IMI66–107
Typical Base Unit
(8-Line, 16-Station Base Unit)
Top
Location
Bottom
Location
AM012
Typical Add-On Module
Connecting Cable
and Plug
Figure 2–21: Installing The Add-On Expansion Module
Nameplate
(Remove to expose base
unit connectors)
Upper Mounting Holes
(2 Places)
Lower Mounting Holes
(2 Places)
Securing
Screw
Snap Slots for
Nameplate
Digital Telephone System
Ground
Modules
to Base
Unit
Installing The DSU 2 – 45