beautypg.com

IEI Integration ECW-281B-N270-WT v3.01 User Manual

Page 55

background image

ECW-281B/281B2-R30/N270 Embedded System

Page 40

3.5.3 COM 2 Function Select Jumper (ECW-281B Series Only)

Jumper Label:

JP1

Jumper Type:

8-pin header

Jumper Settings:

See

77

Table 3-22

Jumper Location:

See

77

Figure 3-21

The COM 2 Function Select jumper sets the communication protocol used by the second

serial communications port (COM 2) as RS-232, RS-422 or RS-485. The COM 2 Function

Select settings are shown in

77

Table 3-22

.

COM 2 Function Select

Description

Short 1-2

RS-232

Default

Short 3-4

RS-422

Short 5-6

RS-485

Short 5-6

Short 7-8

RS-485 with RTS control

Table 3-22: COM 2 Function Select Jumper Settings

The COM 2 Function Select jumper location is shown in

77

Figure 3-21

.

Figure 3-21: COM 2 Function Select Jumper Location

This manual is related to the following products: