Chapter 3: AT Commands Reference
June 30, 2008 AT Commands Reference Manual 3-443Product Architecture
The following figure shows the former architecture (PREMUX).
Figure 3-18: PREMUX Architecture
The following figure shows the current product architecture (MUX).
Figure 3-19: Current MUX Architecture
MUX States Overview
The G24 MUX module has three states:
•PREMUX
•MUX-Init
•MUX
Onlyonechannel-
thisChannelalternates
betweenApplications
HW/SWFC ,
Datastream
DTE G24
UARTSerialMgr
C
h
a
n
n
e
l
1
App1 App2 App3 App n
UARTSerialMgr
C
h
a
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1
App1 App2 App3 App n
HW/SWFC ,
Datastream
MUXControl
andData frames
Open/closedchannels
Echo )test(
Open/ClosedMux
FlowC ontrol
PureData per
channel

DTE

DTE

UARTSerialMgrMux-protocol
C
h
a
n
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l
1
App1
C
h
a
n
n
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l
2
C
h
a
n
n
e
l
3
C
h
a
n
n
e
l
4
Channel 0
1
App2 App3 Appn

g20

G24

UARTSerialMgrMux-protocol
C
h
a
n
n
e
l
1
App1
C
h
a
n
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l
2
C
h
a
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3
C
h
a
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4
Channel 0
1
App2 App3 Appn