Matrix Orbital EGLK19264A-7T - Manual (Page 7)

4
Features
Communication/Power Connector (ELK204-7T)
The ELK Series comes with a simple four pin TE
282834-4 style terminal block to fulfill both
communication and power needs. Voltage is
applied through pins one and four while pins two
and three are reserved for serial or I
2 C transmission.
This versatile header can be connected to a variety
of cables for a simple interface to any host.
Figure 5: Com/Power
Connector
Table 1: Com/Power Pinout
Pin Function
1 Gnd
2 Tx (SDA)
3 Rx (SCL)
4 Vcc
Extended Communication/Power Connector (EGLK19264A-7T)
The EGLK Series comes with a simple six pin
TE 282834-6 style terminal block to fulfill both
communication and power needs. Voltage is
applied through pins one and four while pins
two and three are reserved for serial or I
2 C
transmission. Pins five and six can be used for
optional hardware flow control using a serial
protocol only.
Figure 6: Ext C/P Connector
Table 2: E C/P Pinout
Pin Function
1 RTS
2 CTS
3 Gnd
4 Tx (SDA)
5 Rx (SCL)
6 Vcc
LED Indicators
The Enclosure Series has 6 General Purpose
Outputs which control 3 bi-colour LEDs. Red,
green, and orange-yellow colours can be
created using these software controlled GPOs.
Odd numbered GPOs control red while even
numbers switch the green aspects of the LEDs,
as shown in the table to the right.
Figure 7: LED Location
Table 3: LED Output
Colour GPO
O
GPO
E
Yellow 0 0
Green 0 1
Red 1 0
Off 1 1
Keypad Input
The Enclosure Series includes a 7 key,
matrix style, embedded keypad and may
be configured to allow key presses to be
automatically transmitted or polled. The
keypad can also be configured for
typematic or auto-repeating key presses.
The keypad is scanned only when pressed
to reduce electrical noise and decrease
latency to ensure key input is received
quickly and correctly every time.
Figure 8: Key Down Values Figure 9: Key Up Values
Manual Override
The Manual Override is
provided to allow the Enclosure
Series to be temporarily reset
to factory defaults. 1. Disconnect power from your display.
2. Hold down the bottom left button.
3. Reconnect power and wait for the start
screen before releasing the button.
4. Set and save all pertinent settings.
Parameter Value
Backlight 255
Contrast 128
Baud Rate 19200
Table 4: Manual
Override Settings