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2358-065 Issued 7-19
Version E
SECTION 5 - TROUBLESHOOTING
Before beginning any troubleshooting, check all wiring and look for any loose connections. Double check your wiring! The
tracker expansion board in some applications may have over 20 wires connected directly to the board terminal strips. Be sure
that you have a good VOM (Volt-Ohm-Meter) to assist you when checking voltages and continuity.
Check the programming to be sure that the tracker expansion board is setup to operate as desired. If more that one tracker
expansion board is connected in the system, be sure the board addresses are set correctly.
Be sure that the tracker board is powered (16 VAC, 20 VA). The LEDs should be ON when power is applied to the tracker
expansion board. Standby battery may be connected to the tracker expansion board as shown in section 3.7.
The wiegand device (card reader, RF receiver, digital, etc.) must output data in the 26, 30, 31-bit wiegand format. The tracker expansion
board is not capable of receiving any other wiegand format.
The wiegand device must be connected to terminals #6-#7-#8-#9 as described in section 3.3 of this manual.
Two wiegand devices may be connected in parallel to the wiegand input on the tracker expansion board. Be aware that both devices will
appear to the access control system and the Remote Account Manager software as the same device.
Power for the wiegand devices is provided on terminals #8 (common) and #9 (+10 to +12 VDC). To check this power:
1. Set your VOM to the 50-volt DC range.
2. Connect the positive lead (red) to #9 and the negative lead (black) to #8. The meter should indicate +10 to +12 volts DC.
The tracker expansion board outputs data on terminals #27-#28-#29. When the tracker expansion board is sending data to the access control
system on these lines, the LED near these terminals will light. The voltage to operate these terminals comes from the access control system.
Normal voltage on these terminals is +4.5 to +5 volts DC. To check this voltage:
1. Set your VOM to the 50-volt DC range.
2. Connect the negative (black) lead to #27 and then check #28 and #29 with the positive (red) lead. The meter should indicate +4.5 to
+5 volts DC.
The data from the wiegand devices is inputed to the tracker expansion board on terminals #6 and #7. The normal voltage for these terminals
are +4.5 to + 5 volts DC. This can be checked by connecting the negative (black) lead of your meter to #8 and then checking for voltage with
the positive (red) lead on terminals #6 and #7.
When a wiegand device sends data to the tracker expansion board on terminals #6 and #7, the LED's associated with these terminals will
flash. These flashes are very fast and may be difficult to see. If a 26, 30, 31-bit wiegand input is received, the tracker expansion board
makes the lines on terminals #2 and #4 busy to prevent the gate operators from sending any transactions. It then checks for a busy signal on
terminal #10. If this pin is not busy, the tracker expansion board will make this pin busy itself and then wiegand out the data to the access
control system (If terminal #10 is busy, the tracker expansion board simply waits for this terminal to go un-busy and then sends the data).
After the tracker expansion board sends the data, it will wait for a reply from the access control system (The wiegand output LED will flash
when the data is sent to the access control system). Once the data is received by the access control system, the access control system will
make the decision to grant or deny access. If the decision is to deny access, the tracker expansion board will release the busy signal on
terminal #10, and will not activate it’s output relay. If the decision is to grant access, the access control system will activate its relay, which
causes the tracker expansion board to activate its output relay, and then releases the busy signal on terminal #10 allowing other tracker
expansion boards to communicate with the access control system.
The above operating sequence takes place in less than one second. In applications where the system is operating at its maximum (48 tracker
expansion boards), and in the unlikely event that all devices are activated at precisely the same moment in time, there could be a delay of a
few seconds for the last tracker expansion board to activate its output relay if the access control system decides to grant access to the person
using the device connected to this tracker expansion board.
5.1 Wiegand Device Data
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