Panasonic DBS 40 Manual page 78

Table 4-20. Pinoats and color codes for extension connector CN12
Extension Slot
DBS 72.
DBS 96)
Note: Only digital extensions can be used in slot ECl. Port 1 is reserved for Attendant 1 and requires a Display Key Phone.
Color Code Pin No.
W-H-BL
26
BL-WH
WH-OR
27
2
OR-WH
WH-GN
28
GN-WH 3
WH-ER 29
DBS Manual - Issued 8/l/95
Desig. Function
Extension Port 1
Extension Port 2
2R
3T Extension Port 3
3R
Extension Port 4