Carrier Access Broadmore 1750 - Manual (Page 62)

2-12 Broadmore 1750 - Release 4.6
Planning and Ordering Guide
ATM Bandwidth per Module
ATM Bandwidth per Module
The CPU and each SAM uses a specific amount of ATM bandwidth, as shown below.
ATM Network Loading
The Broadmore 1750 multiplexes cells from various input SAMs into a single ATM
UNI signal that is delivered to the ATM network. There is overhead associated with
this process that reduces the total bandwidth available to the connected service
equipment. The Broadmore 1750 can load the network UNI to 95% capacity without
dropping cells. Service capacities are shown in the following table.
ATM Service Capacity
Module P/N Module Description ATM Bandwidth Required (Mbps)
7660-206 CPU, FIPS, 10Base-T,
AAL5 Average: < 2.5 Mbps
Maximum: 4.0 Mbps
7660-034 DS3, Unstructured,
3 port Whole DS3: 50.45 Mbps
Maximum: 151.35 Mbps (all ports in
service)
7660-045 E3, Unstructured,
3 port Each port: 39.21 Mbps
Maximum: 117.62 Mbps (all ports in
service)
7660-672 DS3, Structured,
1 port Whole DS3: 50.45 Mbps
Module Cell Bus ATM Network
Rate (Mbps) ATM Service
Capacity (Mbps)
OC-12c/STM-1c A
C
D
E
Total 155.520
155.520
155.520
155.520
622.080
149.760
149.760
149.760
149.760
599.040