ZyXEL Communications ACCESSING INTERNET & INTRANET omni series User Manual page 20

LNK - The Link LED lights up when the link with the local switch is
active and flashes when attempting to make a connection.
B1 - The B1 channel connection LED lights up when the B1 channel
is established.
B2 - The B2 channel connection LED lights up when the B2 channel
is established.
AA - The auto-answer LED lights up when the TA is in Auto Answer
mode and flashes when it rings.
CP - Lights when Data Compression is being used over one or more
of the B Channels. Compression types are Hi/fn LZS (formerly Stac)
for PPP connections, and V.42bis for V.120 or X.75 connections.
DTR - The data terminal ready LED lights up when the DTE or
computer connected to the DTE Port indicates that it is ready for
communication by raising the corresponding RS-232 signal.
DSR - The data set ready LED lights up when the modem is ready for
communication with the DTE.
RTS - The request to send LED lights up when the DTE has data to
be sent to the remote modem. The RTS signal is used in Hardware
Handshaking.
CTS - The clear to send LED lights up when the modem is ready to
receive data from the remote modem. The CTS signal is used in
Hardware Handshaking.
TX - The transmit data LED flashes when the DTE/Computer is
transmitting data to the DTE Port.
RX - The receive data LED; lights up when the DTE/Computer is
receiving data from the DTE Port.
Phone 1 (omni.net) - The phone 1 LED lights up when the POTS
port 1 telephone/handset is off-hook.
Phone 2 (omni.net) - The phone 2 LED lights up when the POTS
port 2 telephone/handset is off-hook.
8 Installing omni External Models