Unit installation

8
2.0 Installation
2.1 Unpacking the MR-2900
The basic MR-2900 package includes the following components:
Backbox
Outer door including:
•Lock
Display window
Dead front door
Inner Door Assembly including:
•Main PCB
Display PCB
Operating instruction insert
Hotkey label insert
Wiring label
Hardware backplate including:
Power Supply
Transformer
Terminal Board
Hardware pack including:
8 x NAC EOL resistors
Door keys (taped to outside of cabinet)
Installation manual and operating manual
ALL CIRCUITS EXCEPT AUX. POWER
ARE SUPERVISED
USE #10 SCREWS
FOR MOUNTING
BACKBOX TO
WALL STUDS
BB-2920B
BACKBOX
TRANSFORMER
PRINTER
ASSEMBLY
DEAD
FRONT DOOR
POWER
SUPPLY
BB-2900B
BACKBOX
POWER SUPPLY
COMPARTMENT COVER
OUTER DOOR WITH
GLASS PANEL (MR-2920 SHOWN)
ISOLATOR MODULE
INNER DOOR
AND CPU
PHONE DIALER
MODULE
Figure 2: MR-2900 Exploded View
MR-2920