OT Systems ET2111 series - Manual (Page 8)

ET2111 Series Installation & Operation Manual
www.ot-systems.com 8
3.3 Selecting a site for the Switch
As with any electric device, you should place the switch where it will not be subjected
to extreme temperatures, humidity, or electromagnetic interference. Specifically, the site
you select should meet the following requirements:
- The ambient temperature should be between -20 to +60 degrees Celsius.
- The relative humidity should be less than 95 percent, non-condensing.
- Surrounding electrical devices should not exceed the electromagnetic field (RFC)
standards.
- Make sure that the switch receives adequate ventilation.
- The power outlet should be within 1.8 meters of the switch.
3.4 Connecting to Power
Standalone Wall-mount Card module
Rear panel
* The 5-PIN golden finger should be inside the square space that reserve for power input from the 5-PIN connector at ET-C12. The DC
Jack should be covered by the cover panel for power of the card model by using 2 screws.
3.4.1 Standalone Wall-mount
Power Input Assignment
DC IN 12V
Inner 12V
Outer GND
Size of DC JACK outside diameter (OD): 2.5mm;
Length of the DC Jack:9.5mm
The tip (i.e. the inner conductor) carries the positive (+) pole.
DC Jack Power Input
Step 1: Connect the DC power cord to the DC jack on the rear of switch and then plug it
into a standard DC outlet.
Step 2: Disconnect the power cord if you want to shut down the switch.
3.4.2 Card module
DC Power Input
Step 1: Connect the DC power cord at the rear of ET-PSU/5V and then turn it on for
power up the card modules within the ET-C12.
Step 2: The Card Module can be removed as slide-out module form the ET-C12 (12-slot
Rack Mount Chassis). “Hot-swap” allows any module to be removed and
restored without affecting the operation of any other. Or switch off the
ET-PSU/5V to shut down all switches in the ET-C12.