Table 2-5. MCS Alphanumeric Error Messages, Two-Branch Configuration

TM-11-5830-263-20&P

Table 2-5. MCS Alphanumeric Error Messages, Two-Branch Configuration

MCS ALPHANUMERIC

ERROR DESCRIPTION

CORRECTIVE MEASURE

DISPLAY

"err2"

MCS cannot store radio access

1. Recycle power on MCS.

data in program memory.

2. If message still appears,

replace defective MCS.

One of the following:

MCS not receiving

1. Recycle power on MCS.

acknowledgment of signal from 2. If fault message appears,

"A u", "B u" or "Au, Bu"

MCS radio channels A and/or B.

replace defective MCS.

MCS not receiving

1. Recycle power on MCS.

"X u"

acknowledgment from single

2. If fault message appears,

Where X is the alphabetic

channel in RIT

replace defective RIT.

designation of a single radio

channel of a RIT interfacing two

radios

Single "X u", "C u, D u", or "E u, MCS not receiving

1. Recycle power on MCS.

F u"

acknowledgment of signal from

2. If error message appears,

FFCS "X" or indicated RIT.

refer to Figure 2-54.

One of Above Plus "Yc"

Where X is the numbered

address setting of the FFCS and

Y is either the numbered

address setting of another

FFCS or the alphabetic

designation of a radio interface.

"X c"

MCS previously displayed "X u"

1. Recycle power on MCS.

from FFCS "X" which now

2. If fault message appears,

Where X is the numbered

acknowledges the MCS signal.

replace defective FFCS "X".

address setting of the FFCS

Multiple "X u" messages

MCS not receiving

1. Recycle power on MCS.

acknowledgment signals from

2. If message still appears,

Where X is the numbered

FFCSs "X" and/or RITs.

perform multiple

address setting of the FFCSs

unconnected FFCSs/RITs

and/or radio channel letters

flowchart, figure 2-55.

2-63