Black Box 16-Port Rackmount 10/100 Installation Manual page 25

The command "DEFINE PORT 2 DATASEND CHAR Z &" would send any accumulated
data as soon as the characters "Z&" are detected in the data stream.
x x x xxx xx x (data) x x xx x Z xxxxx x Z &
|---------------------------------------------------------------|
The DATASEND match characters can either be sent to the host as part of the data or can
be discarded. Use the command:
DEF PORT n DATASEND SAVE [1 | 2 | NONE]
There are several important caveats in this functionality:
The timer resolution on these products is approximately 20 milliseconds. Any time-
out values lower than 30 msec will be approximated as well as possible.
Packets created by the serial handling rules will be queued to the Ethernet driver as
a single operation, but there is no guarantee that they will be received at the network
host in a single network read.
If the serial input buffer is filled, the accumulated data will be queued to the Ethernet
driver regardless of the serial handling rules. The serial input buffer size is 1024
bytes.
transmit packet
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