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  TM 11-7440-232-12/NAVELEX 0967-LP-275-5010
TRANSMITTER CLOCK OUTPUT
Waveform ......................................................................
Square wave.
Frequency ......................................................................
Same as data rate.
Level ..............................................................................
±6 volts, balanced to within 10%.
Output Impedance, Load Impedance, and
Rise/Fall Times ..............................................................
Same as Data output.
Phasing ..........................................................................
Strapping options permit either positive or
negative-going edges to be coincident with
data transitions.
Frequency Stability ........................................................
0.01%.
RECEIVER CLOCK OUTPUT
Waveform ......................................................................
Square wave.
Frequency ......................................................................
Same as data rate.
Level ..............................................................................
+6 volts, balanced to within 10%.
Output and Load Impedances ........................................
Same as data output.
Rise Time ......................................................................
Between 1 and 4 microseconds, with
provisions for adding capacitor to increase
time to 10% of bit length.
Phasing ..........................................................................
Strapping options permit either positive or
negative-going edges to be coincident with
data transitions.
Frequency Stability ........................................................
Synchronized to transmitter clock.
Carrier On-Off Control:
ON
OFF
Standard ........................................................................
Ground
Open
EIA Circuit CA ................................................................
+3 volts
-3 volts
(optional) .................................................................
(min)
(min)
Interlock Circuit ..............................................................
NORMAL
INOPERABLE
Standard ........................................................................
Ground
Open circuit
EIA Circuit CC................................................................
+ 3 volts
-3 volts
(optional) .................................................................
(min)
(min)
CARRIER ALARM OUTPUT
Level ..............................................................................
+6V normal and OV alarm.
Output Impedance, Load Impedance,
and Rise Time................................................................
Same as data output.
ERROR ALARM OUTPUT
Indication .......................................................................
Indicator lamp lights for 40 milliseconds
Alarm Signal ..................................................................
One 15-microsecond positive or negative going
pulse for each error, or a 40-millisecond pulse.
1-18
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