Ericsson M3090, Руководство интегратора

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Introduction 9
M3090 Integrator’s Manual, Doc.no: 198 17 - KRD 102 303 Uen, Rev B
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By running an application program on the host, a user can transmit and receive
data to and from the Mobitex network. The M3090 radio modem operates in
half duplex mode when communicating with the network, and in full duplex
mode when communicating with the host. The following radio frequencies can
be used:
1RWH
National regulations may restrict the above frequency ranges
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Transmitting frequency 896 - 902 MHz
Receiving frequency 935 - 941 MHz
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Memory
I/O port
Micro-
controller
Transmitter
Receiver
M 3090
Data to and
from host
MPAK to
and from
network
6/LZE 401 182 R1
Digital
Signal
Processor
(DSP)
RS232
BIN IO
AD/DA
I
2
C
Flash
SRAM
E
2
PROM