Instruction manual

4) Using the Arrow Keys, select the speed of transfer you want to be able to call the counter at. Make sure it’s not

faster than the modem can handle.

5) Keep pressing ENTER until you return to the main menu.

6) Follow the steps under Standard Modem Hook Up.

Notes about switch settings

If you are using a non-programmable dumb modem, all configuration of it is usually done through switch settings. Follow

the below guidelines when setting these switches.

1) DTR Status (sometimes called Data Terminal Ready) should be in the Hang Up when Toggled setting.

2) DCD Status (sometimes called Data Carrier Detect) should be in the Reflect Actual State position (not always

“on” or always “off”).

If you are using a Smart Modem, switching settings are not normally important because the Phoenix II will re-initialize

the modem to the correct settings with software.

3.c.4 Master/Slave Function

In sites where more than one unit is needed or where two separate counter units are placed, the Master/Slave function

can allow for one Modem or Serial connection to be shared to save on expense or phone installation. The Master/slave

function (Configure System See Section 4h) can be set up to have one unit be the Master controller and subsequent

units be slave (peripheral) units to allow communication to be switched from unit to unit on the same serial line. Up to 9

Slave units can be connected to a Master unit. By default the unit will have this feature set to “0” which is off. Master

units are assigned “1” and Slave units are “2-10”. Because the units share the serial connection, modem or serial

cables need to be wired together to function properly. Contact Diamond Traffic Products to order cables or for more

details.

3.d. Sensors

A Phoenix II needs to have some type of sensor connected in order to detect traffic and collect data. Some type of

sensor must be used to sense a vehicle passing and send an electronic signal to the main microprocessor in the

Phoenix II. Variations include Road Tubes, Inductive loops, Piezo Electric, Tape Switches, Infra-Red, etc. The Phoenix

II supports any type of sensor with any type of data collection, thus selecting a sensor is largely a matter of personal

preference and/or matching existing equipment. Refer to section 2 for further sensor layout details.

3.d.1. Road Tubes

Road Tubes (or just “Tubes”) refer to hollow rubber tubes usually ranging from 20 to 100 feet (7 to 30 meters) in length.

These Tubes are stretched across the roadway so that oncoming traffic will drive over them. This generates a sound-

wave (or an “air-pulse”) which travels down the tube and allows the electronics of the Phoenix II to determine that a

vehicle axle has passed.

Tubes offer the advantage of being movable, quick to install, inexpensive, and capable of detecting individual axles of a

vehicle. Their disadvantages include rapid wear, hard to secure for long periods, and drivers noticing the tubes and

possibly changing speed, lanes, etc.