Artel DigiLink DLC170, Установка и эксплуатация

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32 DLC170 Function Modules Installation and Operations Manual
DLC170 Function Modules
Table 11. DLC170DA Status LEDs
LED Indicates . . . State Description Alarms Action
TX Transmitter status Off Transmitter is disabled. The
DLC170DA is not being used to
repeat the received optical
signal. None None.
Green Normal operation (input signal is
present). The DLC170DA is being
used to repeat the received
optical signal. None None.
Yellow The DLC170DA cannot detect an
optical video input signal to
repeat and is transmitting the
non-video keep-alive standby
signal. None Check the optical input
signal.
Red
(flashing)
1
Major alarm condition exists
because no optical SFP is
installed or an optical SFP TX
fault exists. None or
major
2
Install an SFP or replace
the existing SFP.
RX Receiver status OFF Video input from the backplane
(not the SFP) selected. None None.
Green Normal operation (optical video
signal is detected). None None.
Yellow Non-video keep-alive signal is
being received. Minor Check the module
transmitting the source
signal (for example, a
DLC170AD).
Yellow
(flashing) Receive optical power is high. Minor Check the input signal
level and install an
attentuator if required.
Red
(flashing)
1
Major alarm condition exists
because of low optical receive
power or because no SFP is
installed. None or
major
2
Check the received
optical power, install the
missing SFP, or replace
the existing SFP.
(Continued)