3–2
MULTILINK ML600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
INSTALLATION
CHAPTER 3: INSTALLATION
3.2
Electrical Installation
3.2.1
Power Requirements
The MultiLink ML600 Ethernet Switch is power-efficient and can work DC power or an
external AC power supply. The AC adapter input jack has a 2.5 mm plug, center positive,
with a 6 foot length of cord. Refer to
Technical Specifications
on page 1–3 for additional
details.
The ML600 is designed to be used with UL listed Class II power supplies.
The DC power option has a built-in terminal block for positive, negative, and ground. Detail
specifications on the 24 and 48 V DC options is available in
Technical Specifications
on
page 1–3.
When connected to a 48 V DC centralized source, the ML600 should only be installed only
in restricted access areas (dedicated equipment rooms, electrical closets or the like).
3.2.2
Connecting DC Power
The DC terminal block is located on the rear of the unit and is equipped with three (3)
screw-down lead posts. The power terminals are identified as positive (+) and negative (–),
and they are floating inside the unit so that either of the terminals may be grounded. The
chassis is “earth” or ground (GND).
Figure 3-1: DC power terminals
The connection procedure is straightforward. Simply insert the DC leads to the ML600
power terminals, positive (+) and negative (–) screws. The use of ground (GND) optional; it
connects to the ML600 chassis. Ensure that each lead is securely tightened from the top.
Always use a voltmeter to measure the voltage of the incoming power supply and
determine the positive or negative potential lead. The more positive potential lead will
connect to the post labeled “+ve” and the rest to the “–ve”. The ground can be hooked up
last
When power is applied, the green PWR LED will illuminate.
NOTE
NOTE
