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Technical description, Specifications – Impulse 2106 User Manual

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Technical Description

Sealevel Systems SeaLINK+422

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Technical Description

The SeaLINK+422: utilizes a USB UART. This chip features programmable baud rate, data format, 128 byte Dual
Port TX Buffer, and 384 byte Dual Port RX Buffer. The RS-422 transceiver supports data rates up to 921.6K baud.

Features

• Hot-Pluggable device

• Does not require opening the case

• No system resources are required (i.e. I/O ports or IRQs)

Connector Pin Assignments (DB-9 Male)

Signal Name

Pin

#

Mode

RX+

Receive Positive

1

Input

RX-

Receive

Negative 2 Input

TX+

Transmit Positive

4

Output

TX-

Transmit Negative

3

Output

GND Ground

5

NC

6,7,8,9