Agilent Technologies E3631-90002, User Manual, Page: 55 / 166

Chapter 3 Front-Panel Operation
RS-232 Interface Configuration
54
RS-232 Interface Configuration
You connect the power supply to the RS-232 interface using the 9-pin (DB-9)
serial connector on the rear panel. The power supply is configured as a DTE
(Data Terminal Equipment) device. For all communications over the RS-232
interface, the power supply uses two handshake lines: DTR (Data Terminal
Ready, on pin 4) and DSR (
Data Set Ready
, on pin 6).
The following sections contain information to help you use the power supply
over the RS-232 interface. The programming commands for RS-232 are
explained on page 87.
RS-232 Configuration Overview
Configure the RS-232 interface using the parameters shown below. Use
the front-panel
key to select the baud rate, parity, and
number of data bits (see page 51 for more information to configure from
the front panel).
• Baud Rate: 300, 600, 1200, 2400, 4800, or
9600
baud (
factory setting
)
• Parity and Data Bits: None / 8 data bits ( factory setting )
Even / 7 data bits, or
Odd / 7 data bits
• Number of Start Bits:
1 bit
(
fixed
)
• Number of Stop Bits: 2 bits ( fixed )
RS-232 Data Frame Format
A character frame consists of all the transmitted bits that make up a single
character. The frame is defined as the characters from the start bit to the
last stop bit , inclusively. Within the frame, you can select the baud rate,
number of data bits, and parity type. The power supply uses the following
frame formats for seven and eight data bits.
I/O Config