Agilent Technologies E3632A - Manual (Page 65)

Chapter 3 Front-Panel Operation
RS-232 Interface Configuration
63
3
Connection to a Computer or Terminal
To connect the power supply to a computer or terminal, you must have the
proper interface cable. Most computers and terminals are DTE ( Data Terminal
Equipment ) devices. Since the power supply is also a DTE device, you must
use a DTE-to-DTE interface cable. These cables are also called null-modem,
modem-eliminator , or crossover cables .
The interface cable must also have the proper connector on each end and the
internal wiring must be correct. Connectors typically have 9 pins (DB-9
connector) or 25 pins (DB-25 connector) with a “male” or “female” pin
configuration. A male connector has pins inside the connector shell and a
female connector has holes inside the connector shell.
If you cannot find the correct cable for your configuration, you may have to
use a wiring adapter . If you are using a DTE-to-DTE cable, make sure the
adapter is a “straight-through” type. Typical adapters include gender changers,
null-modem adapters, and DB-9 to DB-25 adapters.
The cable and adapter diagrams shown below can be used to connect the
power supply to most computers or terminals . If your configuration is
different than those described, order the Agilent 34399A Adapter Kit . This kit
contains adapters for connection to other computers, terminals, and modems.
Instructions and pin diagrams are included with the adapter kit.
DB-9 Serial Connection If your computer or terminal has a 9-pin serial port
with a male connector, use the null-modem cable included with the Agilent
34398A Cable Kit. This cable has a 9-pin female connector on each end. The
cable pin diagram is shown below .
Instrument PC
DB9
Male
DB9
Female
DB9
Female
DB9
Male
DCD
RX
TX
DTR
1
2
3
4
5
6
7
8
9
GND
DSR
RTS
CTS
RI
1
2
3
4
5
6
7
8
9
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
5182-4794
Cable