NASDAQ LEVEL II
TIME AND SALES
Feed Status Window
The Data Feed Status window updates continuously (every 5 seconds) and indicates
whether the feed is active or inactive. When data is being received, the Packets Received
"Last data packet" tells when the most recent packet of information was
received from the feed.
"Reads Issued" is an indicator of requests made by Investor/RT to the feed.
"Packets Received" is a count of how much data has been received from the feed
during the current Investor/RT session. This count should be constantly increasing.
"Last Raw Symbol" displays the most recently received symbol quote, regardless
of whether the symbol is defined in Investor/RT.
For Signal users, the primary and report service codes are contained in this window. For
DTN users, the authorized exchanges are listed at the bottom of the window. For
users, the status of the user's DTN.IQ account is shown.
The Main toolbar has a data feed active indicator at the right end of the tool bar. When
the data feed is inactive, the indicator (a rectangle) is solid black. When the data feed
is active, the rectangle changes appearance every few seconds to let you know that valid
data packets are being received from the data feed. If data stops arriving for some
reason, the rectangle will remain static until a minute has gone by when it will turn
solid red to indicate a NO DATA condition.