Manual

4 Configuring the Serial Port Settings iPocket232 User Guide
34 Precidia Technologies Inc. 23-CML000293
4.11 Packet Prefix (Transparent Protocol Only)
If you select Transparent in the Protocol setting, you have a Packet Prefix option.
Packet Prefix allows you to insert a two-byte header stating the length of the data in
the packet, including or not including the header itself. Some POS systems, such as
ACI BASE24, may require these types of headers.
To set or change the Packet Prefix:
1 Choose Serial Port from the Device Settings menu.
2 Choose Packet Prefix from the Serial Port Settings sub-menu.
You are prompted to enter the packet prefix type, as shown below.
3 Choose a packet prefix type and press Enter.
4.12 Maximum Inter-Character Delay
Maximum inter-character delay specifies the maximum elapsed time in milliseconds
between received characters before the iPocket232 forwards the data packet to the
destination, to a maximum of 60 000 ms. This option accumulates the data before
sending it and therefore tends to group related data together and reduce network over-
head.
If left at zero (0), the iPocket232 determines a reasonable delay based on the config-
ured Port Settings.
To enter or change the Max Inter-Char Delay:
1 Choose
Serial Port from the Device Settings menu.
2 Choose Max Inter-Char Delay from the Serial Port Settings sub-menu.
You are prompted to enter the maximum inter-character delay in ms.
3 Type the time for the delay at the prompt and press
Enter.
A. none - received bytes are sent in packets with nothing extra
B. length - a 2-byte header indicating the length of the data to follow
C. length+2 - a 2-byte header indicating the length of data plus header
Enter packet prefix type (letter):
Choosing the Packet Prefix Type