COMSPHERE 3800 Series Modems – Model 3830
1-4
November 1996
3830-A2-GB91-20
Table 1-1
(1 of 2)
Model 3830 LEDs
Label
Color
Indicates
PWR
green
Power
ON. Power is on and the modem is capable of
operating.
ALRM
red
Alarm Flashing
The modem has detected an internal
malfunction.
OH
green
Off-Hook
ON. The modem is off-hook.
OFF. The modem is on-hook.
DTR/108
green
Data Terminal Ready
The DTE has turned ON DTR or the modem
has forced DTR ON.
RTS/105
green
Request-to-Send
The DTE has data to send to the modem.
CTS/106
green
Clear-to-Send
The modem is ready to receive data from the
DTE.
TXD/103
green
Transmit Data
The modem is receiving data from the DTE to
transmit.
LSD/109
green
Line Signal Detect
The modem has detected a valid carrier
signal and is capable of transferring data to
the DTE.
RXD/104
green
Receive Data
Data is being transferred to the DTE.
SQ
yellow
Signal Quality
The receive telephone line signal is degraded.
EC
green
Error Control
Modem is in Error Control mode.