User manual

Chapter 3. Installation
20 Version 1.2 Apr 2006
3.4 Electrical Installation
3.4.1 Power connection
For a model with AC power supply, AC power (90~250VAC) is supplied to the Fiber
Multiplexer through a standard IEC 3-prong receptacle, located on the rear of the chassis. For a
model with DC power supply, DC –48V (20~60VDC) is connected to the terminal block, observing
the proper polarity. In the AC/DC model, both IEC receptacle and DC terminal block are provided
for dual power operation. The Fiber Multiplexer should always be grounded through the
protective earth lead of the power cable in AC installations, or via the frame ground connection for
DC installations.
Figure 3-2 : Supply connections, AC/DC model shown
Mains
Switches
AC IN
Connector
DC IN
Terminal
Block