Lucent Technologies 6000 - Manual (Page 142)

4-10 MAX 6000/3000 Network Configuration Guide
Configuring Individual WAN Connections
The Answer profile
PAD Options
A PAD is an asynchronous terminal concentrator that enables several terminals (or other
asynchronous devices) to share a single network line. The PAD assembles data from terminals
into packets for transmission to a X.25 network, and disassembles incoming packets from the
X.25 network into a separate data stream for each terminal. In addition to this multiplexing
function, the PAD provides a nearly error-free connection. The MAX unit uses the following
parameters in Answer > PAD Options only if the incoming call is unauthenticated:
N2 Retran Count Retry limit—the maximum number of times the MAX unit can
retransmit a frame on an X.75 connection when the T1 Retran Timer
expires.
T1 Retran Timer Maximum amount of time in ticks (1 tick=1/18th of a second) the
transmitter should wait for an acknowledgment before initiating a
recovery procedure.
Frame Length Maximum number of bytes allowed in the information field by V.120
or X.75 terminal adapters that call the unit.
Parameter Specifies
Parameter Specifies
X.25 Prof Name of an X.25 profile to use for this connection.
X.3 Param Prof Default X.3 profile for setting up the PAD for this connection. Note
that a user can specify a profile using a PAD command. In this case,
the profile specified on the command line overrides this default for the
length of the current session.
VC Timer Enable Virtual Call Establishment (VCE) timer on a per-user basis. The VCE
timer specifies the number of seconds to maintain a connection to a
character-oriented device (such as the terminal server) that has not
established a virtual call.
Auto-Call X.121
Addr X.25 host to call immediately when an X.25/PAD session is
established via this Answer profile. If Auto-Call X.121 Addr specifies
an address, the PAD session can begin automatically. Otherwise, the
unit displays the terminal-server prompt, at which the user can issue
the pad command to begin a session.
Reverse Charge Whether or not the call packet should include an X.25 reverse charge
request facility element.
RPOA Set of Recognized Private Operating Agency (RPOA) user facilities to
use in the next call request. The RPOA facilities provide the data
network identification code for the requested initial RPOA transit
network in the form of four decimal digits.