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13
BCD Option
13-3
13.2 BCD CARD JUMPER TABLE
JUMPER
WHEN USED
S1A
Brings OVERFLOW signal to P8-U18
S2A
Insert for 3-digit multiplex
Remove for 6-digit readout
S3A
Insert for 3-digit multiplex or one-line card-address enable
OR
S3B
4-line card-address enable
S4A
Insert for 3-digit multiplex
OR
S4B
Insert for 6-digit readout
S5A
P8-U20 must be low to enable card
Remove for high or open enable
S5C
P8-L20 must be low to enable card
Remove for high or open enable
S5E
P8-U19 must be low to enable card
Remove for high or open enable
S5G
P8-L19 must be low to enable card
Remove for high or open enable
S6A, S6B,
Install for internal power
S7A, S7B
Remove for isolated power
S8A
Output data is negative-true
or
S8B
Output data is positive-true
13.3 INTERCONNECT BOARD
For mechanical support and electrical interconnection, each BCD board is
shipped with a small 5-pin INTERCONNECT board. Insert onto the main
board pins immediately behind the right-hand side of the display board. The
BCD board itself (component side down) is then plugged into the
interconnect board at J20, with the PCB connection fingers protruding from
the case rear. For assembly detail, refer to Figure 5-4 (in Section 5).
Содержание DP461-S
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