J3Ka Technical Data; Supply; Inputs; Outputs - BlueCom PLTS Manual

System Description Party Line Telephone System PLTS

5 J3KA Technical data

5.1 Supply

Input voltage range
"-48V"
"-24V"
Maximum input voltage ripple
Supply current

5.2 Inputs

Impedance
Return loss, 300...3400 Hz
Maximum input level

5.3 Outputs

Impedance
Return loss, 300...3400 Hz
Maximum output level
48 V supply
24 V supply

5.4 Amplifier

Gain
Ranges
low
medium
high
Frequency response, 300...3400 Hz,
reference 800 Hz, 0 dB gain, +16 dBm out
Harmonic distortion
400 Hz, 0 dB gain +16 dBm out
Output noise
300...3400 Hz, 0 dB gain
Crosstalk, 300...3400 Hz, 0 dB gain, 0 dBm output
Input 1 to Output 1
Input 2 to Output 2
Input 3 to Output 3
Input 4 to Output 4
BCPT1010.SD.E2.doc, Version 1.0
-40..-60 V
-20..-30 V
2 V
 80 mA
600 , balanced
 14 dB
+16 dBm
600 , balanced
 14 dB
 +16 dBm
 +10 dBm
Continuously adjustable by means
of multiturn potentiometers
 6 dB
 18 dB
 30 dB
± 1 dB
 0.5 %
 -70 dBm
-65 dB
-65 dB
-65 dB
-65 dB
BlueCom AG, 1.3.1999
pp
12