BDM-610000083
Rev L
Chapter 3: Connecting the cpuModule
43
Table 26
COM A (RS-422) and COM B (RS-422)
1
1. Dual RS-485 mode with echo uses dual RS-422 mode pinout
Pin
Signal
Function
In/Out
DB-9
1
TXD1-
COM A- Transmit Data(-)
out
1
2
TXD2-
COM B- Transmit Data (-)
out
6
3
TXD1+
COM A - Transmit Data (+)
out
2
4
TXD2+
COM B - Transmit Data (+)
out
7
5
RXD1+
COM A - Receive Data (+)
in
3
6
RXD2+
COM B - Receive Data (+)
in
8
7
RXD1-
COM A - Receive Data (-)
in
4
8
RXD2-
COM B - Receive Data (-)
in
9
9,10
GND
Signal Ground
—
5
Table 27
COM A (RS-485) and COM B (RS-485)
Pin
Signal
Function
In/Out
DB-9
1
D1-
COM A- Data (–)
in/out
1
2
D2-
COM B - Data (–)
in/out
6
3
D1+
COM A - Data (+)
in/out
2
4
D2+
COM B - Data (+)
in/out
7
5
—
Reserved
—
3
6
—
Reserved
—
8
7
—
Reserved
—
4
8
—
Reserved
—
9
9,10
GND
Signal Ground
—
5
Summary of Contents for cpuModules CMA34CR
Page 3: ...Accessing the Analog World www rtd com ISO9001 and AS9100 Certified CMA34CR cpuModules...
Page 4: ...iv CMA34CR cpuModule BDM 610000083 Rev L...
Page 34: ...26 CMA34CR cpuModule BDM 610000083 Rev L...
Page 60: ...52 CMA34CR cpuModule BDM 610000083 Rev L...
Page 84: ...76 CMA34CR cpuModule BDM 610000083 Rev L...
