HP 98568A Installation Instruction page 114

Hp 9000 series 300 computers

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HP 98622A GPIO Interface

d. Install or remove the jumpers on your HP 98622A card(s) as required by

your peripheral.

• DOUT CLEAR Jumper. With the jumper installed, both data output

registers are cleared at power up and after an interface reset. With the

jumper removed, contents of the register are undefined. The card is

shipped without the jumper. If you intend to use the HP 9884A Paper

Tape Punch with this interface, the jumper should be in .

• BURST Jumper. With the jumper installed, there is better overall

system performance, but slightly slower GPIO performance on

high-speed transfers. With the removed, there is slightly degraded

overall system performance, but better GPIO performance for transfers

greater than lOOK transfers/second. The card is shipped with the

jumper. If you intend to use the HP 9884A Paper Tape Punch with

this interface, the jumper should be removed.

Adding Interface Cards

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