Unpacking
Open the carton and unpack the items. Your package should include:
▪
One EX78934X hardened managed switch
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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
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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
▪
For use in Pollution 2 environment.
▪
Do not block the device ventilation holes.
Connect to the Data Ports
Depending on the model, your switch can have the following ports:
12-port 10/100/1000BASE-T(12 x 90W) PoE
EX78934X-0VB
+ 4-port 1G/10G SFP+
12-port 10/100/1000BASE-T(12 x 90W) PoE
EX78934X-0VB-CC
+ 4-port 1G/10G 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 360 Watts.
PoE 90W Limitation
When using PoE ports at 90 Watts, use PoE ports – 1, 4, 8, and 9 for 90W PoE. See
example below:
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.
W70G-EX78900XQ3
Page 1
EX78900X Series | Hardened Managed Ethernet Switch
Switch
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:
▪
PoE 30 Watts per port: 52–57 VDC, 7.3-6.7 A
▪
PoE 90 Watts per port: 54–57 VDC, 7.1-6.7 A.
▪
The power input specification complies with the requirements of SELV
(Safety Extra Low Voltage), and the power supply should comply with UL
61010-1 and UL 61010-2-201.
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
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.
▪
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).
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
Link down or power down
Alarm
Red
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