True blue power USBT102 Series, M6430102-2, M6430102-3, M6430102-1, M6430102-4 Installation Manual And Operating Instructions

Mid-Continent Instrument Co., Inc.
dba Mid-Continent Instruments and Avionics

9400 E. 34th Street N.

Wichita, KS 67226

PH [phone]
FX [phone]

Revision 1, June 15, 2018

Installation Manual and Operating Instructions

USBT102 Series

Dual USB Charging Port

True Blue Power® a division of
Mid-Continent Instrument Co., Inc.

© Copyright 2018 Mid-Continent

Instrument Co., Inc.

Input Voltage:

10-32 VDC

Input Power:

24 watts max; 1.7 amps @ 14 VDC / 0.85 amps @ 28 VDC

Output Voltage:

5 VDC ±0.25 per port

Output Power:

2.1 amps max per port

Efficiency:

~85% nominal

Weight:

0.13 pounds

Dimensions: (not including connector)

1.50 inches wide X 1.50 inches high X 0.96 inches deep

Charging Ports Type:

USB Standard-A

Mounting:

Panel mount; rear or front

Part Number

Power Input

USB Connector

M6430102-1

Rear

Sealed

M6430102-2

Bottom

Sealed

M6430102-3

Rear

Lighted

M6430102-4

Bottom

Lighted

SECTION 1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The USBT102 Series Dual USB Charging Port is a power accessory that converts 10 to 32 volts of DC
electrical input from a power supply to standard 5V power for any electronic product that charges using a
USB connector. The USBT102 provides two Universal Serial Bus-A (USB-A) ports and can be rear
mounted or front mounted in a variety of locations throughout a vehicle. The unit has been rigorously
tested, providing confidence and convenience to be mounted in either the cabin or cockpit.

This Dual USB Charging Port is designed as a DCP (Dedicated Charging Port) to industry-standard
protocol per the USB Battery Charging 1.2 Compliance Plan. Early-generation or smaller consumer
electronics typically accept one (1.0) amp of power during charging. However, newer electronics, such as
the Apple iPad®, other tablets and larger devices can accept and, in some cases, require up to 2.1 amps
of power to charge and operate. As a high power DCP, the USBT102 can provide up to 2.1 amps of
power to charge any USB device, including the higher demand products. Unlike most dual USB chargers
which provide one (1.0) amp on one port and 2.1 amps on the second port, the USBT102 can provide 2.1
amps of power to both ports simultaneously. With features like short circuit protection, over-current
protection, low voltage shut-down and temperature monitoring, it can handle unforeseen conditions safely.

Small, compact and powerful, with plenty of installation flexibility, the USBT102 is an ideal choice when
selecting a highly useful and effective addition to any vehicle.

1.2 TECHNICAL SPECIFICATIONS

1.2.1 Electrical Attributes

Table 1.1

1.2.2 Physical Attributes

Table 1.2

1.2.3 Configurations

Table 1.3

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SECTION 2 PRE-INSTALLATION CONSIDERATIONS

2.1 COOLING

No external cooling is required. The unit will become warm when in use. This is normal and within
operational parameters. No special mounting considerations are required; however, mounting to a metal
surface can help dissipate any heat generated and extend the life of the product.

2.2 EQUIPMENT LOCATION

The USBT102 Dual USB Charging Port is designed for mounting flexibility, allowing for installation in the
cockpit or in the cabin. It is designed for panel mounting and can be installed in a rectangular or circular
rear mount configuration or, with an available installation kit, can be front mounted with a cosmetic cover
plate. An instrument mounting adapter bracket is also available to easily mount the unit in a standard 2.25
inch round instrument opening that may already exist in the cockpit panel. There are two versions to
choose from which allow the input connector to be located either on the rear of the unit or from the bottom.

The unit can be mounted in any orientation. Clearance should be provided for the mating connector which
may require an additional inch beyond the rear of the unit.

2.3 ROUTING OF CABLES

Avoid sharp bends in cabling and routing near control cables. Avoid close proximity and contact with
vehicle structures, equipment or other obstructions that could chafe wires during operation and cause
undesirable effects.

2.4 MODIFICATIONS

Each model USBT102 (part number M6430102-( )) has a nameplate that identifies the manufacturer, part

number, description, and technical specifications of the unit. It also includes the “MOD” or modification

number representing notable changes in the hardware design of the unit.

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a. Dual USB Charging Port

MCIA P/N M6430102-( )

b. Installation Manual

c. Connector Kit

i. Mating Connector, 2-pin
ii. Pins (4) (2 required, 2 spares)
iii. Screws, #4-40 x 1/4 flat-head (2)
iv. Screws, #4-40 x 5/16 flat-head (2)

Optional Equipment Available:

MCIA P/N 9017960

a. Circular Rear Mount Installation Kit

MCIA P/N 9017945

b. Front Mount Installation Kit

MCIA P/N 9017946

c. Instrument Mount Adapter Kit

MCIA P/N 9017947

d. Rear Mount Installation Kit

Equipment Not Provided:

MCIA P/N 9017957

a. Cable Harness Wire

See Section 3.3.1 for specifications

b. Circuit Breaker Recommendation

2 amp (1 amp may be sufficient for 28V system)

(as needed per system requirements)

Wire Gauge

Wire Length

20 AWG stranded wire

35 ft

22 AWG stranded wire

22 ft

24 AWG stranded wire

14 ft

SECTION 3 INSTALLATION PROCEDURES

3.1 GENERAL INFORMATION

This section contains interconnect diagrams, mounting dimensions and other information pertaining to the
installation of the USBT102 Dual USB Charging Port. After installation of cabling and before installation of
the equipment, ensure that power and ground are applied to the proper pins specified in Section 3.3.2, Pin
Assignment Information.

