2.6 Installation of the Other Cards — KX-TDA100/KX-TDA200
2.6.5
MSG4 Card
Function
4-channel message card. To be mounted on the OPB3 card.
OPB3 Card
Accessory and User-supplied Items
Accessory (included): Screws × 3
User-supplied (not included): none
Note
Maximum of 3 MSG4 cards can be mounted on the OPB3 card.
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Installation Manual
MSG4 Card
Screw
inside