Assembly instructions for Bepi board "INTETHER"

NB Locations are given in the form  C.Rx
   where C is the column number (in the range 1 to 26),
         R is the row number (in the range 1 to 87),
         x is a special symbol (either absent or + or -).
           if +, the column number will be even and the connection
                 is to be made to the "extended" position, 0.1" to
                 the right of the "normal" position (bussed to +5V).
           if -, the column number will be odd and the component
                 is to be connected to the ground plane in addition
                 to a leg being put through the board at the normal
                 position.
   Examples:
     25.55   means column 25, row 55, "normal" pin.
     24.55+  means column 24, row 55, "extended" pin.
     11.14-  means column 11, row 14, attaching to ground plane.

**NB** In the case of stake pin connections with a '-' sign, it is only the
stake pin that goes through the board to the wiring side, the component leg is
to be passed through the notch in the pin, and then curled round and soldered
direct to the ground plane. In the case of decouplers not using stake pins, both
component legs go through the board as normal, and the ground leg is soldered to
the ground plane before wiring.  Components mounted on stake pins to be fitted
AFTER wiring.

Two DIN edge connectors are to be fitted (after wiring), one for the APM
front bus, one for the backplane.  They can both be 64-pin, as the backplane
connection is only used for supplying power.

Stake pins:

25.55, 26.55, 24.55+, 24.54+   all 4 wired together (+5V)
25.86, 26.86, 25.87            all 3 wired together (ground)
25.85, 26.85, 23.87-           all 3 wired together (ground)
25.84, 26.84, 27.19*           all 3 wired together (+12V) (* edge B15A)
22.11,  22.12                  c1:  22pF
25.6,   25.7-                  c2:  33pF
25.1-,  25.2                   c3:  33pF
25.3,   25.5                   x1:  20MHz
23.16-, 24.16                  r1:  120R
23.17-, 24.17                  r2:  120R
23.19,  24.19                  r3:  39R
23.20,  24.20                  r4:  39R
23.25,  24.25+                 r5:  1K5   (leave out)
23.26-, 24.26                  r6:  3K5   (leave out)
23.22,  24.22                  r7:  39R
23.23,  24.23                  r8:  39R
23.28,  24.28+                 r9:  1K5   (leave out)
23.29-, 24.29                  r10: 3K5   (leave out)
23.32,  24.32+                 r11: 5K
23.33-, 24.33                  r12: Loop mode shorting link   (leave out)
23.31,  24.31+                 r13: 5K
25.15-, 26.15                  12V decoupler
25.25-, 26.25                  12V decoupler

5V decouplers without stake pins:

5.1-,   6.1+
5.14-,  6.14+
5.27-,  6.27+
5.37-,  6.37+
7.1-,   8.1+
7.14-,  8.14+
7.27-,  8.27+
7.37-,  8.37+
9.1-,   10.1+
9.14-,  10.14+
9.27-,  10.27+
9.40-,  10.40+
11.1-,  12.1+
11.18-, 12.18+
11.35-, 12.35+
15.1-,  16.1+
15.18-, 16.18+
15.35-, 16.35+
17.1-,  18.1+
17.14-, 18.14+
17.27-, 18.27+
19.1-,  20.1+
19.28-, 20.28+
23.1-,  24.1+
23.14-, 24.14+
23.35-, 24.35+

DIL sockets  (All have pin 1 in top left corner, and that is the
              reference point, so for the DIL14 at 7.35, pin 1 is at
              7.35, pin 7 at 7.29, pin 8 at 8.29, pin 14 at 8.35).

0.3" wide:

DIL14 5.35          ic16 74s38
DIL14 7.35          ic17 16MHz oscillator

DIL16 25.23         Tap connector

DIL20 23.12         ic01 82501
DIL20 7.25          ic07 ls245
DIL20 5.25          ic08 ls245
DIL20 7.12          ic09 ls244
DIL20 5.12          ic10 ls244
DIL20 17.25         ic11 ls373
DIL20 17.12         ic12 ls373
DIL20 9.12          ic13 16l8
DIL20 9.25          ic14 16l8
DIL20 9.38          ic15 16r8

DIL60 1.31          For edge connector C pins 1 to 30 (use 14+14+16+16)

0.6" wide:

DIL28 11.16         ic03 43256
DIL28 14.16         ic04 43256
DIL28 11.33         ic05 43256
DIL28 14.33         ic06 43256

DIL48 19.26         ic02 82586 (use 24+24)
