Specifications

AL-1551 ELECTRICAL SECTION 12-6
59 MAD11 OUT DRAM Address bus of DRAM (page memory)
60 GND Power
61 /CAS0 OUT DRAM CAS signal of DRAM (page memory)
62 /CAS1 OUT DRAM CAS signal of DRAM (page memory)
63 /OE OUT DRAM Read enable signal of DRAM (page memory)
64 /WE OUT DRAM Write enable signal of DRAM (page memory)
65 OUTD0 OUT
Reserved
66 OUTD1 OUT Reserved
67 OUTD2 OUT Reserved
68 OUTD3 OUT Reserved
69 3.3V Power
70 OUTD4 OUT
Reserved
71 OUTD5 OUT Reserved
72 GND Power
73 OUTD6 OUT
Reserved
74 OUTD7 OUT Reserved
75 OUTD8 OUT Reserved
76 OUTD9 OUT Reserved
77 OUTD10 OUT Reserved
78 OUTD11 OUT Reserved
79 OUTD12 OUT Reserved
80 OUTD13 OUT Reserved
81 OUTD14 OUT Reserved
82 OUTD15 OUT Reserved
83 /HSYNC OUT PCL board Horizontal sync signal with print area output only
84 /PCLPRD IN
PCL board Print video data (serial) from PCL board
85 /PCLREQ OUT
PCL board DREQ signal to PCL board
86 /PCLACK IN
PCL board ACK signal from PCL board
87 /PCLCS IN
PCL board
88 3.3V Power
89 GND Power
90 5V Power
91 GND Power
92 /FAXPRD IN
Reserved
93 /FAXREQ OUT Reserved
94 /FAXACK IN Reserved
95 3.3V Power
96 /FAXCS IN
Reserved
97 /ESPRD IN Electric sort
board*(Reserved)
(Reserved)
98 GND Power
99 /ESREQ OUT Electric sort
board*(Reserved)
(Reserved)
100 /ESACK IN Electric sort
board*(Reserved)
(Reserved)
101 /ESCS IN Electric sort
board*(Reserved)
(Reserved)
102 PARAD0 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
103 PARAD1 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
104 PARAD2 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
105 PARAD3 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
106 PARAD4 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
107 PARAD5 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
108 5V Power
109 PARAD6 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
110 PARAD7 IN/OUT
1284 board connector DATA bus (IEEE1284 communication port)
111 GND Power
112 /REV OUT
1284 board connector ECP mode I/O select (LOW:P → H)
113 INIT IN
1284 board connector INIT signal (IEEE1284 communication port)
114 /SLCTIN IN
1284 board connector /SLCTIN signal (IEEE1284 communication port)
PIN No. Signal name IN/OUT Connected to Description