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Line Interface

FT 634a, FT 634aC, FT 634aCL

Summary of Contents for FT 634a

Page 1: ...Line Interface FT 634a FT 634aC FT 634aCL ...

Page 2: ...t 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 6...

Page 3: ...er Zr only for 2 wire Connector radio device AF in output and PTT out Pilot tone decoder 3300 Hz or DC decoder Serial interface RS232 to adjust and program All levels adjustable with RS232 All AF in outputs galvanically separated transformer Version FT634aC The version FT634aC additionally offers the possibility to switch channels remotely The information for switching channels remotely are transm...

Page 4: ...one of the switching outputs can be programmed as error indicator Transmitter control The transmitter control is activated as soon as the AC line receives and decodes the pilot tone Then the PTT output is switched by a potential free relay The PTT output can also be controlled by DC or AF decoding register 053 1 Functions of the LEDs The green LED is on when the pilot tone is decoded by the AC lin...

Page 5: ... 5a Major 4a Example 1 2 or 4 wire remote control via private lines 2 oder 4 FT634aC with channel switching or FT634a without channel switching FT634aCL with line monitoring Major 4a 5a or 6 Example 3 2 or 4 wire remote control via leased lines AC or DC remote control LIM AC only 2 wire FT634aC Examples Depending on the setup of the radio installation different versions of the FT634a can be used T...

Page 6: ...09 Kompetent für Elektroniksysteme Example 4 Operation terminal Major 6 via 2 wire to the multi channel radio set with option line monitoring 2 Major 6 4a or 5a FT634aCL with line monitoring FT634aCL with line monitoring ...

Page 7: ...tions of the different jumpers are printed directly onto the circuit board 2D 2 wire 4D 4 wire Zr complex impedance 600 real impedance 600 Ohm AC remote control by AC voltage DC remote control by DC voltage jumper Jumper setting normal 2D Zr AC ex factory Jumper setting 2D 600 Ohm DC Jumper setting 2D Zr DC Jumper setting 2D 600 Ohm AC Jumper setting 4D 600 Ohm DC Jumper setting 4D 600 Ohm AC ...

Page 8: ... 8 ft634a 23 06 2009 Kompetent für Elektroniksysteme Block diagram FT634a C CL ...

Page 9: ... 9 ft634a 23 06 2009 Kompetent für Elektroniksysteme Block diagram DSP ...

Page 10: ... in output 4 GND in output 3 RS232 RxD input 2 RS232 TxD output 1 LED green transmitter relay on because pilot tone decoded or DC decoded or AF decoded blinking see description LED yellow pilot tone on or DC on and AF connected to line blinking see description I O Line 2D 4D out 1 free 2 I O GND 3 free 4 I O Line 2D 4D in 5 6 OUT Line 4D out 7 I O I O 13 Pull up 5V 8 I O I O 4 o C 9 IN Line 4D in ...

Page 11: ...O I O 11 Pull up 5V I O Line 2D 4D out 7 I O I O 12 Pull up 5V I O Line 2D 4D in 8 I O I O 13 Pull up 5V OUT bus AF RADIO BUS 9 I O I O 14 Pull up 5V IN bus AF BUS LINE 10 I O I O 15 Pull up 5V IN radio AF in 11 I O I O 0 o C IN radio AF in 12 I O I O 1 o C 13 I O I O 2 o C 14 I O I O 3 o C 15 I O I O 4 o C OUT radio AF out 16 I O I O 5 o C OUT radio AF out 17 I O I O 6 o C I O I O 7 o C 18 IN plu...

Page 12: ...634a Software FT634aC Version V1 00 SW date 17 10 06 Rxxx read register xxx Pxxx yyyyyyyy program register xxx with yyyyyyyy A adjust potentiometer Tx TX relay on off 1 0 Kxx switch channel xx 00 99 Ixxxx tone generator on with xxxxHz xxxxx transmit tone sequence xxxxx Q reset software X end monitor After hitting the key A the monitor prompts you for adjustment with the following screen Which pote...

Page 13: ...th required level at line input at 3400Hz Adjust Line to 300mV at internal reference value Initial value 057 min 000 max 255 level 000 mV required value 300 mV Keys 1 10 1 _ 10 measuring only a self adjustment p programming x cancel The screen for potentiometer 3 Adjustment potentiometer 3 Feed with required level at line input at 1000Hz Adjustment pot 1 and 2 reference value Line 300mV Adjustment...

Page 14: ... wire high amplification of line 40 15dBm 3 digit priority 0 none 1 RX before TX 2 TX before RX 3 first come first served 4 digit AF directions without RX without TX 5 digit AF directions with RX without TX 6 digit AF directions without RX with TX 7 digit AF directions with RX with TX 0 RADIO LINE off LINE RADIO off 1 RADIO LINE on LINE RADIO off 2 RADIO LINE off LINE RADIO on 3 RADIO LINE on LINE...

Page 15: ...1s Hz 6 digit pilot tone filter frequency 0 no filter 1 3300Hz 7 digit line filter 0 off 1 on bandpass 300 3400Hz 080 01810000 decoder reference 1 1 3 digit nnn 5ms max tone duration 1st tone 4 5 digit nn 5ms min tone duration all tones 081 01800000 decoder reference 2 1 3 digit nnn 5ms max tone duration from 2nd tone on 5 digit tone calling system 0 ZVEI 1 CCIR 2 ZVEI2 3 EEA 082 07707000 encoder ...

Page 16: ...0 Hz 1124 Hz 2 1160 Hz 1197 Hz 1160 Hz 1197 Hz 3 1270 Hz 1275 Hz 1270 Hz 1275 Hz 4 1400 Hz 1358 Hz 1400 Hz 1358 Hz 5 1530 Hz 1446 Hz 1530 Hz 1446 Hz 6 1670 Hz 1540 Hz 1670 Hz 1540 Hz 7 1830 Hz 1640 Hz 1830 Hz 1640 Hz 8 2000 Hz 1747 Hz 2000 Hz 1747 Hz 9 2200 Hz 1860 Hz 2200 Hz 1860 Hz A 2800 Hz 2400 Hz 886 Hz 1055 Hz B 810 Hz 930 Hz 810 Hz 930 Hz C 970 Hz 2247 Hz 740 Hz 2247 Hz D 886 Hz 991 Hz 680 ...

Page 17: ...has not been turned off and all capacitors have been discharged Electrolytic capacitors can be still charged for a long time after turning off When using components modules devices or circuits and equipment the threshold values of voltage current and power consumption specified in the technical data must absolutely be complied to Exceeding these threshold values even if only briefly can lead to si...

Page 18: ...ccording to German TBR 15 2D 2 wire 4D 4 wire Zr Complex impedance according to German TBR 600 Real impedance 600 Ohm according to German TBR AC Remote control via AC voltage DC Remote control via DC voltage IN Input OUT Output I O In and output SDA I2C Bus Data SCL I2C Bus Clock TXD RS232 Transmitter RXD RS232 Receiver PTT Push To Talk DSP Digital Signal Processor FT FunkTronic ...

Page 19: ...6 2009 Kompetent für Elektroniksysteme Revision remarks Modifications made are only mentioned in note form in this section For detailed information please read the corresponding chapters 23 06 09 Revision remark added ...

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