Panasonic HYBRID IP-PBX KX-TDA50 - Manual (Page 71)

2.4 Information about the Extension Cards
Installation Manual 71
2.4.6 SLC8 Card (KX-TDA5174)
Function
8-port extension card for SLTs.
Accessories and User-supplied Items
Accessories (included): Extension Bolt × 1, Strap × 1
User-supplied (not included): RJ11 connector
Pin Assignments
RJ11 Connector
Signal Name Function
T Tip
R Ring
– Reserved
To extensions
RJ11
4 1
R T