Artel DigiLink DLC300, Инструкция по установке и эксплуатации

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20 DLC300 Function Module Installation and Operations Manual
DLC300 Function Module
The monitor output in receiver mode is always the same as the BNC output on the back panel. The monitor
output in repeat mode is the same as in receiver mode and is always the same as the BNC output on the back
panel.
Typically, the monitor output signal is never dithered; however, when operating in transmitter mode with
dithering enabled and the standby signal set to one of the SDI signals, when the DLC300 loses its input, it
transmits a dithered SDI standby signal through the installed SFPs and also outputs the dithered signal to the
monitor jack.
Understanding the Rear Panel Status LEDs
Both the primary (PRI) and secondary (SEC) SFP connectors on the rear panel have an identical set of status
LEDs as show in Figure 8 .
Figure 8. DLC300 Rear Panel Status LEDs
The OK status LED operates in the same way as the front panel OK LED. For details on how this LED operates,
see Table 6 .
Table 7 describes the different states of the rear panel ACT and STAT status LEDs associated with the primary
(PRI) and secondary (SEC) SFP connectors.
Table 7. DLC300 Rear Panel SFP Connector Status LEDs
LED Indicates . . . State Description Alarms Action
ACT Receiver activity Off Receiver is inactive.
Green Receiver is active.
STAT SFP status Off No SFP detected.
Green Normal operation.
Yellow Standby signal is being
transmitted or received.
Yellow
(flashing)
RX mode only Receive optical power is high. Minor Check the optical RX input
signal.
Red (flashing) No SFPs are installed, low light,
loss of the SFP RX signal (in
Repeat or RX mode), or a SFP
failure exists. Major Check the optical RX input
signal power (in Repeat or
RX mode) or replace the SFP.