Clear-Com PIC-4704 - Manual (Page 16)

P I C - 4 7 0 4 , M A - 7 0 4 & A X - 7 0 4 I F B S Y S T E M 2 - 6
SYSTEM CONNECTION
1. Determine the architecture for your IFB system.
2. Decide upon a location for the PIC-4704(s).
3. Connect the PIC-4704(s) to Clear-Com power supply(s) such as the PS-702
or PS-704.
4. Connect the program sources(s) to the PIC-4704(s) as required. A balanced
program source is connected to pins 2 and 3 of the program input. The
common pin can be connected to the common or ground point of the
source, if necessary, to eliminate any residual hum. If a single-ended source is
used, either pin 2 or 3 must be connected to the common point of the
source. The “high” side is connected to the other pin (2 or 3).
5. Use standard multi-pair shielded cables and two-conductor shielded mic cables
to interconnect the access stations as described in the preceding section.
6. Route all cables from the access locations and the talent receivers to the
PIC-4704(s) using either or both of the methods discussed in the previous
section. Pin assignments for the rear panel IFB XLR connectors are: Pin 1,
Common; Pin 2, power; Pins 3–6, talent channels 1–4 respectively.
7. Route cables away from heavy AC power sources such as lighting panels or
electric motors.
8. In permanent installations, cables should be installed in accordance with
approved local building codes.