HP 8920A - Control and Traffic Channel Message Structures; Traffic Channel Message Generation

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S:\HP892XX\USRGUIDE\manual\encoscrn.fb
Chapter 10, Signaling Encoder (AF Generator 2)
MPT 1327 Encoder
When Test Mode is set to Traffic, the control channel filler and message
buffers are disabled, and a traffic channel message buffer is enabled. A message is
sent from the traffic channel message buffer on demand by use of ENC:SEND.
Only messages in message buffer timeslot 1 and any contiguous timeslots are
sent. Refer to
figure 104 .
Figure 104 Traffic Channel Message Generation
Control and Traffic Channel Message Structures
This control is only available using IBASIC commands; it is not displayed on the
MPT 1327 Encoder screen.
In both control and traffic mode, the signaling transmissions commence with the
standard link establishment time (LET), preamble, and SYNC or SYNT pattern,
and the transmissions are terminated with a “hang-over” bit as shown in
figure 105
and
figure 106 .
TO MESSAGE BUFFER
666430CB . . AD
201759BC . . A8