Honeywell KHF 1050 System Installation Manual page 111

5.C.(7)(e) MC-850 MCDU Connectors
For MC-850 MCDU connection information, refer to MC-850 installation
documentation pertinent to each specific application.
5.C.(7)(f) RM-855 RMU Connector
Figure 2013 - RM-855 RMU Connector (144J1) Pin Configuration
PIN FUNCTION
BB STRAP
U STRAP COMMON
KK (-) 429 RX3
JJ (+) 429 RX3
PP (-) 429 RX4
NN (+) 429 RX4
HH (-) 429 RX1
EE (+) 429 RX1
b Bit 0
c Bit 1
d Parity
z NUMBER OF DAU OPEN - 2 DAU, CAN USE ARINC RX3 FOR HF GROUND
Table 2005 - RM-855 RMU Connector (144J1) Pin Definitions
Revison 2
N
KHF 1050 SYSTEM INSTALLATION MANUAL
RM-855 CONNECTOR PIN DEFINITIONS
OPEN - DUAL HF INSTALLATION
GROUND - SINGLE HF INSTALLATION
BB, b, c, d, z - AS REQUIRED
HF1 429 TX - DUAL SYSTEM ONLY
HF2 429 TX - DUAL SYSTEM ONLY
RMU1 - HF 429 RXA, RMU2 - HF 429 RXB
GROUND TO U FOR LEFT SIDE
GROUND TO U FOR LEFT OR RIGHT SIDE
GROUND TO U FOR LEFT SIDE
GROUND - 3 DAU, CAN NOT USE ARINC RX3 FOR HF
CONNECT TO
23-10-09
Page 2029
Apr/2006