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Chapter 8 261
Signaling Encoder and Decoder - Screens and Control Fields
Control Fields for the Signaling Encoder and Decoder
Busy/Idle
This field selects the busy/idle status information to be included in the
signaling sequence.
• Idle sets the busy/idle bits of the forward control channel
information to indicate an idle state.
• Busy sets the busy/idle bits of the forward control channel
information to indicate a busy state.
• WS Delay, word sync delay, prevents a busy/idle change until the
word sync information has been received and a defined number of
delay bits has been counted. The delay bit value is set in the B/I
Delay field.
• 1stBitDly, first bit delay causes the busy/idle bit to be set after a bit
has been received and a defined number of delay bits has been
counted. The delay bit value is set in the B/I Delay field.
Screens Where Field is Present
SIGNALING ENCODER (Modes: AMPS-TACS, NAMP-NTAC)
Channel
For the Signaling Decoder this field selects the type of data to decode:
Reverse Control Channel (Cntl), or Reverse Voice Channel (Voice).
For the Signaling Encoder this field selects the forward control channel
(FOCC) or forward voice control (FVC) menus.
Screens Where Field is Present
SIGNALING DECODER (Modes: AMPS-TACS, NAMP-NTAC)
SIGNALING ENCODER (Modes: AMPS-TACS, NAMP-NTAC)
Data (hex)
This display field lists the decoded data serially as it is received. This
field is labeled RECC Data (hex) for the NAMPS-NTACS mode, but
performs the same function.
Screens Where Field is Present
SIGNALING DECODER (Modes: AMPS-TACS, NAMP-NTAC)