Power and Battery LED Diagnostics/Flash codes
The two green LED’s that are labeled ‘POWER’ and ‘BATTERY’ are used to provide the status of the
12VDC input power and the Battery input voltage. (Chart Below)
NOTE: The POWER LED and BATTERY LED will flash in an alternating pattern if the input voltage drops too
low during a radio transmission and is an indication that the power supply being used is faulty or under
Testing Range and RF communications
Press and release the ‘Test’ button on one of the units and observe the six Signal Strength LEDs. If
any of the blue LED 1 through LED 6 lights up momentarily then the transmission between the two
units was successful. This establishes that the radio communications between the two units is operational and even with only the LED 1, there is adequate signal strength for proper function.
Wiegand data issues
If there is a problem with the Wiegand data getting through to the access panel, check the
1. Wire the Wiegand outputs (D0, D1, GND) from the Wiegand Controller Interface to the
2. Wire the Wiegand device to the Wiegand Remote Interface and ensure that the Wiegand
device is powered per the manufacturer’s specification.
3. Test that the Wiegand device and the Access Panel are configured and functioning properly
by connecting the Wiegand device directly to the Access Panel and then present a valid
credential to the Wiegand device. Verify that the credential is properly accepted by the Panel
and that the output relay on the panel is activating.
4. At both Controller and Remote units, without any wires connected, measure the voltage on
D0 and D1 relative to GND. This voltage should be between 3.2V to 3.5V on the Remote
Interface and 5.0V on the Controller Interface. These voltages can vary slightly when D0/D1
are connected to a Wiegand device or the Panel Wiegand input. If the voltage is too low,
external pullup resistors may be required. See Sure-Fi Application Note AN0135 for details on
wiring the pullup resistors.
Wiegand Cable Runs
- If the cable-run from the Wiegand Device to the Remote Interface is longer than 48 inches, it
is recommended to use a shielded cable. The shield wire should be connected to the Remote
Interface GND terminal.
- Do not route the Wiegand data cable next to high voltage power (115/220VAC) lines.
For the best performance between the Controller and Remote units
1. Power both units with their own dedicated power supply with a minimum of 1A @ 12VDC.
2. Route all cables and wiring away from the area near the Antenna.
3. Do not route cables and wiring over the top of the unit.
4. Mount both units oriented with the antenna at the top of the unit facing upwards.
5. Direct line of sight between the units will provide the best signal strength and data transmission.
6. Further range can be enabled by placing the unit at a higher locations, such as on a wall/pole.
7. Avoiding mounting either unit on metal surfaces or near metal objects, a clearance of at least 12 inches should be targeted.
Manually Testing Relays
Each Relay pair can be manually tested to verify operation. Using a jumper wire, short the Relay
input, such as R1 IN to GND, then monitor the Relay 1 OUTPUT on the bridge pair unit. This can be
done on all four Relay inputs: R1 IN, R2 IN, R3 IN, and R4 IN. Remember, if testing the relays on the
Remote Interface REV2 (DS004-REMOTE REV2), that the relays are solid state type and a ‘click’ will
not be heard when these two relays activate and so a meter or device would need to be connected
to verify relay activation.