Products : Traffic

TD524

The TD524 is a high performance, 4 channel, microprocessor-based card detector complying to Eurocard standards. Features incorporated on this model make it an invaluable component in any ITS system.
The TD524 Eurocard detector is approved to TR0100A UK DoT for urban use.
The TD524 is used in a typically urban intersection application.

APPLICATIONS

· Stopline detection
· Determination of vehicle headway
· Calculation of vehicle occupancy
· Accurate counting

Features of the TD524

· Optimised Response Times:

Response times are optimised to facilitate the collection of accurate speed and count measurement data.

· Optimised Sensitivity:

Sensitivity levels are adjustable for each channel.
These have been carefully chosen for traffic control
applications allowing adjacent lane rejection and
elimination of interference.

· Adjustable Presence Time:

A range of four presence times are available and adjustable for each channel. This facilitates operation in passage mode, limited presence or for
queue detection.

· Loop Fault Monitor:

The TD524 provides local and remote fault output indications on an individual channel basis as required

· Sequential Polling:

Scanning techniques are employed to positively eliminate crosstalk between loops connected to
the same detector module.

Using the TD524 in Intersection Control

Technical Data TD524


Self-tuning Range:	20– 1000 µH
Sensitivity:	Four step adjustable on faceplate High 0.02%L/L Med-High 0.05% L/L Med-Low 0.1% L/L Low 0.5% L/L
Frequency:	Four step selectable on PCB 10khz - 140 khz (Frequency dependent on loop per channel)
Output Configuration:	One presence output per channel
Presence Time:	Four step adjustable on faceplate 3.5 seconds 4 minutes 35 minutes Limited by %L/L
Response Times:	Turn on 52mS ± 2.4 mS Run off 52mS ± 2.4mS Recovery ± 80 mS
Fault Outputs:	Common open collector operates under the following conditions: Loop short/open circuit
Indications:	The following indications are provided: 2 LED per channel 1 Red Detect 1 Red Fault
Protection:	Loop isolation transformers, zener diode clamping on loop inputs and gas discharge tube protection.
Power Requirements:	24 V DC(+20%) Requirement 1.8 VA(max)@24V DC
Output:	1 AMP @ 50V DC
Operating Temp Range:	-40°C to +80°C
Mechanical Details :	Standard Eurocard
Dimensions:	160 mm (deep) x 100 mm (high)
Faceplate:	25mm wide
Connector:	2 x 32 pin card edge (DIN 41612 type B)