Learning Event 3: Maintenance Responsibilities

Introduction to Technical Control Part I
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Lesson 1/Learning Event 3

Learning Event 3: MAINTENANCE RESPONSIBILITIES

a. Coordinating Maintenance. Technical control personnel are involved

in almost every aspect of operation within the station.

All user circuit

requirements must be made known to these personnel. The inputs and outputs

of most equipment appear at the patch bays and test boards, also the order

wire circuits.

For these reasons, the personnel at the technical control

facility are in an ideal position to determine faulty circuits, detect

equipment failures, and coordinate the accomplishment of repairs with the

appropriate station maintenance sections. This includes guiding maintenance

personnel to the defective equipment, reporting observed trouble symptoms,

patching around the affected circuits (equipment substitution), assigning

priority to the repair work, and coordinating maintenance activities with

connected technical control facilities when circuits must be interrupted.

b. Telegraph and Audio Channel Trouble Isolation.

Each technical

control facility is responsible primarily for the receive side of all

circuits at the technical control facility.

If it is determined that the

circuit is not operating satisfactorily, the technical controller will

monitor and analyze the circuit to determine the trouble.

Then the

technical controller at the receive station will proceed as follows:

(1) Coordinate with the distant technical controller to stop traffic and

perform test to determine the quality of the connected technical control

facilities. If the circuit does not meet standards, restore service to the

user on a spare channel or by preemption of a lower priority circuit when a

spare channel is not available.

(2) If the channel between the connected technical control facilities

meets quality standards, analyze the circuit between their respective

stations and the connected users to locate the trouble.

When circuit or

equipment repairs have been completed, and when the circuit meets quality

standards, restore normal service to the user.

(3) When an interconnected circuit passes through a number of control

facilities, the technical controller in each facility is responsible for the

However, the technical controller in the

facility immediately serving the complaining user will coordinate the

activities in all facilities involving circuit restoration.