Introducing the AC-Powered Micro-HAWK Crosswalk Controller
TEMPE, AZ - 01/05/2014 - In response to customer complaints about the high
cost and large size of HAWK control cabinets, STC has created a Micro-HAWK
(uHAWK) controller specifically targeted to this signal application.
The unit includes easy-to-use timing logic with a backlit LCD user
interface. Timing can be set on the screen for the amber flash and solid
intervals with minimum timing values hard-coded for each interval to prevent
setting the timing too low. Red clearance is also hard-coded with a minimum
value as are the walk cycle and don't walk cycle time. The unit also
includes a minimum off time at the end of each run which is also field
The unit ensures the signal works correctly through the use of a 6-channel
EDI monitor. The monitor looks for disallowed conditions such as showing the
walk symbol when the signals are not in solid red. Should the displays
conflict, the system reverts to an amber flash display and blanks the ped
Unlike a full size controller, the uHAWK is only 15.5-inch x 26-inch x
15.5-inch and includes band mounts on the rear to allow installation on one
of the mast arm poles at the crossing. This alleviates the need to pour a
pad for the enclosure and the associated infrastructure for this approach.
Two versions of the uHAWK are being produced: A basic unit, uHAWK-1, which
runs as a standalone traffic device but has 6 digital inputs for contact
closure control in the event that timing coordination is needed. The uHawk-2
includes a more advanced controller and allows for control via Ethernet.
For more information on the uHawk controllers, visit the AC powered traffic
control devices section on the STC website. For more information on STC's products and services, please
stay here on our website or send an email to email@example.com
or call 480.449.0222.