\documentclass[10pt]{article} \topmargin -1in \textheight 6.5in \oddsidemargin 0in \evensidemargin 0in \textwidth 9in \pagestyle{empty} \parindent 0pt \parskip 6pt \usepackage[landscape]{geometry} \usepackage{longtable} \begin{document} \begin{centering} \large\bfseries\sffamily Tape and SIO Connectors\\[10pt] \end{centering} Tape Connector pins are taken from Figure 16 on page 26 of A24-1424-0 {\bf Reference Manual 1401 Data Processing System Original Equipment Manufacturers' Information}. SIO Connector pins are taken from Figure 42 on page 72 of S23-5013 {\bf Customer Engineering Manuals Supplement}, which is the same as Figure 22 on page 26 of Form 223-2644 (the latter being of better quality). The instruction portion is a supplement to {\bf 7040-7044 Data Processing System, Input-Output-Channel A Operations}, Form R23-2652. The figures are a supplement to {\bf Customer Engineering Reference Manual, IBM 7040-7044 Data Processing System Channel A}, Form 223-2644. S23-5013 was not to be taken as a definitive instruction-reference manual, but rather for the sole purpose of supplying information on interface 5 until revision of the above manuals was completed. \begin{longtable}{l|l|l|l|} Pins & \multicolumn{1}{c|}{Tape Connector}& \multicolumn{2}{c|}{SIO Connector}\\ \hline \endfirsthead Pins & \multicolumn{1}{c|}{Tape Connector}& \multicolumn{2}{c|}{SIO Connector}\\ \hline \endhead 1--2 & $-$N: Turn On & +U: A$-$Reg Sel 1 & +U A$-$Reg Sel 2 \\ 3--4 & +P: Turn Off & +U: A$-$Reg Sel 4 & $-$T: Force Odd Redundancy \\ 5--6 & +P: Go & $-$U: Disc Latch Reset In & +U: Not I$-$O Read Call \\ 7--8 & $-$N: BKWD & +U: Select I$-$O Attach Out & $-$T: Reset A$-$Reg Error \\ 9--10 & $-$N: Start Rewind & +U: Set Write Latch In & +U: Set Read Latch In or Disc \\ 11--12 & $-$N: Set Write Status & +U: Set Error Latch In & $-$T: I$-$O Trans EOR \\ 13--14 & +P: Set Read Status & $-$T: I$-$O Trans 1 & +U: I$-$O Disc Out 1 \\ 15 & Empty & +U: I$-$O Disc Out 2 & Empty \\ 16--17 & Empty & +U A$-$Reg Not 1 2 & +U: A$-$Reg AB \\ 18--19 & Empty & +U: A$-$Reg A Not B & $-$T Force Odd Redundancy 1 Out \\ 20--21 & +P: Sel and Rdy Mod IV & $-$U: Disc Latch Reset Out & +U: Not I$-$O Read Call \\ 22--23 & $-$N: Sel and T.I. On & +U: Set I$-$O Latch In & $-$T: Reset A$-$Reg Error 1 \\ 24--25 & $-$N: Sel and T.I. Off & +U: Set Write Latch Out & +U: Set Read Latch Out \\ 26--27 & +P: Sel and at Ld Pt & +U: Set Error Lateh 1 Out & $-$T: I$-$O Trans 2 \\ 28--29 & +P: Sel and not at Ld Pt & +U: Select 1 Out & +U: Select 1 In \\ 30 & Empty & +U: I$-$O Disc In & Empty \\ 31--32 & +P: Sel and Rdy Mod II & +U: A$-$Reg B Not A & +U: A$-$Reg 2 Not 1 \\ 33--34 & +P: Sel and Read only & +U: A$-$Reg Not 8 4 & +U: A$-$Reg 4 Not 8 \\ 35--36 & +P: Sel Ready and Write & +U: A$-$Reg 1 Not 2 & +U: +6V \\ 37--38 & $-$N: Sel and Rewind & +U: Not Start Reset Out & +U: Start Reset \\ 39--40 & +P: