NIS NIS-S991 Fanless Embedded Computer User Manual

This user manual covers the installation, BIOS settings, and software configuration for the NIS NIS-S991 fanless embedded computer.

NIS NIS-S991 Fanless Embedded Computer User Manual - cover page
Brand
NIS
Document type
User Manual
Language
English
Pages
54
File format
PDF
File size
2.7 MB
Published
16 October, 2026
Updated
16 October, 2026
MD5 checksum
BEB9D0D49B8040A8FE915E7EFC6DC033
PDF
NIS NIS-S991 Fanless Embedded Computer User Manual PDF

About this manual

The NIS-S991 is a fanless embedded computer designed with Intel SkyLake series low-power processors. It features dual Gigabit LAN ports, multiple serial interfaces (RS232/485), USB 3.0/2.0 ports, and support for 3G/4G communication modules. The device operates on a wide DC input voltage range of 9V to 30V.

What's inside

  • Product Introduction
  • Hardware Installation
  • BIOS Settings
  • Software Installation
  • Safety Guidelines
  • I/O Interface Definitions
  • System Specifications

Specifications

ProcessorIntel SkyLake Celeron/Core i3/i5/i7 U series
Memory TypeDDR3 Low Voltage SODIMM
Display Interfaces1x DVI, 1x VGA
Network Ports2x Isolated POE Intel I210 Gigabit LAN
Serial Ports4x RS232 (2 optional RS232/485)
USB Ports4x USB 3.0/2.0, 4x USB 2.0
Power Input9V to 30V DC wide range

Frequently asked questions

What is the operating temperature range for the NIS-S991?

The device should not be used in environments below -20°C (-4°F) or above 70°C (140°F).

Can the NIS-S991 support 3G/4G communication modules?

Yes, it supports 3G/4G communication modules via a MiniPCIe X1 interface.

What is the warranty period for NIS products?

NIS provides a two-year product quality guarantee from the date of purchase.

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