Artel DLC274 - Manual (Page 2)

www.artel.com | 978-263-5775 | [email protected] | [email protected]
DLC274M Front Panel LEDs
LED Function Color Description
OK
DLC274M
Module
Status
OFF If power is applied to the system, an internal fault with the DLC274M may exist
n Green Normal operation
n Yellow If no other status LEDs indicate a minor alarm, then a temperature alarm is indicated
n Red
If no other status LEDs indicate a major alarm, then an internal error is indicated, such
as an onboard communications error or an onboard power error
EMS
DigiLink Manager
System
Status
OFF
The DLC274M module is in local mode and its configuration is controlled by the
onboard configuration switches
n Green
The DLC274M module is in remote mode and the configuration has been set by
DigiLink Manager. When in remote mode, the actual configuration of the module
will likely not match the settings of the configuration switches and changing the
configuration switches will have no effect on the module operation
TX
Transmitter
Status
OFF Transmitter is disabled
n Green Normal operation
n Red SFP TX failure exists
 Red No SFP is installed
RX
Receiver
Status
OFF Receiver is disabled
n Green Receiving a 270 Mb/s signal
n Yellow Standby signal is being received
 Yellow Receive optical power is high
n Red Incorrect input signal type (for example, not a 270 Mb/s signal)
 Red
Possible causes:
• No SFP is installed (RX and TX LEDs are both flashing)
• A low receiver power condition exists
• An SFP RX failure exists
A, B,
C, D
270 Mb/s
Channel
Status
OFF Input disabled
n Green 270 Mb/s video detected
n Yellow No signal applied
n Red Video input signal rate is outside the range (270 Mb +/- 100 ppm)
 Flashing yellow |  Flashing red
Install SFP
AR208-008020-B00_D
270 Mb/s Digital Video 4-to-1 TDM Multiplexer with
Optical Transmitter/Receiver/Repeater [DLC274M]