ZyXEL Communications U-336R/RE User Manual page 20

LED
TXD
RXD
CD
DTR
DSR
RTS
CTS
OH
ORG
RI
8 Installation
Name
Transmit
Indicator
Receive
Indicator
Carrier Detect
Data Terminal
Ready
Data Set Ready
Request to Send The DTE requests
Clear to Send
Off Hook
Indicator
Originate Mode
Indicator
Ring Indicator
ON
The DTE is sending
data to modem for
transmission.
The modem is
sending received
data to the DTE.
The modem senses a
valid data carrier on
the line.
The attached
computer is ready to
send or receive data.
The modem is ready
to send or receive
data.
to send data for
transmission.
The modem is able
to accept data for
transmission.
The modem is in
Data Mode or Off
Hook.
Modem is in
Originate Mode.
Modem is in Auto-
Answer mode.
Blinking
Modem
detected an
incoming call.