TB1-4.
2 Incorrect wiring between
ACIU and reader. 2 Check wiring to TB2-5 for opens, shorts, and grounds.
Insulate all unused wires.
3 Improper card orientation
or card swiping. 3 When swiping, card must be properly seated in slot,
and swiped straight through in the direction of the
arrows without lifting or twisting. The ADT logo should
face you, and the edge marked “This edge up” should be
up.
4 Bad or defective
construction card. 4 Card should not be cracked. A mag stripe card can be
damaged internally if it is subjected to a strong
magnetic field. Try a known good construction card.
Construction card
(Wiegand mag stripe or
proximity) does not work
(green LED does not light).
5 Bad or damaged reader. 5 Disconnect wire from TB2-5 and momentarily connect
it to TB2-1. If green LED does not light, replace reader.
1 ACIU is communicating
with control unit. 1 Construction key works only when ACIU is NOT
communicating with control unit. Either turn off
control unit or disconnect yellow and blue RS-485 bus
wires from TB1-3 and TB1-4.
2 Incorrect wiring between
ACIU and Keylok or
Keyreader. 2 Disconnect wire from TB2-5 and momentarily connect
it to TB2-1. If green LED does not light, replace reader.
3 Improper key insertion. 3 Marlok keys are read from the key tip to shank, but
only on insertion. Key must be inserted in a continuous
“fluid” motion without stopping, hesitating, or
reversing direction. If key is not read, remove and
reinsert. (The key may be inserted upside down with no
difference in reading.)
4 Bad or defective
construction key. 4 Key should not be cracked, bent, scratched, or dirty.
Try a known good construction key.
5 Dirt in reader is partially
blocking light path. 5 Clean reader keyhole using Marlok cleaning swab.
6 ACIU battery missing or
low. 6 Install a fully charged battery. Make sure Jumper E11
is out.
7 Bad or defective ACIU. 7 With all wires disconnected from TB3, check for 12VDC
across TB3-2 (+) and TB3-1 (-) for 10 seconds after
inserting construction key. If voltage is incorrect,
replace ACIU.
Marlok construction key
does not cause green LED
to light.
8 Bad or defective Keylok or
Keyreader. 8 Momentarily connect yellow wire to TB2-2 (5V). If LED
does not turn green, replace Keylok or Keyreader.
1 Green LED is receiving too
much current because
Jumper E11 on ACIU is
IN.
1 Remove Jumper E11. Marlok Construction key
causes LED on Keylok to
turn yellow.
2 Green LED is receiving too
much current because 330-
ohm resistor is not
installed.
2 Install 330-ohm, +/- 5%, 1-watt resistor in series with
yellow wire to TB3-2.