🚀 go-pugleaf

Is there such a device as an ASYNC/SYNC Converter?  For
example, it would plug into a COM port on a PC, and would
also plug into a SYNC terminal adaptor: 

          ASYNC                      SYNC
           V.24                      V.24
            |                         |
            V                         V
   ------        -------------------     -----------
   | PC |--------| ASYNC/SYNC CONV |-----| ISDN TA |----
   ------        -------------------     -----------

In the above configuration, must there be a data link
protocol (BI-SYNC, HDLC, etc...) running between the
converter and TA?  Or, can the timing signal be used
in order to extract the data?  

I suppose the other option I have is to purchase a
SYNC serial port for the PC?   In this case, must a
data link protocol run between the serial port and TA?
Any good recommendations?

Thankyou,

justin