CABLES TO CONNECT THE AND-OR CARD OUTPUTS TO FSTD INPUTS
     ========================================================

    Each AND-OR card must communicate  its 'AND-OR fired' signal to an FSTD
card. There are  16 pairs of AND-OR  cards in each  AND-OR cell. Currently,
each FSTD handles  the output  'AND-OR fired' signals  of 4 pairs of AND-OR
cards. Therefore, 4 FSTD cards are required to monitor the 32 AND-OR cards. 
     
    Each FSTD  card is  connected to its  AND-OR cards  with a harness of 8
twisted-pair cables. On  the FSTD end, the cables  are terminated in an AMP
34 contact housing (of  which only 8 contacts are  used), wired with red on
top. The 8 AND-OR  ends of this  harness are  terminated in 8 AMP 2 contact
housings. 

    It is important to guarantee that the harness is cabled correctly. Each
FSTD card is responsible for 4  Specific Triggers. Each Specific Trigger is
currently  triggered by 2  'AND-OR fired'  signals  (resulting in each FSTD
monitoring  8  AND-OR cards  as  mentioned  above). If each  AND-OR card is
designated with a code of  ANDOR/CHANNEL, where CHANNEL is the FSTD channel
being used to read the AND-OR card,  and ANDOR designates which part of the
Specific Trigger  the AND-OR card  monitors (ANDOR =  1 would correspond to
trigger bits 0-127; ANDOR = 2 would  correspond to trigger bits 128-255), a
mapping from each FSTD to its 8 AND-OR cards can be defined: 

	
	FSTD J-3 pin pair			ANDOR/CHANNEL
--------------------------------------------------------------------------
	31, 32					1/1
	29, 30					2/1
	23, 24					1/2
	21, 22					2/2
	15, 16					1/3
	13, 14					2/3
	7, 8					1/4
	5, 6					2/4

     On each AND-OR card, the cable should be connected to J-3, pins 33 and
34. There are 4  identical copies of this cable  per AND-OR cell: one cable
for each  group of  4  Specific  Triggers. There  are also  2 AND-OR cells,
therefore,  8 identical  copies of  this cable  are  necessary for complete
operation.