Walchem WebMaster Manuel d'instructions télécharger pdf (Page 149)

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6.47 Advanced Comms

Internet Dialup (only appears if PSTN modem is installed)

Wait for dial tone before dialing

Click to place a check in the box if you want the modem to wait for a dial tone before calling out.

In some countries the dial tone may not be recognized. If the modem will not recognize the dial

tone, uncheck the box.

Modem Baud Rate

Click on the arrow of the pull-down to select different modem baud rates. The WebMaster modem

is 38400. Normally there will be no reason to change the baud rate. The baud rate may be reduced

if the process monitor is having problems at the higher speed due to poor phone line conditions. In

the future, external modems may be supported that may not have the same baud rate.

Controller Telco Location

Click on the arrow of the pull-down to select the country where the process monitor is located.

Cellular Modem (only appears if cellular modem is installed)

Modem Initialization String

Type in the text box the modem initialization string required for your cell service. It will be in the

format AT+CGDCONT=1,”IP”,”APN” where APN is the Access Point Name provided by the cell

service provider.

SIM Card Number

For information only. The number is read from the SIM card.

Modem Type

Select between North America and Outside North America to specify the band of the cell modem.

Modem Band

Display the band of the modem.

Modem Baud Rate

Click on the arrow of the pull-down to select different modem baud rates. The baud rate will be

negotiated at power-up. Normally there will be no reason to change the baud rate. The baud rate

may be reduced if there are problems at the higher speed due to poor signal conditions.

Maximum PPP MTU Size

Normally the PPP MTU packet size will be negotiated with the cell service. Some services require

a manual setting of a smaller size. Type this in the text box if necessary.

Network Settings

Primary and Secondary DNS IP Address

These text boxes contain the address of a valid Domain Name Server, which allows the WebAlert

to send the emails using the name of the email server rather than the numeric SMTP IP address.

The DNS IP addresses should never need to be changed, unless the server is experiencing

problems.

Ethernet MAC Address

This field displays the MAC address of the Ethernet circuit, in case it is needed by the network IT

administrator to identify the controller.

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Walchem WebMaster Manuel d'instructions Page 149