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TESTING AND TROUBLESHOOTING
1. Check the power.
Ensure that the red POWER LED is lit (Figure 9). If not, check
your power connections and/or source. Voltage reading
should be within the range of 9VDC – 18VDC.
2. Check for Receiver operation.
The SIGNAL LED (Figure 9) should be flickering continuously,
indicating that the RF receiver circuitry is operating.
3. Test the Transmitter/Receiver.
Press the transmitter button previously set in step 4, page 3,
within view of the receiver. If the DATA-yellow and
VALID-green LEDs do not light, review the Setting the
Switches and Connect Signal/Power Wires sections.
NOTE: If the DATA-yellow and VALID-green LEDs flash repeatedly
and simultaneously, the format settings may be incorrect (refer to
Output Code Format).
If reception of the transmitter's signal is significantly reduced,
there may be strong RF interference from other sources.
Common sources of interference include fluorescent lights,
neon signs, mercury vapor lamps, arc welders, and arcing
power lines. Interference due to lighting can be limited by
having an electrician wire a noise suppressor into the lamp,
light, or sign circuit.
NOTE: It may be required to press the transmitter button twice at
first use.
RECEIVER LED REFERENCE
(Figure 9)
SIGNAL – Red
This LED, when lit, indicates that the receiver has detected the
presence of RF energy. It is normal for this LED to flicker
continuously while the receiver is powered up.
DATA – Yellow
This LED indicates that the receiver recognizes the transmission
data as coming from a Chamberlain
technology.
VALID – Green
This LED indicates that the receiver is sending a Wiegand format
output to the access control system.
POWER – Red
This LED indicates that the receiver has power.
GRANTED – Green
This LED indicates that the access control system has validated
the transmitted code and has granted access.
4. Attach the front cover.
Attach front cover of receiver by turning screws clockwise
1/4 turn. Do not over tighten.
®
transmitter with Passport
Call your local power company if interference is due to arcing
power lines.
U1
C9
Y3
C2
1
14
U2
C3
1
F A C I L I T Y
14
U3
15
14
13
12
11
10
9
1
C4
U9
RP2
14
1
U4
SENTEX SYSTEMS
MADE
D1
Figure 9
4
C13
R1
Y2
L1
L3
J1
C9
C17
L2
C23
C14
C20
C18
C10
Y4
C11
E1
Y1
D11
C15
SIGNAL
C12
D12
C16 R5 C19 R4 U6
DATA
C29
C27
D13
R2
C25
VALID
R3
L4
C2
D9
R7
POWER
U7
CLOCK
R25
GRANTED
IN
D1
C28
U5
1
TP1
TP4
R8
C30
R12
DATA
C31
C5
IN
CO D E
J3
+5V
GND
FORMAT
3
Q2
TP2
2
R20
C32
1
R19
TP3
0
Q1
U12
3
BUTTON
2
D6
D7
D5
D4
1
D2
FFC
C7
C8
U8
C6
U10
D8
RP3
1
R13
1
RP1
D3
D3
R17 R16
R14
R15
D16
I N USA
D11
SIGNAL
D12
DATA
D13
VALID
D9
POWER
GRANTED
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