Size And Configuration; Figure 1-1 Idcs Single Cabinet System - Samsung iDCS500 Manual

1-2 Chapter 1
Introduction To System

SIZE AND CONFIGURATION

The iDCS 500 is a fully modular system comprised of a single cabinet configured as a Key Service Unit,
up to two additional cabinets, interface cards and electronic keysets. A fully expanded system using
the TEPRI cards can have a maximum of 352 lines or 360 stations. Without the TEPRI cards, the
maximum number of lines is 208 and the maximum number of stations is 360. The maximum
number of ports supported by the system is 488. Each cabinet of the system supports two power
supply units, the first of which must be a PSU-B and can support up to 56 stations. When assisted by
a second power supply unit (either PSU60 or PSU-B) the cabinet can support up to 120 station devices.
Both power supply units are connected to the DC bus for external battery backup. Each cabinet also
has four (4) Digital Signal Processor (DSP) channels for use as DTMF receivers or tone detectors.
Single Cabinet System
A single cabinet system has nine universal card slots, a processor slot and two power supply slots, the
first of which must be occupied by a PSU-B (see Figure 1–1). Station or trunk (line) cards can be
installed in any of the nine universal slots. The TEPRI cards must be installed in slots 1, 2 or 3. This
allows a maximum of 120 stations of any kind or 120 lines in a single cabinet system. Without using
TEPRI cards, the maximum number of CO lines in the basic KSU is 72.
NOTE: The first power supply slot must be occupied by a PSU-B to supply sufficient power to all 10
slots (9 universal and a processor slot) and support up to 56 stations. The second power supply slot
can be occupied by either a PSU60 or PSU-B. Do not use a PSU40 in either PSU slot.
Figure 1–1 iDCS Single Cabinet System