BT Versatility - Manual (Page 19)

BT Versatility
Installation and maintenance Manual
18
To Locate the Digital Line Module (ISDN 2) in the PORTS module
Remove the Ports Module by firstly opening the Ports MDF cover
Open the Ports module and remove it from the MDF
Insert the Digital Line Module (or modules) on the MDF connectors
The upper slot is the first module position
The top connector is for the first module that connects to the Network only.
The lower connector is for the second module. This can be an ISDN 2 Network connection or an internal
ISDN S-bus connection
First network
module
Second Module.
Can be external T or
internal S