參數(shù)資料
型號(hào)： LUCL9311GP0DT
英文描述： Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay,and GR-909 Test Access
中文描述： 線路接口和線路接入電路全功能用戶接口高縱向平衡，振鈴繼電器，和GR - 909測(cè)試訪問(wèn)
文件頁(yè)數(shù)： 14/50頁(yè)
文件大?。?/td> 852K
代理商： LUCL9311GP0DT
Data Sheet
July 2001
Ringing Relay, and GR-909 Test Access
L9311 Full-Feature SLIC with High Longitudinal Balance,
14
Agere Systems Inc.
State Definitions
(continued)
Primary Control Modes
(continued)
Disconnect
—
Break Before Make
I
The tip and ring amplifiers are turned off to conserve
power.
I
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.
I
All supervision circuits are powered down; NSTAT
overrides the actual loop condition and is forced high
(on-hook).
Tip Amp
I
Tip side break switch is closed, and ring side break
switch and ring access switches are open.
I
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 Amp
I
Ring side break switch is closed; tip side break
switch and ring access switches are open.
I
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.
Tip and Ring Amp
I
Tip and ring side break switches are open; ring
access switches are open.
I
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.
I
This is the calibration mode for differential and sin-
gle-ended tip/ring current measurements.
Reset
I
Selection of device reset via the RESET pin will set
the device into the disconnect break-before-make
state.
Secondary Control Mode States
Voltage: Tip to Ground
I
A voltage proportional to the tip to ground voltage
appears at the TESTLEV output.
I
TESTSIG input is on.
I
Customer applies ac test tone or V
REF
to TESTSIG to
select an ac or dc measurement.
Voltage: Ring to Ground
I
A voltage proportional to the ring to ground voltage
appears at the TESTLEV output.
I
TESTSIG input is on.
I
Customer applies ac test tone or V
REF
to TESTSIG to
select an ac or dc measurement.
Voltage: Tip to Ring
I
A voltage proportional to the differential tip to ring
voltage appears at the TESTLEV output.
I
TESTSIG input is on.
I
Customer applies ac test tone or V
REF
to TESTSIG to
select an ac or dc measurement.
Current: Tip to Ring
—
VTX
I
A voltage proportional to the ac, plus dc tip to ring dif-
ferential current, tip to ground current, or ring to
ground current appears at the TESTLEV output. Use
this state for dc measurements.
I
Choice is determined by primary control mode table.
I
Differential current is selected by choosing powerup
forward or reverse from the primary control mode
table.
I
Tip to ground or ring to ground current is selected by
first choosing powerup forward or reverse from the
primary mode table, then choosing tip amp or ring
amp from the primary mode table.
I
TESTSIG input is on.
I
Customer applies ac test tone or V
REF
to select an ac
or dc measurement.
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