3009

3009 is the Local I/O bus card.

Introduction
What does it do?

Switches and indicators
There is a DIP switch with four switches on this card. Switches 3 and 4 are not used. IOX address bit 15 active will block this card.
 * switch 1 off - 0 <= device no. <= 1777, 0 <= ident no. <= 377
 * switch 1 on - 2000 <= device no. <= 3777, 400 <= ident no. <= 777
 * switch 2 off - normal
 * switch 2 on - block all interfaces on this bus.

Connectors
The A and B connectors are used for I/O, the C connector is used for the ND-100 Bus.

I/O Devices on the card
none?

Daughter cards
There are connectors for two daughter cards on this card. Mine only has one. Here are two pictures of it: