Clear-Com PS-10 User Manual

7 I
m
SYSTEM INTERCONNECTION
The PS-1OK mounts in
a standard 19"
If you don't use Belden
cable, use
rack, while the portable
PS-10 can
an equivalent type
with similar
go anywhere. Cable
is run from the
wire gauge and capacitance.
Cable
3-pin connectors
to all headset and
(especially in
longer runs) should
speaker
stations.
Allow
at least
have
low DC resistance
(less than
three
inches
behind
the unit
for
15 ohms
per
1000 feet;
large
diame-
cables extending
from
the rear
ter
conductors)
and
low inter-
panel,
and avoid
sharp
bends
in the
conductor
capacitance
(less
than or
cabling.
equal to
55 pF/foot
of cable,
capa-
citance
between conductor
and
The PS-10
provides four XLR-type
3- shield).
pin connectors for intercom
output.
All four are
internally connected
Most Remote
Stations (such as belt-
in parallel.
packs) each
have a pair of
input
and output
connectors;
when
instal-
CHOOSING
INTERCONNECT CABLE
ling
a system with these,
you can
When
choosing interconnect
cable, "daisy-chain"
many stations
along
keep the
following considerations
one interconnect
path. Alternate-
in
mind:
ly, you
can try Clear-Com's
Quadro-
puss Splitter
(one line in, three
1) DC resistance
affects crosstalk-
lines out).
These methods simplify
In permanent installations,
do
installation and
lessen the overall
not use
wire smaller than
20 length
of cable in the system.
gauge, stranded
(except runs
shorter than
100 feet). Keep
the total
resistance
under 100
PERMANENT
INSTALLATION
CABLE
ohms.
We recommend you
use vinyl-insu-
2) The capacitance
of the cable
lated and jacketed
cable for con-
affects the system's
frequency
nections to wall-mounted
or custom-
response
and sidetone stability.
mount
intercoms; it costs
less and
Total
capacitance should
not be is
easier to pull through
conduit
greater
than .25 microfarads
than
the rubber-insulated
cable.
(capacitance
between conductor
and shield; equivalent
to an
Use low capacitance
cable. We
intercom
system containing
5000 suggest
BELDEN 8762 (20
gauge,
feet of 50
pF/foot of cable).
stranded) for
applications up
to
3) Clear-Com intercoms
operate with
500 feet, and
BELDEN 8760 (18
cable that has no
more than 35
gauge, stranded) for
up to 5000
pF from conductor
to conductor,
feet.
and
no more than 70 pF from
conductor to shield.
Again, if you
don't use Belden
cable, use
an equivalent type with
similar wire gauge and capacitance.
PORTABLE SYSTEM
CABLE
Typical cable
for connecting the
If conduit
is available when in-
PS-10
to portable Remote
Stations stalling
mounted Remote
Stations,
is rubber-Jacketed,
two-conductor,
run interconnect
cable through
the
shielded mic cable.
We suggest you
conduit to each installed
intercom.
use
BELDEN 8413 (24 gauge, stran-
ded)
for connections totalling
500 NOTE:
Chassis ground
and signal
feet or less,
and BELDEN 8412 (20
ground (Pin 1
on 3-pin intercom
gauge,
stranded) for connections
connectors)
are NOT the same
point.
that reach tip to 5000
feet.
NEVER connect the chassis
and Pin 1
5

Clear-Com PS-10 Specifications

General

Brand	Clear-Com
Model	PS-10
Category	Power Supply
Language	English