Chapter 3
Front Panel and Menu Tree
28
once level is too small from the remote site.
DELAY = XXXX
ms
AT%S
Round trip delay time. This delay is caused by a
round trip of a long distance line, especially in a
satellite circuit. Usually, round trip of a satellite
link shall create a time delay of 0.5 second
(500ms). The modem will accept a maximum
time delay of 1.2 seconds.
P JITTER = -X Deg AT%S
Monitoring the phase jitter of the phone line.
F ECHO = -XX.X
dB
AT%S
Far end echo. This echo is caused when the far
end line impedance is not matched. A smallest
far end echo level is always required. Normally,
the far end echo level is between -20 dB and -55
dB
DTE = XXXXX
ASY 10
AT%S
Indication of speed and data format of DTE. For
examples: DTE = 19200 ASY 10 stands for
19200 bps Asynchronous 10 bits in total bit
length. DTE=14400 SYN means 14400 bps
synchronous.
RETRAINS =
XXXX
AT%S
Total retrain count. From the total retrain count,
you will find the total times of line interference
occurred. This value will not be cleared
automatically unless pressing the "ENTER" key
or power off.
MANU RETRAIN
ATO2
Force Modem redo adapting.
RX BAUD = XXXX
AT%S
Indication of the signaling rate of received
signal. For examples: RX Baud=3429 means the
switching speed or number of transitions is
3429, however, one baud can be made to
represent more than one bit per second. (This
value is only available when operating on V.34)
TX BAUD = XXXX
AT%S
Indication of the signaling rate of transmitted
signal. (This value is only available when
operating on V.34).
RX FREQ =
XXXXHz
AT%S
Indication of the carrier frequency of received
signal. For examples: RX Freq = 1959Hz means
the unique frequency used to to "carry" data is