Cabinets for device for transmission of emergency and control signals (DTECS) via fiber-optic communication line (FOCL), DTECS via digital networks (DN), DTECS via high-frequency (HF) lines (SHET)

Function

Typical electrotechnical cabinets SHET HF, SHET DN and SHET FOCL are designed for organization of RPA transmission channels between fuel and energy complex electric-power facilities.

Provides the RPA transmission:

  • via digital networks (SDH/PDH, IP/MPLS, etc.) with C37.94, G.704 (optical joint), G.703 (electrical joint E1) (SHET DN cabinets),

  • via direct optical fibers for a distance of up to 240 km with a use of optical to the distance over 240 km. (SHET FOCL cabinets),

  • via selective optical channel by DWDM systems (SHET FOCL cabinets),

  • via radio relay communication lines (SHET DN cabinets),

  • via HF line-links by electrical transmission line (SHET HF cabinets). .

Installed at the fuel and energy complex facilities.

Hardware structure

As an DTECS via FOCL equipment within SHET DN and SHET FOCL cabinets the equipment of Unitel Engineering production is used:

  • PKUS SR24,

  • PKUS SR24 Module SKO.



As an DTECS via HF within SHET HF cabinets the equipment from leading national and international manufacturers and also of Unitel Engineering LLC production is used:

  • PKUS SR24,

  • PKUS SR24 Module SKO,

  • PKU SR24,

  • PKUS HF Block.



Functions


SHET HF, SHET DN and SHET FOCL cabinets provides the functions of control and monitor of RPA commands and the functions of RPA command transmission.

Advantages


Within the SHET HF, SHET DN and SHET FOCL cabinets the only tested and approved components are used.

The organization of RPA transmission channels with the use of typical cabinets produced by Unitel Engineering allows:

  • to reduce the number of design decisions’ mistakes,

  • to reduce the time spending on development, analysis and consideration of projects,

  • to develop typical methods of service maintenance due to unification of constructive and schematic solutions,

  • to reduce the service personnel trainings’ costs,

  • to simplify forecasting process and labor contribution norms revising.



The albums of typical drawings and schemes are available for all types of SHET HF, SHET DN and SHET FOCL cabinets. Due to Customer’s request, the typical schemes and drawings could be changed.

Price request