Instruction manual

Lines
Table 3-5 Timers and Counters
Allowable
Name
Description
Factory Setting
Threshold
T200 Timer
Times the delay in link-layer acknowledgement of a 1 second
100-3000 ms
message sent over a D channel from the system to
the network.
T203 Timer
Times the interval of each exchange of messages on
30 seconds
1-60 seconds
the D channel between the system and the network.
N200 Counter
Counts the times the system has transmitted a 3 transmissions
1–5 transmissions
message on a D channel when no link-layer
acknowledgement is received from the network.
N201 Counter
Counts the maximum number of layer-3 octets the 260 octets
16-260 octets
system can send or receive in a single D-channel
message.
K Counter
Counts the layer-3 unacknowledged messages sent 7 frames
1-15 frames
on a D channel from the system to the network.
T303 Timer
Times the delay in network response when the 4 seconds
4-12 seconds
system sends a setup message to initiate an
outgoing call.
T305 Timer
Times the delay in network response when the
4 seconds 4-30 seconds
system sends a disconnect message to clear a call.
T308 Timer Times the delay in network response when the
4 seconds 4-12 seconds
system sends a release message to clear a call.
T309 Timer Times the duration of a D-channel data-link failure,
90 seconds 30-120 seconds
which consists of a loss of signaling for the entire PRI
connection.
T310 Timer Times the network delay following the receipt of a
10 seconds 2–10 seconds
call-proceeding message on an outgoing call.
T313 Timer Times the delay in network response when the
4 seconds
4-12 seconds
system sends a connect message that indicates the
completion of an incoming call.
T316 Timer
Times the delay in network response when the
120 seconds 3-120 seconds
system sends a restart message to clear a B
channel.
3-24 Line options