scemtec Transponder Technology GmbH SIR-2720 Manual Do Utilizador
Manual and Specification
SIR-2720 (13.56 MHz Midrange Reader)
Document No. SIR-2720
Version:
0.04
Page
6 of 14
4.2
Reading / Writing Tags
Several tags in the field can be read or written simultaneously (
anti-collision). The duration of the
reading/writing process depends on the number of tags in the field. Generally, there is no max. number
of tags that are permitted in the field at the same time.
of tags that are permitted in the field at the same time.
4.3
EAS Antitheft
EAS is an abbreviation of Electronic Article Surveillance. This operating mode serves to monitor items or
articles electronically. The tags in the field are neither read nor written. The only thing determined is
whether a tag is in the field with a set EAS mode flag. This mode allows for greater ranges than the
read/write mode. When using an external antenna such as the scemtec SAT-A40-LR-O-13MHz with an
edge length of 400 mm (available as optional equipment), the detection range can be expanded up to
max. 700 mm.
Note: EAS mode is not supported by all silicon and transponder manufacturers.
articles electronically. The tags in the field are neither read nor written. The only thing determined is
whether a tag is in the field with a set EAS mode flag. This mode allows for greater ranges than the
read/write mode. When using an external antenna such as the scemtec SAT-A40-LR-O-13MHz with an
edge length of 400 mm (available as optional equipment), the detection range can be expanded up to
max. 700 mm.
Note: EAS mode is not supported by all silicon and transponder manufacturers.
5
Hardware
5.1
Voltage Supply
The standard version of the SIR-2720 reader in standard housing is designded for an input voltage
range of 12 Volt / =DC and a tolerance of +/_ 1Volt . The following input voltage ranges are thus
possible with the rated current consumptions in different operating modes:
Input voltage ranges:
= DC / direct current
= DC / direct current
12 volt
Input voltage - tolerance
+/_ 1 volt
Current consumption of the different operating modes:
in STANDBY mode: @12 V / DC power supply
in STANDBY mode: @12 V / DC power supply
≤ 150 mA
while operating(carrier on):@12 V / DC power supply
≤ 800 mA
For the SIR-2720 reader system is a suitable wall plug 12 volt =DC / 1000mA power supply also as
optional accessory available and contactable to the SIR-2720 over a 2.1-mm standard barrel connector.
5.2
Safeguarding, fuse-requirements
Regarding the safety requirements for the SIR-2720 a standard TR5-fuse T1A / 250V (slow blow fuse) is
used to protect the complete electronics inside against short circuits or overcurrent .
It is required that this fuse should only be changed by trained technician or skilled personnel !
used to protect the complete electronics inside against short circuits or overcurrent .
It is required that this fuse should only be changed by trained technician or skilled personnel !
5.3
HF Unit
The carrier frequency of 13.56 MHz is generated in the HF unit. The final stage generates an output of
max. 1.4 watt on nominal Z
max. 1.4 watt on nominal Z
F
= 50 Ω.