NetVanta 950 IAD Configuration Guide
Configuring Your IAD
61200788L1-29.1B
© 2004 ADTRAN, Inc.
11
To change impedance, click the pulldown menu to select the appropriate terminating impedance for the
interface. There are four possible impedance settings:
600
OHM
,
600
OHM
+ 2.16
U
F
,
900
OHM
, and
900
OHM
+2.16
U
F
.
Answer Supervision
configures answer supervision for the appropriate voice port(s). Answer
supervision (when the far end answers the call) is indicated by using reverse battery polarity. Enabling
this option will cause the FXS interface to interpret reverse battery polarity on the 2-wire interface as
LSAS (Line Side Answer Supervision) and transmit the appropriate signaling bits on the T1. The
LSAS signaling is defined as 0100 (for ESF) or 01/00 (for D4). The carrier must configure the network
T1 for LSAS (if this is not a point-to-point T1).
Signaling
Loop start signaling bridges tip and ring to indicate an off-hook (seizing the line) condition. Ground
start signaling applies resistance to the tip conductor of the circuit to indicate an off-hook (seizing the
line) condition. The signaling mode must match the configuration of the network and the expected
operation with customer premise equipment. The FXS ports are set for loop start signaling by default.
You can scroll down the page and use the
S
TATUS
box to view a snapshot of the current
status and statistics or to get a continuous update of the status and statistics of the FXS
port.
