Does a Terminal Adapter always contain a Codec or Modem?
- 1 Answers
- 1555 Views
- I also Faced
- E-Mail Answers
Answer Posted / silpa
A Terminal Adapter does not necessarily need to have a CODEC inside it.
For example, a basic Terminal Adapter could connect a PC via its serial port to an ISDN network without any requirement for a CODEC.
The bit stream from the serial port is digital, as is the bit stream that goes out to the ISDN. Although a protocol conversion does indeed occur, it is not an analogue to digital conversion, so no CODEC is required.
On the other hand, when an analogue device, such as a fax machine, needs to be connected, then an analogue to digital conversion is necessary and a CODEC will be required.
So, simple Terminal Adapters do not need to have CODECs, but they cannot connect analogue devices to the ISDN.
More sophisticated Terminal Adapters that are able to connect analogue devices to the ISDN do need to have a CODEC.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How ISDN allows multiple devices to share a single line?
What is Fractional PRI?
How to Establish the Link Layer?
What is ISDN's history?
How the structures of BRI and PRI compare
What protocols are used?
What is Soft-fax and Soft-modem?
What item of equipment would be required to connect a modem to ISDN? A terminal adapter.
How ISDNs are connected together?
How to vary the the amount of bandwidth you have available to you?
Why use ISDN?
What are BRI and PRI? What are Channels?
How Analogue fax and modem over ISDN?
Explain the call flow in nss and what is sri signal?
How the B and D channels share the line?
