Hello,
Yes, it should.
You could check Table 4-9 VPLS Feature Compatibility by SIP and SPA Combination:
http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/7600series/76cfgsip.html#wp1270728
There are some restricition about H-VPLS on c7600/SIP, like it could be seen at the "VPLS Configuration Guidelines"
section of above link. But they are generic for SIP-600 itself:
---
– H-VPLS with Q-in-Q edge—Requires a Cisco 7600 SIP-600 in the uplink, and any LAN port or Cisco 7600 SIP-600 on the downlink.
- H-VPLS with MPLS edge requires either an OSM module, Cisco 7600 SIP-600, or Cisco 7600 SIP-400 in both the downlink (facing UPE) and uplink (MPLS core).
---
As for SPAs - restriction is about H-VPLS and FastEthernet one:
"Note: H-VPLS is not available on Fast Ethernet SPAs"
http://www.cisco.com/en/US/docs/interfaces_modules/shared_port_adapters/configuration/7600series/76cfgeth.html#wp1196808
Thanks,
Sergey