Installation
Becker Avionics
Connector Pin Assignments
30
RCU6512
DV17551.03 Issue 03 June 2020
Discrete In-/Outputs
Discrete inputs characteristics:
Input type:
asymmetrical, DC coupled
Closed contact to GND:
≤ 100
Ω
Open contact to GND:
≥
100 k
Ω
Resistance activation:
Active state: closed contact to GND
Voltage activation:
Active state: < 3.5 V
Inactive state: > 4.5 V
The input must withstand connection of external relay (R = 200
Ω) to power supply line.
Discrete outputs characteristics:
Output type:
asymmetrical, “open drain”
Active state - output line closed to GND:
I
OUT
_C ≥
100 mA, U
OUT
_C ≤ 0.3
V
Inactive state - output line open:
I
OUT
_O ≤ 100
µA, U
OUT
_O ≤ 30
V
Panel Illumination
•
The RCU6512 controller push-buttons and display can be illuminated.
•
The illumination can be configured in the configuration setup.
o
Configuration through front panel or externally through P1-6/P1-8.
For external configuration:
•
Connect P1-6 to system ground and P1-8 to dimming voltage bus.
Pin No. Pin Name
I/O
Function
P1-6
ILL_LO
IN
Illumination low input
P1-8
ILL_HI
IN
Illumination high input
External Power ON (/EXT_ON)
It is possible to power on the system with the "External Power ON" line.
•
Active when contact to GND.
•
This can be done in installations with a central avionics power switch or to power on
RT6512.
Pin No. Pin Name
I/O
Function
P1-13
/EXT_ON
IN/OUT
External Power ON input/output
ACTIVE state - closed contact to GND
External Exchange (/EXCH_CH)
With the "External Exchange" input it is possible to change the active and preset frequency.
•
The RCU6512 has a discrete input /EXCH_CH_IN it accepts an external contact or open
collector to ground.
Pin No. Pin Name
I/O
Function
P1-15
/EXCH_CH
IN
External "Exchange" key
ACTIVE state - closed contact to GND
