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G304k2, Ommunicating, Power supply requirements – Red Lion G304K2 4.3" Operator Interface with TFT Display User Manual

Page 3: Pc connection

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GND

3

R.08 (R2)

4.685 (119)

3.661 (93)

c

ommunIcatIng

w

Ith

the

g304K2

The G304K2 has two serial ports combined into a single DB9-M connector.

1

5

9

6

PC (RS-232)

PIN

SYMBOL

COM1 (RS-232) COM3 (RS-485)

COM1 (RS-485)

4 wire

COM1 (RS-485)

2 wire

1

RxA

Data-

Rx-

2

RxB

Data+

Rx+

3

TxA

Tx-

4

TxB

Tx+

5

GND

Signal Ground

6

Tx

Transmit

7

RxA

Data-

8

RxB

Data+

9

Rx

Receive

DB9-M

POWER SUPPLY REQUIREMENTS

The G304K2 requires a 24 VDC ±20% power supply. Please take care to

observe the following points:

- The wire used to connect the operator interface’s power supply should

be at least 22-gage wire. If a longer cable run is used, a heavier gage

wire should be used. The routing of the cable should be kept away from

large contactors, inverters, and other devices which may generate

significant electrical noise.

- A power supply with a Class 2 or SELV rating is to be used. A Class 2

or SELV power supply provides isolation to accessible circuits from

hazardous voltage levels generated by a mains power supply due to

single faults. SELV is an acronym for “safety extra-low voltage.”

Safety extra-low voltage circuits shall exhibit voltages safe to touch

both under normal operating conditions and after a single fault, such as

a breakdown of a layer of basic insulation or after the failure of a single

component has occurred.

PC CONNECTION

Configuration files are downloaded to the Kadet 2 via the PC port, which can

be connected to a computer via various cables.

USB to Serial

PT# CBLUSB4K (includes CBLPRO4K)

Cable

PT# CBLPRO4K