19/09/18
Page 16 of 67
ASR650 Operational Manual
3
The Reader Electronics
ESD precautions must be taken while touching the reader board after it has
been removed from its antistatic bag. Ignoring this warning will lead to the
loss of warranty.
The ASR650 is a stationary reader designed for reading both ISO relevant transponder
technologies: FDX-B and HDX. It is operating on 134.2kHz and can read passive tags as defined
in ISO11784/11785 at a very good reading range. Combined with one of our antennas, the
ASR650 provides a flexible and universal RFID system.
The reader board consists of the power supply, the transmitter (including patented Autotuning
function), two separate receivers (for FDX-B and for HDX), a microcontroller, two communication
interfaces (RS232 and RS485) and an interface for connecting a four- or eight channel antenna
multiplexer. The ASR650 additionally offers an interface for add-on modules like Bluetooth,
WLAN, Ethernet or the two-channel antenna multiplexer. The optional wired Synchronization
module can be attached to another connection strip.
3.1
Specifications
Item
Specification
Power Supply
12V (3A) DC to 24V (1.5A) DC (+/- 5%)
Operating Frequency
134.2kHz
Reading Range
HDX: up to 70cm FDX-B: up to 65cm with antenna APA203
Reading Rate
HDX: up to 14 reads per second FDX-B: up to 18 reads per second
Antenna Tuning
Patented Autotuning (USP 6, 070, 803 and EP 0 625 832 B1)
Interfaces
RS232 and RS485 (8N1, configurable from 9600 Baud to 115200 Baud)
Optional:
Bluetooth Class 1 (Master capable) or
Ethernet
Indicators
Onboard LEDs:
Yellow: Power
Green: Tag Read
Red: Malfunction (antenna tuning or low input voltage)
Optional: External LED board with buzzer
Synchronization
Wireless Synchronization for HDX only
Wired Synchronization optional
Antenna values
Inductance = 13µH, Capacitance = 105nF, >750
Ω impedance at full
transmit power (can be less when transmitter power is lower), see chapter
2.1.6.
Temperature
Operating Temperature: 0-60°C Storing Temperature: -20-70°C
Dimensions
L x W x H: 160 x 100 x 30mm