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 TM 11-5895-1123-34
Table 1-1. Equipment Complement-Continued
Qty
Nomenclature
Common name/unit No
Manual number
Grp
Line Isolation Equipment consisting of:
3
Isolator, Telegraph Line CU-1819/T
TLG line isolator
TO-31WA-2T-102
1
Power Supply CMT-0696
PWR SPLY CMT-0696
Stelma LIU-PS-6
1
Patch Panel, TTY/Low Level COMM
TTY/LL COMM patch panel
SM-A-935861
Grp
Keyer/Converter consisting of:
4 Keyer, Frequency Shift TK-201F
FSK
Stelma 90416001-100
4 Converter, Frequency Shift TG-301F
FREQ shift CONV
Stelma 90415002-100
16
Filter, Bridge SM-A-935292
Bridge filter
Stelma 82520020-201 thru
216.
1
Suppressor, Echo ES-3B SM-A-935237
Echo suppressor
1
Patch Panel, COMMIVF SM-A-935851
COMM/VF patch panel
Grp
Line Conditioning Equipment consisting of:
48 Vdc Supply SM-F-935778
48-vdc supply
Converter, 20-Hz Ringdown CV-3250/
20-Hz ringdown CONV
TM 11-5805-676-14&P
FTC
Board, Carrier MT-4722
Carrier board
TM 11-5805-672-14&P
Attenuator, Line Signal CV- 1449/FTC
Line SIG ATTEN
TM 11-5805-672-14&P
Amplifier, Line AM-6745/FTC
Line amplifier
TM 11-5805-675-14&P
Terminating Set TA-9451FTC
Terminating set
TM 11-5805-668-14&P
Signal Unit, FREQ TA-941/FTC
FREQ SIG unit TA-941/FTC
TM 11-5805-667-14&P
Signal Unit, FREQ TA-942/FTC
FREQ SIG unit TA-942
TM 11-5805-667-14&P
Signaling Supply TA-943/FTC
SIG SPLY TA-943/FTC
TM 11-5805-667-14&P
Signaling Supply TA-944/FTC
SIG SPLY TA-944/FTC
TM 11-5805-667-14&P
1
Patch Panel, COMM/TTY/FSK
COMM/TTY/FSK patch panel
SM-A-935888
1
20-Hz Ringing Supply Assembly
20-Hz ring generator
SM-F-935784
Table 1-2. Tabulated Data
PRIMARY POWER INTERFACE:
Voltage
120 VAC + 10% single phase
Frequency
50 to 60 Hz 5%
VF INTERFACE:
600 ohm 10% over a frequency range of 300 to 3400 Hz.
Longitudinal Balance
Greater than 40 dB over a frequency range of 300 to 3400 Hz.
Return Loss
Minimum of 23 dB over the frequency range of 300 to 3400 Hz against a 600 ohm
resistive load.
Frequency Response
The amplitude frequency response shall be within the following limits relative to a 1020
Hz 5 Hz test tone.
Frequency Band
Amplitude Range
Below 180 Hz
Greater than 0 dB
180-300 Hz
+4 to -1.5 dB
300-3000 Hz
+ 1.5 dB
3000-3400 Hz
+4 to -1.5 dB
3400-4600
Greater than 3 dB
Above 4600
Greater than 40 dB
Envelope Delay Distortion
400 microseconds maximum over the 500 to 3000-Hz band with bypassed line conditioning
and echo suppressors.
175 microseconds maximum over the 1000 to 2500-Hz band with bypassed line
conditioning and echo suppressors.
560 microseconds over the 500 to 3400-Hz when the line amplifiers are added to
the bypassed situation.
Harmonic Distortion
Single harmonic product produced by any single 0 dBm 0 test tone within the band of 300 to
3400 Hz shall be at least 37 dB below reference measuring from the junction box input
to the TD- 1192 output with a single line amplifier.
Idle Noise
Not greater than 30 dB measured overall utilizing line amplifiers in full duplex.
Crosstalk
Isolation on adjacent channels 65 dB minimum overall when a 0 dBm 0 test tone at 1020
+ 5 Hz is inserted with all other channels terminated in 600 ohms 10%.
HIGH LEVEL TELETYPE INTERFACE:
Voltage Levels
+60 volt polar or 130 volt to neutral
1-4
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