User's Manual

8 Data Rx–
Table 4-3 Pinouts for connecting to other digital matrix intercom systems
The remaining two 4-wire connections are audio only, and the data connections are
unterminated (see Table 4-2 FS II Base station 4-wire pinout).
Within the configuration software of the other digital intercom system, configure its connected
port to 4-wire or similar. Adjust the input and output levels either at matrix side or within the FS
II front-panel display for the particular FS II 4-wire port.
4.4.5 Connecting with other 4-wire devices
Various other 4-wire audio devices can be connected with FS II. The Clear-Com EF-701M 4-
wire interface can be used to attach additional partyline channels to FS II, converting them
from partyline on the wired side to 4-wire on the FS II side.
The Clear-Com IF4W4 interface can be used similarly. The audio input side of the FS II 4-wire
connectors could be used for additional program or other audio inputs that could then be
accessed by FS II beltpacks. The audio output side of the FS II 4-wire connectors could be
used to route an FS II wireless beltpack user’s voice out of the system for paging or other
reasons, similar to the SA OUT connector.
When using the FS II 4-wire ports in this way, make sure that proper connections are made
between FS II and the other device. Adjust the input and/or output levels either at the 4-wire
device or within the FS II front-panel display for that particular 4-wire port.
4.5 Connecting to a program audio source
FS II can connect with a program audio source, making it accessible to be assigned by itself
to a communication path to one or more FS-BP wireless beltpacks, or to be added to a group
with other communications and assigned to beltpacks. Using the two separate rotary encoder
volume controls on the beltpack, the user can monitor the program on one control while
talking and listening on an intercom channel with the other.
The balanced female 3-pin XLR connector accepts a standard audio signal from a mixing
console or similar, with Pin 1 ground, Pin 2 audio hot (+), and Pin 3 audio cold (-).This
connector is transformer-isolated.
To make the program input signal available to the system, the front-panel PRGM enable
button must be activated/on. The red LED above it will light, indicating that it is now available.
This front-panel switch may be “locked” to prevent accidental disengagement, using the front
panel display.
Using the front-panel display and rotary encoder, the user may select PORTS and give the
connector a five-character alphanumeric label. The user may assign that program input by
itself to a beltpack using the BELTPACKS menu, or use the GROUPS menu to assign the
program input to any group or wireless partyline. Program input can be assigned to multiple
groups or wireless partylines using the GROUPS menu.
4.6 IFB configuration
One of five FS II Base station inputs can be defined as a source for an IFB. These inputs are
the Program Input and the four 4-Wire ports. All the 4-Wire ports, partyline channels,
beltpacks, wireless partylines and stage output can be defined as IFB destinations.
36
FreeSpeak II User Guide