21 | Keysight | E4990A Impedance Analyzer 20 Hz to 10/20/30/50/120 MHz - Data Sheet
Interface
GPIB
24-pin D-Sub (Type D-24), female; compatible with IEEE-488.
IEEE-488 interface specification is designed to be used in environment where electrical noise is relatively low.
LAN or USBTMC interface is recommended to use at the higher electrical noise environment.
USB host port
Universal serial bus jack, Type A configuration; female; provides connection to mouse, key board, printer or
USB stick memory.
USB (USBTMC ) interface port
Universal serial bus jack, Type B configuration (4 contacts inline); female; provides connection to an external
PC; compatible with USBTMC-USB488 and USB 2.0.LA
USB Test and Measurement Class (TMC) interface that communicates over USB, complying with the IEEE 488.1
and IEEE 488.2 standards.
LAN
10/100/1000 Base T Ethernet, 8-pin configuration; auto selects between the two data rates
15-pin mini D-Sub; female; drives VGA compatible monitors
Video output
Handler interface
Connector type
Signal type
36-pin centronics, female
Negative logic, opto-isolated, open collector output
See the following figure. Refer to Help for the definition of each pin.
Pin location
18 17
15 14
13 12 11 10
16
9
8
7
6
5
4
3
2
1
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
Figure 8. 24 bit I/O port pin assignment
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