SmarTek Systems SAS-1 Setup Using SAS Monitor - Manual (Page 5)

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Operating Mode – Flow, Azimuth Detect, Single Relay,Flow/Truck Type or Dual Loop
Relay (with loop separation).
Set this to the desired power on mode for operation.
Monitor Mode – Freeway (more dynamic detector settings) or Intersection (less
dynamic detector settings with up to a 2 second detection on hold time
). Set this
according to required operation (monitor Freeway traffic or Intersection Stop Line
Presence).
Internet Connectivity – Yes or No sets a timeout parameter switch in the SAS-1 to
account for expected internet latency and delays when uploading new software to the
SAS-1.
Set this to No unless using internet connectivity between the SAS-1 and the PC
used for setup.
Communication Mode – Periodic or Polled sets the message communication mode from
the SAS-1.
Set this to Polled if the SAS-1 is to wait for a message request before
sending data. Set this to Periodic if the SAS-1 is to send its data message every Report
Interval.
Report Interval – 1 second to 220 seconds. Set this to the desired report interval to be
used for collecting and estimating traffic flow measures (i.e. 20 sec, 30 sec, etc.).
Radio Network Number – For wireless operation, this specifies the spread spectrum
hopping pattern (or network number) needed to match the wireless base unit (roadside
cabinet). Up to 64 network numbers may be used to eliminate interference between radio
networks (consult with SmarTek Systems for detailed directions for setting this
parameter, 0 to 63). The capability to change the SAS-1 Wireless Network Number
using this dialog window is implemented in SAS-1 firmware version SAS_131 or higher.
For RS-422 hard wired home run configurations, set this to 0.
After setting the Default Operating Mode parameter values, click the OK button. Click the Yes
button after reading the warning message. At this point the updated Default Operating Mode
parameters are sent to the SAS-1 and saved in non-volatile memory. The status line in the lower
left portion of the main display will indicate success or failure of the operation.
SAS Monitor and Setup Display and Parameters
The area to the right on the SAS Monitor and Setup Display is used to show measurement/signal
time history, while the area to the left (upper part) is used for common parameter display and
modification. The area in the lower left part of the SAS Monitor and Setup Display is for lane
by lane parameter display and modification and for showing the most recent traffic flow
measurements on a lane by lane basis.
As can be seen in Figure 1, there are several parameters fields grouped in three frames and are
described in the following paragraphs.
Communication and Display Parameters: These parameters are used to set or identify the
SAS-1 data communication mode and the SAS Monitor and Setup display sensitivity.
SAS-ID - Identifies a specific SAS-1 unit for monitoring and setup. This ID must match
the ID for the connected SAS-1 in order to communicate.