G304k2, Ommunicating, Power supply requirements – Red Lion G304K2 4.3" Operator Interface with TFT Display User Manual
Page 3: Pc connection

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