User Manual
Table Of Contents
- INTRODUCTION
- CONTROLLING THE ACCESS SERVER
- CONFIGURATION
- USING THE SYSTEM
- BLUETOOTH TECHNOLOGY OVERVIEW
- INTRODUCTION TO SDK
- INSTALLING THE WRAP SOFTWARE DEVELOPMENT ENVIRONMENT
- CREATING WRAP APPLICATIONS
- BLUETOOTH SERVER SOCKET INTERFACE
- I/O API
- ABOUT BLUEGIGA
- APPENDIX A – WRAP DIRECTORY STRUCTURE
USER'S AND DEVELOPER'S GUIDE WRAP MULTIRADIO ACCESS SERVER
1. The output power for 802.11a/b/g/h equipment or similar equipment approved
under §15.247 or §15.407 is listed as Conducted RF power. §15.247 or §15.407
limit the e.i.r.p. to 4 W, so this restriction is fulfilled.
2. The output power for Part 22 cellular equipment is listed as e.r.p. The
relationship between e.r.p. and e.i.r.p. is the following one:
e.i.r.p. = 1.64 x e.r.p.
3. The output power for Part 24 PCS equipment is listed as e.i.r.p.
4. For other type of equipment please consult the distributor in order to assure the
restriction is fulfilled.
Note: Definitions:
Effective Radiated Power (e.r.p.) (in a given direction): The product of the power supplied to
the antenna and its gain relative to half-wave dipole in a given direction.
Equivalent Isotropically Radiated Power (e.i.r.p.) (in a given direction): The product of the
power supplied to the antenna and its gain relative to an isotropic antenna.
The table below is excerpted from Table 1B of 47 CFR 1.1310 titled Limits for Maximum
Permissible Exposure (MPE), Limits for General Population/Uncontrolled Exposure:
Frequency Range (MHz) Power Density (mW/cm
2
)
300 – 1500 f/1500
1500 – 100 000 1.0
The equipment WRAP Multiradio Access Server transmits in the 2400 - 2483.5 MHz frequency
range, so the applicable MPE limit is 1 mW/cm
2
. The equipment can be provided with up to 4
Bluetooth modules WRAP THOR 2022-1-B2B (FCC ID: QOQWRAP2022-1-B2B):
Under the conditions stated above MPE limits can be guaranteed as the calculation below
shows:
Example 1:
15.247 or 15.407 Compact Flash Card with maximum allowed e.i.r.p. of 4W
Using equation from page 18 of OET Bulletin 65, Edition 97-01:
S = P·G/4πR
2
= Prad (e.i.r.p.)/4πR
2
Where,
S = power density in mW/cm
2
(1 mW/cm
2
used for G)
P = power input to the antenna
G = power gain of the antenna in the direction of interest relative to an isotropic radiator
R = distance to the centre of radiation of the antenna in cm (20cm Prediction distance)
S
Compact Flash card
= Prad (e.i.r.p.)
Compact Flash card
/4πR
2
= 4000mW/4π(20cm)
2
we obtain the following results:
S
Compact Flash card
= 0.795774mW/cm
2
S
Total
= 4 x S
module
+ S
Compact Flash card
= 4 x 0.003579mW/cm
2
+ 0.795774mW/cm
2
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