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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
Table 6-22. Commissioning and Maintenance Terminal Panel Lamps
Lamp
IN USE CH--1
IN USE CH--2
PILOT VCE NOT AVAIL
LOG OFF
CABIN VCE NOT AVAIL
MCS FAIL
NON-MCS FAIL
NO SAT LINK
HGA FAIL
Honeywell International Inc. Do not copy without express permission of Honeywell.
MCS--4200/7200 Multi--Channel SATCOM System
(SDU pin TPH1) This lamp lights to show channel 1 is in use.
(SDU pin TPK1) This lamp lights to show channel 2 is in use.
(SDU pin TP3A) This lamp lights to show no additional voice channels can be
established. This can be because no resources are available, or all available
resources being allocated to existing calls.
(SDU pin TPC3) This lamp lights to show no packet mode data service
capability exists at any data rate; system not logged on.
(SDU pin TPB3) This lamp lights to show no additional channels can be
established for analog or digital cabin voice, or circuit--mode data. This can be
because no resources are available, or all available resources being allocated
to existing calls.
(SDU pin TPG1) This lamp lights to show a total loss of all SATCOM voice and
data services, and at least one cause can be attributable to the MCS system
LRUs themselves. Replacement of the appropriate LRU (SDU, HPA) is
necessary to restore partial or complete service. It is possible for this indicator
and the MCS inoperable indicator (NON-MCS FAIL) to be active
simultaneously, indicating failure in both the MCS system LRUs and nonsystem
LRUs.
(SDU pin TPE3) This lamp lights to show total loss of all SATCOM voice and
data services, and at least one cause is attributable to the non-MCS system
LRUs, or interfaces to those LRUs. Replacement of the appropriate non MCS
LRU(s), or correction of the interface failure is necessary to restore partial or
complete service. It is possible for this indicator and the SATCOM fail indicator
(MCS FAIL) to be active simultaneously, indicating failure in both the MCS
system LRUs and the nonsystem LRUs or interfaces.
(SDU pin TPJ1) This lamp lights to show no SATCOM voice or data services
are available because of the AES not being successfully logged-on, and the
cause is definitely not due to reported failures (MCS or non-MCS). If there is a
MCS or non-MCS failure, the NO SAT LINK lamp will not light.
(SDU pin TPD3) This lamp lights to show packet-mode data service capability
exists, but only at the lowest channel rates (600 and 1200 bps). This indicator
is assumed to only be present in high gain antennas installations that have a
low gain antenna backup system. The lamp indicates an HGA failure due to the
reduction from normal high speed capability.
Definition
23- -20- -35
Page 6--122
15 Jul 2006
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