Section 2-System Design
Page 2-2
The power supply circuitry of the
Emerald ICE
incorporates a linear design AC transformer with a
choice of enter voltage taps. The transformer primary windings are shipped wired for 117vac appli-
cations. A factory provided switch alternates between 230vac and 117vac applications. The output
voltage is delivered to the 610+2 Board(in KSU1, Base Board in KSU2) for voltage regulation. All
system operation and logic voltages are produced at these boards.
Two fuses are provided on the power supply board; one for ac enter over-voltage protection and
one for DC output over-current protection. A main power switch is accessible on the side of each
KSU. In the event battery backup operation is desired the KSU power cord can be connected with
an external (ancillary) UPS (Uninterruptible Power Supply). It is the responsibility of the installer to
match the battery requirements/UPS requirement to the specific needs of the equipment owner.
Power Supply
Summary of Contents for EMERALD ICE
Page 1: ...Emerald ICE Digital Key Telephone System TM Quick Installation Guide...
Page 6: ...vi NOTES...
Page 7: ...Section 1 Introduction...
Page 8: ...NOTES...
Page 12: ...NOTES...
Page 13: ...Section 2 System Design...
Page 14: ...NOTES...
Page 40: ...NOTES...
Page 41: ...Section 3 Installation...
Page 42: ...NOTES...
Page 54: ...Section 3 Installation Page 3 12...
Page 55: ...Emerald ICE Quick Installation Guide Page 3 13...
Page 57: ...Section 4 Basic Programming...
Page 58: ...NOTES...
Page 68: ...NOTES...
Page 69: ...Section 5 Programming Quick Reference Charts...
Page 70: ...NOTES...
Page 137: ......