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Hardware setup
TX54 electrical rating
The TX54 device requires connection to a conditioned power system that meets these requirements:
Tolerance within maximum operating voltage range 9 VDC to 36 VDC.
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TX54 power connector
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specifications:
Wire size: 30-12 AWG
Wire type: copper wire only
Terminal blocks torque: 5-7 pounds per inch
For supply connections, use wires suitable for at least 85° C.
Power installation must be performed by a qualified electrician, following the National
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Electrical Code, ANSI/NFPA 70 and Canadian Electrical Code, Part I, CSA C22.1.
There must be a disconnect device in front of TX54 devices to protect maintenance workers.
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Use a 20 A circuit-breaker as the disconnect device.
Before doing any maintenance, the maintenance worker must use caution and close the
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general power supply.
TX54 power connector
The TX54 has a power connector located on the back of the device:
Pin
1
2
3
See
Connect power
Battery power management
The TX54 power input range is 9-36 VDC. In addition, the TX54 includes a battery saver function. The
TX54 Power Management Unit (PMU) continuously monitors the power input (Vin) and applies the
predefined 10.5 V "turn-off" and 11.5 V "turn-on" supply voltage levels. Once low supply voltage is
detected during operation, the PMU applies the following timeout values before powering off the
TX54:
If 9 V < Vin < 10.5 V "turn-off" voltage, the unit powers off after 360 seconds.
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If 6 V < Vin < 9 V, the unit powers off after 30 seconds.
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If Vin < 6 V, the unit powers off after 3 seconds.
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Once the TX54 is powered off, it will power on again only if Vin > 11.5 V "turn-on" voltage.
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TX54 User Guide
on the front of the device requires wiring terminals with the following
Connection
Ignition sensor
Positive
Negative
for information on connecting power to the device.
Connect power
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