User's Manual Part 5

ManualsBrandsThomson Broadcast & Multimedia ManualsElectronicsUHF Digital transmitter, for use with MediaFlo

Digital Liquid Cooled UHF

TV Equipment

Use of commands and description of indicators

9932 V2

45321648.01 108 B E

Checked

191 / 192

Numéro / Number Doc. Rev. Lan

27/06/2006

Information contained is this document is confidential, is THOMSON property and cannot be disclosed in whatever form without prior written authorization of THOMSON.

2.7. 860 Cabinet Mains distribution

The Mains Distribution Panel provide selective protection for the installation so that only the protective

device immediately ahead of the fault will be activated :

• Circuit breaker Q6 : protects the mains feeds of the very low voltage power supply for the

Control Processor Unit via the management rack,

• Circuit breaker Q7 : not used,

• Circuit breaker Q8 : protects the mains feeds of external exhaust fan EV3.

• Circuit breaker Q5 : protects the mains feeds of an uninterruptible power supply (UPS) - option,

This configuration, with an uninterruptible power supply (UPS) is an option. Without this

element, Q5 is not used and the mains come from “emergency mains input” (see “LV

distribution” drawing for TB1 terminal block configuration )

• Circuit breaker Q2 : protects the mains feeds of Sirius 1,

• Circuit breaker Q3 : protects the mains feeds of Sirius 2,

• Circuit breaker Q4 : protects the mains feeds of the very low voltage power supply for the

screen of the control panel via the management rack

2.7.1. Indicator lamps and message displays

♦ An orange indicator lamp on the mains monitoring relay K1 gives further information on the

incoming main supply as follows:

• Lit up : OK,

• Extinguished: absence or inversion of phases.

♦ E1 includes 4 surge arrestors “over voltage protection” ( 3 between Phases and Ground , the 4 th.

one between Neutral and Ground .When one surge arrestor is damaged, the light on the

corresponding arrestor is on : the plug-in module has to be replaced .

2.7.2. Test points and adjustment controls

The front panel of the Mains Distribution Panel does not have any test points or adjustment controls,

which can be used by the operator.