Product information guide

T217
3
Product Information Guide
SYSTEM CONFIGURATION
The 308 SPIRIT CS is the smallest configuration; it has up to three CO lines and eight station
lines. Adding the optional expansion unit allows growth up to six CO lines and sixteen
stations, yielding the 308/616 Spirit system.
The model 308 control unit consists of a textured, gray plastic housing and base, enclosing
the PWB (printed wiring board) and power supply. The open grillwork on the control unit
allows proper system ventilation. The control unit is approximately 16 inches wide, 8 inches
high, and 5 inches deep. A fully equipped unit (308/616) weighs less than 10 pounds.
The system functions over 2-pair wiring and uses loop-start lines for the CO (central office)
facilities. The SPIRIT CS can be configured behind another PBX or cross-connected directly
to the CO. Stations cabled with tinsel cord, which does not have the twisted-pair structure
required to transmit data, have to be within 25 feet of the controller to function properly. If
stations are wired with twisted-pair solid-conductor cable, the working limits are 1000 feet
from the controller.
The ALERT, PAGE, LINE AUX, TELCO LINES, and STATIONS connectors are positioned and
labeled as shown in Figure 1. An RCA phono jack interfaces MOH (Music-On-Hold). The
MOH volume control can be easily adjusted by hand.
AT&T – PROPRIETARY