ET8122P Series
Unmanaged Industrial 8-port 10/100Base-TX + 2-Port 10/100/1000T/FX SFP Combo Ethernet
Switch with PoE/PSE
1
This quick start guide describes how to install and use the hardened Ethernet Switch. Capable of operating at temperature extremes of -40°C to
+75°C, this is the switch of choice for harsh environments constrained by space.
Physical Description
The Terminal Block and Power inputs
The Terminal Block
PWR1
Power Input 1 (48VDC)
GND
Power Ground
PWR2
Power Input 2 (48VDC)
GND
Power Ground
Earth Ground
FAULT
The relay opens if PWR1 or PWR2 fails (1A)
DC Terminal Block Power Inputs: There are two pairs of power inputs can be used to power up this media converter. Redundant power supplies
function is supported. You only need to have one power input connected to run the Switch.
The 10/100Base-TX and Mini-GBIC combo port
The 10/100Base-TX Connections
The following lists the pinouts of 10/100Base-TX ports.
Pin
Regular Ports
Uplink port
1
Output Transmit Data +
Input Receive Data +
2
Output Transmit Data -
Input Receive Data -
3
Input Receive Data +
Output Transmit Data +
4
NC
NC
5
NC
NC
6
Input Receive Data -
Output Transmit Data -
7
NC
NC
8
NC
NC