Rewind and Unload & +U: Start Reset Out & +U: Data C Out \\ 41--42 & +P: Set Hi Density & +U: Service Request Out 1 & +U: Service Request Out 2 \\ 43--44 & $-$N: Set Lo Density & +U: Service Request In & +U: A$-$Reg 1 2 \\ 45 & Empty & +U: A$-$Reg 8 Not 4 & Empty \\ 46--47 & +P: Hi Density & $-$T: Sel I$-$O Out & $-$T: Sel I$-$O In \\ 48--49 & Shield and Spare & $-$T: Force Odd Redundancy 2 & +U: Data C Load or Move In \\ 50--51 & Empty & $-$T: I$-$O Write Call In & $-$T: I$-$O Write Call Out \\ 52--53 & Empty & $-$C: I$-$O Ready (Overlap) & I$-$O Ready (Overlap) \\ 54--55 & Empty & $-$T: Not Sel I$-$O Out & $-$T Not Sel I$-$O In \\ 54--55 & Empty & \multicolumn{2}{c|}{(Block Readdress)} \\ 56--57 & Empty & +U: Data C Load Or Move Out & Emergency Off Switch \\ 58--59 & Empty & Emergency Off Switch & 1401 Is Stopped \\ 60 & Empty & 1401 Is Stopped & Empty \\ 61--62 & Empty & Empty & Empty \\ 63--64 & Empty & Empty & Empty \\ 65--66 & Empty & Empty & Empty \\ 67--69 & Empty & Empty & Empty \\ 69--70 & Empty & Drop 1401 Power & Drop 1401 Power \\ 72--73 & Empty & Empty & Empty \\ 73--74 & Empty & Empty & Empty \\ 75 & Empty & Empty & Empty \\ 76--77 & Empty & Empty & Empty \\ 78--79 & +P: Select TU 1 & Empty & Empty \\ 80 & Empty & Empty & Empty \\ 81 & Empty & Empty & Empty \\ 82--83 & 8V PP: Read Bus 1 & $-$C: Single Character Transfer & Single Character Transfer \\ 84--85 & 8V PP: Read Bus 2 & $-$C: 1401 Reset & 1401 Reset \\ 86--87 & +P: Select TU 2 & $-$C: I$-$O Transfer 1 (Error) & I$-$O Transfer 1 (Error) \\ 88--89 & +P: Select TU 3 & $-$C: I$-$O Transfer 2 & I$-$O Transfer 2 \\ 90 & Empty & $-$C: I$-$O Transfer 3 & Empty \\ 91 & Empty & $-$C: End of Transmission & Empty \\ 92--93 & 8V PP: Read Bus 4 & End of Transmission & $-$C: I$-$O Readdress \\ 94--95 & 8V PP: Read Bus 8 & I$-$O Readdress & $-$C: I$-$O Process Check \\ 96--97 & +P: Select TU 4 & $-$C: I$-$O Transfer 4 & I$-$O Transfer 4 \\ 98--99 & +P: Select TU 5 & $-$C: I$-$O Transfer 5 & I$-$O Transfer 5 \\ 100 & Empty & I$-$O Transfer 3 & Empty \\ 101 & Empty & $-$C: I$-$O Time 000$-$030 & Empty \\ 102--103 & 8V PP: Read Bus A & I$-$O Time 000$-$030 & $-$C: I$-$O Time 030$-$060 \\ 104--105 & 8V PP: Read Bus B & I$-$O Time 030$-$060 & I$-$O Process Check \\ 106--107 & +P: Select TU 6 & $-$C: I$-$O Transfer 6 & I$-$O Transfer 6 \\ 108-109 & Empty & $-$C: I$-$O Transfer 7 & I$-$O Transfer 7 \\ 110 & Empty & $-$C: Reset Transmission Error Latch & Empty \\ 111 & Empty & $-$C: I$-$O Output WM & Empty \\ 112--113 & 8V PP: Read Bus C & I$-$O Output WM & $-$C: I$-$O Service Request \\ 114--115 & Shield and Spare & I$-$O Service Request & $-$C: Select I$-$O Service Attach \\ 116--117 & Empty & $-$C: I$-$O Transfer 8 & I$-$O Transfer 8 \\ 118--119 & Empty & $-$C: Service Response (1401 SVC Request & Service Response (1401 SVC Request \\ 120 & Empty & Reset Transmission Error Latch & Empty \\ 