Paradyne 2001 User Manual page 59

Table A-1. LED Descriptions (1 of 2)
LED
Label Description
EC Error Control. When ON, the DataPort 2001 is using
an error control protocol such as V.42 or MNP.
HS High Speed. When ON, the DataPort 2001 is
transmitting data across the telephone line at its
configured rate (for example, the DataPort 2001 is
configured for V.32 bis and connects at 14,400 bps), or
the DataPort 2001 is connected to a remote modem
that has restricted the DataPort 2001 to 9600 bps in
V.32 mode.
The HS LED also remains ON when the DataPort 2001
is idle.
When Off, the DataPort 2001 is operating at a speed
lower than its configured rate. In a VoiceSpan session
with DataBurst, the HS LED therefore reflects whether
audio plus data or data alone is being transmitted:
audio input causes data to be transmitted at a lower
speed, and the LED turns Off; a pause in audio input
allows data to be transmitted at a higher speed, and
the LED turns ON.
CD Carrier Detect. When ON, the DataPort 2001 has
established a connection with a modem at the other
end of the telephone line. This LED follows the status
of the CD signal, Pin 8 of the EIA RS-232 interface.
(This description assumes that the &C command is
configured for standard EIA RS-232 operation (&C1).
Refer to the &C command in Appendix B for more
information.)
OH Off-Hook. When ON, the DataPort 2001 is connected
to the telephone line and a data or fax call is in
progress.
RD Receive Data. When ON, the DataPort 2001 is
sending data to your computer. This LED follows the
status of the RXD signal, Pin 3 of the EIA RS-232
interface.