Yes you can set to 10/100/1000
http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/install_upgrade/ASR1000/ASRsov.html#wp1071790
SFP-GE-T Modules
The 1000BASE-T SFP module (SFP-GE-T) is compliant with IEEE 802.3:2000
and plugs into a standard Gigabit Ethernet SFP module port. It operates
on standard Category 5 wiring and has an RJ-45 connector. The SFP-GE-T
maximum cabling distance is 328 feet (100 m).
The SFP-GE-T is hot-swappable. Autonegotiation is not supported. The
SFP-GE-T module supports 10/100/1000 speeds, which must be explicitly
configured using the speed command. Only full-duplex mode is supported, which must be configured using the duplex full command.
