thargiss

The command is status sys-link xyxxxx, where xyxxxx (2A0101 or 2A01) is the cabinet and port of the maintenance board and not a cabinet with an IPSI.
You'll get results that look like the following:

status sys-link 2a0101 Page 1 of 2
Location: 02A0101 Type/Chan: EAL Alarms: none
Current Path: present State: up Time Up: 06/03/2006 06:37
Faulted Path: present Last Fault: 06/03/2006 06:36
Current Hardware Path
Maintenance Maintenance
Location Name Alarms Location Name Alarms
05A PKT-INT none - IPSI Location
PN 05 PKT-BUS none
05A01 EXP-INTF none
5 A-PNC FIBER-LK none
01E04 SNI-BD none
01E03 SNI-BD none
2 A-PNC FIBER-LK none
02A01 EXP-INTF none