Functional Description - Keithley PDISO-8 User Manual

This section describes the features of the PDISO-8 board to familiarize
you with the operating options and to enable you to make the best use of
your board. Figure 2-1 shows a block diagram of the PDISO-8 board.
470 Ω
IP0
470 Ω
IP1
470 Ω
IP2
470 Ω
IP3
470 Ω
IP4
470 Ω
IP5
470 Ω
IP6
470 Ω
IP7
Isolated Inputs
Base
Address
Switch

Functional Description

Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Address
Decode
and R/W
Logic
Computer Bus
Figure 2-1. Block Diagram of the PDISO-8
Bit 0
Response
Bit 1
Switch
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bus
Buffers
2
OP0
OP1
OP2
OP3
OP4
OP5
OP6
OP7
Relay Outputs
2-1