3Com 005687-03 Manual page 123

RAM
Random Access Memory. Memory that is
available for use when the modem is turned on,
but that clears of all information when the
power is turned off. The modem's RAM holds
the current operational settings, a flow control
buffer, and a command buffer.
remote digital loopback
A test that checks the phone link and a remote
modem's transmitter and receiver.
remote echo
A copy of the data received by the remote
system, returned to the sending system, and
displayed on the screen. Remote echoing is a
function of the remote system.
G
LOSSARY
ROM
Read Only Memory. Permanent memory, not
user-programmable.
serial transmission
The consecutive flow of data in a single
channel. Compare to parallel transmissions
where data flows simultaneously in multiple
channels.
start/stop bits
The signaling bits attached to a character
before and after the character is transmitted
during asynchronous transmission.
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