Panasonic DBS 40 Manual page 84

Chapter 4. Trunks and Lines
Section 300~installation
4. Use a standard 50-pin cable to connect the extensions from the MDF to
the appropriate extension connector. (Refer to Tables 4-20 through 4-22
for extension pinouts.)
5. If you are installing a DBS 40 system, attach the EMI filter to the
Figure 4-15.1
4-39
DBS Manual - Issued W/95
DBS-70-300