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Chapter 3 Operation RIC-155 Installation and Operation Manual
3-2 Controls and Indicators
Table 3-1. RIC-155 LEDs
Name Function Location
PWR (green) ON – Power supply is ON Front panel
ALM (red) ON – Alarm is present in the alarm buffer Front panel
SPEED (green) ON – LAN is operating at 100 Mbps
OFF – LAN is operating at 10 Mbps
Front/rear panel
ACT/LINK
(yellow)
ON – LAN is connected to the Ethernet interface
OFF – LAN is not connected to the Ethernet interface
Blinking – Ethernet interface is receiving/transmitting data
Front/rear panel
SIG (green) ON – Link integrity signal is detected on the STM-1/OC-3 link Front/rear panel
Upon turning RIC-155 on, the PWR LED in the front panel lights to indicate that
RIC-155 is on. Table 3-2 shows the correct status of the indicators after power-up
and software decompression. RIC-155 initialization may take up to 3.5 minutes.
For detailed description of the initialization sequence, refer to Starting Terminal
Session for a First Time in Chapter 4.
Table 3-2. RIC-155 Normal Indicator Status
Indicator Status
PWR ON
ALM OFF, if all ports are connected
SPEED ON or OFF, according to the
speed of connected LAN
LINK/ACT Blinking, if port is connected
and transferring data
SIG ON, if port is connected
If the above LED indications do not appear following initial power turn-on, refer to
Chapter 5 for the diagnostic test instructions.