D841/D850 Installation Manual
008D-600-150
Page 9
communications connector. The 5-24VDC supply is then run through the switching
control device before been connected to pins 5 for RED and/or 6 for GREEN as per
the diagram below.
Figure 11 - Driving traffic lights from external DC source
2.6.
Setup Command
The display will auto-detect the Baud, Parity Bits on start-up when the string is being
streamed to it. The Protocol can be left as auto detect which will require the remote
to buffer 50 chars of data before selecting correct protocol match, this ok for device
which stream the data out at a set rate. For system like PC software that only send
a single string with new data when required the Auto Protocol detect may not
display all messages sent. To overcome this, you can lock the protocol using the
configuration string which will force the unit not to search on start-up but display first
message received. The display will try and display all data received when in a
locked state even if the protocol does not match. Check the start-up sequence if the
remote is locked to the correct protocol (PR. 00 is auto). There is a list of settings
that are configurable if the default values are not suitable. The reset string will
default the unit and must be used prior to making changes. These settings can be
altered with a setup command string which is required to be streamed to the display
instead of the source device protocol prior to installation.
