Vision Systems VScom 200E PCIex Manual do Utilizador descarregar pdf (Página 9)

2 Introduction

Bus interface PCIe x1 PCI Express, max. 500 MByte/s

Serial Ports 2 RS 232, RS 422 plus 3 modes of RS 485

Connectors 2×DB9 male Standard for RS 232

Termination Built-In Conﬁgured for RS 422 and RS 485

BIAS Built-In Conﬁgured for RS 485 modes

Signals RS 232 RxD, TxD, RTS, CTS, GND

RS 422 Rx±, Tx±, RTS±, CTS±, GND

RS 485 Full Duplex Rx±, Tx±, GND

RS 485 Half Duplex Data±, GND

Max. Bitrates Theoretical 15.625 Mbit/s

RS 232 230,400 bit/s due to surge protection

RS 422, RS 485 1 Mbit/s due to surge protection

Table 2: Features of VScom 200Ei-SI PCIex

The operation mode is conﬁgured via the small DIP switches according to table 7. The RS 485

modes require the driver conﬁgured for Automatic DTR as “RS 485 Low Active”, as seen in 4.2.3.

Also resistors for Termination and BIAS option are built-in, conﬁgured by other switches as of

table 8.

2.2.3 VScom 200I UPCI

The VScom 200I UPCI card features two serial ports, available via a classic PCI slot.

Figure 3: VScom 200I UPCI

The maximum speed is 921.6 kbit/s. This can be reduced to 115,200 bit/s for compatibility issues,

using jumper JP1.

July 2011 VScom Industrial Card User Manual 9

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Vision Systems VScom 200E PCIex Manual do Utilizador Página 9