Brother HL-3450CN Service Manual page 102

(5) DIMM block
DIMM (Dual-Inline-Memory-Module) allows memory extension by up to 128MB in each
socket. 3 DIMM sockets are available.
The following type of DIMM can be installed into each slot.
x Appearance:
100-pin
x Memory type:
SDRAM
x Access time:
66MHz or more, CL=2
x Parity:
either Parity or Non-parity can be used
x Memory capacity: 16MB, 32MB, 64MB, 128MB
<Recommended DIMM type>
<US>
x 16 Megabytes
x 32 Megabytes
x 64 Megabytes
x 128 Megabytes
<Europe>
x 16 Megabytes
x 32 Megabytes
x 64 Megabytes
x 128 Megabytes
Any combination of DIMM size can be installed into any slot in any order.
(6) External interface block
x Centronics Interface
x Universal Serial Bus (USB)
x Compact Flash
x Ethernet 10/100 Base-TX
x IDE Interface
(7) Engine interface block
The engine interface consists of the following signals;
<IREADY>
The signal indicating the engine is ready
<PRREQ>
Signal requesting printing from the controller
<KEY_STATUS>
Signal indicating that a key switch status on the control panel has changed.
<VSYNC>
Vertical synchronization signal for printing
<HSYNC>
Horizontal synchronization signal for printing
<VIDEO>
Video data signal
<COMMAND>
Command signal sent from the controller to the engine
<STATUS>
Status signal sent from the engine to the controller
TECHWORKS
TECHWORKS
TECHWORKS
TECHWORKS
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