Raisecom Technology Co., Ltd
LOS red indicator of E1 channel is on
Answer: Loss alarm of RX signal at E1 channel, there is no HDB3 signal received. Check if
it connects well at E1 port; if the connection of 75 Ω cable reverse and if the string of 75 Ω
cable in right order. If there is LOS alarm of unused E1 tributary, can press "mask" button to
"on" to make alarm after configuration of device.
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