VISORNET - Installation
I-20
Doc. DM245-I
Rev. 7.0
The loudspeaker output is not powerful and can only be externally connected to
amplifier devices.
Figure1.13. Mini-jack connectors for the microphone input (IN) and the
loudspeaker output (OUT)
I - 2.7. Ethernet LAN Connection
The local network connection (LAN) is carried out through a braided pair cable
terminating in the RJ45 connector.
Permits the ETHERNET 10/100 Base-T connection through a shielded or unshielded
(UTP or STP) braided pair cable.
The local network connection (LAN) will be normally carried out, depending on the
design, through a HUB.
Coaxial Connection
If the local network (LAN) is cabled with coaxial, the VisorNet 4c connection should
be carried out through a braid pair adaptor to coaxial. This adaptation can be carried
out, for example, directly through a HUB incorporating a BNC output or an AUI
connector. In this case an AUI-BNC adaptor is required.
I - 2.8. ISDN Connection
In the ISDN VisorNet 4c equipment, the “ISDN” RJ45 connector is used to connect
the ISDN basic access. This output is connected to the “S” bus (4 wires) that comes
from the ISDN network terminator (NT1 or TR1).
Passive-Bus termination resistors
The VisorNet 4c has a pushbutton, located on the rear panel of the device, (identified
as TERM) that permits you to connect the BUS-S termination resistors. The
placement of these termination resistors is very important as this can give rise to data
(or voice) errors, especially if the “S” bus line is long.
• Single or last terminal on the ISDN “S” bus
The TERM pushbutton should be in the ON position, if the VisorNet 4c is the
only element connected to the network terminal (NT1, TR1, etc.) or it is the last
one on the ISDN “S” bus. This is the position that the device has been initially
configured for by the manufacturer.
