change color from red to green. To program in a “tag” line, use the RS- 3 input, type
the word “status” to view all the current “tags”. To change a tag, type “channelx” where x
is the channel number you wish to change. Follow the prompts and type up to 16
alphanumeric characters followed by the enter key. The thumbwheel switch selects the
channel to be read on the LCD screen. The display mode button cycles through the
display options i.e. tag-event, tag-launch time, or event, launch time modes.
Overview:
The model #75 00 8 Channel Mux allows up to 8 channels of CS-5 46 to be multiplexed
together into a 38.4 KB stream for distribution. Along with the count data, each channel
is allocated 16 characters to be used as “tag” data. This tag data can be any alphanumeric
ASCII character string and is associated with a specific channel. Therefore, there are 16
X 8= 1 8 characters that are transported on the stream. The count data is sent in real time
with very little delay. The tag data is sent out as 4 bytes every 100ms. It can take up to
3. seconds for all channels in a reader to fully recover all 1 8 bytes. Since tag data is
designed to be used as labels, such as mission number or “local time”, and does not
change rapidly, it is not necessary for it to be sent at a high speed.
Having an 8 channel multiplexed signal allows users to have access to multiple counts at
their work places. It is not necessary to switch the data stream from a remote location.
Tags allow labels to be sent to all users at once and are usually set up before a mission.
See IRIG Standard 15-11 for a detailed description of CS-5 46 and CS-5 59.
Operation:
Connect a suitable AC mains power source to the rear IEC connector. Connect one or
more CS-5 46 signals to the desired input connectors. Turn on the AC power switch on
the rear panel.
The Model #75 00 will power up and begin sending out the multiplexed stream. If
desired, the “tag” data may be entered for each channel. See remote operation for
specifics on tag programming.
The thumbwheel selector switch selects which of the 8 channels is displayed on the two
line LCD screen. The actual multiplexed stream is decoded and displayed on the line
LCD and provides confidence that the actual data is in the stream.
The LCD screen will display the Tag, EC screen as a default on power up. Pressing the
Display Mode button will change the display to Tag, Launch Time. Pressing the button
again will display EC, LT. Further pressing of the button will start the sequence over
again.
