DATA IN and TMG IN signals

TM 11-5820-695-35

signal fails, U2B times out and resets and U2B-5 applies

(8) When DATA IN and TMG IN signals

logic 0 at reset input U2A-3. U2A is then reset and held

(from U4) are active, U2A and U2B are held in the set

in reset as long as U2B is in reset. Logic 1 from U2A-4

state. The signal at U5B-5 is then logic 0 and U5B-6

then produces the same changes as described above

applies logic 1 at U8C-8, so U8C-10 applies logic 0 at

for failure of DATA IN. If a known failure of the DATA

U8A-2. At the same time U2A-4 applies logic 0 at U8A-

IN signal at the DGM exists (but TMG IN signal is still

3. With logic 0 at both inputs, the signal at U8C-1 is

active), a constant logic 1 is sent on the DATA IN line.

logic 1 and status indicator CR4 is off (normal). The

U2A then times out and U5B has logic 1 at both inputs,

EQP FAIL signal is then logic 0 (normal) and signal

so U5B-6 applies logic 0 at U8C-8. Since TMG IN is

DGMDEF (U8C-10) is logic 0 (normal).

For this

active, U2B is still applying logic 0 at U8C-9 so U8C-10

condition signal DATA IN (U2B-10) is also active

U changes to logic 1. Logic 0 at U8A-1 then turns on

(normal). If signal DATA IN fails, U2A times out and

indicator CR4 and status signals DGMDEF and EQP

resets and U2A-4 applies logic 1 at U8A-3. Logic 0 at

FAIL are both logic (fault).

U8A-1 then causes status indicator CR4 to light and

signal EQP FAIL changes to logic 1 (fault). If TMG IN

Change 6 2-16.13