Hi Jim and Mike,
To reset Zetron 48B as factory default you can remove U6 from the Smart Socket and the RAM will be clear. Also you can turn OFF the system and install JP19 to short the leads together and turn ON, when all the led's come ON except Transmit, DTMF and Local, remove JP19. I prefer the first method because I am sure that the RAM is emptied and that it will not be corrupted. The RS232 speed is 4800bps/No parity/8 data bits/1 stop bit and use XOFF/XON protocol. You need a DB-9 cable between the Z48 and you PC. This is the pinout to make your own DB-9M to DB-9F (Z48 pin3 to RS232 pin2) (Z48 pin4 to RS232 pin3) (Z48 pin5 to RS232 pin5) (RS232 pin4 to RS232 pin6) (RS232 pin7 to RS232 pin8) After you need to press ENTER to activate communication, you will see the Top Menu. My manual is for Zetron 48B and also I have Zetron 48-MAX, if you need it I can go to Jetcopy and ask for a price to duplicate the manual. 73' Eric _____ >Does anyone have one? I'd love to at least know how to reset one to >"default", and what speed the RS-232 interface runs at. > >Thanks > >Jim WB8AZP There's a Zetron 48-Jr manual on the Zetron page at www.repeater-builder.com The parts you are looking for MAY be similar, and the manual may be useful to you. The 48 (plain), 48B and 48MAX manuals seem to be unavailable from anyone. Mike WA6ILQ
