Oki OKIFAX 5400 Maintenance Manual page 301

E17
A3.1.13 E17 Circuit Diagram
1. Block diagram
The circuit diagram shown on page 14/16 consists of the following connector:
•
•
Figure A3.1.18 shows the interface between E17 and memory board.
Figure A3.1.19 shows the interface between E17 and PC interface board.
Note 1: 4 Mbyte memory board can be added to the memory capacity.
CPU
Figure A3.1.18 Interface between E17 Board and Memory Board (option)
40838301TH Rev.1
Connector CN13 that provides an interface between E17 board and optional memory
board.
Connector CN12 and CN17 that provides an interface between E17 board and CTR (PC
interface) board.
E17
MAD00 to MAD07
CN13
MA00 to MA18
WRL-N
RD-N
PCS1-N to PCS4-N
PSREAD-N
5VB
A5, B5, A18,
0V
B18
MEM (option)
CN1 AD00 to AD07
A00 to A18
B12
MWR
A11
MRD-N
A20, A21
PCS1-N to PCS3-N
B19, B20
A19
PSRD-N
A13, B13
5V
0V
A3 - 20
4 MBytes (512k x 8bit x 8)
DRAM