Sierra Wireless DART 300 Manuale Utente
User’s Guide
UDP/TCP Service
2110212 Rev 1.0
Page 77
Table 8-2: Sample Configuration – Meter (continued)
Command Remarks
[+WS62=0]
Optionally disable local PAD echo. RxD is not connected so
this is not required. It may actually be desirable to keep PAD
echo enabled so that a terminal can be simultaneously connected
on-site to the modem’s RxD pin to monitor the data being sent
by the meter.
this is not required. It may actually be desirable to keep PAD
echo enabled so that a terminal can be simultaneously connected
on-site to the modem’s RxD pin to monitor the data being sent
by the meter.
+WS72=0
Disable PAD editing. The binary data may include the <BS>
character as valid data.
character as valid data.
+WS63=0
Disable the primary forwarding character. The binary stream
has no defined delimiters.
has no defined delimiters.
+WS70=2
PAD will forward a packet on 0.2 seconds idle from the meter.
This duration is equivalent to 48 characters at 2400 bps.
This duration is equivalent to 48 characters at 2400 bps.
[+WS74=<n>]
Optionally set a packet length limit below the default of 1000.
The inter-character timer is the only other forwarding condition.
The inter-character timer is the only other forwarding condition.
&D0
Ignore DTR. The cable artificially asserts the signal.
S12=150
Set the TDES guard time to three seconds. The meter sends at
one-second intervals so it will not trigger an escape sequence.
Keeping TDES enabled with a safe guard time allows service
staff a means to connect a terminal, escape data state, and regain
command control of the modem.
one-second intervals so it will not trigger an escape sequence.
Keeping TDES enabled with a safe guard time allows service
staff a means to connect a terminal, escape data state, and regain
command control of the modem.
+WS60=0
Disable TIES. The binary data stream may accidentally contain
this string.
this string.
&W
Save the configuration.
+IPR2400
Set the modem to 2400 bps to match the meter. The modem
will reset after this command and is ready for field use.
will reset after this command and is ready for field use.
Note: Setting Echo off (E0) and Quiet on (Q1) are not needed in this case, since the modem does
not have a receive (Rx) connection to the meter. These features are left at their default to allow
service personnel to connect a terminal and use the modem.
not have a receive (Rx) connection to the meter. These features are left at their default to allow
service personnel to connect a terminal and use the modem.
Using This Configuration
The configuration offered above assumes use of UDP and a fixed IP address and port for the
monitoring server. The DART 300 is placing the data on the network whenever the modem is
powered on and in CDPD coverage. The monitor needs only connect to the network and accept
the packets. There is no means to remotely control the session at the DART 300.
monitoring server. The DART 300 is placing the data on the network whenever the modem is
powered on and in CDPD coverage. The monitor needs only connect to the network and accept
the packets. There is no means to remotely control the session at the DART 300.
In the event of power disruption at the DART 300, it will automatically recover when it powers-up
or resets. The modem will open the UDP session, register, and send telemetry without any
intervention.
or resets. The modem will open the UDP session, register, and send telemetry without any
intervention.