EQUIPMENT DATA

TM 11-7440-232-12/NAVELEX 0967-LP-275-5010

1-11. EQUIPMENT DATA

Data Rates .....................................................................

1200 or 2400 bits per second.

DATA INPUT

Input Line .......................................................................

Single wire ground return.

Format ...........................................................................

NRZ serial-by-bit binary data.

Level Options .................................................................

See Data Level Options tabulation

Input Sensibility..............................................................

Voltage transients of up to 0.8V peak-to-peak

do not affect operation.

Input Impedance ............................................................

Greater than 5000 ohm, shunted by not more

than 200 picofarads.

Rise/Fall Times ..............................................................

Up to 200 microseconds acceptable.

DATA OUTPUT

Output Line ....................................................................

Single wire ground return.

Format ...........................................................................

NRZ serial-by-bit binary data.

Level Options .................................................................

-6V for "1" or mark, +6V for "0" or space. Can

be reversed by strapping options.

Output Impedance..........................................................

Less than 100 ohms at load currents up to 10

milliamperes.

Load Impedance ............................................................

600 ohms minimum shunted by not more than

2500 picofarads.

Rise/Fall Times ..............................................................

Between 1 and 2 microseconds, with

provisions for adding capacitor to increase

time to 10% of bit length.

TRANSMITTER OUTPUT

Signal.............................................................................

Synchronous fm.

Frequency ......................................................................

1200 to 2400 Hz nominal.

Level ..............................................................................

-10 to +6 dbm, adjustable.

Impedance .....................................................................

300, 600 or 900 ohms balanced.

RECEIVER INPUT

Signal.............................................................................

Synchronous or nonsynchronous frequency modulation

Frequency ......................................................................

1200 to 2400 Hz nominal.

Level ..............................................................................

Adjustable to accept level between -30 and 0

dbm. Short term variations 10 db above and 20

db below the set level are acceptable.

Impedance .....................................................................

300, 600, or 900 ohms balanced.

1-17