121 & Empty & $-$C: I$-$O Attachment Write Call & Empty \\ 122--123 & Shield and Spare & I$-$O Attachment Write Call & $-$C: I$-$O Attachment Read Call \\ 124--125 & Shield and Spare & I$-$O Attachment Read Call & Empty \\ 126--127 & Empty & $-$C: I$-$O Time 090$-$000 & I$-$O Time 090$-$000 \\ 128--129 & Empty & $-$C: I$-$O Time 060$-$090 & I$-$O Time 060$-$090 \\ 130--131 & Empty & $-$C: I$-$O 14 Select & I$-$O 14 Select \\ 132--133 & +6V & $-$C: I$-$O Selecting Unit & I$-$O Selecting Unit \\ 134--135 & Empty & $-$C: I$-$O Attention Light & I$-$O Attention Light \\ 136--137 & Empty & $-$C: I$-$O Discionnect & I$-$O Discionnect \\ 138--139 & Empty & $-$C: I$-$O 9 Select & I$-$O 9 Select \\ 140 & $-$6V & $-$C: I$-$O 8 Select & Empty \\ 141--142 & Empty & $-$C: I$-$O 1 Select & I$-$O 1 Select \\ 143--144 & Empty & $-$C: I$-$O 2 Select & I$-$O 2 Select \\ 145--146 & Empty & $-$C: I$-$O 3 Select & I$-$O 3 Select \\ 147--148 & Empty & $-$C: I$-$O 4 Select & I$-$O 4 Select \\ 149--150 & Empty & $-$C: I$-$O 5 Select & I$-$O 5 Select \\ 151--152 & Empty & $-$C: I$-$O 6 Select & I$-$O 6 Select \\ 153--154 & Empty & $-$C: I$-$O 7 Select & I$-$O 7 Select \\ 155 & Empty & I$-$O 8 Select & Empty \\ 156--157 & Empty & $-$C: I$-$O 10 Select & I$-$O 10 Select \\ 158--159 & Empty & $-$C: I$-$O 11 Select & I$-$O 11 Select \\ 160--161 & Empty & $-$C: I$-$O 12 Select & I$-$O 12 Select \\ 162--163 & Ground & $-$C: I$-$O 13 Select & I$-$O 13 Select \\ 164--165 & Empty & $-$C: I$-$O Unit 1 Control & I$-$O Unit 1 Control \\ 166--167 & Empty & $-$C: I$-$O Unit 2 Control & I$-$O Unit 2 Control \\ 168--169 & Empty & $-$C: I$-$O Load & I$-$O Load \\ 170 & $-$12V & $-$C: I$-$O Input WM & Empty \\ 171--172 & $-$N: Write Bus 1 & $-$C: I$-$O Input 1 & I$-$O Input 1 \\ 173--174 & $-$N: Write Bus 2 & $-$C: I$-$O Input 2 & I$-$O Input 2 \\ 175--176 & $-$N: Write Bus 4 & $-$C: I$-$O Input 4 & I$-$O Input 4 \\ 177--178 & $-$N: Write Bus 8 & $-$C: I$-$O Input 8 & I$-$O Input 8 \\ 179--180 & $-$N: Write Bus B & $-$C: I$-$O Input A & I$-$O Input A \\ 181--182 & $-$N: Write Bus A & $-$C: I$-$O Input B & I$-$O Input B \\ 183--184 & $-$N: Write Bus C & $-$C: I$-$O Input C & I$-$O Input C \\ 185 & Empty & I$-$O Input WM & Empty \\ 186--187 & Spare and Shield & $-$C: I$-$O Output 1 & I$-$O Output 1 \\ 188--189 & Spare and Shield & $-$C: I$-$O Output 2 & I$-$O Output 2 \\ 190--191 & Spare and Shield & $-$C: I$-$O Output 4 & I$-$O Output 4 \\ 192--193 & $-$N: Write Echo Pulse & $-$C: I$-$O Output 8 & I$-$O Output 8 \\ 194--195 & $-$N: Reset Wr Toggles & $-$C: I$-$O Output A & I$-$O Output A \\ 196--197 & $-$N: Write Pulse & $-$C: I$-$O Output B & I$-$O Output B \\ 198--199 & Empty & $-$C: I$-$O Output C & I$-$O Output C \\ 200 & Empty & Empty & Empty \\ \end{longtable} Signal is specified for the first pin in the tape connector, and for the specified pin in the SIO connector. \end{document}