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Hardware and Connectivity 25
Power Supply Specifications
Power Supply Specifications
Desktop Models
Serial Only Models
If you are providing a power supply for a desktop IOLAN model, your power supply must meet the
following requirements:
z Output between 9-30V DC.
z DC barrel connector: The cable attached to the power supply should be about 20AWG, length 6
feet approx. The barrel dimensions of the cable-plug are OD=5.5, ID=2.1, and length= 9.5mm,
with a straight barrel, and positive polarity on the inside and negative polarity on the outside.
z Power can also be provided by:
z Serial Port 1, pin 1 on the DS model
z Serial Port 2, pin 1 on the TS2 model
I/O Models
The power supply for a desktop IOLAN I/O model must meet the following requirement:
z Output between 9-30V DC and a minimum of 600mA current
z 20 AWG wire
Note:
The maximum load for the Relay channel is 1A @ 30VDC or 0.5A @ 120VAC.
Getting to Know Your IOLAN
This section describes the hardware components found on your IOLAN unit.
Overview
All IOLANs have the same basic hardware components to allow you to connect to serial devices,
connect to the network, monitor LAN and serial activity, and manage the unit. Below is a list of these
components:
z Serial Port(s)—Connector(s) that will be used to connect to a serial device.
z Activity—This LED flashes to indicate LAN activity.
z Link10/100—This LED indicates the Ethernet connection speed for desktop models:
– Green—10 Mbits
– Yellow—100 Mbits
–Off—no LAN connection
z Power/Ready—This LED can cycle through several colors (yellow, green, red) during a boot
process, but should complete with a green light. If the LED is green after power up but continues
to cycle on and off (flashes green), this indicates that the console switch is in the on position.
You can learn more about the Power/Ready LED in
Hardware Problems .
z External Power Supply—This is an external AC power supply.
z Console/Serial Switch—This switch determines whether serial port 1 functions as a serial port
or a console port. If you have an I/O model, you will see two console switches. Console/Serial
Switch 1 is used to determine the console/serial setting for Port 1 and the Console/Serial Switch
2 is not used.
z Reset—The inset RESET button will reboot the IOLAN if pushed in and released quickly. It will
reset the IOLAN to factory defaults if pushed in and held for more than three seconds.