RadioFrame Networks Inc MCRB10 User Manual
MC-Series System Installation & Testing
System Description
RadioFrame Networks, Inc.
9
2.2 RadioFrame
Networks
Hardware
RadioFrame Networks hardware receives layer 3 control messages (control, voice, packet data,
SNMP, etc.) from the iSC, and converts them into layer 2 PDUs (Protocol Data Units) that are
sent every 15mSec (received every 7.5 mSec). Then the AIC converts the layer 2 PDUs into raw
layer 1 BaseBand I/Q samples that are sent/received every 7.5 mSec.
SNMP, etc.) from the iSC, and converts them into layer 2 PDUs (Protocol Data Units) that are
sent every 15mSec (received every 7.5 mSec). Then the AIC converts the layer 2 PDUs into raw
layer 1 BaseBand I/Q samples that are sent/received every 7.5 mSec.
Figure 3
MC-Series System functional diagram
2.2.1
BTS Interface Chassis (BIC)
The BTS Interface Chassis (BIC) interfaces to the iSC and provides all Base Radio management
functionality, including timing, converts iSC layer 3 messaging to layer 2 packets, and converts
1PPS 5MHz clock to packet-delivered timing. Within the BIC chassis are four assemblies (see the
following illustrations):
functionality, including timing, converts iSC layer 3 messaging to layer 2 packets, and converts
1PPS 5MHz clock to packet-delivered timing. Within the BIC chassis are four assemblies (see the
following illustrations):
• BIC Common RadioFrame Interface Card (CRIC)
• BTS Processing Card (BPC)—up to three BPCs per system, one BPC per sector, deployed in
• BTS Processing Card (BPC)—up to three BPCs per system, one BPC per sector, deployed in
front slots 2, 3, and 4
• Ethernet Rear Transition Module (ERTM)
• Coax-to-RJ45 Transceiver Card (CRTC)
• Coax-to-RJ45 Transceiver Card (CRTC)
ISC
CRIC
BPC (A)
BPC (C)
CRIC
BPC (A) + SPAM
BPC (B) + SPAM
BPC (C) + SPAM
BIC
10 Base 2
100 BaseT
100 BaseT
AIC
Layer 3 Messges
Layer 2 PDUs
Layer 1
BaseBand I/Q
Samples
RBS
Group A
Group C
Group B
BPC (B)