Configuration and Use | DART 300 Modem |
Cabling
The device supports only a
The cable’s DCE end has a male connector and plugs into the modem. The DTE end is a pair of bare wire connections to be attached to the meter’s terminal block
DCE (male)
1DCD
2RxD
3TxD
4DTR
5GND
6DSR
7RTS
8CTS
9RI
Not Connected Not Connected
Not Connected Not Connected
DTE (bare wire)
1DCD
2RxD
3TxD
4DTR
5GND
6DSR
7RTS
8CTS
9RI
Figure 8-2: Dumb Host Cable Without DTE-DCE Flow Control.
Tx, and GND are straight through (DTE to DCE). The modem’s DSR is tied back to RTS and DTR to assert these two control signals that meter does not provide. All other signals are generated by the modem and are left unconnected.
Modem Configuration
The device is used as a client, using
Using a terminal application on a PC, set the communication link to 19200,8,N,1 with hardware flow control on. “AT” is omitted for brevity.
Table 8-2: Sample Configuration – Meter
Command | Remarks |
|
|
+WPNEI=<ip> | Set the modem’s NEI |
+WS174=<n> | Set the side preference |
+WS173=1 | Ensure |
+WS175=0 | Disable Sleep. (Default) |
+WS45=0 | Set UDP PAD. This is required to avoid exposing the modem’s |
| command processor. A TCP session could be closed by the |
| remote station. |
+WS179=0 | Ensure the UDP session connects immediately, regardless of |
| registration. (Default) Along with |
| places the modem in data state on |
+WS212=0 | Disable the server side of the UDP stack. |
S30=0 | Disable the session timeout. (Default) |
+WS213=1 | Set the Friend List index to 1. (Default) |
+WVFRIEND=<ip.port> | Set the IP address and port of the monitoring server. |
Y | Confirm the setting. |
+WS216=1 | Set to |
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