Setup guide

GRAVIMETRIC GATEWAY AND ETHERNET COMMUNICATIONS

Devices used in our wireless testing:

• GW21W-MAXI Wireless Serial Server –

The GW21W-MAXI is a device combining

the Ethernet to Serial converter (NPort DE-211) and the wireless Ethernet Bridge

(WET11). It is configured and connected to the Maguire controller using a serial cable.

When installing the GW21W-MAXI, consideration should be given to avoiding

obstructions, high voltage, interference from vacuum loader lines, etc.

• Linksys WAP11 (Access Point Mode) –

The WAP11 in access point mode acts as the

central wireless point for all wireless communications on the wireless network. The

WAP11 device is configured and placed in one of several possible positions in the

wireless network, depending on the layout of the plant. See wireless diagrams for

possible locations.

• Linksys WAP11 (Repeater Mode) -

The WAP11 in repeater mode serves as a wireless

repeater for the device it is configured to repeat. In testing, it was setup to extend the

distance from the WAP11 (Access Point) to the Maguire controllers. If needed the

WAP11 in repeater mode can be placed at a location in the wireless network where

there is a need to boost the signal of the Access Point to reach Maguire controllers.

See wireless diagrams for possible locations.

• NPort DE-211 Ethernet to Serial Converter –

The NPort DE-211 is an Ethernet to

Serial converter and does not have wireless built into the device. This device would

only be used if it is already presently installed at the controller with a wired

Ethernet network and wireless Ethernet is desired instead. If this is the case, then

this device is used with the wireless Ethernet Bridge below.

• Linksys WET11 –

The Linksys WET11 is a wireless Ethernet bridge that converts

Ethernet to the 802.11b wireless. The WET11 can be used to convert the G2 Server’s

Ethernet port to wireless Ethernet.

In some applications the WET11 may be used with the Ethernet to Serial converter

(typically only if the G2-ES’s are already present). The WET11 would be configured

and installed at the controller to convert wired Ethernet (at the G2-ES) to Wireless

Ethernet. The Ethernet port on the WET11 is connected to the Ethernet port on the

NPort DE-211. This device should be positioned where it may obtain the best wireless

signal possible. Consideration should be given to avoiding obstructions, high voltage,

interference from vacuum loader lines, etc. If there is no existing G2-ES units, Maguire

Products recommends using the GW21W-MAXI.