Nortel DMS-100 Series Product Manual page 43

Table 2-2
List of assemblies and subassemblies
Reference ABBR
designator name
B2 EPROM
B3 DRAM
B5 ERCJ
B6 QUAD
SIO
Full name - part number - usage notes
Erasable, Programmable, Read-Only Memory PCA (continued)
(4) NT6M63CJ
a. compatible with 56K polling
b. use with 380-Mbyte or 760-Mbyte 5 1/4" disk drives
(5) NT6M63CL
a. not compatible with 56K polling
b. use with 72-, 140-, or 380-Mbyte 5 1/4" disk drives
(6) NT6M63FE
a. compatible with 56K polling
b. use with 380-Mbyte or 760-Mbyte 5 1/4" disk drives
c. required for 1-Gbyte or 2-Gbyte 3 1/2" disk drives
Memory Expansion PCA - NT6M64AA
Error Control II Jumper PCA - NTM609AB
Quad Serial Input/Output PCA
(1) NT6M60AA (MD) - use for analog networks only
(2) NT6M60BA - use for analog and digital networks
(Sheet 10 of 16)
DPP Hardware 2-31
DPP Product Guide DPP001 and up