To arm two-way telemetry, what is the second step?

To arm two-way telemetry, what is the second step?

• A. Enter the ID code of the EOT into the head-of-train device.
• B. Press the TEST button on the EOT.
• C. Record the telemetry status in the log.
• D. Verify the EOT power.

Answer: (B)

The key idea here is establishing a working two-way link between the End of Train device and the head-of-train unit. You start by making sure the EOT has power so it can operate. The next action is to press the TEST button on the EOT. Pressing TEST triggers a self-check and sends a signal to the head-of-train device to verify that the two-way communication channel is functional. If the test passes, you would then proceed to register the EOT’s ID in the head-of-train device and, later, log the telemetry status. The other steps are either what you do after the test (enter the ID, log the status) or are checks that are done prior to testing (power verification).

The key idea here is establishing a working two-way link between the End of Train device and the head-of-train unit. You start by making sure the EOT has power so it can operate. The next action is to press the TEST button on the EOT. Pressing TEST triggers a self-check and sends a signal to the head-of-train device to verify that the two-way communication channel is functional. If the test passes, you would then proceed to register the EOT’s ID in the head-of-train device and, later, log the telemetry status. The other steps are either what you do after the test (enter the ID, log the status) or are checks that are done prior to testing (power verification).