Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 41

Table 2-1
List of assemblies and subassemblies
Reference ABBR
designat name
or
A14
BUS
TERM
A15
SCSI
XOVR
A16
P/A
COMM
A17
4-CHAN
A18
FAN
A19
A20
A21
DISK
B
B1
CPU
B2
EPROM
B3
DRAM
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Full name - part number - usage notes
Bus Terminator PCA - NT6M68AA
SCSI Crossover PCA (located on inner portion of hinged panel at rear
of upper chassis) - NT6M93BA
Power and Alarm Communications PCA (located on the outer portion
of hinged panel at rear of upper chassis) - NT6M84BA
Four Channel Communication PCA (located on the upper connector
panel on left side of the chassis [viewed from the rear] - NT6M85AA
a. Fan Mounting Bracket Assembly - NT6M55DD
b. Fan, 48 V dc - A0287304
c. Fan Filter PCA - NT6M56AD at location A18A1
d. Fan Foam Filter - A0379820
Switch and Status Panel - NT6M59AA
Power Supply Assembly - NT6M71AB
Disk Drive Assembly - NT6M72GA
3 1/2" disk drive with a 1-Gbyte capacity
B Processor (Lower) Chassis - N/A
Central Processor Unit Logic w/DMA PCA - NT6M62BA
Erasable, Programmable, Read-Only Memory PCA
(1) NT6M63FI - for DMS-10 Switching Systems
(2) NT6M63FL - for DMS-100 Switching Systems
Memory Expansion PCA - NT6M64AA
Sheet 2 of 4
Section 060-INDP-111 System Description 2-13