The Delock PCI Express card expands the computer with two external serial RS-422/485 ports. For devices such as scanners, protocol switches, POS systems, infrared, IoT devices, etc. and can be used for different modes.
The PCIe card supports 2- and 4-wire operation on both connections for RS-422 and RS-485 devices. Furthermore, the built-in periodic resistors can be used as desired, thus eliminating unwanted signal interference.

RS-422 or RS-485 settings

The settings can be controlled using jumpers on the PCIe card and provides the following modes: Auto Detect, RS-422 and RS-485 4-wire full duplex and RS-485 2-wire half duplex.

Low profile form factor

With the included low-profile bracket, you can insert the PCI Express card into a Mini-PC.

- Connector:
- External: 1 x DB44 sleeve
- Connection cable: DB44 plug > 2 x serial RS-422/485 DB9 plug
- Internal: 1 x PCI Express x1, V2.0
- Chipset: MaxLinear XR17V352, SP3078E
- Data transfer at a speed of up to 1 Mb/s
- FIFO: 256 bytes
- 16C550 UART compatible
- Data bit: 5, 6, 7, 8
- Stop bit: 1, 1.5, 2
- Parity: even, odd, none, sign, space (space)
- Flow control: XON / XOFF, RTS / DTR, CTS / DSR
- RS-485 automatic half duplex data transfer control
- Protection for open, short circuit or intermittent input lines
- LED states: TX, RX
- ±15 kV ESD protection on all connector pins (HBM)
- ±15 kV IEC 61000-4-2 Discharge through air
- ±8 kV IEC 61000-4-2 Touch discharge
- I/O address and IRQ assignment by BIOS
- Possible periodic resistance 120 ohms