le79234-sw Zarlink Semiconductor, le79234-sw Datasheet - Page 12

• Manufacturer Part Number: le79234-sw
• Description: Voiceedgetm Control Processor Software Package Next Generation Carrier Chipset Ngcc
• Manufacturer: Zarlink Semiconductor

1.9.1
Configuration C topology has the following features:
•
•
•
Configuration C supports the relay states listed in
for the various relay states is listed in
VP_RELAY_NORMAL
VP_RELAY_TALK
VP_RELAY_BRIDGED_TEST
POTS service.
Foreign voltages in excess of the SLIC power rail voltages can be measured when the PTC’s are activated
or if the fault current doesn’t exceed the SLIC current drive capability.
The test load resistor is used for self-testing.
•
No disconnect relay. There is no mean to disconnect the line from the loop during inward looking test,
therefore Self Test can only be performed in the factory. The published Self Test accuracies are given for
production testing only, when no loop is connected to the equipment port. If Self Tests are performed in
the field, the host application needs to take into account any loop impedance present.
Configuration C Topology (VP_TERM_FXS_GENERIC)
Software State (VpRelayState)
Le79271
NGSLAC SVA
NGSLAC SVB
SLIC
VBP
VBH
AD
AD
TLD
BD
BD
Table 3 - Software States for Configuration C
RSVA
RSVB
R
(optional)
Table
LOAD
Figure 2 - Configuration C Topology
4.
Zarlink Semiconductor Inc.
Over-Voltage
Protection
Le79234-SW
Test load switch off
Test load switch on
Test load switch off
Table
12
3. See the API-II Reference Guide for details. Connectivity
PTC or
Resistor
PTC or
Resistor
Description
A (TIP)
B (RING)
Data Sheet