262
low
lowthreshold
: Specifies the lower RSSI threshold value in the range of 0 t o 150, which
represents a lower RSSI threshold in the range of –150 dBm to 0 dBm. The value of
lowthreshold
cannot be smaller than the value of mediumthreshold because the system automatically adds a
negative sign to the RSSI thresholds.
medium
mediumthreshold
: Specifies the upper RSSI threshold value in the range of 0 to 150, which
represents an upper RSSI threshold in the range of –150 dBm to 0 dBm.
Usage guidelines
The device performs the following operations based on the actual RSSI of the 3G/4G modem:
•
Sends a trap that indicates high RSSI when the RSSI exceeds the upper threshold.
•
Sends a trap that indicates normal RSSI when the RSSI is between the lower threshold and
upper threshold (included).
•
Sends a trap that indicates low RSSI when the RSSI drops to or below the lower threshold.
•
Sends a trap that indicates low RSSI every 10 minutes when the RSSI remains equal to or
smaller than the lower threshold.
To view the RSSI change information for a 3G/4G modem, use the
display cellular
command.
Examples
# Set the lower threshold for a 3G/4G modem in GSM mode to –110 dBm.
<Sysname> system-view
[Sysname] controller cellular 0/0
[Sysname-Cellular0/0] rssi gsm low 110
sendat
Use
sendat
to issue a configuration directive to a 3G/4G modem.
Syntax
sendat
at-string
Views
Cellular interface view
Predefined user roles
network-admin
Parameters
at-string
: Specifies a configuration directive string, a string of 1 to 300 characters. This argument can
be an AT directive (containing
+++
,
A/
, or be any string beginning with
AT
) or a CNS directive. For
more information about AT directives, see the
sendat
command in
Layer 2—WAN Access
Command References
describes the CNS directive samples.
Table 55 CNS directive description
Directive
Description
CNSn
Controls the CNS heartbeat debugging switch.
•
n = 00000500000000000000
—Enables CNS heartbeat debugging.
•
n = 00000800000000000000
—Disables CNS heartbeat debugging.
Usage guidelines
The
sendat
command does not verify the configuration directive. Each time it issues one
configuration directive to the 3G/4G modem, lowercase characters are automatically converted to
uppercase characters.
Содержание MSR810
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