BT Versatility - Basic Rate ISDN Expansion Module; Installing the Basic Rate ISDN Module in the CCU

Basic Rate ISDN expansion module
The ISDN Basic Rate Module provides one Basic Rate ISDN circuit (2B+D).
The module is coloured RED, and can be installed in the CCU and also in the
Ports MDF.
Installing the Basic Rate ISDN Module in the CCU
Remove the cover of the CCU as shown.
Insert the Basic Rate ISDN module in the Network slot or slots in the CCU as shown:
Digital Line Module (ISDN 2)
BT Versatility
Installation and Maintenance Manual
Analogue line module
17
First network module