RJ11 to RS232 adapters are technically simple, they are a little expensive, found on the Web or in shops specializing...
RJ11 to RS232 adapters ແມ່ນງ່າຍດາຍທາງດ້ານເຕັກນິກ, ພວກເຂົາບໍ່ແພງ, ພວກເຂົາສາມາດພົບເຫັນໄດ້ໃນເວັບໄຊທ໌ຫຼືໃນຮ້ານຄ້າພິເສດ ...