3.2 UNPACKING AND INSPECTING EQUIPMENT

When unpacking this equipment, make a visual inspection for evidence of any damage that may have
occurred during shipment. The following parts should be included:

3.3 CABLE HARNESS

Construct the cable harness following the instructions outlined below and per Figure 3.1. Refer
to Section 2: Pre-Installation Considerations, for routing precautions.

3.3.1 Wire Gauge Selection

Use of PTFE, ETFE, TFE, Teflon or Tefzel insulated wire is recommended.
The wire harness should utilize 20-24 AWG stranded wire. Refer to table 3.1 below.

Table 3.1 Wire Gauge and Length

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Pin A

Pin B

Pin B

Pin A

(

M6430102-1

,

-3

)

Note: Pins should be crimped using Molex Hand Crimp Tool 63819­0000 (Preferred), 63811-2800 (obsolete) or 11-01-0200 (obsolete).
See the Molex Hand Crimp Tool User Manual for crimp procedures.

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

WARNING:

Failure to install power and ground wires in the proper mating
connector locations will permanently damage the unit.

Once the cable harness is prepared, prior to connecting the
USBT102, activate the vehicle power bus and use a
multimeter to verify that vehicle power and ground is supplied
with appropriate voltage on the proper pins within the mating
harness.

(M6430102-2, -4)

3.4 MOUNTING

Figure 3.1

The USBT102 can be installed in one of five ways: Power Input

• rear mount, rectangular

• rear mount, circular *

• instrument mount *

• front mount, decorative bezel *

• rear mount, decorative bezel *

* Installation kit required. See Section 3.2, Optional Equipment Available for part number reference

Prepare the panel cutout as shown in Figures 3.3, 3.4, 3.5, 3.6, or 3.7 per the selected mounting option.

• For Rectangular Rear Mount, Circular Rear Mount and Instrument Mount Installations
countersinks in the panel for flat head screws are optional. However, flat head screws are
provided for flush appearance. For Front and Rear Decorative Bezel Installations, countersinks in
the panel are required.

• For Rear Mount Installations:

Mounting screws length MUST be between (PT + 0.150”) and (PT +0.260”). [PT = panel
thickness] Mounting screws provided with the unit are 0.24” and 0.31” (accommodates 0.020” to

0.160” PT).

For PT greater than 0.125, the USB connector will be below the surface of the panel (below flush).

• For Circular Rear Mount Installations:

Mounting screws length MUST be between (PT + 0.200”) and (PT + 0.375”). [PT = panel thickness]

Mounting screws provided with the Circular Rear Mount Install Kit are 0.438”.

• For Front Mount Installation: Maximum panel thickness is 0.25”.

• For Rear Mount Installation with Decorative Bezel: Panel thickness greater than 0.065 will cause

the USB connector to be below the surface of the bezel (below flush).

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Figure 3.2

USBT102 Outline Drawing

(-1 Version Shown)

3.5 INSTALLATION COMPLETION

Prior to operating the unit in the vehicle, 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 3.3

Rear Mount Installation

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Figure 3.4

Circular Rear Mount Installation

Figure 3.5

Instrument Mount Installation

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1.550±0.010

1.600±0.025

R.125

Figure 3.6

Step 4: place unit through

panel cutout. Tighten

pawl screws (x2)

Step 5: Peel adhesive backing, align pins on

rear of cover plate into holes on

mounting plate and press firmly

Step 1: install

grommets

Step 2: place screw through

mounting plate and

into pawl latch (x2)

Step 3: attach mounting

p

late to unit

Panel Cutout Detail

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SECTION 4 OPERATION

4.1 ELECTRICAL PERFORMANCE

The USBT102 Series Dual USB Charging Port converts a system’s (DC) input voltage within the range
specified to a 5V (DC) output. This output power is applied to a dual USB-A connector in accordance with
the USB Implementers Forum.

The USB D+ and D- data lines communicate with the USB portable device to tell the device it is a
dedicated charging port (DCP), capable of a higher current than a standard USB port. This allows the
USB portable device to draw up to 2.1 Amps.

The unit is designed as a DC-to-DC converter with a series switch on each output to regulate current
applied to that output. Each series switch independently reduces the output current to a safe level if the
USB portable device draws excess current, is shorted or has a fault.

If the temperature of the USBT102 becomes elevated due to a fault or excessive load, the device will
seamlessly communicate with the USB portable device to lower the charge current. This allows the device
to continue charging while the unit returns to a temperature within designed limits. When the temperature
returns to a safe level the USBT102 will automatically reestablish the higher charge current level with the
device and continue charging.

4.2 PROTECTIVE FEATURES

4.2.1 Short Circuit Protection

The USBT102 is capable of surviving a short circuit event without permanent damage. The
unit goes into an over-current condition so that the average current is significantly reduced
and the device is protected.

4.2.2 Over-Current Protection

The USBT102 monitors the current draw individually on each port. During an over-current
condition the voltage is reduced. If the voltage falls below 3.8 VDC the output is turned off for
a period of 12 seconds. The output is then checked for continued over-current conditions
every 16 milliseconds. This condition is referred to as a hiccup mode. The device stays in this
mode until the over-current condition is removed, then returns to normal operation.

4.2.3 Low Input Voltage Shutdown

If the input voltage applied to the USBT102 drops below 10 VDC the unit will shut down until
the applied voltage returns to a level within range.

4.2.4 Over-Temperature

When the temperature of the USBT102 becomes elevated, the unit communicates with the
USB portable device to reduce the charge current output (1 amp limit). When the temperature
returns to an acceptable level the unit automatically returns to a higher charge current as
required (up to 2.1 amps).

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