Table of Contents
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A . Positions on Circuit Card (Front View)
B. View A of
A
-
1 Block
0
N C I
0
0
0
0
0
0
Points
101
R2
or
A
0
0
4 0
20'
Hold Coil
0
0
0
0
101 R3 EB
0
0
o
o
6 0
10'
IOlL P
O
3
i
O
4
O
0
0
0
0
7 0
- %
o r lOlL I N 0
Relay
o
o
101 C6
lOlL 2 N 0
1°IL
O
+++
O
8 0
-
0-
or B
o
o
o
o
o
o
102C7
9 0
20'
lOlL H
0 4
0
-
0
0
0
o
0
o
0
o
0
0
0
0
0
U
R
101 CRlO
101
C R
10 FC
C . Relay Numbering
D. Component Numbering
Figure 6-2. Locations-Relay Board and Relays
201, 202, etc. Each block consists of two columns of nine
holes, defining the left edge and right edge of the blocks.
The bottom of the block is defined by two groups of three
holes each (Figure 6-2, view
B).
The number within the
block is the same for each block. This enables each hole to
be specified if necessary. In Figure 6-2, view B, the hole
10 1 F4 has a
+
beside it.
Relays are placed on pins that are secured to the board.
When more than one relay is in a block, the relay may be
designated by U or A (upper), and L or B (lower). The U is
the top relay, the one closest to the connector tabs. An
example is 10 1 U and 10 1 L as shown in Figure 6-2, view C.
There will be one space between the relays.
Components are located between the two columns within
a block or between blocks (Figure 6-2, view D). The
column rows are numbered from top to bottom within a
block. A component within a block is designated by block,
component type, and row numbers. A component between
blocks is designated by the from-block, component, row,
from-pin, and to-pin.
6.2.1 Reed Relays
As shown in Figure 6-2, view C, the reed-relay points and
coil connections are numbered. The relay is
always
placed
on the card so that the pick coil is at the top and the
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