FMUX/S-4E1-E2 Multiplexer
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Copyright © 2007 Cronyx
16
4
PORT STATE
Green
E1 operating mode:
• lights - normal operation;
• does not light - port is not used;
• flashes - loop enabled on the port;
• double flashes - tributary loop enabled on the
port.
5
SNMP EACT
Green
Ethernet data transmission in progress.
6
SNMP ELINK
Green
Ethernet cable connected.
7
PWR
Green
Device power present.
8
TST
Red
Test modes:
• flashes when the bit error rate tester is enabled
towards the link;
• flashes when the loop is enabled on the link;
• double flashes when remote loop is enabled.
9
RERR
Red
Errors in the remote device (when the link trans-
ceiver carrier is present):
• loss of the link receiver carrier at the remote
end;
• link synchronization loss at the remote end.
10
LOW
Red
Not used.
