Vivax Metrotech FLS-2, Руководство пользователя

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4 Introduction
4. Introduction
This chapter contains the following sections:
• System Overview
• Features
• Transmitter Signals
• Modular Design
• Specifications
4.1 System Overview
The Vivax-Metrotech FLS-2 transmitter and vLoc series receivers locate underground
fiber optic cables. This user manual covers the FLS-2 transmitter. For instructions
about using the vLoc series receivers, see their instruction manuals.
The FLS-2 transmitter sends a predefined signal lower than 10 kHz along the metallic
sheath surrounding the fiber optic cable, generating an electromagnetic field for the
length of the cable.
The receiver is outside to locate the electromagnetic field around the underground
cable. When using one of the predefined transmitter signals, the receiver can estimate
the relative position and path of the cable.
Figure 4-1 FLS-2 Transmitter and Receiver
4.2 Transmitter Signals
The transmitter is a signal generator that consists of one or more programmed
frequencies that allow you to locate and trace the fiber optic cable. The predefined
frequencies are: