viii Contents
297-1001-539 Standard 01.03 September 2000
SCSI Crossover (A15 and B15) circuit pack (NT6M93BA; 1- and
2-Gigabyte disk drives for Turbo DPPs) options . . . . . . . . . . . . . . . . . . . . . . 14-7
56K Crossover (B16) circuit pack (NT6M48AA) options . . . . . . . . . . . . . . . . . . 15-5
Four-Channel Communications (A17) circuit pack (NT6M85AA) options . . . . . 16-4
56K Connector circuit pack assembly (B26) panel (NT6M49AA) options . . . . . 17-4
DPP Power Supply Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2
Location of J1 on disk drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-5
DPP power and alarm bulkhead connectors (sheet 1 of 3) . . . . . . . . . . . . . . . . 21-2
DPP power and alarm bulkhead connectors (sheet 2 of 3). . . . . . . . . . . . . . . . . 21-3
DPP power and alarm bulkhead connectors (sheet 3 of 3). . . . . . . . . . . . . . . . . 21-4
DPP system grounding interface to central office grounding system . . . . . . . . . 21-6
List of tables
ECAC alarm reporting priority sequence - LED display codes . . . . . . . . . . . . . . . 2-7
CPU display control functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
CPU with DMA circuit pack (A1 and B1) options - part number:
NT6M62BA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
EPROM circuit pack (A2 and B2) options part number: NT6M63BF,
NT6M63CL, NT6M63CH, NT6M63CF; Non-Turbo DPPs . . . . . . . . . . . . . . . . 3-8
EPROM circuit pack (A2 and B2) options - part number: NT6M63CJ;
Turbo DPPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
EPROM circuit pack (A2 and B2) options - part number: NT6M63FE;
Turbo DPPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Memory Expansion circuit pack (A3 and B3) options - part number:
NT6M64AA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Error control II circuit pack (A5) options - part number: NT6M65AA . . . . . . . . . . 5-7
Error control II jumper circuit pack (B5) options - part number: NTM609AB . . . . 5-8
QSIO circuit pack (A6 and B6) options - part number: NT6M60AA . . . . . . . . . . 6-5
QSIO circuit pack (A6 and B6) options - part number: NT6M60BA . . . . . . . . . 6-10
56K interface circuit pack (A7 and B7) options - part numbers:
NT6M94AA and NT6M94BA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Disk interface circuit pack (A11 and B11) options - part number: NT6M66AC
and/or NT6M66AL; 72-Mbyte and 140-Mbyte disk drives . . . . . . . . . . . . . . . . 8-5
Disk interface circuit pack (A11 and B11) options - part number: NT6M66AH;
380-Mbyte disk drives, DPP systems w/o 56K polling . . . . . . . . . . . . . . . . . . 8-5
SCSI circuit pack (A11 and B11) options - part number: NT6M66BA; 380-Mbyte
disk drives with 56K polling and 760-Mbyte Disk Drives and NT6M66BD; no
longer supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
SCSI circuit pack (A11 and B11) options - part number: NT6M66CA; 1- and 2-Gbyte
disk drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
DSI circuit packs (slots 12 and 13) options - part number: NT6M70AA and
NT6M70CF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
DSI circuit packs (slots 12 and 13) options - part number: NT6M70AC . . . . . . 10-7
Bus Terminator circuit pack (slot 14) options - part number: NT6M68AA . . . . 11-10
P/A Comm circuit pack (A16) options - part number: NT6M84AA
(release 01-06) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-5
P/A Comm circuit pack (A16) options - part number: NT6M84AA
(release 07) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-7
P/A Comm circuit pack (A16) options - part number: NT6M84BA . . . . . . . . . . . 12-9