1.3series (3/1A,3/2A,3/3A)Line Jack Unit 2.telephone box, ... material 4.Size:86x86x8.2mm 3series (3/1A,3/2A,3/3A)Line Jack Unit(telephone box,telephone connector)3 ... /1A,Single Full Master3/2A,Single PABX Master3/3A,Single Secondary3u"~50u" gild plating ... 2R230 for choicesOME service available 3series (3/1A,3/2A,3/3A)Line Jack Unit(telephone box,telephone connector)