User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion® HSD-440 Mark 2 Terminal
23-15-30 3-15
3 JUN 10
(c) CMU Interface
Data rates, voltage thresholds, and electrical inter
face specifications are per
ARINC Specification 429. (741 p2-7 p4.7.2). The ARINC 600 wiring
interconnections for the HSD-440 Mark 2 Terminal and each CMU are shown in
Table 3-12.
Table 3-12 CMU Strapping
Pin Name To
TP1A CMU 1 Input A CMU 1 TP1A
TP1B CMU 1 Input B CMU 1 TP1B
TP1C CMU 1/2 Output A CMU 1/2 MP2C
TP1D CMU 1/2 Output B CMU 1/2 MP2D
MP1K CMU 2 Input A CMU 2 TP1A
MP2K CMU 2 Input B CMU 2 TP1B
You can set the bus speed either low or high. Both the transmit and receive ports
of th
e HSD-440 Mark 2 Terminal ARINC 429 CMU ports operate together at
either low speed or high speed. Both CMUs therefore work at either low speed
or high speed, but not at different speeds. You can select the speed by setting
a flag in the ORT parameter CMU INPUT SPEED SELECT and CMU OUTPUT
SPEED SELECT instead of setting a program pin on the HSD-440 Mark 2
Terminal A600 connector (there are no pins available). If information is not
available from the ORT, the bus speed default is low.
(d) MCDU Interface
Table 3-13 shows the strapping for the MCDU.
Table 3-13 MCDU Strapping
Pin Name
TP2C MCDU 3 input A
TP2D MCDU 3 input B
MP3E MCDU 2 input A
MP3F MCDU 2 input B
MP7G MCDU 1 input A
MP7H MCDU 1 input B
MP7J MCDU 1/2/3 output A
MP7K MCDU 1/2/3 output B
C. Connection Details
"Connection Details" on page 3-19 provides all top, middle, and bottom plug connection
details for all installations.