Instruction manual

61200780L1-1C © 2004 ADTRAN, Inc. 130
ATLAS 800 Series System Manual USSI Option Module
Configuration
User Manual for exact conditions.) If set to FORCED ON, DCD will always be
asserted. If set to
REMOTE RTS, the value of DCD will track the value of the
remote unit’s RTS signal. Note that this feature requires the Inband control
channel to be
ENABLED.
DSR Write security: 3; Read security: 5
Determines the behavior of the Data Set Ready (DSR) signal. If set to
NORMAL,
DSR
will generally be asserted when the interface is capable of passing data. If
set to
FORCED ON, DSR will always be asserted. If set to REMOTE DTR, the value
of DSR will track the value of the remote unit’s DTR signal. This remote feature
requires the Inband control channel to be
ENABLED.
DTR Write security: 3; Read security: 5
Determines whether the ATLAS 800 Series treats a connection as permanent
(
IGNORE) or connects only when Data Terminal Ready (DTR) is active
(
CONNECT ON DTR). Select either IGNORE or CONNECT ON DTR.
0 Inh Write security: 3; Read security: 5
When the port detects an uninterrupted string of 0s being transmitted for more
than one second, setting this parameter to
ON will cause the ATLAS 800 Series
to send 1s toward the network.
Inband Write security: 3; Read security: 5
Creates an inband management channel by robbing 8 kbps bandwidth from the
port’s allocated bandwidth. This channel can be used for management for
ADTRAN products that are not co-located with the ATLAS. Consult the manual
for ADTRAN T1 equipment for details on using this feature.
Send Leads Write security: 3; Read security: 5
Sends the state of the DTE leads to the remote unit whenever any of the leads
change state. If any leads on the remote unit are set to track a remote signal, this
option must be enabled. The DTE lead states are conveyed using the Inband
control channel, which must be enabled (see Table 1 on page 130).
Table 3. USSI Module Send Leads
SIGNAL RTS V.54
LOOPBACK
511 TEST
ON
SELF
TEST
ACTIVE
NETWORK
TEST
ACTIVE
NO DS0
MAPPED
NETWORK
ALARM
CTS Follows Off Off Off Off Off Off
DCD — — — Off Off Off Off
DSR — Off Off Off Off Off —
— = Do not care
Force On = On under all conditions