Ericsson Redback Networks SmartEdge 1200 - Page 30

2-2 SmartEdge 1200 Router Hardware Guide
A few traffic cards have a low-density version, on which a limited number of ports are enabled through
software entitlement. Table 2-1 lists the port data for traffic cards; in the table, IR, LR, and SR
abbreviations are used for Intermediate Reach, Long Reach, and Short Reach, respectively.
Table 2-1 Port Data for Traffic Cards
Type of Traffic Card/Description
Physical
Ports
Low-Density
Version
Low-Density
Port Numbers
ATM
ATM OC-12c/STM-4c IR
Enhanced ATM OC-12c/STM-4c IR
4-port ATM OC-3c/STM-1c IR
1
1
4
No
No
Yes
–
–
1, 3
Ethernet and Gigabit Ethernet
10/100 Ethernet (12-port)
Fast Ethernet-Gigabit Ethernet
Gigabit Ethernet (first and second versions)
Gigabit Ethernet 3
Gigabit Ethernet 1020 (10-port)
Gigabit Ethernet 1020 (20-port)
10 Gigabit Ethernet
12
60, 2
4
4
10
20
1
No
No
Yes
No
No
No
No
–
–
1, 3
–
–
–
–
SONET/SDH
OC-192c/STM-64c 1 No –