189
Chapter 7 Plug-in Modules
N2263A 32-bit Digital I/O Module
4
7
N2263A Simplified Schematic
The N2263A consists of 32 bidirectional I/O channels, each of which
includes digital in and digital out circuits as shown in the simplified
schematic below. Each input has its own pull-up resistor, allowing easy
detection of external termination (grounded or open-circuited) status.
Each output driver is capable of sinking an externally-supplied current
up to 600 mA, making it possible to control relays without the need for
additional driver circuitry.
PFLG Handshake Signal
OPEN COLLECTOR/
TERMINAL
CONNECTION
BLOCK
ONE I/O LINE
PCTL or I/O
Handshake Signal
CURRENT SINK
(VMOS FET)
DRIVER OUTPUT
INPUT SENSE
REFERENCE
VOLTAGE
10K
+5V
10K
60V
+5V
+5V
Resetable fuse
215
TERMINAL
CONNECTION
BLOCK
10K
+5V
+5V
Resetable fuse
215
TERMINAL
CONNECTION
BLOCK
Summary of Contents for Agilent 3499A
Page 13: ...1 1 Quick Start ...
Page 27: ...2 2 Front Panel Operation ...
Page 55: ...3 3 System Overview ...
Page 77: ...4 4 Features and Functions ...
Page 113: ...5 5 Remote Interface Reference ...
Page 164: ...164 5 ...
Page 165: ...6 6 Error Messages ...
Page 173: ...7 7 Plug in Modules ...
Page 256: ...256 Chapter 7 Plug in Modules 44475A Breadboard Module 7 ...
Page 261: ...261 Chapter 7 Plug in Modules 44476B Microwave Switch Module 4 7 The 44476B is shown below ...
Page 286: ...286 Chapter 7 Plug in Modules Terminals and Connections Information 7 ...
Page 288: ...288 7 ...
Page 289: ...8 8 Application Programs ...
Page 299: ...9 9 Specifications ...
Page 343: ...343 Chapter 9 Specifications 44475A Breadboard Module 4 9 ...