Installation guide

TYPE III CARTRIDGES: LINE-ASSOCIATED OPTIONS
A Type III cartridge provides line-associated options. It is installed in the third or last slot on
the right side of the control unit. Pictured below is the Extra Alert/2-Line Power Transfer
Type III cartridge.
Power Fail Lines jacks: Connect
two basic Touch-Tone or rotary
telephones for automatic backup
service in the event of a
commercial power failure.
Extra Alert jack: Connects a loud
bell or horn for noisy or remote
locations.
CIB 2872: Extra Alert/2-Line Power Failure Cartridge Type III
LINE/VOICE TERMINAL MODULES (Model 820 only)
The three types of modules that can expand the capacity of the Model 820 control unit are
shown below. One 2-Line/5-Voice Terminal Module which has voice terminal jacks labeled 10
through 14 and outside line jacks labeled A and B comes with each Model 820 control unit.
Up to four modules in any combination can occupy the vertical slots in the center of the
control unit.
2-Line/5-Voice 2-Line Module:
5-Voice Terminal
Terminal Module: Adds two outside Module: Adds five
Adds two outside
lines, but no voice
voice terminals, but
lines and five voice terminals.
no outside lines.
terminals.
CIB 3002: 2-Line/5-Voice Terminal Expansion Module for Model 820
CIB 3012: 5-Voice Terminal Expansion Module for Model 820
CIB 3027: 2-Line Module for Model 820
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