Panasonic KX-TDA30 Installation Manual page 226

2.12.1 Power Failure Connections
Switch Settings
Switch
PFT Setting
RJ45 Connector LINE 1 Pin Assignments
TX1(+)
RX2(+)
RX1(-)
TX2(-)
1 8
RJ45 Connector LINE 2 Pin Assignments
RX2(+)
TX1(+)
TX2(-)
RX1(-)
1 8
226 Installation Manual
Type Usage and Status Definition
DIP Set all DIP switches to "ON" positions to use LINE 1 and LINE 2 as a
PFT port.
LINE 1: Power Failure LINE (NT1)
LINE 2: Power Failure EXTN (extension)
Signal Name
TX1
RX2
RX1
TX2
–
Signal Name
RX2
TX1
TX2
RX1
–
Level [V] Function
(+) Transmit data 1
(+) Receive data 2
(-) Receive data 1
(-) Transmit data 2
– Reserved
Level [V] Function
(+) Receive data 2
(+) Transmit data 1
(-) Transmit data 2
(-) Receive data 1
– Reserved