Copyright 2009 Talk-A-Phone Co. All rights reserved.
Talk-A-Phone
Co.
• 7530 North Natchez Avenue • Niles, Illinois 60714-3804
Page 8 of 13
Phone 773.539.1100 • Fax 773.539.1241 • info@talkaphone.com • www.talkaphone.com
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Figure 6.
Intermediate
Interface Box Wiring
9. Connecting Paging Bus Cable to
Final
IW-IB-6 Interface Box
On the white terminal block included with the Interface Box, connect all wires from the
paging bus cable from the previous Interface Box to similar wires from the Interface Box
as shown in Figure 7 below.
For the final Interface Box only
leave the 620 Ohm, 1/2Watt
Terminating Resistors connected between each pair on the Interface Box side of the
terminal block.
If a music/program source is being used, connect another shielded pair from the music
terminals on the Interface Box to the last three terminals on the terminal block. Then
run this cable to the music/program source.
For the final Interface Box only
connect a 620
Ohm, 1/2 Watt terminating resistor (included, but not factory installed) between the
music source terminals on the Interface Box side of the terminal block as shown in
Figure 7 below.
Summary of Contents for IW-HFM-4
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