Quad User Modules
User Manual
80-14001000-03
7–2
7.1 I/DSR
I/DSR will be turned on:
At the end of call set-up to indicate to the DTE that the connection is
established and the Quad User Module is connected to line.
I/DSR will be turned off:
i)
To indicate to the DTE that the call has been cleared down in the
data transfer phase.
ii) In response to a clear request by the DTE turning off circuit C/DTR
while in the data transfer mode.
7.2 C/DTR
C/DTR will be turned on by the DTE:
i)
To instruct the Quad User Module to dial the pre-recorded number
over the ISDN as the calling party.
ii) To instruct the Quad User Module to answer an incoming call, if an
incoming call is present.
C/DTR will be turned off:
i)
To instruct the Quad User Module to clear down the call during data
transfer mode.
ii) To instruct the Quad User Module to abort a call set-up attempt.
7.3 RI
This is provided during an incoming call by the SBUQLS/QLB when
configured for V.35 or V.24, and by SBUQHS/QHB when configured for
V.35.
Summary of Contents for SBUQHS/QHB
Page 92: ...Menu Diagrams 80 14001000 03 12 3...
Page 93: ...Quad User Modules User Manual 80 14001000 03 12 4 12 1 2 SBUQLS QLB Operation Menu...
Page 94: ...Menu Diagrams 80 14001000 03 12 5 12 2 SBUQHS 12 2 1 SBUQHS QHB Operation Menu...
Page 95: ...Quad User Modules User Manual 80 14001000 03 12 6 12 2 2 SBUQHS QHB Configuration Menu...
