Zhone IMACS 8000 User Manual page 323

WAN Card
STATE
In the standby state, the WAN port is electrically disconnected from the network. Set this field
to stdby (standby) while configuring WAN links, and then change it to actv (active) when
starting normal operations. If the WAN is in loopback due to a command from a remote
device, the loopback will be dropped if you switch to stdby.
MODE
In cross-connect systems, the Mode automatically defaults to (xcon).
FORMAT
The Format setting specifies the frame format to be used on the WAN link so that it matches
the frame format used by the T1 carrier. Set the Format parameter based on the type of frame
format the T1 carrier requires. If you are using an external Channel Service Unit (CSU), the
frame format must match that of the CSU. The options are d4 (normal superframe), esf
(extended superframe), slc96 (subscriber loop carrier) and slcd4 (subscriber loop carrier - D4).
Table 9-4 lists the DS0 time slots and their corresponding SLC
Bellcore TR-TSY-000008.
LINE CODE
The Line Code setting matches the Line Code used by the T1 interface to that used by the T1
network. Set the Line Code to the type of Line Code used. If you are connected to an external
CSU, the line code must match that of the CSU. The options are ami and b8zs.
PULSE
CSU modules with the Line Code configured for ami mode requires the WAN system or the
attached customer equipment ensure pulse density (also known as ones density). In z15s
mode, the system will monitor the outbound data stream and will place a "1" in the 16th bit
position whenever it detects fifteen consecutive zeros. In the transparent mode (trnsp), the
system will pass all incoming data (the DTE must provide 1s density). If the Line Code
parameter for the CSU is b8zs, the Pulse option will default to trnsp. If the WAN link is
equipped with a DSX plug-in module, this option will automatically default to n/a.
LINE LEN
The Line Length setting adjusts the T1 power level to compensate for the distance the signal
must travel before it reaches the first T1 line repeater or other device. For a DSX interface, the
options are 133, 266, 399, 533, and 655 feet. Or, choose csu to connect the DSX module to
the equipment side of a collocated external CSU.
System Cards
WAN Card User Screens and Settings

assignments, based on
9-23