4 Configuring the Serial Port Settings iPocket232 User Guide
23-CML000293 iPocket232 Inc. 35
4.13 Preferred Packet Size
Preferred Packet Size specifies the maximum number of characters in a data packet. If
left at 0, data will be sent in amounts equal to the maximum network packet size (usually
about 1500 bytes). As with maximum inter-character delay, this option accumulates data
before sending it, which can help reduce network overhead.
To enter or change the Preferred Packet Size:
1 Choose Serial Port from the Device Settings menu.
2 Choose Preferred Packet Size from the Serial Port Settings sub-menu. You are
prompted to enter the preferred packet size.
3 Type your preferred packet size and press Enter.
4.14 Initial String (Transparent Protocol Only)
Initial String allows you to insert a string of characters that are prepended to the initial
data packet at the beginning of every established connection between the iPocket232 and
your serial device. The string can be a unique identifier for each device, a maximum of
16 characters long, and can include the special characters listed in Table 4.7.
Table 4.7: Initial String Special Characters
character ?? (two hex digits giving the ASCII value of the
desired character)
To configure an Initial String:
1 Choose Serial Port from the Device Settings menu.
2 Choose Initial String from the Serial Port Settings sub-menu.
You are prompted to enter the string to be sent upon connection.
3 Type the string at the prompt and press Enter.
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