User's Manual

WEMS Installer’s Guide 22
WEMS Software
brackets, [ ], in the Current Device Settings window may not be changed. The
new values will appear in the Current Device Settings window.
To change Amp Mode, select an option, Low/Medium/High, from the pull-down
list. To change XmitPower, use the up/down arrows to the right of the field.
The Amp Setting and XmitPower controls are available only to reduce the power
below the authorized limits stated Appendix A of this document when desired,
the control will not allow power greater than the authorized limits. To uplink a
sensor to a specific iCCU, enter the serial number of the iCCU in the CCU field,
or enter all zeros to broadcast to all iCCUs in listening range. The Sync to PC
option synchronizes the Real Time Clock on the device to the clock on the
PocketPC
®
. Use this option to synchronize all devices in the field to the same
clock. Normally, Day Begin and Day End are set to 12:00 AM. To change these
parameters, use the up/down arrows to the right of the field. These parameters
only increment in 1-hour intervals.
The Current Device Settings window provides other valuable information that is
accessible using the scroll bar. Figure 15 below shows the Current Device
Settings window for an iTLM-1 when scrolled down to reveal additional
parameters. This other information includes:
• the device serial number;
• a 4-byte encryption key, called the cypher, which must be the same
for all devices in a network;
• the home channel that the device waits on when there is no
activity, (when active the device scans all channels, 0-52);
• the modulus through the scanning sequence, called the DSS skip,
that can create additional sequences and must be the same for all
devices in a network, (usually set to 1);
• the version number of the device’s firmware.