EtherWAN EX78900E Series Installation Manual

Unpacking

Open the carton and unpack the items. Your package should include:

One EX78900E hardened managed switch

One RJ-45 console cable
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


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

Appropriate SFP modules for SFP ports

Select a Location


Installations: DIN-Rail mount.

Select a power source within 6 feet (1.8 meters).

Choose a dry area with ambient temperature between -40 and 75ºC (-40
and 167ºF).

For use at altitudes up to 2000 meters, indoor use only.

Humidity range (Operational): 5% to 95%, non-condensation

Connect to the Data Ports

Depending on the model, your switch can have the following ports:
EX78922E-0VB 8-port 10/100/1000BASE-T (4 x 30W, 4 x 60W PoE)
2-port 100/1000M SFP
EX78924E-0VB
8-port 10/100/1000BASE-T (4 x 30W, 4 x 60W PoE)
4-port 100/1000M SFP
EX78934E-0VB 12-port 10/100/1000BASE-T (8 x 30W, 4 x 60W) PoE
4-port 100/1000M SFP
10/100/1000BASE-TX (PoE) Ports
Ports that support Power over Ethernet provide power to networked devices such
as IP Phones, Wireless LAN Access Points, and IP security cameras with a power
budget of 240 Watts.
100/1G 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 Power


The switch has two pairs of power inputs.

Only one power input is required to operate the switch. However,
redundant power supply functionality is supported.

Power rating: 52V/4.97A 57V/4.54A

Note: Use qualified power supply by SELV or double insulation of UL60950
or UL61010-1 or UL61010-2-201 standards.
EX78900E Series | Hardened Managed Ethernet Switch
Switch

Terminal Block

The switch provides two power inputs on a 52-57VDC terminal block. The
terminal block has 5 terminal posts.
Pin Description

52-57VDC
Power 1

Power Ground

52-57VDC
Power 2
- Power Ground
Earth Terminal
Relay Output
0.5A @48VDC
Rating
Relay Output Alarm
The switch provides two relay output contacts. Both Relay 1 and Relay 2 signal
actions from one of the digital inputs. The relay outputs can be connected to an
alarm signaling device. The Current is 0.5A@48VDC at Normal Open or Normal
Close.
3 Normal Open | 2 Ground | 1 Normal Close

Power-Up Sequence

When the switch is powered up:

All Link/ACT LEDs blink momentarily.

The Power 1 LED light goes ON.

LEDs for every port connected to a device will flash, as the switch conducts a
brief Power On Self-Test (POST).
Copyright 2022 EtherWAN Systems, Inc. All Rights Reserved 12/26/2022
Installation Guide

Front Panel LEDs

LED Color Status
On: Power on
Power 1 & 2 Green
Off: Power off
On: Network connection established
Link/Act 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
Front View
W70G-EX78900EQ4
Top View
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