2-8
Emerald ICE Installation & Hardware Reference Manual
System
Design
2
The
Base
Board
is
unique
to
KSU2.
It
provides
connecitivity
with
peripheral
boards.
Additionally
the
Base
Board
regulates
the
24
volt
DC
power
from
the
source
to
produce
all
required
logic
voltages
and
operations
voltages.
The
KSU2
operation
LED
(located
next
to
the
power
switch)
is
tied
to
the
CCB
(KSU1)
LED.
Therefore,
when
the
LED
next
to
the
power
switch
is
flashing,
the
CCB
(KSU1)
is
active.
A
long
shielded
cable
is
used
to
connect
KSU2
to
the
CCCB
inside
of
KSU1.
Each
digital
station
interface
is
protected
against
circuit
wiring
shorts
by
an
over
‐
current
protection
Polyswitch.
The
digital
station
circuit
requires
only
one
cable
pair
to
operate
and
is
not
polarity
sensitive.
Figure 2-6
Base Board
2.6
Base Board
Summary of Contents for EMERALD ICE
Page 1: ...Emerald ICE Digital Key Telephone System TM Installation Maintenance Manual...
Page 3: ......
Page 19: ...xiv Emerald ICE Installation Programming Maintenance Manual TC...
Page 70: ...Emerald ICE Installation Programming Maintenance Manual 3 13 Installation 3...
Page 71: ...3 14 Emerald ICE Installation Programming Maintenance Manual Installation 3...
Page 77: ...3 20 Emerald ICE Installation Programming Maintenance Manual Installation 3...
Page 89: ...4 12 Emerald ICE Installation Programming Maintenance Manual Basic Programming 4...
Page 181: ...6 32 Emerald ICE Installation Programming Maintenance Manual Phone Trunk Programming 02 6...
Page 454: ...Appendix A Door Phone Installation Appendix A Door Phone Installation...
Page 455: ......
Page 464: ...Appendix B Feature Codes Appendix B Feature Codes...
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