7300-1OC12POS-SMI
1-port OC12 POS line card for Cisco 7304 w/ Single-mode IR
sku: SKU28891 7300-1OC48POS-SMI
1-port OC48 POS line card for Cisco 7304 w/ Single-mode IR
sku: SKU28901 7300-1OC48POS-SMS
1-port OC48 POS line card for Cisco 7304 w/ Single-mode SR
sku: SKU28911 7300-2OC12POS-SMI
2-port OC12 POS line card for Cisco 7304 w/ Single-mode IR
sku: SKU28921 
7300-2OC3ATM-MM
2-port OC3 ATM line card for Cisco 7304 w/ Multi-mode
sku: SKU28931 
7300-2OC3ATM-SMI
2-port OC3 ATM line card for Cisco 7304 w/ Single-mode IR
sku: SKU28941 
7300-2OC3POS-MM
2-port OC3 POS line card for Cisco 7304 w/ Multi-mode
sku: SKU28951 
7300-2OC3POS-SMI
2-port OC3 POS line card for Cisco 7304 w/ Single-mode IR
sku: SKU28961 
