IPmux-1/1E Installation and Operation Manual Chapter 2 Installation
Installation and Setup 2-3
2.4 Equipment Needed
IPmux-1/1E needs no special tools for installation. A screwdriver is necessary when
mounting IPmux-1/1E in a 19-inch rack.
2.5 Installation and Setup

Setting Jumpers

IPmux-1

IPmux-1 internal jumpers and switches do not need to be configured by the user.
Therefore, removing the product cover is not required.

IPmux-1E

The IPmux-1E FXS/FXO/E&M version needs NO user internal jumper
configuration.
The IPmux-1E ISDN version contains jumpers that must be set for phantom feed
(see Figure 2-1). Open the case and verify the positions of internal jumpers before
proceeding to the IPmux-1E installation, which is explained below.
To open the IPmux-1E case:
1. Disconnect all the cables connected to the IPmux-1E.
2. Release the cover screws at the rear panel (one is near the POWER connector).
3. Slide the IPmux-1E top cover by pulling it straight out.
To set the IPmux-1E ISDN-S module jumpers:
If necessary, change the settings in accordance with the specific requirements of
your application:
ENA – enable phantom feed
DIS – disable phantom feed
The phantom feed ENA/DIS setting influences the IPmux-1E ISDN BRI operation
mode. When phantom feed is disabled, the S-interface can be configured (through
software) to the TE or NT mode. When phantom feed is enabled, only the NT
mode is possible.