HTOT840

Rev. 1.1

1996-11-22

Htot840.doc/HS

Page 5 of 9

4.

Using the HITAG Antenna Tuning Device

The HITAG Antenna Tuning Device is a combined current- and phase measurement device. It

can be used for tuning HITAG long range as well as HITAG proximity antennas. Selection

between long range and proximity is done with the help of a switch.

The tuning device is connected between antenna and read/write device as described in the

following:

The cable with plug (DIN 41524) has to be connected to the read/write device, the antenna

cable is to be connected to the jack (DIN 41524) of the tuning device.

Adapters - if they are necessary - e.g. for connection of a proximity system, can be built up

very easily.

Pin assignment of the DIN connectors:

Pin 1: Ground

Pin 2: Rx (not used for long range antennas)

Pin 3: Tx

Moreover, the cable with one of the two DIN connectors (plugs) can be used to build up an

adapter.

After connection of the Antenna Tuning Device the operation mode (proximity or long range)

has to be chosen with the help of the switch.

Afterwards power supply and read/write device can be switched on.