Appendix C - LED Patterns and Test Switch Settings
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Appendix C - LED Patterns and
Test Switch Settings
MicroRouter 1270i LED Patterns
The MicroRouter 1270i uses a number of light patterns on its front LED
bars to indicate operating conditions.
Power On, No Traffic
The router will scan through the left two (Ethernet) LED bars, from left
to right, illuminating one element at a time.
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Note:
Lights 1 and 10 on each bar are directly connected to the
router’s 10BaseT interface and indicate 10BaseT link (1) and 10BaseT
polarity (10).
Ethernet Traffic Indicators (Ethernet LED Bars)
Scan from 2 to 5: Ethernet transmit packet
Scan from 9 to 6: Ethernet receive packet
WAN Indicators (WAN LED Bar)
Transmit and receive packets - per WAN interface as marked on front
label.
Frame - Internal T1 CSU/DSU (WAN 0) is receiving framing informa-
tion.
Error - Internal T1 CSU/DSU (WAN 0) is detecting a line error and
sending a yellow alarm.
Yellow - Internal T1 CSU/DSU (WAN 0) is receiving a telephone
company yellow alarm.
Loop - Loopback mode in the internal T1 CSU/DSU (WAN 0) has been
set by the remote end.
