l-1 0 System organization
CPU/Network UEM
(NTGD39AAIDC)’
Table 1-3
Identification of CPU/Network UEM (NTGD39AAIDC)
Unit Number-required
per UEM
Common Equipment Power
1
Supply (CE Pwr Sup)
(AC-
NT8D29AB)
(DC-NTGD41AB)
Network cards (QPC414)
18
Superloop Network cards
~6
(NT8D04AA)
Clock Controller/Serial Data
1
Interface (SDI)
(QPC471 /QPC139)
Peripheral Signalling card
1
(QPC43)
Three
Port
Extender
(QPC441)
1
Mass Storage interface (MSI)
1
(QPC584) or Floppy Disk
Interface (FDI)
(NT8D68AA)
CPU Function card (QPC579)
1
CPU Interface card (QPC580)
1
Changeover and Memory
1
Arbitrator (CMA) card (QPC581)
768K Memory card (QPC583)
1
Serial Data Interface (SDI) card
1
(QPC139)
Multi-Drive Unit (MDU)
1
(NT8D69AA)
or Floppy Disk Unit
(FDU)
(NT8D68AA)
Note: The Multi-Disk Unit (MDU) requires MSI cards; the
Floppy Disk Unit (FDU) requires FDI cards. MDU/FDU
occupies two slots.
System engineering 553-3001-151
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