Arris C4 - Page 88

Chapter 3: C4/C4c CMTS Specifications
STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide
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 MTAs per C4/C4c CMTS 12,000
 MTAs per downstream channel 1,000
 Maximum per 16D CAM 8,000
 MTAs per upstream channel 250
 Lines per downstream channel 1,200
 Lines per upstream 300
 Lines per C4 CMTS 14,400
Busy Hour Call Attempts (peak 60-minute call loads supported):
 BHCA per C4/C4c CMTS 39,600
 BHCA per downstream channel 3,348
 Maximum per 16D/XD CAM 26,640
 BHCA per upstream channel 828
 Maximum per 24U CAM (C4 CMTS only) 16,500
 Simultaneous half-calls/downstream channel 67
 Simultaneous half-calls/upstream channel 42
 Connections per second per chassis 11
Call load performance is based on the following assumptions:
 Lines per subscriber 1.2
 Hold time 180 seconds
 Call Completion Rate 99.5%
These limits also depend on the following:
 MTAs/lines are distributed evenly across 4 upstream channels per downstream channel
 256QAM downstream channel
 16QAM upstream channel
 3.2 MHz upstream channel width