LK204-25-USB-WB Matrix Orbital, LK204-25-USB-WB Datasheet - Page 17

• Manufacturer Part Number: LK204-25-USB-WB
• Description: LCD Character Display Modules Blue Background White Text
• Manufacturer: Matrix Orbital
• Series: LK204-25r

Specifications of LK204-25-USB-WB

• Character Count X Line: 20 x 4
• Module Size (w X H X T): 98 mm x 60 mm x 27.5 mm
• Fluid Type: STN
• Voltage Rating: 5 V
• Operating Temperature Range: 0 C to + 50 C
• Display Mode: Transmissive
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

RS422 Model
RS422 Header
The six pin RS422 interface header of the LVK204-25-422 offers power and ground connections as well
as two differential pair communication lines. Regular and inverted lines are provided for both receive
and transmit signals. Power is supplied locally to the regular or –V variants while the –VPT can receive
power over a distance. The Tyco 282834-6 style header is most suited to a simple wire connection.
The Alternate Power Connector provides the ability to power the LVK204-25-422 using a second cable.
This is particularly useful for the regular or -V modules that are to be powered locally. The Tyco 171825-
4 style header will fit a floppy power cable from a PC power supply for a simple bench power solution.
17
Alternate Power Connector
Figure 17: Alternate Power Connector
Figure 16: RS422 Header
Table 12: Alternate Power Pinout
Table 11: RS422 Pinout
Pin
Pin
1
2
3
4
5
6
1
2
3
4
Inv Rx (Z)
Inv Tx (B)
Function
Function
Rx (Y)
Tx (A)
Gnd
Gnd
Gnd
Vcc
Vcc
NC