Anywave ATSC 1.5KW, Руководство пользователя

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ATSC 1.5KW DTV TX User Manual
ACT-1500-USR-DOC-V1.4 09/12/2014 Page 16 of 76
6 Power Amplifier – 600W
This TX is fitted with three UHF-610 PA modules to produce a total 1500W of output power
after the BPF. Each module consists of two 2 pallets (a total of 4 BLF888A devices).
Front Panel
The front panel of PA UHF-610 is shown as below. The LED indicators and ports are listed below.

LED_PWR

Green light will be on when the DC voltage of internal power supply is within the
normal range (48 VDC ~ 52 VDC).

Green light will flash when the DC voltage of internal power supply is out of the normal
range (48 VDC ~ 52 VDC).

Green light will be off when the external power supply is turned off, or internal power
supply module does not work.

LED_RS485

Green light will flash once per second when the internal communication is normal.

Green light will stay constantly on or off when the internal communication is abnormal.

LED_FWD

Blue light will be on when TX power level is stable and higher than 10 W.

Blue light will flash once per second during the ramp up process and the TX power level
is higher than 10 W.

Blue light will be off when the TX power level is less than 10 W, or it’s turned off by
configuration or for protection. There are several situations which will result in auto-
protection mode, such as the input power is too high, the reflected power is too high, or
the temperature is too high. When the transmitter reboots, the default setting of TX
status is OFF.

LED_ALARM

Red light will be on if there is any alarm and TX output will be shut down