REMOTE FFCS OPERATION
Provision is made in some VIS versions for temporary installation and use of a
FFCS outside the vehicle, for example a S-787 SICPS platform (see figure 2-20).
Refer to the procedures in paragraphs 2.11.1. and 2.11.2. for installation and
removal of this particular version.
For clarity purposes the vehicle used for remote
FFCS operation contains four internal FFCSs,
designated with crewstation settings of 1, 2, 3
and 4, and one remote FFCS, designated with a
crewstation setting of 5.
When operating the VIS in a vehicle that utilizes a remote FFCS two approaches
can be utilized:
a. Configure the vehicle with the remote FFCS installed, then remove it
from the ring configuration and proceed with normal operations. To utilize this
approach do the following procedures:
When disconnecting or connecting cables for
removing and replacing remote FFCSs the MCS
should be turned off.
1. Install the remote FFCS (refer to para. 2.11.1).
2. Do the System Configuration procedures (refer to
3. Program all 5 FFCSs with the desired radio
4. Remove the remote FFCS (refer to para. 2.11.2).
5. Turn the MCS back on for normal VIS operation
(SYSTEM switch set on PROG 1 and PROGRAM switch
set on SYSTEM).
When BIT is initiated, upon powering-up of the MCS, the alphanumeric display
will show in order TEST, FAIL, 5u. This results because the Power-On Poll sees
FFCSs 1, 2, 3, and 4, as connected, but is being compared to the System
Configuration memory which shows FFCSs 1, 2, 3, 4, and 5 as connected. This
condition does not effect VIS operation and depressing the CHANGE button will
remove this error message (but not the condition) from the display.
b. Configure, the vehicle with only the internal FFCSs, then reconfigure
every time a remote FFCS is installed then removed. To utilize this approach
do the following procedures:
1. Do the System Configuration procedures (refer to
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