Which physical interfaces does an ISDN support

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An Integrated Services Digital Network (ISDN) supports primary rate interfaces (PRIs) and basic rate interfaces (BRIs).

Other related questions:
Does the LTE cellular interface support PPP
The LTE cellular interface supports PPP. The following physical interfaces also support PPP: - Synchronous or asynchronous serial interface working in synchronous mode (the interface type is the serial interface) - Async interface working in protocol mode - Serial interfaces formed by CE1/PRI or CT1/PRI interfaces, which have the same logical features as synchronous serial interfaces - Serial interfaces formed by CE3 or CT3 interfaces, which have the same logical features as synchronous serial interfaces - Serial interfaces formed by E1-F or T1-F interfaces, which have the same logical features as synchronous serial interfaces - Serial interfaces formed by E1/T1 channels that are channelized from a CPOS interface, which have the same logical features as synchronous serial interfaces - Cellular interfaces - ISDN BRI interfaces - POS interfaces Note: For LTE cellular interfaces, only the E392 data cards support the link-protocol ppp command.

What working mode does an ISDN S/T interface support
ISDN S/T interfaces support the P2P and P2MP modes. The default working mode is P2MP.

What line clock modes does an ISDN S/T interface support
ISDN S/T interfaces support the network termination (NT) and terminal equipment (TE) line clock modes. The default line clock mode is NT.

What is the maximum bandwidth that is supported by an ISDN interface
The maximum bandwidth supported by an Integrated Services Digital Network (ISDN) primary rate interfaces (PRIs) is 2.048 Mbit/s. The maximum bandwidth supported by a basic rate interfaces (BRIs) is 128 kbit/s.

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