Eicon Networks 1550 - Manual (Page 106)

Web Interface Settings Glossary 106
Protocol Menu (VHSI Tree) > Timers Group (X.25)
These parameters are only available when the protocol is set to X.25.
T20 - Packet Level Restart Timer
The Packet Level Restart Timer is started when a Restart Request packet is sent. It is
stopped when a Restart Confirm or Restart Request packet is received. On expiration,
the Packet Level interface is closed.
Range: 0-999 seconds. Default: 60.
T21- Call Supervision Timer
The Call Supervision Timer is started when a Call Request packet is sent. It is stopped
when a Call Accepted or Call Cleared packet is received. On expiration, a Clear
Request packet is sent.
Range: 0-999 seconds. Default: 60.
T22 - Reset Supervision Timer
The Reset Supervision timer is started when a Reset Request packet is sent. It is
stopped when a Reset Confirmed or Reset Request packet is received. On expiration,
the Reset Request packet is retransmitted.
Range: 0-999 seconds. Default: 60.
T23 - Clear Supervision Timer
The Clear Supervision Timer is started when a Clear Request packet is sent. It is
stopped when a Clear Indication or Clear Confirmation is received. On expiration, the
Clear Request packet is retransmitted.
Range: 0 to 999 seconds. Default: 60.
Acknowledge Timer
Defines the Acknowledge Timer, which is how long, in milliseconds, the line can
remain idle before an RR (Receiver Ready) is sent to the remote. This lets the remote
know that the connection is still active. The remote will respond with an RR.
Range: 0-9999. Default: 20.