34 Common Equipment cards
Quantity-Two
for System option 71, and one per CPU when DTI or

PU

is required in other options.
QPC477 Bus Terminating Unit
System Hardware-System
option
51/61/71
Purpose-Bus Terminating Units
(BTUs)
are installed in the CE Modules.
They provide a logical termination to the CPU and network buses. They are
paddle boards installed in dedicated slots, between circuit cards from the
front of the module.
Quantity-The
following vintages are required for the modules listed:
-
QPC477-A9
One required for each
NT6D39 CPU/NET
and each NT8D35 NET
-
QPC477-A10
One required for each
NT6D39 CPU/NET
and each NT8D35 NET
-
QPC477-A20
One required for each NT8D34 CPU
-
QPC477A21
One required for each NT8D34 CPU
-
QPC477A22
One required for each NT6D39 CPU/NET
QPC513 Enhanced Serial Data InterFace
System Hardware-All
Purpose-Provides
two
serial data interface circuits that can be configured
for either synchronous or asynchronous data communications at rates of up
to 64 kbps (synchronous) or 19.2 kbps (asynchronous).
Note:
Use QPC5 13D with Meridian Mail option and other
applications requiring Integrated Services Digital Network (ISDN)
Application Protocol.
Quantity-As
required per application
Equipment identification and ordering information 553-3001-154