Siemens SIMATIC RF640A Operating Instructions Manual page 22

Parameterization of RF640A for RF670R
Operation within the EU, EFTA, or Turkey
NOTICE
Limitation of the radiated power according to EN 302 208 V1.3.1
RF600 systems that are put into operation within the EU, EFTA, or Turkey (ETSI) can be operated with an RF640A
antenna with a maximum radiated power of 2000 mW ERP (or 33 dBm ERP, 3250 mW EIRP, 35 dBm EIRP).
By adjusting the radiated power of up to 1300 mW ERP (or 31.15 dBm ERP, 2140 mW EIRP, 33.3 dBm EIRP), the RF640A
antenna gain of 4 dBi (7 dBic) and the cable loss associated with the antenna cable (see table (Page 3)), the radiated power
of the reader is correctly configured and the radiated power at the antenna is thus not exceeded.
Operation in China
By setting a max. radiated power of 1300 mW ERP (or 31.15 dBm ERP, 2140 mW EIRP, 33.3 dBm EIRP), the RF640A
antenna gain of 4.3 dBi (7.3 dBic) and the cable loss associated with the antenna cable (see table (Page 3)), the radiated
power is correctly configured in the reader.
Operation in the USA, Canada
NOTICE
Limitation of the radiated power to 4000 mW EIRP (36 dBm EIRP)
So that the FCC and IC requirements are met, the radiated power may not exceed 4000 mW EIRP (36 dBm EIRP).
Therefore the system must satisfy the following relation:
Conducted Power P dBm of the RF600 reader (<30 dBm)
•
Antenna gain G
•
Cable loss a dB (≥ 1 dB)
•
k
P(dBm) ≤ 30 dBm - (G - 6 dBi) + a
i
6
dBi in the FCC frequency band (≤ 4.3 dBi)
i
k
SIMATIC RF640A
J31069-D0225-U001-A2-7618, 12/2010