Recently, many customers and friends have come to inquire about the meaning of the various indicators of the PDH/SDH optical transceiver. In fact, when many failures occur, we can analyze the fault through the status of each indicator of the optical transceiver to help solve the problem. Next, we will introduce the specific meaning of the PDH/SDH optical transceiver indicator light for you in detail. If you are interested, let's take a look!
The meaning of each indicator light of PDH/SDH optical transceiver:
Power indicator (POWER): When the system power switch is turned on, this green light is on.
Local end alarm indication (LOA): This red light is on when any kind of alarm occurs on the local end.
Remote end alarm indication (RMA): This yellow light is on when the opposite end has any kind of alarm.
No-light alarm indication (NOP): This red light is on when there is no light signal input on the light detector.
Out-of-sync alarm indication (LOF): This red light is on when frame out-of-sync occurs.
Error code warning indication (1E-3): This red light is on when the system has a 10-3 error code.
Error code warning indication (1E-6): This yellow light is on when the system has 10-6 error codes.
E1 SIGNAL LOSS1-4 of branch 1-4: The corresponding red light is on when any E1 signal of branch 14 disappears.
Alarm tone shielding button (ALM/MUT): After this self-locking button is pressed, no alarm tone will be emitted when there is an alarm indication. When this button is released, an alarm light will indicate an alarm and an alarm sound will be emitted.
Local alarm indication switch button (LOCAL/RMT): When this self-locking button is not pressed, the alarm indicator indicates the local alarm status. After this button is pressed, the alarm indicator indicates the alarm state of the opposite end. Power indication, local alarm indication and alarm tone are not affected by this button.
E1 signal disappearance alarm shielding button (RLS/MASK): When the self-locking button is pressed, the branch disappearance alarm state that has occurred will be shielded, and the working branch without signal disappearance warning will not be affected, and then the working branch When the signal disappears again, an alarm indication will still be issued. After this button is released, the alarm status of all E1 branches will not be shielded.
Well, the above is the specific introduction of Feichang Technology on the meaning of each indicator light of PDH/SDH optical transceiver, I hope it can be helpful to you! Feichang Technology , a professional manufacturer of optical transceivers, optical fiber transceivers, industrial switches, and protocol converters, independently researches and develops brands, welcome to come to understand and communicate.