Honeywell Mark III User Manual
Page 8

HONEYWELL Aerospace Electronic Systems
Page 8
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Figure 1 Mark III CMU Front Panel
ARINC 607 defines the Aircraft Personality Module (APM) which contains all aircraft and system
configuration information. The APM is external to the MARK III CMU and is a permanent fixture in the
aircraft. Only one APM is required per MARK III CMU installation (one APM for each MARK III CMU
mounting tray). The same APM part number is used on all aircraft in the fleet.
2.2 System Interfaces
The Mark III CMU supports an extensive set of interfaces. Many of these interfaces are specifically defined
by ARINC 758. There are also a number of spare ARINC 429 ports available for additional devices as needed
by the user. The Mark III CMU supports all of today’s ACARS interfaces used on today’s aircraft, with
extensive capability for future growth.
Table 1 Mark III CMU Interfaces
Device
ARINC
Specificati
on
Interface
#
Baseline /
Growth
VHF Radio
716
Audio
1
Baseline
VDR: Mode 0
Mode A
Mode 2
750
Audio
High speed ARINC 429
High speed ARINC 429
1
3
3
Baseline
Baseline
Option
Satellite Data Unit (SDU)
741
761
High speed ARINC 429
High speed ARINC 429
2
2 (note 1)
Baseline
Growth
HF Data Radio (HFDR)
753
Low speed ARINC 429
2
Baseline
UHF
---
Audio
1
Growth
Mode S Transponder
718A
High speed ARINC 429
2 (note 7)
Baseline
Gatelink
751
undefined
High speed ARINC 429
Ethernet 10BaseT
1
note 2
Growth
Growth
MCDU/MIDU
739
High speed ARINC 429
3
Baseline
DCDU
undefined
High speed ARINC 429
1/2 (note 5)
Growth
CDU
----
RS-422
2
Baseline
Printer
740/744
744A
Low speed ARINC 429
Ethernet 10BaseT
1 (note 3)
note 2
Baseline (note 3)
Growth
FMC
702
702A
Low speed ARINC 429
High speed ARINC 429
2/3 (note 4)
2/3 (note 4)
Baseline
Growth
Performance Computer (PZ)
-----
RS-422
1
Growth
ACMS/DFDAU
619/429
Low speed ARINC 429
1
Baseline
CMC/CFDS/CFDIU
604/624
Low speed ARINC 429
1
Baseline
Cabin Terminal
---
Low speed ARINC 429
2
Baseline
Electronic Library (ELS)
---
High speed ARINC 429
1
Growth
Cockpit Voice Recorder
(CVR)
757
Low speed ARINC 429
1
Growth
GPSSU
743
High speed ARINC 429
1
Baseline
APM
607
---
1
Baseline
Dual CMU
758
High speed ARINC 429
1
note 6
Mil-Std-1553B
---
Mil-Std-1553B
1
Growth
DMT
---
RS-232
1
Baseline
DLT
---
RS-232
1
Baseline
Airborne Data Loader
615
High speed ARINC 429
1
Baseline
PCMCIA