ITech IT8500plus Series - Chapter 1: Inspection and Installation

8
RS-232
IT8513B+/IT8514B+/IT8514C+/IT8516C+ electronic load has a DB9 interface
on rear panel. Connect E-load and computer by cable of COM ends (DB9).
Composite key [Shift] + [8] on front board can be used to enter system menu
for activation.
⚫ RS-232 Interface
In RS-232 interface, all SCPI commands can be used for programming. If
RS-232 interface is selected, in accordance with internal connection of data
terminal equipment (DTE) and data communication equipment (DCE) as
defined in EIA RS-232, the load is connected to another DTE (e.g., PC COM
interface) with direct-connected Modem cable.
RS232 Pins of Plug
Base Pin
Number
Description
1
No conjunction
2
TXD, data transmission
3
RXD, data receiving
4
No conjunction
5
GND, grounding
6
No conjunction
7
CTS, clear to send
8
RTS, request to send
9
No conjunction
⚫ Communication Setup
Please ensure the PC and the load have the same configuration in the
following items.
Baudrate: 9600(4800, 9600, 19200, 38400). You could enter the system
menu to set the baudrate.
Data bit: 8
Stop bit: 1
Parity bit: (none, even, odd)