Ericsson 431 HotLine modifications for 70 cm
HAM equipment.

File Info Size Updated
e43xtun1_eng.gif 431 Framework 21 kb 21.08.2002
e43xsyn1_eng.gif 431 Modifications for RF-unit 1 11 kb 09.08.2002
e43xsyn2_eng.gif 431 Modifications for RF-unit 2 6 kb 09.08.2002
e431au1_eng.gif 431 Modifications for audioboard 5 kb 09.08.2002
ehan2102_eng.gif HotLine handset 2102 14 kb 16.08.2002
ehan2101_eng.gif HotLine handset 2101 13 kb 16.08.2002
e43xswsc_eng.gif 431 Antenna switch schematic 5 kb 10.08.2002
ericsw11_eng.gif 431 Antenna switch parts placement 18 kb 09.08.2002
e431_0h.bin Eprom file software for 70cm 32 KB 01.12.2002
OH6MF's 431 page Last modification info (in Finnish) Link    
Instructions by LA2DNA Modification info (in English) Link    

RJ-45 connector on handset
1 - BLACK DATA IN
2 - WHITE GND
3 - ORANG DATA OUT ?
4 - RED POWER ON
5 - BLUE +13V
6 - YELLOW AUDIO IN (MIC)
7 - GREEN PTT
8 - BROWN AUDIO OUT (SPEAKER)