Echelon SmartServer 2.2 Hardware Instrukcja Użytkownika Pobierz pdf (Strona 18)

Connecting the Screw Terminals

The SmartServer has two rows of screw terminals located on the top and bottom edges of the

enclosure. The screw terminals on the bottom row are numbered 1 to 12 (from left to right), and the

screw terminals on the top row are numbered 13 to 28 (from right to left). There is no polarity for DC

connections.

The screw terminals accept 0.22mm – 3.3mm (22 – 12AWG) gauge solid wire. The optimum

tightening torque for the screw terminals is 0.75 Newton-meters (6 lbs. in.) maximum. The ideal

flathead screwdriver tip width for use with the screw terminal connectors is 3mm (0.12”). Strip wires

to a length of 7mm (0.28”). Optionally, you can use a soldering iron to tin the stripped lengths of any

stranded wires to prevent fraying and inadvertent contact with adjacent terminals.

The screw terminals are divided into the following groups, which are each detailed in the subsequent

sections.

• Power supply

• L

ONWORKS network

• RS-232/RS-485 serial ports

• Digital outputs

• Pulse meter inputs

• Digital inputs

• +12V<20mA output

Power Supply

The SmartServer is powered by a 100/240V AC, -6% to +10%, 50/60Hz VAC power mains

connection.

Safety Warning

When connecting a unit, always connect earth ground first, then Neutral, and then Line.

This minimizes the risk of shock or damage should power inadvertently be present on

Line.

Safety Warning

Fuse F350 in the SmartServer uses a Wickmann rated 250 VAC, .5 A, SLO-BLO fuse,

and it is not field replaceable.

6 Assembling the SmartServer Hardware

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Echelon SmartServer 2.2 Hardware Instrukcja Użytkownika Strona 18