Status LEDs
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Models 2603, 2621, and 2635 User Manual
12
• System Status
Status LEDs
The LEDs indicate the status of the Power, the WAN, Sync Serial port, and the Ethernet connection.
All LED indicators will present the same looking profile (e.g., clear) when unlit due to being single color, water
clear, high efficiency LEDs.
Table 6. Status LED descriptions
Power
Green
ON indicates that power is applied. Off indicates
that no power is applied.
T1/E1
Link
Green
Solid green: connected
Off: disconnected
TD
Green
Green: indicates a binary ‘0’ condition
off
: indicates a binary ‘1’or idle condition
RD
Green
Green: indicates a binary ‘0’condition
off: indicates a binary ‘1’ or idle condition
Sync Serial
TD
Green
Green: indicates a binary ‘0’ condition
off
: indicates a binary ‘1’or idle condition
RD
Green
Green: indicates a binary ‘0’condition
off: indicates a binary ‘1’ or idle condition
CTS
Green
ON: indicates the CTS signal from the router is
active, binary ‘1’
off: indicates CTS is binary ‘0’
DTR
Green
ON: indicates the DTR signal from the DTE
device attached to the serial port is active,
binary ‘1’
Ethernet
Link
Green
ON: indicates an active 10/100Base-T connec-
tion
100M
Green
ON: connected to a 100Base-T LAN
Off: connected to a 10Base-T LAN
Tx
Green
Flashing: when transmitting data from the router
to the Ethernet
Rx
Green
Flashing: when transmitting data from the Ether-
net to the router.
