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- 6 -

lim-ac (01.11.2006)

Kompetent für Elektroniksysteme

- 7 -

lim-ac (01.11.2006)

Kompetent für Elektroniksysteme

Programming Guide

Register  Function

00 

Vref for Squelch detection leveö (Factory default --> 0x0A = 280 mV)

01 

Vref for Squelch turn off level (Factory --> 0x06 = 140 mV)

02 

Number of consecutive slopes onf start of Squelch

 

A break of 3.6 ms without slope resets the counter

 

Fectory default --> 0x05 = 6 slopes without break longer than 3,6 ms is detected as 

 

Squelch

03 

Follow-up time for Squelch detection x 10 ms

 

Factory default --> 0x50 = 50 x 10 ms = 500 ms

04 

Locking time past PTT for Squelch detection x 10 ms

 

Factory default --> 0x10 = 10 x 10 ms = 100 ms

05 

TX-Mode  Low-Nibble 

-->  Pilotton bei TX 

1 = an, 0 = aus

 

 

 

  High-Nibble  -->  Relais bei TX 

 

 

 

   

 

0 = TX-Relais on for TX, RX-Relais on for RX

 

 

 

   

 

1 = TX-Relais always on, RX-Relais on for RX - default

 

 

 

   

 

2 = TX-Relais an bei TX, RX-Relais immer an

 

 

 

   

 

3 = TX-Relais immer an, RX-Relais immer an

 

Factory default --> 0x11 = Relais and pilot tone on for TX

Register description EEPROM LIM-AC

Connect the plug ST3 of the LIM-AC to the serial interface of the PC via 

adapter TTL/RS232

 (e.g. 

FunkTronic RS232AD1). Start a perminal emulation prgramm (e.g. Hyperterminal, minicom). The 

settings are 9600 baud, 8 data bits, no parity, one stopp bit and no flow control protocol. 
Hit the ENTER key and you will receive the following display message:

 

LIM_AC    (C) FunkTronic 02-03

 

Software:  `LIM_AC`   V1.1 vom 24.09.03

 

Pilotton:  3300 Hz

 

Rxx        Read EEPROM Register xx

 

Pxx yy     Program yy in EEPROM Register xx

 

Reset

If you enter R followed by a two digit register number and a final ENTER the setting of the correspon-

ding register will be displayed.

Programming a register works the same way but with the P button instead of R.

Enter P followed by the two digit register number followed by the register value and the final ENTER 

key.

Input of X resets the unit.

Summary of Contents for LIM-AC

Page 1: ...Line Interface Modul AC LIM AC...

Page 2: ...Terms and Shortcuts LIM AC Line Interface Modul AC Line 2 Wire Connection Radio 2 Way Radio Base Station Z R Reference Termination Impedance equivalent to a real 2 Wire Connection according to german...

Page 3: ...aC or FT633AC can be used All operator devices of the Major series e g Major 4a 5a 6 can be directly connected to the LIM AC Exception The Major BOS 4 and Major BOS 8 feature a busy line instead of th...

Page 4: ...Pin Layout Radio circuit ST1 GND 1 AF Output 2 Squelch Output 3 GND 4 12 V 5 PTT active low 6 AF Input 7 GND 8 Pin Layout Line ST2 nc 1 nc 2 a 3 b 4 2 wire connection nc not connected Operator Device...

Page 5: ...ed level according to TBR 15 Pilot tone without AF 10 dBm on line AF Input 500 mV 8 dBm on line AF plus pilot tone 6 dBm on line P2 AF RX Feed line 2 wire connection with required level and set AF Out...

Page 6: ...ais immer an 3 TX Relais immer an RX Relais immer an Factory default 0x11 Relais and pilot tone on for TX Register description EEPROM LIM AC Connect the plug ST3 of the LIM AC to the serial interface...

Page 7: ...ue 00 1 0 01 20 02 45 03 60 04 95 05 125 06 140 07 160 08 185 09 230 0A 280 0B 325 0C 370 0D 415 0E 465 0F no Squelch detection AF level for the registers 00 snd 01 Ordering Information Part No Descri...

Page 8: ...s 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 equip...

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