S/5
TM
8-Module Frame, F-CU8 -12
9
Document no. M1125635-05
2.1.2 CPU mother board
The CPU mother board connects the CPU board and other boards (e.g. UPI4NET and optional
display controller board) and functions as a bus between them.
There are connectors for four PC boards. Two of those are normally occupied (B-UPI4NET and
B-CPU6 with integrated display controller) and two are reserved for, e.g. optional display
controllers, B-DISPX boards. The bus structure is the same in all S/5 monitors.
ON/STBY-line is connected only to a B-CPU6 board connector from where it goes directly to
Keyboard and ON/STBY switch. The CPU mother board is connected to module mother board
by 25-pin D-connector.
2.1.3 Module mother board
This board connects the modules and the main frame together electrically. Module bus
structure is the same in all S/5 monitors. There are connectors for 4 double-width or
8 single-width modules.
2.2 Connectors and signals
Figure 7 F-CU8 connectors
(1) Main power, receptacle for power cord
(2) External battery connector
(3) B-UPI4NET board
(4) B-CPU6 board with integrated display controller
(5) Display controller board, B-DISPX (optional)
(6) Equipotential connector
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1
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6
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