TPMC861
TPMC861 4 Channel Isolated RS422 Interface
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TPMC861 4 Channel Isolated RS422 Interface Module
 The TPMC861 is a standard single-width 32 bit PMC module with four channels of high performance RS422/485-HD/FD serial interface. Each of the four channels is isolated from the system and against each other by optocoupler and on board DC/DC converter per channel.
The serial channels are accessible through a DB25 connector mounted in the front panel and via P14 I/O. Each channel has a 128byte transmit FIFO and a 128byte receive FIFO to significantly reduce the overhead required to provide data to and get data from the transmitter and receivers. The FIFO trigger levels are programmable. For RS422 and RS485-FD a four wire interface (RX+, RX-, TX+, TX-) plus isolated ground (GND) per channel is supported. For RS485-HD a two wire interface (DX+, DX-) plus isolated ground (GND) per channel is supported. The baud rate is individually programmable up to 460.8Kbaud for each channel. The interrupts are supported. All channels generate interrupts on PCI interrupt INTA. For fast interrupt source detection the TPMC861 provides a special interrupt status register. Each receiver input and transmitter output of all channels is protected against electrostatic discharge (ESD) up to +/- 15kV according to IEC 1000-4-2. Technical Specifications
| Logic Interface |
PCI Mezzanine Card Interface |
| Size |
Single Size CMC |
| PCI Target Chip |
PCI9030 (PLX Technology) |
| PCI I/O Signaling Voltage Keying |
3.3V, 5V tolerant |
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UART Controller |
XR16C864 (4 channel UART, RS422/485) |
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Number of UART Channels |
4 |
| FIFO |
128byte transmit FIFO, 128byte receive FIFO per channel |
| Interrupts |
PCI INTA for all channels, on board interrupt status register |
| I/O Signals/Channels |
TX+, TX-, RX+, RX-, isolated GND |
| Maximum Transfer Rate |
Each channel programmable up to 460.8 kbaud |
| ESD-Protection |
+/- 15kV Human Body Model, +/- 6kV IEC1000-4-2 model |
| I/O Interface |
DB25 female connector, 64 pins Mezzanine P14 I/O |
| Power Requirements |
177mA typical @ +3.3V 456mA typical @ +5V |
| Temperature Range |
Operating: -40°C to +85°C Storage: -55°C to +125° C |
| Weight |
85g |
| Humidity |
5 - 95% non-condensing |
| MTBF |
210613h |
Manuals
 TPMC861 |
Data Sheet |
| TPMC861-DOC |
User Documentation for TPMC861 |
| TPMC861-SW-42 |
VxWorks Software Support for TPMC861 |
| TPMC861-SW-72 |
LynxOS Software Support for TPMC861 |
| TPMC861-SW-82 |
LiNUX Software Support for TPMC861 |
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