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Functionality and features
NOTICE
The main plug connector features a reset button (located
next to pin 7).
INFORMATION
The pin assignment shown here can vary depending on the
model variant. Model variants TFX Internal Antenna and TFX
External Antenna devices do not have CAN2 signals.
INFORMATION
The analog inputs operate in a range of 0 VDC to 15 VDC.
Optionally, you can use the input as a digital input with a
maximum voltage of 36 VDC. The digital output switches to
supply voltage on terminal 30 and can only take a maximum
load of 500 mA. Provide an external safeguard if this limit
is not ensured by the external terminal 30 power supply.
Input terminal 15 detects "high" from a voltage of 5.5 V and
"low" below a voltage of 2.3 V.
3.2.2 GNSS antenna port
Use the GNSS antenna port to connect the device (model
TFX External Antenna) to an active antenna to receive
signals from GNSS satellites.
See the following overview for the pin assignment:
Table 7: GNSS antenna port pin information
GNSS antenna port (FAKRA, C-coded, blue, female)
Pin
Designation
1
Ground
2
Signal
The GNSS antenna port is supplied with a voltage of approx.
3.3 V and can supply active antennas with a maximum
of 40 mA of power. The port is short-circuit-resistant and
recognizes that an antenna is present from a power greater
than approx. 2 mA.
CAUTION!
!
Health hazards of radio-frequency energy.
Slight or medium injury.
Make sure the device is switched o during installation.
•
8
TFX INSTALLATION AND OPERATION MANUAL
Description
Signal ground / shielding
GNSS signal / supply voltage 3.3 V
3.2.3 Mobile radio antenna port
Use the mobile radio antenna port to connect the device
(model TFX External Antenna) to an antenna to receive
mobile radio signals.
See the following overview for the pin assignment:
Table 8: Mobile radio antenna port pin information
Mobile radio antenna port (FAKRA, D-coded, violet, female)
Pin
Designation
1
Ground
2
Signal
The antenna recognition function recognizes an antenna
when the antenna has an integrated diagnosis resistance
(10 kOhm).
!
Health hazards of radio-frequency energy.
Slight or medium injury.
Make sure the device is switched o during installation.
•
3.2.4 Micro-USB port
Use the micro-USB port to connect the device to a PC.
The micro-USB port is used for diagnoses, bootloader and
rmware updates.
For instructions on how to perform diagnoses, see chapter
Diagnosis via micro-USB port.
For instructions on how to update the bootloader and the
rmware, see chapter Firmware update.
See the following overview for the pin assignment:
Table 9: Micro-USB port pin information
Micro-USB port (type A)
Pin
Designation
1
VBUS
2
D-
6046279-001
March 2020
Description
Signal ground /
shielding
Mobile radio
CAUTION
Description
Input
Bidirectional
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