Instruction manual

CONTROL UNIT
206 Module
Circuit Breakers
Primary
Expansion
Carrier
Main Circuit
Carrier
Breaker
Main Circuit
Breaker
206 Modules
400
Modules
Primary
Processor Module
Extension
Processor
Module
Grounding Screw
Outside Line Jacks
Outside Line
Jacks
Power Indicators
(LEDs)
PAGE Jack
Extension Jacks
(206 modules only)
SMDR Jack
MUSIC ON HOLD Jack
(for RCA phono plug)
Expansion
Cable
Power Indicators
(LEDs)
SYSTEM PHONES
Optional Devices
Optional Devices
(that connect to extension jacks)
(that connect to the control unit)
AT&T Serial Printer
Standard
Touch-Tone
Phone
AT&T Paging System
PARTNER MAIL
MLS-34D™ Phone
(with optional MLS-CA24
Intercom Autodialer)
MLS-18D™ Phone
MLS-12D™ Phone MLS-12™ Phone
MLS-6™ Phone
MLC-6 Phone
AT&T Call Accounting
Terminal (Basic or Plus)
Fax Machine
Answering
Machine
Doorphone
Bell
AT&T Magic on Hold® deck
Figure 1-1. Sample System Components
Overview 1-3