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THE THREE TYPES OF CARTRIDGES
12. Type I Cartridges Give You Custom Features
Feature cartridges contain the software that enables you to customize your system.
You have Feature Package 2, one of a family of feature cartridges designed for the
Type I slot.
13. Type II Cartridges Give You Audio Options
Two different cartridges are available for this slot. One enables you to have Music-
on-Hold. When this cartridge is connected to a music source, callers you put on hold
will hear music. A second cartridge provides an interface for Music-on-Hold, back-
ground music, and Loudspeaker Paging. When a loudspeaker paging system is
connected to this cartridge, users can make announcements over it. For the paging
system to work, set Paging Signal On/Off switch to On.
14. Type III Cartridges Give You Line-Associated Options
This cartridge supports two separate features: Power Failure Transfer and Extra
Alert. Power Failure Transfer provides jacks for two basic Touch-Tone or rotary
telephones. In case of a commercial power failure, with the Power Failure Transfer
feature, telephone service is automatically switched to the backup phones. The
Extra Alert jack enables you to connect a loud bell or horn for noisy or remote
locations where the regular telephone ring can’t be heard.
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MERLIN COMMUNICATIONS SYSTEM CONTROL UNIT
MODEL 820
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