QSG-8476-Repeater_A
HOLT INTEGRATED CIRCUITS
10/25/18
4
Switch Functions
SWITCH
NAME
DEFAULT
DESCRIPTION
SW1
RXSPEED
TXSPEED
PARITY
BIT32N
SDE
SD9
SD10
nMR
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
Receive ARINC 429 speed ON = High, OFF = Low
Transmit ARINC 429 speed ON = High, OFF = Low
HI-8476 Parity Checking ON = Enable, OFF = Disable
Use HI-8476 Parity bit to disable HI-8470 transmission
SD bit filtering enable ON = Enabled
SD9 filtering enable ON = Enabled
SD10 filtering enable ON = Enabled
Master Reset ON = Reset
SW2
LABEL 0:7
All OFF
ARINC 429 label bits 0:7.
ON = ‘1’ , OFF = ‘0’
SW3
FILT 0:7
All OFF
Sets ARINC 429 message filter bits.
ON = ‘1’ , OFF = ‘0’
Connector Functions
CONNECTOR
NAME
PIN
DESCRIPTION
J1
GND
TXB
TXA
1
2
3
GND
TXB ARINC negative output
TXA ARINC positive output
J2
GND
RXA
RXB
1
2
3
GND
RXA ARINC negative input
RXB ARINC positive input
J5
GND
+28V
1
2
GND
+28V, 28VDC converter supply (link J6)
