Mike's PBX Cookbook

Meridian 1 / SL1 Maintenance Loads

Part Number Card Name - Acronym Maint. Load Command Type

 
CPU (Omega)
Omega-type CPU (QPC579 & QPC580) 35 CPU
All CHANGEOVER & MEMORY ARBITRATOR - CMA cards 35 CMA
All Memory cards 35 MEM
All Disk or tape drices FDI / MSI / EMSI / FDU / MDU / SMDU 37 MSI/TAPE
QPC471 CLOCK CARD - CC 39/60 SCG/CC
 
Core (Thor)
All CALL PROCESSOR cards (CP, CPII, CPIII, CPIV, CP PII) 135 CPU
NT6D63 INPUT OUTPUT PROCESSOR - IOP 137 IOP
NT6D64 CORE MULTI DISK UNIT - CMDU 137 CMDU
NT5D20 IOP / CMDU 137 IOP/CMDU
NT5D20 IODU/C  137 IOP/CMDU
NT4N43 MULTIMEDIA DISK UNIT – MMDU 137 CMDU
NT4N6 SYSTEM UTILITY – SUTL 135 SUTL
 
Extenders
QPC215 SEGMENTED BUS EXTENDERS - SBE 35 EXT
NT6D65 CORE / NETWORK INTERFACE – CNI, CNI3, cCNI 135 CNI
 
Network
QPC441  THREE PORT EXTENDER - 3PE NONE see SBE or CNI
QPC43 PERIPHERAL SIGNALING - PER SIG 32/39 PER / PS
NT8D17 CONF. / TONE & DIGIT SWITCH - CONF / TDS 34/38 ENLX/DISX
QPC414 ENHANCED NETWORK - E-NET 32 loop
NT8D04 SUPERLOOP - SNET, XNET 32 loop
NT8D18 NETWORK / DIGITONE RECEIVER - NET / DTR 32 loop 28
QPC412 INTER-GROUP SWITCH – IGS, DIGS 39 IGS
NTRB33 FIBER JUNCTOR INTERFACE – FIJI  39 FIJI
NTRC48 DUAL RING FIBER NETWORK – RING 29 RING
 
Peripheral Equipment
NT8D01 CONTROLLER (2 or 4) - XPEC2 / XPEC4 32 XPEC
QPC659 DUAL LOOP BUFFER - DLB NONE (Loop)
All PE and IPE Telephone & Trunk cards 32 unit
All DTR cards 32/34 unit
 
SDI CARDS
All SDI cards 37 TTY
QPC757 D-CHANNEL HANDLER - DCHI 37/96 TTY/DCH
NT6D80 MULTIPURPOSE SERIAL DATA LINK - MSDL 37/48/96 TTY/AML/DCH
CPSI CORE PROCESSOR SERIAL INTERFACE 37 TTY
  J-25 TERMINAL, EVEN PORT    
  J-21 MODEM & PRINTER, ODD PORT    
 
DTI / PRI CARDS
QPC472 DIGITAL TRUNK INTERFACE - DTI 60 loop
QPC720 DTI / PRIMARY RATE INTERFACE - DTI / PRI  60 loop
NT5D12 DUAL DTI / PRI - DDP 60 loop
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