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Serial Server Software Overview
Windows 2000/NT 4.0
© National Instruments Corporation
The LEDs show the current status of the serial device server. Table 1-1
describes each LED.
LED
PWR/RDY
LINK 10/100
TX
RX
PORT x
The serial server software for Windows 2000/NT includes a native
Windows 2000/NT kernel driver that provides full interrupt-driven,
buffered I/O for multiple COM ports. Using this driver, you can obtain a
maximum baud rate of 460.8 kbits/s for the ENET-485 and 230.4 kbits/s for
the ENET-232.
The serial server software includes the following components:
•
Device driver
•
Serial Configuration utility (NI Ports)
•
NI Ethernet Device Configuration utility
•
Serial Device Server Diagnostics utility
•
NI Ethernet Device Firmware Update utility
Table 1-1. LED Descriptions
Description
Flashes rapidly at start-up while performing self
tests and when acquiring network parameters. A
steady yellow state indicates the box is ready for
operation. Slow flashing pattern indicates an error
occurred.
Indicates the serial device server detected a twisted
pair (10Base-T or 100Base-TX) link. The color
indicates the connection speed. If yellow, the speed
is 10 Mbits/s. If green, the speed is 100 Mbits/s.
Indicates the serial device server is transmitting to
the Ethernet network.
Indicates the serial device server is receiving
Ethernet network traffic.
Indicates which serial ports are open.
1-5
ENET-232 and ENET-485 Series User Manual
Chapter 1
Introduction
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