QUICKSTART GUIDE
3.2 Powering the Unit - ML1600
Units with the AC power supply option can be connected directly to 110/240 V AC with the supplied power cord.
The terminal block for the HI and LO option on the Unit is located on the left front of the unit and is equipped with three (3)
may be grounded by the user if desired. The chassis is “earth” or ground ( 
).
The connection procedure is straightforward. Simply insert the DC leads to the Unit power terminals, positive (+) and negative
FIGURE 8: Power connection and alarm contacts
Always use a voltmeter to measure the voltage of the incoming power supply and properly determine the positive or negative leads.
NOTE
The GND ( 
) should be hooked up first. The Unit has a floating ground, so the user may elect to ground either the positive or negative terminal.
NOTE
When power is applied, the green PWR LED will illuminate.
3.3 Powering the Unit - ML1200/ML800
The DC internal power supply supports installation environments where the DC voltage is from 18 to 150 volts depending on the model selected. The power consumption will range from about 20 up to 35 watts, depending on the port quantity and types in the configuration.. When connecting the Ethernet cabling, there is no need to power down the unit. Individual cable segments can be connected or disconnected without concern for
Power input options are available to suit the ML1200/ML800 Switches to special high- availability communications and/or heavy
•
•
External AC power supplies are optional, see Section 1.2 of the Reference Manual for
Ordering Information.
10 | MULTILINK ETHERNET COMMUNICATIONS SWITCH – QUICKSTART GUIDE |