3 internal options, settings and test points, 1 connectors, 2 fuse – Cadac Seance User Manual

Page 35: 3 pcb jumpers, 4 pcb mounted led, 5 test points, Internal options, settings and test points -3, 716 ,qwhuqdo#rswlrqv/#vhwwlqjv#dqg#whvw#srlqwv

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Technical section

4-3

Revision SE2005-2

Séance Interface 7975

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CN10 Connector for the optional optical comms board.
CN11 Connector for the Fast copper comms Debug handset.

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20mm 315mA

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J17 Connects hold-up capacitor on the keyboard supply line when fitted. (fitted)
J18 Connects hold-up capacitor on the mouse supply line when fitted. (fitted)
J19 Select PC irq4 for fast copper comms
J20 Select PC irq5 for fast copper comms. (fitted)
J24 Available for software option
J26 Available for software option
J30 Heart beat enable build 2,3
J31 Heart beat enable build 1 (not fitted)

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LD1 currently unused
LD2 Séance background LED, flashes once a second when the Séance program is
running.
LD3 indicates presence of the Ethernet –9v supply when solidly lit.
P1 Display view angle pot.
SW1 Reset switch (not fitted).

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TP1: Ethernet –9V supply return
TP2: System 0V
TP3: System 0V
TP4: Fast comms interrupt
TP5: PC interrupts
TP6: Swm2
TP7: Swm1
TP8: Frame
TP9: Fast comms receive
TP10: Fast comms transmit
TP11: Fast comms Timeline in

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