User guide

3-14 Encore Multi-port DSU/CSU User GuideÑJuly, 1997
3
Setting the Auxiliary Port and Network Parameters
The optional AUX (DS1) port is designed for connections to DS0 channelized customer
premise devices such as channel banks and PBXs. To enable the DSU/CSU to convert
the framing and line coding between the customer premise devices and the network,
you select the framing and line coding on the AUX port independently from the
network port.
The optional DS1 port monitors the PBX signal for the Blue (AIS) and Yellow alarms,
Loss of Frame, Loss of Signal, BPV and ESF Error Events.
For framing and line code information, refer to your service provider work order.
Table 3-3 UNIT
Parameter Setting Description
Protect Mode Enabled or
Disabled
DefaultÑDisabled. EnabledÑPrevents you from
running tests or making changes from the front panel.
Yellow Alarm
Mode
Enabled or
Disabled
DefaultÑEnabled. EnabledÑThe
DSU/CSU detects
or generates a yellow alarm. DisabledÑThe
DSU/CSU does not detect or generate a yellow alarm.
In D4 framing format, DTE equipment (including
frame relay equipment) using the HDLC or SDLC
protocol may generate Yellow Alarm patterns as part
of its normal trafÞc. The remote
DSU/CSU may
interpret these patterns as yellow alarms. In D4, yellow
alarms also interfere with the data trafÞc. Therefore, it
is recommended that you set this feature to Disabled.