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Chapter 2 Installation IPmux-1/1E Installation and Operation Manual
2-4 Installation and Setup
Only qualified and authorized service personnel should have access to the
inside of the unit.
Disconnect the unit from the power line and from all the cables before
removing the cover.
Line voltages are present inside IPmux-1/ 1E when it is connected to power.
Moreover, under certain external fault conditions, dangerous voltages may
appear on the lines connected to IPmux-1/1E.
Any adjustment, maintenance, and repair of the opened device 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 hazards involved.
Capacitors inside the device may still be charged even after it has been
disconnected from its source of power.
The IPmux-1/1E contains components sensitive to electrostatic discharge (ESD). To
prevent ESD damage, avoid touching the internal components, and before moving
jumpers, touch the IPmux-1/IPmux-1E rear panel.
ENA
DIS
Figure 2-1. IPmux-1E ISDN-S Jumpers
After completing the internal settings, reinstall the top cover as follows:
1. Position the IPmux-1/1E case on a flat, clean surface.
2. Slide the cover into the slots from the rear panel, and set the cover in place.
3. Fasten the cover to the rear panel with the locking spring screws (one is near
the POWER connector).
Caution
Warning