3com MSR 20-20 Release Note
3Com MSR Family Release Notes
Software Version 5.20
3Com MSR Models 20-20, 20-21, 20-40, 30-16, 30-20, 30-40,
30-60, 50-40, 50-60
Software Version 5.20 Release 1508
Part Number: 10016435 rev. AA
Published Date: October 2007