Serial Data Communication for Modbus
(
5
)
ChatterisequippedwithRS-485serialdatacommunications .Seeposition
“
5
”inFigure2 .
RS-485 Serial Data Communication for Modbus
Terminal
Designation/function
A(RS485)
SignalA
B(RS485)
SignalB
GND(RS485)
Ground
GND
Ground
Table7 .RS-485SerialDataCommunication
Other Main Components on the Circuit Board
Battery
(
6
)
ThebatteryislocatedontopoftheChatterPCB(seeFigure3) .Connec-
tionisthroughaconnectorplacedinthemiddleofthecircuitboard(“Bat-
tery”,redandblackwires) .
PleasenotethatthebatterycanbereplacedwithoutfirstsettingtheChat-
terunitin”OFF”position .
Seesection
6. Gain Access to SIM Card and Battery
andsection
Internal Installation in the Chatter Unit
forgainingaccesstoandchang-
ingthebattery .
Jumper
(
7
)
Ajumperisplacedrightbelowthebatterywithtwopositions:ONand
OFF .InONpositiontheChatterincl .pressuretransmitterispowered(acti-
vated),andinOFFpositionitisdisconnected(switchedoff) .
Booster Capacitor
(
8
)
Theboostercapacitordeliverscurrentduringdatatransmissions .
SIM Card
(
9
)
TheSIMcardfacilitatecommunicationviatheGSM/GPRSnetwork .
Seealsotheprocedureforinserting/changingtheSIMcardinsection
7. Internal Installation in the Chatter Unit
onpage
Data Logger
12
EN 6.10 Chatter Hardware Manual 1511
Summary of Contents for MJK Chatter
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