BGS2T RS232 BGS2T RS-232 BGS2T RS-232 PACK A BGS2T RS232- PACK B BGS2T RS485 BGS2-W BGS2-W MINIPCIE BGS2-W REL 4.5 L30960-N2210-A4 BGS2-W REL.4 BGS2-W REL.4.5