Matrix Orbital GLK12232-25-FGW - Manual (Page 12)

Table 1: Hardware Information
1 Power / Data Connector 4 Protocol Select Jumpers
2 Keypad connector 5 Filesystem Lock Jumper
3 GPO 6 Manual Override
2.1 Power/Data Connector
The Power/Data Connector provides a standard connector for powering the display module. The GLK12232-
25 requires five volts for the standard display module. Extended voltage options are available as an add-on,
please contact a sales representative for additional information. The voltage is applied through pins one and
four of the four pin Power/Data connector. Pins two and three are reserved for serial transmission, using
either the RS-232/TTL or the I
2 C protocol, depending on what has been selected by the Protocol Select
Jumpers.
Pin 1 PWR (See table 2)
Pin 2 Rx \ SCL (I 2 C clock)
Pin 3 Tx \ SDA (I 2 C data)
Pin 4 GND
Figure 12: Power Connector and Pin-out
Table 2: Power Requirements
Supply Voltage +5Vdc ±0.25V
Supply Current 46 mA typical
Supply Backlight Current 84 mA typical
Matrix Orbital GLK12232-25 7