Maintenance Use the CE-1000-4, CE-100T-8, CE-MR-6, and CE-MR-10 Maintenance tab to view maintenance information for the card. The Maintenance tab contains the following subtabs: Path Trace Loopback VC4/VC LO Allocation (CE-100T-8) VC4/VC LO Allocation (CE-MR-10) AINS Soak