EtherWAN EX75900 Series Installation Manual

Unpacking

Open the carton and unpack the items. Your package should include:
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One EX75900 switch
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One RJ-45 console cable
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Rack-mounting hardware brackets
If any items are missing or damaged, notify your EtherWAN representative. If
possible, save the carton and packing material in case you need to ship or store the
switch in the future.

What Else You Need

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Appropriate cables for data ports. To prevent damage to the switch from
electrical surges, it is recommended to use STP (Shielded twisted pair)
cabling.
▪
Personal computer or laptop

Select a Location

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Desktop installations: Mount on a flat table or shelf surface.
▪
Rack installations: Use a 19-inch (48.3-centimeter) EIA standard equipment
rack that is grounded and physically secure.
▪
Choose a dry area with ambient temperature between -40 and 75ºC (-40
and 167ºF).
▪
Keep away from heat sources, sunlight, warm air exhausts, hot-air vents,
and heaters.
▪
Be sure there is adequate airflow.
EX75900 Series | Hardened Managed PoE Ethernet Switch

Connect to the Data Ports

Depending on the model, your switch can have the following ports:
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24 10/100/1000Base-TX PoE ports
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4 1G SFP or 4 1G/10G SFP slots

10/100/1000BASE-TX Ports

Ports that support Power over Ethernet provide power to networked devices such
as IP Phones, Wireless LAN Access Points, and IP security cameras. Total power
budget is 720 Watts, 60 Watts per port.

1G/10G SFP Ports

SFP transceivers can be installed directly into SFP slots. Ensure that the same type
of transceiver is used at both ends of the link and that the correct type of fiber
cable is used.

Connect DC Power

The switch has two terminal block power inputs. Only one power input is required
to operate the switch. However, redundant power supply functionality is
supported. Input voltage is 52-57 VDC.

Relay Output Alarm

The switch provides relay output contacts for signaling of a user-defined power or
port failure. The relay output can be connected to an alarm signaling device.
Current is 0.5A at 48VDC.
3 Normal Open | 2 Ground | 1 Normal Close
Copyright 2022 EtherWAN Systems, Inc. All Rights Reserved 12/26/2022
Installation Guide

Power-Up Sequence

When the switch is powered up:
▪
All Link/ACT LEDs blink momentarily.
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The Power LED light goes ON.
Booting ⮕ The Alarm LED goes ON
▪
System ready ⮕ The Alarm LED goes off
▪

Front Panel LEDs

LED Color Status
On: Power on
Power 1 & 2 Green
Off: Power off
Link/Act On: Network connection established
Green
Flashing: Port sending or receiving data
ON = Powered Device is connected
PoE Amber
Off = Powered Device is disconnected
Alarm Red Link down or power down
Digital IO-Setting

Connecting the Digital Inputs

The pin definitions for the digital input module are shown below. Each digital input
consists of two contacts on the 5-pin connector located on the top of the switch. The
inputs can be wired as either dry or wet contacts.
Dry Contacts:
[DI1-/GND] [DI2-/GND]
Logic level 1: Close to GND
Logic level 0: Open
Wet Contacts:
[DI1+/DI1-] [DI2+/DI2-]
Logic level 1 (High): 13~30 Volts
Logic level 0 (Low): 0~3 Volts

Configuring Digital Input Alarms Using the Web Interface

Located under the Diagnostics group, the Digital IO-Setting page allows for quick
configuration and enabling of digital input and environmental alarms.
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