PMAC-Lite Hardware Reference
E-Point Descriptions
11
E7: Machine Input Source/Sink Control
E Point & Physical
Layout
Location Description
Default
E7
D1
Jump pin 1 to 2 to apply +5V to input
reference resistor sip pack; this will
bias MI1 to MI8 inputs to +5V for
“OFF” state; input must then be
grounded for “ON” state.
Jump pin 2 to 3 to apply GND to input
reference resistor sip pack; this will
bias MI1 to MI8 inputs to GND for
“OFF” state; input must then be pulled
up for “ON” state (+5V to +24V).
1-2 Jumper
installed
E9, E10, E13, E14: Serial Interface Direction Control
The E9, E10, E13, and E14 jumpers control whether the RS-232 serial port will be in DCE or DTE
format. The default configuration permits straight-across connection to a PC DB-9 serial port.
E Point & Physical
Layout
Location Description
Default
E9 E10
E1
Jump E9-1 to E9-2 to allow RXD/ to
be input on J4-3. Jump E10-1 to E10-
2 to allow TXD/ to be output on J4-5.
Jump E9-1 to E10-1 to allow TXD/ to
be output on J4-3. Jump E9-2 to E10-
2 to allow RXD/ to be input on J4-5.
1-2 Jumpers
installed
E13 E14
E1
Jump E13-1 to E13-2 to allow RTS to
be input on J4-7. Jump E14-1 to E14-
2 to allow CTS to be output on J4-9.
Jump E13-1 to E14-1 to allow CTS to
be output on J4-7. Jump E13-2 to
E14-2 to allow ‘RTS’ to be input on
J4-9.
1-2 Jumpers
installed
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