User Manual

VoiceXtender Modem Installer’s Guide
Installation and Setup
3-8 Rev. A - 8/97
System Grounding
Direct grounding of the antenna, mast, and tower provides some protection
against lightning strikes and static buildup. A direct electrical connection
should be made to a suitable grounding rod at the base of the tower or mast using
at least #10 AWG ground wire, or its equivalent, and non-corrosive hardware.
For details and safety standards, consult the appropriate electrical code or a
similar document. Use lightning arrestors in appropriate places.
Connecting the Line/Phone Interface
The RJ11-type modular connector (labeled RJ11 on the modem) is provided to
connect your phone or the line from the network (Figure 3-3).
The slave modem typically is connected to the phone and the master modem is
connected to the line because in a hub configuration the master modems must be
centrally located for burst synchronization. It is possible, however, that
several master modems connected to a combination of phones or lines can also be
hub configured, as long as they are co-located.
The switch settings determine whether the connector is used for a phone or a
line. Ensure that the switch settings correspond to the correct cabling for the
line and phone.
Figure 3-3
Connecting the Line and Phone Interface