Maintenance Loads
Overlay programs required for performing system diagnosis and maintenance.
Refer to "NN43001-711_05.05 Software Input Output Reference - Maintenance".
Load (invoke) an overlay program by typing LD XX at the > prompt. Exit by typing four stars ****.
If a prompt ends in a colon (:)...
- enter a question mark (?) for a list of valid responses.
- hit enter to repeat the previous response at that prompt.
- responses can be abbreviated if not ambiguous (SCH0099).
| LD 01 | Template audit |
| LD 30 | Network and Signaling Diagnostic
Basic Rate Interface (BRI) |
| LD 31 | Telephone and Attendant Console Diagnostic |
| LD 32 | Network and Peripheral Equipment Diagnostic
Overlay programs 10, 11, 20 (administration) and 32 are linked
Enable/Disable/Status: card, shelf, superloop, ISDN, BRI, MISP, SILC |
| LD 33 | Peripheral Equipment Diagnostic for 1.5 Mb/s RPE and Fiber Remote IPE |
| LD 34 | Tone and Digit Switch and Digitone Receiver Diagnostic
Tone and Digit Switch (TDS)
Digitone Receiver (DTR) Extended Tone Detector (XTD) Maintenance telephone |
| LD 36 | Trunk Diagnostic |
| LD 37 | Input/Output Diagnostic
Teletypewriter (TTY) Serial Data Interface (SDI) Multipurpose Serial Data Link (MSDL) |
| LD 38 | Conference Circuit Diagnostic |
| LD 39 | Intergroup Switch and System Clock Generator Diagnostic
Intergroup Switch (IGS)
System Clock Generator (SCG) |
| LD 40 & 42 | Call Detail Recording Diagnostic
Call Detail Recording (CDR) |
| LD 43 | Equipment Datadump
Perform datadump (EDD) |
| LD 44 | Software Audit |
| LD 45 | Background Signaling and Switching Diagnostic
Manual Continuity Test (MCT) Background Continuity Test (BCT) |
| LD 46 | Multifrequency Sender Diagnostic for Automatic Number Identification |
| LD 48 | Link Diagnostic
Application Module Link (AML)
Auxiliary Processor Link (APL) Intercept Computer Update (ICU) Command and Status Links (CSL) Multipurpose Serial Data Link (MSDL) Single Terminal Access (STA) Voice Mailbox Administration (VMBA) |
| LD 51 | Intercept Computer Update |
| LD 53 | 2.0 Mb/s Remote Peripheral Equipment Diagnostic |
| LD 54 | Multifrequency Signaling Diagnostic
Multifrequency Signaling (MFE) Multifrequency Compelled Signaling (MFC) |
| LD 60 | Digital Trunk Interface and Primary Rate Interface Diagnostic
Clock Controller (CC) Digital Trunks (DTI/PRI) |
| LD 61 | Message Waiting Lamps Reset |
| LD 62 | 1.5 Mb/s Remote Peripheral Equipment Local End Diagnostic |
| LD 66 | Conversion |
| LD 75 | Digital Trunk Maintenance |
| LD 77 | Manual Print |
| LD 80 | Call Trace
TRAT cust at - for tracing attendant consoles TRAC cust dn - for tracing sets and trunks TRAD loop ch - for tracing calls through digital trunks |
| LD 92 | Automatic Trunk Maintenance |
| LD 96 | D-channel Diagnostic
D-channel (DCH) Multipurpose Serial Data Link (MSDL) D-channel Incoming/Outgoing messages (MSGI/MSGO) |
| LD 117 | Ethernet and Alarm Management
Also an Administration overlay Configure and identify all system alarms IP network related maintenance and diagnostic functions |
| LD 135 | Core Common Equipment Diagnostic
STAT CPU - Core health SCPU - switch cores (HA only) |
| LD 137 | Core Input/Output Diagnostic
Enabling and disabling IOP, CMDU, and cMMDU cards |
| LD 143 | Customer Configuration Backup and Restore
Peripheral software download (PSDL) Keycode Management (KNEW) Upgrades (UPGMG) |