Polycom DOC2238A Hardware Installation Manual page 128

Chapter 4 - Hardware Description
4-48
To install the Music I/O card in the rear panel of the MGC+ unit:
1. Carefully slide the Music I/O card into the slot in the backplane where
the Audio+ module is inserted in the front.
CU I/O
2. Tighten the screws on the rear panel of the MGC+ unit to secure the
Music I/O card.
Rear
NET I/O
MUSIC I/O
Data
Control
Module
Power Supply
Module
Backplane
H.323 I/O
ISDN Network I/F
+
MUX
+
Audio
+
Video
Front
H.323 Network I/F