
Rev G, June 6, 2019 10 Manual Number 9017899
3.3.2 Pin Assignment Information
INPUT POWER:
Pin A (keyed) – Positive DC input +10 to 32 VDC power
Pin B – Negative DC input / ground
3.3.3 Harness Verification
Note:
The TA202 has built-in reverse polarity protection for the
power connector. If Pins A and B are swapped, the unit will not
be damaged, but will also not function.
Once the cable harness is prepared, prior to connecting the
TA202, activate the aircraft power bus and use a multimeter to
verify that aircraft power and ground is supplied with appropriate
voltage on the proper pins within the mating harness.
3.4 MOUNTING
The TA202 can be installed in one of five ways:
rear mount, rectangular
instrument mount
1 2 3
front mount, decorative cover plate
1 2 4
rear mount, decorative cover plate
1 4
rear mount, circular cover plate
1 3
1
Installation kit required. See Section 3.2, Optional Equipment Available for part
number reference
2
Dual port units only
3
Black anodized
4
Brushed aluminum, bare (appropriate for additional plating/finish)
Prepare the panel cutout as shown in Figures 3.4 thru 3.11 per the selected mounting option.
Countersinks shown in the panel cutouts for flat head screws are optional. However, flat head
screws are provided for flush appearance. For Rear Mount Cover Plate Installations, countersinks in
the panel are required.
For Rear Mount Installations:
Mounting screws length MUST be between (PT +0.150”) and (PT +0.210”). [PT = panel thickness]
Mounting screws provided with the unit are 0.24” and 0.31”. (accommodates 0.030” to 0.160” PT)
For PT greater than 0.125, the USB connector will be below the surface of the panel (below flush).
For Front Mount Installations: Minimum panel thickness is 0.04”. Maximum panel thickness is 0.20”.
For Rear Mount Installation with Cover Plate: Panel thickness greater than 0.065 will cause the USB
connector to be below the surface of the Cover Plate (below flush).
3.5 INSTALLATION COMPLETION
Prior to operating the unit in the aircraft, it is recommended to verify the output and functionality of the
unit. In order to prevent accidental damage to other systems, it is not recommended to attach the output
to other equipment prior to verification. Verify the output of the unit at the terminating end of the cable with
a multimeter to ensure proper voltage and polarity. Once verified, installation can be completed and
functionality should be checked.
Figure 3.1
Power Input
Pin B
(bottom input versions)
Pin
Pin A
(rear input versions)
Pin B