ADTRAN 1200218L1, User Manual

Page: 36 / 122

Chapter 2. Installation and Operation
2-12 OSU 300 User Manual 61200663L1-1
Remote Login
Allows configuration of certain items on the remote OSU 300. The
remote unit’s password is required at login.
Logout
Ends the terminal session and logs out of the system. Password
entry is required before a new session can begin.
Remote Active LED
A solid LED indicates a remote configuration session is taking
place through a Telnet session or from the remote end OSU 300. The
LED flashes when the unit is being accessed locally through the
front panel
CONTROL
port.
Optical Interface LEDs
The following LEDs provide information on the optical interface.
In Service
Active when a valid signal is being received on the optical
interface.
In Test
Active when the network interface has been put in loopback by the
service provider.
Alarm
Active when the high-speed receive signal contains framing errors,
when the yellow alarm is received from the far end unit, or when
other alarm messages are received from the network.
LOS
Active when no receive signal from the network is detected on the
Rx (in) circuit.