PalmSens EmStat3+ - Connecting to PC Via RS232 Converter; 2 Printed Circuit Board Layout

Getting started with the EmStat3+ module for OEM 5
Getting started with the EmStat3+ module for OEM
1.4 Connecting to PC via RS232 converter
Any TTL to RS232 converter can be used to enable RS232 communications with the EmStat module.
These modules all share the same connections; Rx, Tx, VCC and GND.
Connect the SparkFun TTL-RS232 converter or any other similar converter as following:
2 Printed Circuit Board Layout
EmSta3+ PCB layout
The board has two pin headers: CON1 and CON2
CON1 is used to connect for instance the MUX multiplexer or any other peripheral.
CON2 is used when serial TTL communications is used and provides also an external analog input and
analog output line, with a range of 0 - 4.095 V.
CON11 12
CON2
12
CON4
1
4
2
3
IC17
Mini
USB
55.13 mm
41.0 mm
If using a null modem cable
between EmStat and
PC/controller:
EmStat:
Rx: CON2 – PIN2
Tx: CON2 – PIN1
VCC: CON1 – PIN5
GND: CON1 – PIN6
If connecting directly to
PC/controller:
EmStat:
Rx: CON2 – PIN1
Tx: CON2 – PIN2
VCC: CON1 – PIN5
GND: CON1 – PIN6