IMI66–107
Digital Telephone System
CAJS091A
Typical
Common Equipment
Base Unit
Software
Cartridge
(Lift out to remove)
Figure 2–23: Removing The Software Cartridge
CAJS091
Typical
Common Equipment
Base Unit
Software
Cartridge
(Push in to install)
Figure 2–24: Installing The Software Cartridge
Installing The DSU 2 – 49