Timing, Excitation delay, Figure 67 – Vaisala Hydromet Data Collection Platform User Manual

Page 140: Timing parameter configuration options

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User's Guide ______________________________________________________________________

138 _________________________________________________________________ M210933EN-C

Timing

The modem control sequence and its timing are configured by various
timing parameters. As the AT interface does not give strict restrictions
for handling or timing the interface, there are quite many parameters to
configure, and the settings may vary from one modem to another.
Lizard Setup Software contains tested defaults for the DXM and
Siemens GSM/GPRS modems. These should be changed only with
extreme caution and experience.

0711-156

Figure 67

Timing Parameter Configuration Options

Excitation Delay

The Excitation delay parameter is in use only when the power control
through excitation pin is in use. It defines the time in seconds from the
power switch-on to the start of the initialization or the transmission
command sequence. When used with a GSM modem, the time required
for finding and logging into the network must also be included.

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