Wavecom GR64 UART Sleep Protocols Specifikace stáhnout pdf (Strana 81)

7.3. HARDWARE DESIGN

Figure 7.1: Block diagram of uplink module’s hardware interconnect

to have local support for the unit as well as local stock (due to the limited

development period which the ﬁnal year project oﬀers). Although our ﬁrst

choice would have been the Wavecom GR64 (due to it using standard 0.2”

IDC board-to-board connector), the only module which was available immediately

which used standard surface-mount connectors was the Telit GM862QUAD-

Python. It has an on-board SIM holder, MMC-X RF connector and support

for Python script execution. It has an op e rating temperature range of -30

◦

to +80

◦

The GM862 uses a 0.1” 50pin surface-mount Molex board-board connector

for interfacing. Most of these lines are unused in this application, as they

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Wavecom GR64 UART Sleep Protocols Specifikace Strana 81