Interlogix NS3550-8T-2S, NS3552-8P-2S, NS3550-2T-8S, NS3553-4P-1T-2S, NS3552-8P-2S-V2 Quick Installation Manual

© 2019 United Technologies Corporation. P/N 1072772-EN • REV C • ISS 01FEB19
Interlogix is part of UTC Climate, Controls & Security, a unit of United Technologi es Corporat i on. Al l rights reserved. Al l trademarks are the
property of their respective owners. Information in this document is subject to change without notice.

NS3550-8T-2S Quick Installation G uide

Figure 1: NS3550-8T-2S Industrial L2+ Multi-Port Managed
Ethernet Switch

Package contents

Thank you for purchasing the NS3550-8T-2S IFS L2+ industrial
managed switch. The description of this model is as follows:

 Industrial L2+ 8-Port 10/100/1000T
 + 2-Port 100/1000X SFP Managed Switch

Unless specified, the term “industrial mana ged sw itch”
mentioned in this quick inst all a tion guid e refers to the NS3550­8T-2S.

Open the box of the industrial managed switch and carefully
unpack it. The box should contain the following items:

 The industrial managed switch × 1
 Quick installation guide × 1
 CD with user manual × 1
 DIN rail kit × 1
 Wall mounting kit × 1
 Dust cap (see the table below)

RJ45 Dust Cap

SFP Dust Cap

NS3550-8T-2S 8 2

If any of these are missing or dama ged, contact your dealer
immediately. If possible, retain the carton including the original
packing materials for repacking the product in case there is a
need to return it to us for repair.

Requirements

The industrial managed switch provides a remote login
interface for management purposes. The following equipment
is necessary for further management:

 Workstations running Windows

®

XP / 2003 / Vista / 7 / 8 /
2008 / 10, MAC OS X or later, Linux, UNIX, or other
platforms are compatible with TCP/IP protocols.

 Workstations are installed with Ethernet NIC (Network

Interface Card).

 Serial port connection (Terminal)

 The above workstations come with a COM Port (DB9)

or USB-to-RS-232 converter.

 Ethernet port connection

 Network cables – Use standard network (UTP) cables

with RJ45 connectors.

 The above workstations have a web browser and

JAVA runtime environment plug-in installed.

Note: We recommend using Internet Explorer 8.0 or later to
access the industrial managed switch. If the web interface of
the managed switch is not accessible, turn off the anti-virus
software or firewall and then try it again.

Wiring the power inputs

The upper panel of the industrial managed sw it ch indicates a
DC inlet power socket and consists of one terminal block
connector within six contacts. Follow the steps below to insert
the power wire:

1. Insert the positive/negative DC power wires into contacts 1
and 2 for Power 1, or 5, and 6 for Power 2.

NS3550-8T-2S: DC 12 to 48 V

Figure 2: Managed industrial switch upper panel

2 / 4 P/N 1072772-EN • REV C • ISS 01FEB19

2. Tighten the wire-clamp screws to prevent the wires from
loosening.

1 2 3 4 5

6

V-

V+

V-

V+

Power 1

Power 2

Positive (+) Pin Negative (-) Pin

NS3550-8T-2S Pin 2/6 Pin 1/5

Note: The wire gauge for the terminal block should be in the
range from 12 to 24 AWG.

Mounting

Note: Ensure that the industrial managed switch is mounted

vertically with the power connectors on the top and a minimum
of three inches above and below the switch to allow for proper
air flow. This device uses a convection flow of hot air which
rises and brings cold air in from the bottom and out of the top
of the device. Do not mount the switch horizontally as this does
not allow air to flow up into the device and will result in damage
to the switch. Do not tie DC1 to DC2. DC2 is for secondary
power redundancy. Do not plug DC power into the device while
the AC power cord is plugged in. This is not a hot-swappable
switch. Hot-swapping this device will result in damage.

DIN-rail mounting installation

To replace the wall-mount application with DIN-rail application
on industrial gigabit Ethernet switch, refer to the following
figures to screw the DIN-rail on the industrial gigabit Etherne t
switch.

To hang the industrial gigabit Ethernet switch, follow the steps
below:

1. Screw the DIN-rail on the industrial gigabit Ethernet
switch.

2. Place the bottom of DIN-rail lightly into the track.

3. Ensure that the DIN-rail is secured to the track.

To remove the industrial gigabit Ethernet switch from the track,
carefully pull out the bottom of the DIN-rail to remove it from
the track.

Wall-mount plate mounting

To install the industrial gigabit Ethernet switch on the wall,
follow the steps below.

1. Remove the DIN-rail from the industrial gigabit Ethernet
switch. Loosen the screws to remove the DIN-rail.

2. Place the wall-mount plate on the rear panel of the
industrial gigabit Ethernet switch.