Alinco EJ-50U - Manual (Page 20)

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PACTIME command becomes effective when ON is selected. The PACTIME command is not automatically
effective on the EJ-50U.
4-6-7 MAXFRAME
command
Abbrev. : MAX default: 4 parameter: 1-7
Example: MAX 7
This command sets a limit on the number of packets that have not been acknowledged by the receiving station.
Since the size of the EJ-50U’s transmission buffer is limited, the number of outstanding frames and the size of
those frames must be considered. The maximum size and the total of the frames should be less than 330 bites. This
buffer size is the minimum required to send one maximum frame. The information field maximum length is 256
bites, but it becomes this size when other information such as destination callsign and relative relay station data is
included.
4-7 Monitor related commands
There are MONITOR, MCOM, MCON, MALL, MRPT, and TRACE commands available to control the condition
and display on the screen.
4-7-1 Monitor
command
Abbrev: M default: ON parameter: ON/OFF
Example: M ON
This is used to monitor packet communications (or not). If ON is selected, you will see your messages and other
traffic on the monitored frequency, including unproto traffic. If OFF is selected, you will only see packets
addressed to your station.
4-7-2 MCOM
command
Abbrev.: MCOM default: OFF parameter: ON/OFF
Example: MCOM ON
This sets the TNC to monitor certain frames.
If set ON, and MONITOR is set ON, all frames, including control frames, are monitored. If set OFF, it monitors
only I frames (information frames). When ON is selected, the frame status is shown between[< >]. The details are
available from books on packet or on the internet. Frames used in packet communication are listed below:
Types of frames
[I] information frames(I)
[RR] Available for reception frame(RR)
[RNR] Not available for reception frame(RNR)
[REJ] deny frame(REJ)
[C] connection request frame(SABM)
[D] disconnection frame (DISC)
[DM] disconnection notice frame(DM)
[UA] Non numeric system confirmation notice frame (UA)
[FRMR] frame refusal notice frame (FRMR)
[UI] Non numeric system information frame (UI)
Pall / final-bite
[P] pall bite ON
[F] final-bite ON