Panasonic Digital Business System - Installation Manual
March 1997
Issue 5
44
Figure 27d - Mounting Two ISDN Trunk Cards
Installing The DASS II MDF
Attach the DASS II MDF to the wall along side the DBS.
Connect a safety earth from the TRS earth screw terminal to the system safety ground. The earthing cable must
have a current rating of 10 Amperes with flexible cords of nominal cross-sectional area being 1mm
2
to 1.5mm
2
.
Connect the Tip (T) and Ring (R) wires from the DASS II NTTP provided by the network carrier to the T and R
terminals on the DASS II MDF using BNC - BNC cables (not supplied).
Connect the cable from the DASS II MDF to CN3 on the DASS II TRK card.
Installing The E-ISDN MDF
The E-ISDN MDF is mounted on the CCU frame above the SLT ring generator. Remove the plastic strips to reveal
the screw holes and secure the MDF using the screws provided.
Connect the cable to CN3 on the E-ISDN TRK card.