Board Descriptions
A - 16
OKIOFFICE 44 Serv. Man., P/N 59276801
300 bps Receive Mode
Figure A2.1.5 shows 300bps receive protocol signal route.
In G3 communication, this is the route of the procedural control signals (pre-message, post-message phases
etc.) at 300bps.
The 300bps modulated signals received via the telephone line L1 and L2 of the NCU are sent from pin R to
Pin RXA1 of the modem. After demodulation by the modem, the demodulated digital signals are sent to the
CPU via the data bus from the modem. The data is read and decoded by the CPU and written into the DRAM.
The written data is interpreted according to bit assignment of the binary procedural signals in the ITU recom-
mendations. The successive modes of communication (for example, line density, encoding scheme, etc.) are
determined.
Summary of Contents for OKIOFFICE 44
Page 2: ...All specifications are subject to change without notice Service Manual OKIOFFICE 44 59276801...
Page 135: ...Disassembly 4 6 OKIOFFICE 44 Service Manual P N 59276801 Whole Unit Picture FX048 CP4 1 Fig 01...
Page 329: ...Illustrated Parts List D 6 OKIOFFICE 44 Service Manual P N 59276801 Section 2 Printer Unit...
Page 331: ...Illustrated Parts List D 8 OKIOFFICE 44 Service Manual P N 59276801 Section 3 Operator Panel...
Page 351: ...Illustrated Parts List D 28 OKIOFFICE 44 Service Manual P N 59276801 Section 12 Cables...
Page 357: ...Board Layout E 2 OKIOFFICE 44 Service Manual P N 59276801 MEM eps E 2 MEM PCB...
Page 358: ...Board Layout E 3 OKIOFFICE 44 Service Manual P N 59276801 TEL U eps E 3 TEL U PCB...
Page 359: ...Board Layout E 4 OKIOFFICE 44 Service Manual P N 59276801 Hook eps E 4 Hook PCB...
Page 388: ...OKIOFFICE 44 Service Manual Part Number 59276801 Printed in the USA...