Specifications

CHAPTER 3: Installation and Setup
15
WARNING
• Only qualified and authorized service personnel should access the inside of the
equipment. To avoid accidental electric shock, always disconnect the mux from the
power line and from all the cables before removing the cover.
• Dangerous high voltages are present inside the mux when it is connected to power
and/or to the links. Moreover, under external fault conditions, dangerous high voltages
may appear on the lines connected to the mux.
• Any adjustment, maintenance, and repair of the opened instrument under voltage
should be avoided as much as possible and, when inevitable, should be carried out
only by a skilled technician who is aware of the hazard involved.
• Capacitors inside the instrument may still be charged even after the instrument has
been disconnected from its source of supply.
CAUTION
The mux contains components sensitive to electrostatic discharge (ESD). To prevent
ESD damage, avoid touching the internal components, and before moving jumpers,
touch the mux’s frame to ground yourself.
The internal jumpers located on the mux’s main and interface boards are identified in Figures 3-1 and 3.2. The
functions of the jumpers are described in Tables 3-1 and 3-2.
To set the jumpers and switches:
1. Identify the jumper and switch locations. (Refer to Figure 3-1 or 3-2.)
2. Change the settings as required. (Refer to Tables 3-1 or 3-2 for setting options.)
CAUTION
Additional jumpers that are not listed in Figures 3-1 or 3-2 and Tables 3-1 or 3-2 exist.
They are set by the manufacturer and should not be touched!