MID OF TRAIN UNIT

1 . A mid of train (MOT) mobile unit for use with a train, the MOT mobile unit comprising:

a first hose for mounting the MOT mobile unit between first and second railway cars of the train located near a middle of the train;

a first radio for communications with an end of train (EOT) unit disposed on one end of the train; and

a second radio for communications with a head of train (HOT) unit disposed on other end of the train, wherein with the first and second radios jointly the MOT mobile unit provides a repeater device functionality for communicating between the EOT unit and the HOT unit.

2 . The MOT mobile unit of claim 1 , wherein the first hose is a pass-through T-hose such that the MOT mobile unit is user configurable with the pass-through t-hose to operate as the MOT mobile unit instead of the EOT unit.

3 . The MOT mobile unit of claim 1 , wherein the MOT mobile unit is configured to receive a power from a brake line of the train that runs a length of the train, wherein the power is derived from a compressed air in the brake line by means of an air-powered generator that recharges a battery.

4 . The MOT mobile unit of claim 3 , wherein the MOT mobile unit is configured to attach onto a car set near a middle of the length of the train.

5 . The MOT mobile unit of claim 4 , further comprising:

a clamping mechanism that provides a mechanical interface to removably attach to the train onto the car set at a coupler, a knuckle, a frame, or a ladder.

6 . The MOT mobile unit of claim 4 , further comprising:

a telescopic antenna for the second radio to reach above the car set to aid in a communication between the HOT unit and the EOT unit.

7 . The MOT mobile unit of claim 1 , further comprising:

a second hose such that the MOT mobile unit is user configurable with the second hose to operate as the EOT unit instead of the MOT mobile unit.

8 . The MOT mobile unit of claim 7 , wherein the second hose is a single end-hose to couple to a last car of the train such as to operate the MOT mobile unit as the EOT unit.

9 . The MOT mobile unit of claim 1 , further comprising:

a cellular modem for remote reporting to a central server;

a Global Positioning System (GPS) receiver;

a control electronics for logic control of all device functionality of the MOT mobile unit;

an emergency exhaust valve for emergency activation; and

a high visibility marker to provide a flashing light indication of an end of the train.

10 . The MOT mobile unit of claim 9 , further comprising:

a Wi-Fi transceiver for local and remote user interface;

a Bluetooth low-energy transceiver for local user interface; and

a USB/Serial interface for local user interface.

11 . A mid of train (MOT) mobile unit for use with a train, the MOT mobile unit comprising:

a pass-through T-hose for mounting the MOT mobile unit between first and second railway cars of the train located near a middle of the train such that the MOT mobile unit is user configurable with the pass-through t-hose to operate as the MOT mobile unit instead of an end of train (EOT) unit;

a single end-hose to couple to a last car of the train such that the MOT mobile unit is user configurable with the single end-hose to operate as the EOT unit instead of the MOT mobile unit;

a first radio for communications with an end of train (EOT) unit disposed on one end of the train; and

a second radio for communications with a head of train (HOT) unit disposed on other end of the train, wherein with the first and second radios jointly the MOT mobile unit provides a repeater device functionality for communicating between the EOT unit and the HOT unit.

12 . The MOT mobile unit of claim 11 , wherein the MOT mobile unit is configured to receive a power from a brake line of the train that runs a length of the train, wherein the power is derived from a compressed air in the brake line by means of an air-powered generator that recharges a battery.

13 . The MOT mobile unit of claim 12 , wherein the MOT mobile unit is configured to attach onto a car set near a middle of the length of the train.

14 . The MOT mobile unit of claim 13 , further comprising:

a clamping mechanism that provides a mechanical interface to removably attach to the train onto the car set at a coupler, a knuckle, a frame, or a ladder.

15 . The MOT mobile unit of claim 14 , further comprising:

a telescopic antenna for the second radio to reach above the car set to aid in a communication between the HOT unit and the EOT unit.

16 . A method of installing a mid of train (MOT) mobile unit for a train, the method comprising:

initiating pre-departure activities of the train;

selecting an end of train (EOT) unit and the MOT mobile unit to use on the train or selecting first and second mid of train (MOT) mobile units that are reconfigurable to either the EOT or the MOT mobile unit; and

installing either the EOT unit at a rear of the train and installing the MOT mobile unit near a midpoint of the train or configuring the first MOT mobile unit as the EOT unit and configuring the second MOT mobile unit as the MOT mobile unit.

17 . The method of claim 16 , further comprising:

fitting a single end-hose on the EOT unit and fitting a pass-trough t-hose on the MOT mobile unit before installing either the EOT unit at a rear of the train and installing the MOT mobile unit near a midpoint of the train; and

programming an EOT ID into the MOT mobile unit using a local or a remote user interface;

arming the EOT unit to a head of train (HOT) unit; and

completing pre-departure tests for the train.

18 . The method of claim 16 , further comprising:

fitting a single end-hose on the EOT unit and fitting a pass-trough t-hose on the MOT mobile unit before installing either the EOT unit at a rear of the train and installing the MOT mobile unit near a midpoint of the train; and

programming an EOT ID into the MOT mobile unit using a local or a remote user interface before installing either the EOT unit at a rear of the train and installing the MOT mobile unit near a midpoint of the train;

arming the EOT unit to a head of train (HOT) unit; and

completing pre-departure tests for the train.

19 . The method of claim 16 , further comprising:

programming an EOT ID into the MOT mobile unit using a local or a remote user interface;

arming the EOT unit to a head of train (HOT) unit; and

completing pre-departure tests for the train.

20 . The method of claim 16 , further comprising:

programming an EOT ID into the MOT mobile unit using a local or a remote user interface before installing either the EOT unit at a rear of the train and installing the MOT mobile unit near a midpoint of the train;

arming the EOT unit to a head of train (HOT) unit; and

completing pre-departure tests for the train.