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EPP-1
ADVANCED MICROCOMPUTER SYSTEMS, INC.
EPP-1
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Card Type
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Multi I/O
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Chipset Controller
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Unidentified
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I/O Options
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Serial port(2), parallel port
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Maximum DRAM
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N/A
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CONNECTIONS
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Purpose
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Location
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Purpose
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Location
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Serial port 1
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CN1
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Serial port 2
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CN3
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Parallel port
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CN2
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PARALLEL PORT INTERRUPT
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IRQ
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H1/A
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H1/B
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H1/C
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H1/D
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H1/E
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H1/F
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H1/G
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H1/H
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H1/I
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H1/J
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H1/K
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2
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Closed
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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3
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Open
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Closed
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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4
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Open
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Open
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Closed
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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5
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Open
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Open
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Open
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Closed
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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6
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Open
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Open
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Open
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Open
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Closed
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Open
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Open
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Open
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Open
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Open
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Open
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7
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Open
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Open
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Open
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Open
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Open
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Closed
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Open
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Open
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Open
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Open
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Open
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10
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Open
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Open
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Open
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Open
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Open
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Open
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Closed
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Open
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Open
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Open
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Open
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11
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Closed
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Open
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Open
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Open
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12
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Closed
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Open
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Open
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14
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Closed
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Open
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15
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Open
|
Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Open
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Closed
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Note: Interrupt settings for H1 Shown. H2, and H3 use identical configurations. H1 affects Parallel port 1, H2 affects serial port 1 and H3 affects serial port 2.
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SERIAL PORT 1 ADDRESS SELECT
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Address
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H6/A
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H6/B
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COM1 (3F8h)
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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COM2 (2F8h)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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COM3 (3E8h)
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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Disabled
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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SERIAL PORT 2 ADDRESS SELECT
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Address
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H7/A
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H7/B
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COM2 (2F8h)
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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COM3 (3F8h)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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COM4 (2E8h)
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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Disabled
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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PARALLEL PORT ADDRESS SELECT
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Address
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H4/A
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H4/B
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278h
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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378h
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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N/A
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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Disabled
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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PARALLEL PORT MODE SELECT
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Mode
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H5/A
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H5/B
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Normal
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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EPP
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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ECP
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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EPP & ECP
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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