Arrangements d-13 – AT&T DEFINITY 7200 series User Manual
Page 285
COMMUNICATIONS PROTOCOLS
D-13
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data frames are multiplexed into a DCP and DS1 frame.
The state of the status bit along with its transition from one frame to another frame is used to convey the
state of the following RS-449/V.35 signal leads:
•
Request to Send
(transmit)
•
Clear to Send
(transmit)
•
Send Data
(transmit)
•
Receiver Ready
(receive)
•
Receive Data
(receive)
DATA mode 1
S
I1 I1
I1
. . .
DATA S
DATA S
CONTROL
. . .
F
CHANNEL 1
24
F 1
F
1
DS1/DMI/BOS
. . .
. . .
. . .
I2
I1
. . .
I1 I2
F I1
I2
F
DCP
Figure D-3. Data mode 1 With DCP and DS1/DMI/BOS Frame Multiplexing Arrangements