Agilent Technologies 8935 series e6380a manual Message Focc

Signaling Encoder and Decoder - Screens and Control Fields

Control Fields for the Signaling Encoder and Decoder

Message (FOCC)

Figure 8-6 AMPS-TACS/NAMPS-NTACS FOCC Message and Filler Data Format

The data you enter here............

FOCC

Stream A Filler

Message

Stream B

Filler

Message

T1

T2

Parity

T1 T2

Information

Parity

(2 Bits)

(26 Bits)

(12 Bits)

Contents of the Message or

Filler

Field

WORD B

...........is output in this sequence.

WORD A

10 Bits

11 Bits

40 Bits

40 Bits

40 Bits

DOTTING

WORD

REPEAT 1

REPEAT 1

REPEAT 2

OF

OF

OF

SYNC

WORD A

WORD B

WORD A

Busy/Idle Bits

40 Bits

40 Bits

40 Bits

10 Bits

REPEAT 4

REPEAT 5

REPEAT 5

OF

OF

OF

DOTTING

WORD B

WORD A

WORD B

Message streams A and B specify various forward control channel parameters.

Operating Considerations

Like the filler information, the message information can only be input in full (seven digit) lines. Also, message streams A and B must have the same number of lines in them.

Screens Where Field is Present

SIGNALING ENCODER (Modes: AMPS-TACS, NAMP-NTAC)

268 Chapter 8

C:\Spk\Ref\RefGuideRevE\Enc-dec.fm