EMS Technologies Canada Ltd. HSD-MK2 User Manual

eNfusion® HSD-440 Mark 2 Terminal

23-15-30

 •

IRS#1 A   TP4J

 •

IRS#1 B TP4K

 •

IRS#2 A  TP5C*

 •

IRS#2 B  TP5E*

You can configure IRS#2 as a secondary IRS bus, or an input bus for the 
AES ID.

(b) Antenna Interface

The ARINC 741 antenna subsystem BSU is connected to the HSD-440 Mark 2 
Terminal as specified in Table 3-11.

HPA MUTE A 

Top/Port BSU-G 

TP3A

STBD BSU-G

TP3C

HPA MUTE B

Top/Port BSU-H

TP3B 

STBD BSU-H

TP3D

BSU BITE A

BSU-W(G)*

Port BSU-W 

TP2A

STBD BSU-W

TP2C

BSU BITE B

BSU-X(H)

Port BSU-X 

TP2B

STBD BSU-X

TP2D

Multi-Control A

TP3E

BSU-T(A)

Multi-Control B

TP3F

BSU-U(B)

*Letters in (brackets) represent EMS Aviation AMT-50 BSU pin designations

Top/Port (T/P):

Refers to Mechanical (fin-mount) HGA Subsystem

Port:

Refers to Phased Array (Fuselage-mount) or Port side of Dual (side) 
Conformal-mount, HGA subsystem

Starboard (STBD): 

Refers to starboard side of Dual (side) Conformal-mount HGA subsystem

NOTE: 

If a third MCDU is installed, the HSD-440 cannot use the side mount 
antennas because the input is allocated to either the third MCDU or the 
starboard BSU Bite.