Specifications

OfficeServ 500 General Description Guide/Ed.00 CHAPTER 1. Introduction To System

2 SIZE AND CONFIGURATION

The OfficeServ 500 is a fully modular system comprised of a single cabinet configured

as a Button Service Unit, up to two additional cabinets, interface cards and electronic

phones. 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.

2.1 Single CabinetSystem

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. 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.

Figure 1.2 OfficeServ 500 Single Cabinet System

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.