Nortel DMS-100 Series Manual page 9

Disk Drive (NT6M72xx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1
Removing the Faulty Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-3
Installing the Replacement Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-6
List of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
Appendix - DPP power and ground requirements . . . . . . . . . . 21-1
DC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
Power alarm condition reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
AC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
DPP external connector wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-5
Grounding interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-5
List of figures
CPU with DMA (A1 and B1) circuit pack (NT6M62BA) options . . . . . . . . . . . . . . 2-6
EPROM (A2 and B2) circuit pack options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Memory Expansion (A3 and B3) circuit pack (NT6M64AA) options . . . . . . . . . . . 4-5
Error Control II (A5) circuit pack (NT6M65AA) options . . . . . . . . . . . . . . . . . . . . 5-9
Error Control II Jumper (B5) circuit pack (NTM609AB) options . . . . . . . . . . . . . 5-10
QSIO circuit pack (NT6M60AA) options - slot 6 . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
QSIO (A6 and B6) circuit pack (NT6M60AA) baud rate selector switches . . . . . 6-9
Quad SIO (A6 and B6) circuit pack (NT6M60BA) options . . . . . . . . . . . . . . . . . 6-14
Quad SIO (A6 and B6) circuit pack (NT6M60BA) baud rate selector
switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Quad SIO (A6 and B6) circuit pack (NT6M60BA) peripheral switches and
indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
56K Interface (A7 and B7) circuit pack (NT6M94AA amd NT6M94BA)
options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Disk Interface circuit pack (NT6M66AC, NT6M66AH, and NT6M66AL)
options - slot 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
SCSI circuit pack (NT6M66BA; 380-Mbyte disk drives with 56K polling
and 760-Mbyte disk drives and NT6M66BD; no longer supported)
options - slot 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
SCSI circuit pack (NT6M66CA; 1- and 2-Gbyte disk drives)
options - slot 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
DSI (slots 12 and 13) circuit packs (NT6M70AA and NT6M70CF)
options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Data stream interface (A12, B12, A13, and B13) circuit packs
(NT6M70AC) options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
Bus Terminator (slot 14) circuit packs (NT6M68AA) options . . . . . . . . . . . . . . 11-10
P/A Comm (A16) circuit pack (NT6M64AA; release 01-06) options . . . . . . . . . 12-5
P/A Comm (A16) circuit pack (NT6M84AA; release 07 and NT6M84BA)
options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-6
Disk II Crossover (A15 and B15) circuit pack (NT6M72AC, NT6M72AD,
and NT6M72AE; 72-, 140- and 380-Mbyte disk drives for Non-Turbo
DPPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-6
Disk Controller (A21A1 and B21A1) circuit pack (680-9143) options . . . . . . . . 13-9
SCSI Crossover (A15 and B15) circuit pack (NT6M93AA; 380- and
760-Mbyte disk drives for Turbo DPPs) options . . . . . . . . . . . . . . . . . . . . . . . 14-6
DPP Hardware Component Replacement Guide DPP001 and up
Contents vii