A900-IMA4OS is a Cisco ASR 900 4 port OC3/STM1 or 1 port OC12/STM4 Interface Module. Cisco ASR 900 Series interface modules are designed to support a wide range of services, speeds, temperature ranges, and rich capabilities. They provide cost-effective delivery of converged circuit emulation, optical transport network and business Ethernet services.
Table 1 shows the comparison.
Part Number | A900-IMA4OS | A900-IMA8S |
Type | ASR 900 4 port OC3/STM1 or 1 port OC12/STM4 Interface Module | ASR 900 8 port SFP Gigabit Ethernet Interface Module |
Port density | 4-port OC3/STM-1 or 1-port OC12/STM-4 TDM | 8-port Gigabit Ethernet SFP |
Power draw | 30W maximum | 17W maximum |
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