Connect Tech Blue Heat/PCI PCI Serial Communications Manual De Usuario
Blue Heat/PCI User’s Manual, Connect Tech Inc.
Revision 0.11
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Blue Heat/PCI RS-422/485 (6+2 model)
The Blue Heat/PCI RS-422/485 (6+2 model) offers full RS-422/485 support in hardware like the
other Blue Heat/PCI RS-422/485 models. The modes include full duplex, half duplex, and multi-
drop slave. The Blue Heat/PCI RS-422/485 (6+2 model) offers the following additional
functionality.
other Blue Heat/PCI RS-422/485 models. The modes include full duplex, half duplex, and multi-
drop slave. The Blue Heat/PCI RS-422/485 (6+2 model) offers the following additional
functionality.
Tri-state Control
The Blue Heat/PCI RS-422/485 6+2 model allows you to tri-state the line drivers on power up.
To tri-state the drivers on power up please make certain there is no jumper installed across the
pins on jumper block JI. Please refer to
The Blue Heat/PCI RS-422/485 6+2 model allows you to tri-state the line drivers on power up.
To tri-state the drivers on power up please make certain there is no jumper installed across the
pins on jumper block JI. Please refer to
for the location of J1.
Line Bias/Termination
You can use jumpers J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, and J13 to terminate and bias
TxD ±, RxD ±, RTS ±, and CTS ± on the RS-422/485 ports 7 and 8. Please refer to
You can use jumpers J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, and J13 to terminate and bias
TxD ±, RxD ±, RTS ±, and CTS ± on the RS-422/485 ports 7 and 8. Please refer to
for
a partial schematic of the RS-422/485 circuit for the Blue Heat/PCI RS-422/485 (6+2 model)
and Figure 4 for the location of J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, and J13.
and Figure 4 for the location of J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, and J13.