Clear-Com RM-702 - Manual (Page 27)

R M - 7 0 2 T W O - C H A N N E L R E M O T E
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terminals for the intercom lines. The PS-702 provides the DC power for the
system and the line termination switches must be turned on.
CAUTION:All Clear-Com Intercom lines must be terminated. Care must be
taken not to fail to terminate or to “double”-terminate a line.
All unused intercom inputs must be terminated to keep the line
drive circuits stable. The RM-702 does not provide termination
on the intercom line.
PROGRAM INPUT
There are two different purposes for the program input: monitoring program
in the speaker and headphone, or feeding the Channel A and B intercom lines
with program material.
• Monitoring Program: To monitor program in the headphone or speaker:
• Connect the program source to the proper pins on the DB-15.
• Make sure the appropriate rear-panel program enable DIP switch is set
to the on position. For channel A, set the program enable A DIP switch
to on. For channel B, set the program enable B DIP switch to on.
• Use the large knob labeled “Program Volume,” located right next to the
speaker on/off switch, to set the appropriate program volume level. This
knob controls the program volume in the speaker/headphone.
• Set either the A or B potentiometer marked Program Level, located
under either the A or B channel’s volume knob, to the lowest setting.
This control affects the program volume going out onto the selected
intercom line.
• Feeding Channel A or B Intercom Line: To feed the A or B channel
with program material:
• Connect the program source to the proper pins on the DB-15.
• Make sure the appropriate (A or B) rear-panel program enable DIP
switch is set to the on position. For channel A, set the program enable A
DIP switch to on. For channel B, set the program enable B DIP switch
to on.
• Set the large knob, labeled “Program Volume,” located right next to the
speaker on/off switch, to the appropriate level. This knob controls the
program volume in the speaker/headphone.
• Set either the A or B potentiometer marked Program Level, located
under either the A or B channel’s volume knob, to the desired level. This
control affects the program audio level on the intercom line.
• If it is desired to interrupt this program feed, set the appropriate (A or B)
rear-panel Program Interrupt DIP switch to on and ensure that the
Program Enable DIP switch for the channel is set to off. When you do
so, any time you activate a call signal, the program audio is interrupted
for the duration of the call signal. There is an option to change this so
that any time you activate a talk signal, the program audio is interrupted