3.43 [1-1] Slot—OPB3 Option Card Setup(KX-TDA100/KX-TDA200/KX-TDA600 only)Option cards can be installed to and removed from the OPB3 cards installed in the PBX.Click the right and left arrow buttons (">", "<") to add or remove option cards.Option Card TypeSelects the type of option card to install to the OPB3 card.Value RangeMSG4: 4-Channel Message CardDPH4: 4-Port Doorphone CardDPH2: 2-Port Doorphone CardECHO16: 16-Channel Echo Canceller Card (KX-TDA100/KX-TDA200 only)EIO4: 4-Port External Input/Output CardESVM2: 2-Channel Simplified Voice Message CardESVM4: 4-Channel Simplified Voice Message CardMaintenance Console Location3.43 [1-1] Slot—OPB3 Option Card Setup (KX-TDA100/KX-TDA200/KX-TDA600 only)Installation Manual ReferencesFor KX-TDA100/KX-TDA200:1.3.1 Optional EquipmentFor KX-TDA600:1.3.1 Optional EquipmentProgramming Manual References3.1 [1-1] Slot3.41 [1-1] Slot—OPB3 Card Property (KX-TDA100/KX-TDA200/KX-TDA600 only)Feature Guide ReferencesNoneSlot 1–Slot 3Selects the slot on the OPB3 card to install or remove the option card for.Value RangeNot applicable.Maintenance Console Location3.43 [1-1] Slot—OPB3 Option Card Setup (KX-TDA100/KX-TDA200/KX-TDA600 only)340 PC Programming Manual3.43 [1-1] Slot—OPB3 Option Card Setup (KX-TDA100/KX-TDA200/KX-TDA600 only)