Panasonic Digital Business System - Installation Manual
March 1997
Issue 5
30
Meter Pulse Detection Cards
Meter pulse detection (MPD) cards are installed one per metered line as daughter boards on the line cards. When
MPD cards are used the -48v power supply (VB3697) must be fitted to power them. If the system consists of more
than one CCU a -48v power supply must be fitted to each CCU where MPD cards are used.
The MPD cards are mounted directly onto the line cards and the -48v power supply unit hooks on below the SLT
ring generator and connects to CN13 at the top left hand end of the MDF.
1
Switch off the DBS and remove the front cover.
2
Withdraw the LINE card and unclip its top cover.
3
Plug the MPD cards into the sockets provided. Ensure that the pins are not damaged when doing this.
4
Replace the LINE card cover and re-install the LINE card.
5
Install the -48v power supply in the left hand side of the CCU and connect to CN13 on the MDF.
6
Replace the system covers and switch the DBS on.
Figure 25 - Installing Meter Pulse Detection Cards
