Serial Line Interfaces

6

Item

Component

Name

Purpose

1

Screw terminal

RXD or

RS-232: RXD (Received Data)

 

 

RXA

RS-422/485:RXA (Received Data -)

2

Screw terminal

CTS or

RS-232: CTS (Clear to Send)

 

 

RXB

RS-422/485: RXB (Received Data +)

3

Screw terminal

RTS or

RS-232: RTS (Request to Send)

 

 

TXB

RS-422/485: TXB (Transmit Data +)

4

Screw terminal

TXD or

RS-232: TXD (Transmit Data)

 

 

TXA

RS-422/485: TXA (Transmit Data -)

5,6,7

Screw terminal

NC

No connection

8

Screw terminal

GND

Signal ground

9

Reset switch

RESET

Push to power reset and initialize

10

LED (Red)

Fault or

SOLID: Fault in VMSE communication

 

 

Configurati

(read error) or VMSE is in Configuration

 

 

on

Mode

11

LED (Green)

Ready

SOLID: Connection to network host

 

 

 

established

12

LED (Yellow)

Activity

FLASHING: Network traffic

13

LED (Green)

Link

SOLID: VMSE has good Ethernet link

14

Connector (RJ45)

Ethernet

RJ45 connector for Ethernet 10BaseT

 

 

port

 

15

Connector (RJ45)

Serial port

RJ45 connector for RS-232

16

LED (Yellow)

Serial TXD

FLASHING: Indicates transmission

 

 

 

from the serial port

17

LED (Yellow)

Serial RXD

FLASHING: Indicates reception

 

 

 

to the serial port

18

Switch

Switch for

UP: Serial RS-232

 

 

screw block

DOWN: Serial RS-422/485

19

Screw terminal

DC +

Operating power, positive

20

Screw terminal

Ground

Earth ground

21

Screw terminal

DC -

Operating power, negative

 

 

 

 

22

Screw terminal

Ground

Earth ground

 

 

 

 

Figure 6-3. Front Panel Components

NOTEs:

For RS-485 2-wire functionality, pins 1 & 4 and 2 & 3 of the screw terminals must be connected together.

The RJ-45 Ethernet connector uses industry standard 10Base T connections.

GFK-1852

Chapter 6 Serial Line Interfaces

6-3

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Image 50
GE GFK-1852 user manual Front Panel Components

GFK-1852 specifications

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