IPICO's Dual Frequency products offer the same ability as low frequency RF systems for operating tags in lossy mediums,
and the same high data rates as those offered by UHF systems. The dual Frequency operating frequencies are such that
tags are not screened by human bodies, conducting liquids, etc. Compared with other low frequency technologies, much
longer reading ranges can be achieved, mainly because the return link (Tag to Reader) operates at 6.8MHz, which is much
higher than the forward link (for powering the Tag), which operates at 125 kHz. These products employ the same anticollision
algorithm as the popular UHF products, allowing up to 120 tags to be read simultaneously, at a rate of up to 30
tags/s. The technology is ideal for tracking people, animals, documents and paper rolls, as well as for underground and
mining applications, including marking buried objects (e.g pipes). The IP-X TM protocol handles dynamic tag populations
extremely well; the Reader does not have to complete reading a group before new tags are added.
The Medium Range Dual Frequency Reader has a dual integrated loop antenna system, and can operate as a single unit
(linked to a PC, DIMI, or other control device), or in conjunction with a second unit to span a portal, door way, or passage.
When two Readers are operated together, the Reader connected to the PC is the “Master” unit, while the second Reader is
the “Slave”. The Master controls the Slave Reader, receives its tag data, which it sends to the PC or DIMI together with its
own received tag data. These readers provide an effective 2-Dimensional read ability – i.e. the tag may not be read reliably
if its plane is horizontal.
Key Features
§ Compliant with USA, European, Australian, and RSA spectrum allocations.
§ Robust anti-collision protocol (up to 120 tags simultaneously)
§ Range (using credit card tag): 1m Master alone; 1.8m portal spacing using Master & Slave
§ High tag bit rate (128 kbit/s)
§ Optical Master-Slave link (optional; otherwise cable)
§ Data & control: Binary or ASCII RS232 & Ethernet, with programmable data rate and flow control.
§ Top panel status LEDS: Master Reader indicates Power ON by Red colour, flashing Green rhythmically to indicate Decoder OK, and also with every valid code received. Slave Reader only indicates Power ON by Red LED.
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