LUCL9310AP-D AGERE [Agere Systems], LUCL9310AP-D Datasheet - Page 17

• Manufacturer Part Number: LUCL9310AP-D
• Description: Line Interface and Line Access Circuit Full-Feature SLIC,Ringing Relay,and Test Access Device
• Manufacturer: AGERE [Agere Systems]

July 2001
State Definitions
Primary Control Modes
Ringing
Disconnect—Break Before Make
Tip Amp
Ring Amp
Agere Systems Inc.
Switch break switches (SW1 and SW2) are open,
and ring access switches (SW3 and SW4) are
closed.
Tip/ring drive amplifiers are powered down.
Ring trip circuit is active.
Loop supervision and common-mode current detec-
tors are powered down.
NSTAT represents the ring trip detector status.
The tip and ring amplifiers are turned off to conserve
power.
Break switches (SW1 and SW2) are open, and ring
access switches (SW3 and SW4) are open. This
mode is also used as a transitional mode to achieve
break-before-make switching from the power ring to
active or scan mode.
All supervision circuits are powered down; NSTAT
overrides the actual loop condition and is forced high
(on-hook).
Tip side break switch is closed, and ring side break
switch and ring access switches are open.
SLIC mode is unaffected by reconfiguring the ring
relay via this mode; thus, SLIC will remain in the
mode it was in prior to selecting this mode.
Ring side break switch is closed; tip side break
switch and ring access switches are open.
SLIC mode is unaffected by reconfiguring the ring
relay via this mode; thus, SLIC will remain in the
mode it was in prior to selecting this mode.
(continued)
(continued)
Full-Feature SLIC, Ringing Relay, and Test Access Device
Tip and Ring Amp
Reset
Secondary Control Mode States
Voltage: Tip to Ground
Voltage: Ring to Ground
Voltage: Tip to Ring
Tip and ring side break switches are open; ring
access switches are open.
SLIC mode is unaffected by reconfiguring the break
switches via this mode; thus, SLIC will remain in the
mode it was in prior to selecting this mode.
This is the calibration mode for differential and sin-
gle-ended tip/ring current measurements.
Selection of device reset via the RESET pin will set
the device into the disconnect break-before-make
state.
A voltage proportional to the tip to ground voltage
appears at the TESTLEV output.
TESTSIG input is on.
Customer applies ac test tone or V
select an ac or dc measurement.
A voltage proportional to the ring to ground voltage
appears at the TESTLEV output.
TESTSIG input is on.
Customer applies ac test tone or V
select an ac or dc measurement.
A voltage proportional to the differential tip to ring
voltage appears at the TESTLEV output.
TESTSIG input is on.
Customer applies ac test tone or V
select an ac or dc measurement.
REF
REF
REF
to TESTSIG to
to TESTSIG to
to TESTSIG to
17