- 2 - ft634a (23.06.2009)
Kompetent für Elektroniksysteme
- 3 - ft634a (23.06.2009)
Kompetent für Elektroniksysteme
Content
Technical Data 2
General Features 3
Channel Switching 4
Option Line Monitoring 4
Transmitter Control 4
Functions of the LEDs 4
Examples 5
Jumper 7
Block Diagram FT634a (C, CL) 8
Block Diagram DSP 9
Pinout 10
Connecting Cable RS232 12
Service Program/Adjustment 12
Programming 14
Tone Chart 16
General Safety Instructions 17
Factory Returning of old equipment 17
Terms and Abbreviations 18
These instruction are valid from serial number: 3001/06 PCB Nr.: FT634a2
Seite
Technical Data
Voltage of operation +12V DC -30% +40%
Current demand ca. 200 mA
Fuse 1 A, self-resetting
Weight ca. 525 g
Dimensions W x H x D 104 x 44 x 175 mm
Frequency of pilot tone 3300 Hz
Pilot tone decoder +/- 0,8 % (+/- 26 Hz)
Response time < 20 ms
Release time < 40 ms
min. pilot tone level at measuring (monitor.)point 75 mV
Notchfilter pilot tone suppression > 50 dB
2- resp. 4-wire
Input level 2-wire -1,4 dBm nominally, 658 mV
Adjustment range 2-wire -23 dBm to +3 dBm, 55 mV to 1 V
Input level 4-wire -3,5 dBm nominally, 518 mV
Adjustment range 4-wire -25 dBm to +1 dBm, 44 mV to 869 mV
Input impedance 2-wire Zr or 600 Ohm, 4-wire 600 Ohm
Output level 2/4-wire -4,5 dBm, 461 mV at 600 Ohm (max. without limit)
Output level range 2/4-wire, 600 Ohm -30 dBm to -2 dBm, 25 mV to 615 mV
Output level range 2/4-wire, 200 Ohm -36 dBm to 8,5 dBm, 12 mV to 291 mV
Output impedance 2-wire Zr or 600 Ohm
Output impedance 4-wire 600 Ohm
Interface radio device resp. desk top control
Input level + 3 dBm nominally
Adjustment range - 24 to + 6 dBm
Input impedance 600 Ohm
Output level - 17 dBm ex factory setting
Adjustment range - 30 to + 5 dBm
Output impedance 600 Ohm
