User's Manual

MC-Series System Installation & Testing
System Description
12 RadioFrame Networks, Inc.
2.2.2 Airlink Interface Chassis (AIC)
The Airlink Interface Chassis (AIC) provides layer 1 (I & Q samples) and layer 2 processing of call
data, including routing of packet data to RadioBlades in RBS, as well as timing to the RBS. Within
the AIC chassis are three assemblies:
• AIC Common RadioFrame Interface Card (CRIC)
• BTS Processing Card + Signal Processing Array Module (BPC+SPAM)—three BPC+SPAM
per AIC in front slots 2, 3, and 4
• Ethernet Rear Transition Module (ERTM)
Figure 10 AIC front view
Figure 11 AIC rear view
ERTM
AIC CRIC
BPC+SPAM